From 559579c4d79aa3051ae5723a5f5e9aaf763e8116 Mon Sep 17 00:00:00 2001
From: cjamcl <cjamcl@google.com>
Date: Fri, 31 May 2019 07:10:40 -0700
Subject: [PATCH 001/110] misc: release script should commit with format vX.Y.Z
 (#9090)

---
 lighthouse-core/scripts/release/prepare-commit.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lighthouse-core/scripts/release/prepare-commit.sh b/lighthouse-core/scripts/release/prepare-commit.sh
index 1f7bd65c67c6..f143149e0c78 100755
--- a/lighthouse-core/scripts/release/prepare-commit.sh
+++ b/lighthouse-core/scripts/release/prepare-commit.sh
@@ -64,7 +64,7 @@ if [[ $(echo "$NEW_CONTRIBUTORS" | wc -l) -gt 1 ]]; then
 fi
 
 git add changelog.md lighthouse-core/test/results/ proto/
-git commit -m "$NEW_VERSION"
+git commit -m "v$NEW_VERSION"
 
 echo "Version bump commit ready on the ${TXT_BOLD}$BRANCH_NAME${TXT_RESET} branch!"
 

From 0eacf068b43f9306e9055c1d0ff19987d4fde56c Mon Sep 17 00:00:00 2001
From: Brendan Kenny <bckenny@gmail.com>
Date: Fri, 31 May 2019 12:56:29 -0700
Subject: [PATCH 002/110] deps: update bundlesize, add more budgets (#9089)

---
 package.json |  14 +-
 yarn.lock    | 609 ++++++++++++++++++++++-----------------------------
 2 files changed, 278 insertions(+), 345 deletions(-)

diff --git a/package.json b/package.json
index 3fa91f0070b7..2af0149e182d 100644
--- a/package.json
+++ b/package.json
@@ -101,7 +101,7 @@
     "babel-plugin-syntax-object-rest-spread": "^6.13.0",
     "brfs": "^1.6.1",
     "browserify": "^16.2.3",
-    "bundlesize": "^0.14.4",
+    "bundlesize": "^0.17.2",
     "chalk": "^2.4.1",
     "codecov": "^3.2.0",
     "commitizen": "^2.10.1",
@@ -180,11 +180,19 @@
   "bundlesize": [
     {
       "path": "./dist/extension/scripts/lighthouse-ext-bundle.js",
-      "threshold": "520 Kb"
+      "maxSize": "520 kB"
+    },
+    {
+      "path": "./dist/lightrider/lighthouse-lr-bundle.js",
+      "maxSize": "1.1 MB"
     },
     {
       "path": "./dist/viewer/src/viewer.js",
-      "threshold": "75 Kb"
+      "maxSize": "75 kB"
+    },
+    {
+      "path": "./dist/lighthouse-dt-bundle.js",
+      "maxSize": "400 kB"
     }
   ],
   "nyc": {
diff --git a/yarn.lock b/yarn.lock
index 1546a5507ce0..db33cf0d9f32 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -883,20 +883,6 @@ ajv@^5.3.0:
     fast-json-stable-stringify "^2.0.0"
     json-schema-traverse "^0.3.0"
 
-align-text@^0.1.1, align-text@^0.1.3:
-  version "0.1.4"
-  resolved "https://registry.yarnpkg.com/align-text/-/align-text-0.1.4.tgz#0cd90a561093f35d0a99256c22b7069433fad117"
-  integrity sha1-DNkKVhCT810KmSVsIrcGlDP60Rc=
-  dependencies:
-    kind-of "^3.0.2"
-    longest "^1.0.1"
-    repeat-string "^1.5.2"
-
-amdefine@>=0.0.4:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/amdefine/-/amdefine-1.0.0.tgz#fd17474700cb5cc9c2b709f0be9d23ce3c198c33"
-  integrity sha1-/RdHRwDLXMnCtwnwvp0jzjwZjDM=
-
 angular@^1.7.4:
   version "1.7.4"
   resolved "https://registry.yarnpkg.com/angular/-/angular-1.7.4.tgz#c1bf4884c2d470c06907737a1bf0835a9f646f31"
@@ -973,6 +959,11 @@ append-transform@^1.0.0:
   dependencies:
     default-require-extensions "^2.0.0"
 
+aproba@^1.0.3:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/aproba/-/aproba-1.2.0.tgz#6802e6264efd18c790a1b0d517f0f2627bf2c94a"
+  integrity sha512-Y9J6ZjXtoYh8RnXVCMOU/ttDmk1aBjunq9vO0ta5x85WDQiQfUF9sIPBITdbiiIVcBo03Hi3jMxigBtsddlXRw==
+
 archiver-utils@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/archiver-utils/-/archiver-utils-2.0.0.tgz#5639818a8b5d89d0ffc51b72c39283cf4fea14a1"
@@ -1009,6 +1000,14 @@ archy@^1.0.0:
   resolved "https://registry.yarnpkg.com/archy/-/archy-1.0.0.tgz#f9c8c13757cc1dd7bc379ac77b2c62a5c2868c40"
   integrity sha1-+cjBN1fMHde8N5rHeyxipcKGjEA=
 
+are-we-there-yet@~1.1.2:
+  version "1.1.5"
+  resolved "https://registry.yarnpkg.com/are-we-there-yet/-/are-we-there-yet-1.1.5.tgz#4b35c2944f062a8bfcda66410760350fe9ddfc21"
+  integrity sha512-5hYdAkZlcG8tOLujVDTgCT+uPX0VnpAH28gWsLfzpXYm7wP6mp5Q/gYyR7YQ0cKVJcXJnl3j2kpBan13PtQf6w==
+  dependencies:
+    delegates "^1.0.0"
+    readable-stream "^2.0.6"
+
 argparse@^1.0.7:
   version "1.0.9"
   resolved "https://registry.yarnpkg.com/argparse/-/argparse-1.0.9.tgz#73d83bc263f86e97f8cc4f6bae1b0e90a7d22c86"
@@ -1146,11 +1145,6 @@ async-limiter@~1.0.0:
   resolved "https://registry.yarnpkg.com/async-limiter/-/async-limiter-1.0.0.tgz#78faed8c3d074ab81f22b4e985d79e8738f720f8"
   integrity sha512-jp/uFnooOiO+L211eZOoSyzpOITMXx1rBITauYykG3BRYPu8h0UcxsPNB04RR5vo4Tyz3+ay17tR6JVf9qzYWg==
 
-async@^1.4.0:
-  version "1.5.2"
-  resolved "https://registry.yarnpkg.com/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
-  integrity sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo=
-
 async@^2.0.0, async@^2.6.1:
   version "2.6.1"
   resolved "https://registry.yarnpkg.com/async/-/async-2.6.1.tgz#b245a23ca71930044ec53fa46aa00a3e87c6a610"
@@ -1158,18 +1152,6 @@ async@^2.0.0, async@^2.6.1:
   dependencies:
     lodash "^4.17.10"
 
-async@^2.5.0:
-  version "2.6.2"
-  resolved "https://registry.yarnpkg.com/async/-/async-2.6.2.tgz#18330ea7e6e313887f5d2f2a904bac6fe4dd5381"
-  integrity sha512-H1qVYh1MYhEEFLsP97cVKqCGo7KfCyTt6uEWqsTBr9SO84oK9Uwbyd/yCW+6rKJLHksBNUVWZDAjfS+Ccx0Bbg==
-  dependencies:
-    lodash "^4.17.11"
-
-async@~0.2.6:
-  version "0.2.10"
-  resolved "https://registry.yarnpkg.com/async/-/async-0.2.10.tgz#b6bbe0b0674b9d719708ca38de8c237cb526c3d1"
-  integrity sha1-trvgsGdLnXGXCMo43owjfLUmw9E=
-
 async@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/async/-/async-1.0.0.tgz#f8fc04ca3a13784ade9e1641af98578cfbd647a9"
@@ -1207,12 +1189,12 @@ axios@0.15.3:
   dependencies:
     follow-redirects "1.0.0"
 
-axios@^0.16.2:
-  version "0.16.2"
-  resolved "https://registry.yarnpkg.com/axios/-/axios-0.16.2.tgz#ba4f92f17167dfbab40983785454b9ac149c3c6d"
-  integrity sha1-uk+S8XFn37q0CYN4VFS5rBScPG0=
+axios@^0.18.0:
+  version "0.18.0"
+  resolved "https://registry.yarnpkg.com/axios/-/axios-0.18.0.tgz#32d53e4851efdc0a11993b6cd000789d70c05102"
+  integrity sha1-MtU+SFHv3AoRmTts0AB4nXDAUQI=
   dependencies:
-    follow-redirects "^1.2.3"
+    follow-redirects "^1.3.0"
     is-buffer "^1.1.5"
 
 babel-code-frame@^6.22.0, babel-code-frame@^6.26.0:
@@ -1502,6 +1484,14 @@ brorand@^1.0.1:
   resolved "https://registry.yarnpkg.com/brorand/-/brorand-1.1.0.tgz#12c25efe40a45e3c323eb8675a0a0ce57b22371f"
   integrity sha1-EsJe/kCkXjwyPrhnWgoM5XsiNx8=
 
+brotli-size@0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/brotli-size/-/brotli-size-0.1.0.tgz#a2c518096c7c1a75e9e66908a42cd9dc77d2b69f"
+  integrity sha512-5ny7BNvpe2TSmdafF1T9dnFYp3AIrJ8qJt29K0DQJzORlK38LBim/CmlY26JtreV6SWmXza7Oa+9m61SzvxR0Q==
+  dependencies:
+    duplexer "^0.1.1"
+    iltorb "^2.4.3"
+
 browser-pack@^6.0.1:
   version "6.1.0"
   resolved "https://registry.yarnpkg.com/browser-pack/-/browser-pack-6.1.0.tgz#c34ba10d0b9ce162b5af227c7131c92c2ecd5774"
@@ -1684,11 +1674,6 @@ buffer-from@^1.0.0:
   resolved "https://registry.yarnpkg.com/buffer-from/-/buffer-from-1.1.0.tgz#87fcaa3a298358e0ade6e442cfce840740d1ad04"
   integrity sha512-c5mRlguI/Pe2dSZmpER62rSCu0ryKmWddzRYsuXc50U2/g8jMOulc31VZMa4mYx31U5xsmSOpDCgH88Vl9cDGQ==
 
-buffer-shims@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/buffer-shims/-/buffer-shims-1.0.0.tgz#9978ce317388c649ad8793028c3477ef044a8b51"
-  integrity sha1-mXjOMXOIxkmth5MCjDR37wRKi1E=
-
 buffer-xor@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/buffer-xor/-/buffer-xor-1.0.3.tgz#26e61ed1422fb70dd42e6e36729ed51d855fe8d9"
@@ -1712,25 +1697,26 @@ builtin-status-codes@^3.0.0:
   resolved "https://registry.yarnpkg.com/builtin-status-codes/-/builtin-status-codes-3.0.0.tgz#85982878e21b98e1c66425e03d0174788f569ee8"
   integrity sha1-hZgoeOIbmOHGZCXgPQF0eI9Wnug=
 
-bundlesize@^0.14.4:
-  version "0.14.4"
-  resolved "https://registry.yarnpkg.com/bundlesize/-/bundlesize-0.14.4.tgz#ad53c4a1a4ba71810967575c550bc04f3d18d421"
-  integrity sha512-Qi04ADUB+FoeBD98XuSLNt54SW4onfMyuNHnyaHS6rq6/+D11RR+lzADoxFmf5ei9iu1sBqxdltAh6lbJGCT0Q==
+bundlesize@^0.17.2:
+  version "0.17.2"
+  resolved "https://registry.yarnpkg.com/bundlesize/-/bundlesize-0.17.2.tgz#d31a80ffe1591251411ad730442eb4e20790f827"
+  integrity sha512-cJAZ6wvs6IHQCnUn9kTme4GL+ahoICjcS0QPcGTj61Hl4bCc8wKkkVLUote4k/1yxa0+kUIrIo9wyNJ+XIciEw==
   dependencies:
-    axios "^0.16.2"
-    bytes "^2.5.0"
+    axios "^0.18.0"
+    brotli-size "0.1.0"
+    bytes "^3.1.0"
     ci-env "^1.4.0"
-    commander "^2.11.0"
+    commander "^2.20.0"
     github-build "^1.2.0"
-    glob "^7.1.2"
-    gzip-size "^3.0.0"
+    glob "^7.1.4"
+    gzip-size "^4.0.0"
     prettycli "^1.4.3"
-    read-pkg-up "^2.0.0"
+    read-pkg-up "^3.0.0"
 
-bytes@^2.5.0:
-  version "2.5.0"
-  resolved "https://registry.yarnpkg.com/bytes/-/bytes-2.5.0.tgz#4c9423ea2d252c270c41b2bdefeff9bb6b62c06a"
-  integrity sha1-TJQj6i0lLCcMQbK97+/5u2tiwGo=
+bytes@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/bytes/-/bytes-3.1.0.tgz#f6cf7933a360e0588fa9fde85651cdc7f805d1f6"
+  integrity sha512-zauLjrfCG+xvoyaqLoV8bLVXXNGC4JqlxFCutSDWA6fJrTo2ZuvLYTqZ7aHBLZSMOopbzwv8f+wZcVzfVTI2Dg==
 
 cache-base@^1.0.1:
   version "1.0.1"
@@ -1799,11 +1785,6 @@ camelcase-keys@^2.0.0:
     camelcase "^2.0.0"
     map-obj "^1.0.0"
 
-camelcase@^1.0.2:
-  version "1.2.1"
-  resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-1.2.1.tgz#9bb5304d2e0b56698b2c758b08a3eaa9daa58a39"
-  integrity sha1-m7UwTS4LVmmLLHWLCKPqqdqlijk=
-
 camelcase@^2.0.0, camelcase@^2.0.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-2.1.1.tgz#7c1d16d679a1bbe59ca02cacecfb011e201f5a1f"
@@ -1836,14 +1817,6 @@ caseless@~0.12.0:
   resolved "https://registry.yarnpkg.com/caseless/-/caseless-0.12.0.tgz#1b681c21ff84033c826543090689420d187151dc"
   integrity sha1-G2gcIf+EAzyCZUMJBolCDRhxUdw=
 
-center-align@^0.1.1:
-  version "0.1.3"
-  resolved "https://registry.yarnpkg.com/center-align/-/center-align-0.1.3.tgz#aa0d32629b6ee972200411cbd4461c907bc2b7ad"
-  integrity sha1-qg0yYptu6XIgBBHL1EYckHvCt60=
-  dependencies:
-    align-text "^0.1.3"
-    lazy-cache "^1.0.3"
-
 chalk@1.1.3, chalk@^1.0.0, chalk@^1.1.3:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/chalk/-/chalk-1.1.3.tgz#a8115c55e4a702fe4d150abd3872822a7e09fc98"
@@ -1855,7 +1828,7 @@ chalk@1.1.3, chalk@^1.0.0, chalk@^1.1.3:
     strip-ansi "^3.0.0"
     supports-color "^2.0.0"
 
-chalk@2.1.0, chalk@^2.0.0, chalk@^2.1.0:
+chalk@2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.1.0.tgz#ac5becf14fa21b99c6c92ca7a7d7cfd5b17e743e"
   integrity sha512-LUHGS/dge4ujbXMJrnihYMcL4AoOweGnw9Tp3kQuqy1Kx5c1qKjqvMJZ6nVJPMWJtKCTN72ZogH3oeSO9g9rXQ==
@@ -1864,16 +1837,7 @@ chalk@2.1.0, chalk@^2.0.0, chalk@^2.1.0:
     escape-string-regexp "^1.0.5"
     supports-color "^4.0.0"
 
-chalk@^2.0.1, chalk@^2.4.1:
-  version "2.4.1"
-  resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.4.1.tgz#18c49ab16a037b6eb0152cc83e3471338215b66e"
-  integrity sha512-ObN6h1v2fTJSmUXoS3nMQ92LbDK9be4TV+6G+omQlGJFdcUX5heKi1LZ1YnRMIgwTLEj3E24bT6tYni50rlCfQ==
-  dependencies:
-    ansi-styles "^3.2.1"
-    escape-string-regexp "^1.0.5"
-    supports-color "^5.3.0"
-
-chalk@^2.4.2:
+chalk@^2.0.0, chalk@^2.0.1, chalk@^2.1.0, chalk@^2.4.1, chalk@^2.4.2:
   version "2.4.2"
   resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.4.2.tgz#cd42541677a54333cf541a49108c1432b44c9424"
   integrity sha512-Mti+f9lpJNcwF4tWV8/OrTTtF1gZi+f8FqlyAdouralcFWFQWF2+NgCHShjkCb+IFBLq9buZwE1xckQU4peSuQ==
@@ -1896,6 +1860,11 @@ chardet@^0.4.0:
   resolved "https://registry.yarnpkg.com/chardet/-/chardet-0.4.2.tgz#b5473b33dc97c424e5d98dc87d55d4d8a29c8bf2"
   integrity sha1-tUc7M9yXxCTl2Y3IfVXU2KKci/I=
 
+chownr@^1.0.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/chownr/-/chownr-1.1.1.tgz#54726b8b8fff4df053c42187e801fb4412df1494"
+  integrity sha512-j38EvO5+LHX84jlo6h4UzmOwi0UgW61WRyPtJz4qaadK5eY3BTS5TY/S1Stc3Uk2lIM6TPevAlULiEJwie860g==
+
 chrome-launcher@^0.10.7:
   version "0.10.7"
   resolved "https://registry.yarnpkg.com/chrome-launcher/-/chrome-launcher-0.10.7.tgz#5e2a9e99f212e0501d9c7024802acd01a812f5d5"
@@ -1969,15 +1938,6 @@ cli-width@^2.0.0:
   resolved "https://registry.yarnpkg.com/cli-width/-/cli-width-2.1.0.tgz#b234ca209b29ef66fc518d9b98d5847b00edf00a"
   integrity sha1-sjTKIJsp72b8UY2bmNWEewDt8Ao=
 
-cliui@^2.1.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/cliui/-/cliui-2.1.0.tgz#4b475760ff80264c762c3a1719032e91c7fea0d1"
-  integrity sha1-S0dXYP+AJkx2LDoXGQMukcf+oNE=
-  dependencies:
-    center-align "^0.1.1"
-    right-align "^0.1.1"
-    wordwrap "0.0.2"
-
 cliui@^3.0.3:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/cliui/-/cliui-3.2.0.tgz#120601537a916d29940f934da3b48d585a39213d"
@@ -2061,15 +2021,10 @@ combined-stream@^1.0.6, combined-stream@~1.0.6:
   dependencies:
     delayed-stream "~1.0.0"
 
-commander@^2.11.0:
-  version "2.11.0"
-  resolved "https://registry.yarnpkg.com/commander/-/commander-2.11.0.tgz#157152fd1e7a6c8d98a5b715cf376df928004563"
-  integrity sha512-b0553uYA5YAEGgyYIGYROzKQ7X5RAqedkfjiZxwi0kL1g3bOaBNNZfYkzt/CL0umgD5wc9Jec2FbB98CjkMRvQ==
-
-commander@^2.18.0:
-  version "2.19.0"
-  resolved "https://registry.yarnpkg.com/commander/-/commander-2.19.0.tgz#f6198aa84e5b83c46054b94ddedbfed5ee9ff12a"
-  integrity sha512-6tvAOO+D6OENvRAh524Dh9jcfKTYDQAqvqezbCW82xj5X0pSrcpxtvRKHLG0yBY6SD7PSDrJaj+0AiOcKVd1Xg==
+commander@^2.18.0, commander@^2.20.0:
+  version "2.20.0"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-2.20.0.tgz#d58bb2b5c1ee8f87b0d340027e9e94e222c5a422"
+  integrity sha512-7j2y+40w61zy6YC2iRNpUe/NwhNyoXrYpHMrSunaMG64nRnaf96zO/KMQR4OyN/UnE5KLyEBnKHd4aG3rskjpQ==
 
 commander@~2.17.1:
   version "2.17.1"
@@ -2193,6 +2148,11 @@ console-browserify@^1.1.0:
   dependencies:
     date-now "^0.1.4"
 
+console-control-strings@^1.0.0, console-control-strings@~1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/console-control-strings/-/console-control-strings-1.1.0.tgz#3d7cf4464db6446ea644bf4b39507f9851008e8e"
+  integrity sha1-PXz0Rk22RG6mRL9LOVB/mFEAjo4=
+
 constants-browserify@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/constants-browserify/-/constants-browserify-1.0.0.tgz#c20b96d8c617748aaf1c16021760cd27fcb8cb75"
@@ -2654,26 +2614,19 @@ dateformat@^1.0.11, dateformat@^1.0.12:
     get-stdin "^4.0.1"
     meow "^3.3.0"
 
-debug@2.6.9, debug@^2.3.3:
+debug@2.6.9, debug@^2.2.0, debug@^2.3.3, debug@^2.6.8:
   version "2.6.9"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.9.tgz#5d128515df134ff327e90a4c93f4e077a536341f"
   integrity sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==
   dependencies:
     ms "2.0.0"
 
-debug@^2.2.0, debug@^2.4.5, debug@^2.6.8:
-  version "2.6.8"
-  resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.8.tgz#e731531ca2ede27d188222427da17821d68ff4fc"
-  integrity sha1-5zFTHKLt4n0YgiJCfaF4IdaP9Pw=
+debug@^3.1.0, debug@^3.2.6:
+  version "3.2.6"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-3.2.6.tgz#e83d17de16d8a7efb7717edbe5fb10135eee629b"
+  integrity sha512-mel+jf7nrtEl5Pn1Qx46zARXKDpBbvzezse7p7LqINmdoIk8PYP5SySaxEmYv6TZ0JyEKA1hsCId6DIhgITtWQ==
   dependencies:
-    ms "2.0.0"
-
-debug@^3.1.0:
-  version "3.1.0"
-  resolved "https://registry.yarnpkg.com/debug/-/debug-3.1.0.tgz#5bb5a0672628b64149566ba16819e61518c67261"
-  integrity sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==
-  dependencies:
-    ms "2.0.0"
+    ms "^2.1.1"
 
 debug@^4.1.0, debug@^4.1.1:
   version "4.1.1"
@@ -2682,7 +2635,7 @@ debug@^4.1.0, debug@^4.1.1:
   dependencies:
     ms "^2.1.1"
 
-decamelize@^1.0.0, decamelize@^1.1.1, decamelize@^1.1.2, decamelize@^1.2.0:
+decamelize@^1.1.1, decamelize@^1.1.2, decamelize@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/decamelize/-/decamelize-1.2.0.tgz#f6534d15148269b20352e7bee26f501f9a191290"
   integrity sha1-9lNNFRSCabIDUue+4m9QH5oZEpA=
@@ -2692,6 +2645,13 @@ decode-uri-component@^0.2.0:
   resolved "https://registry.yarnpkg.com/decode-uri-component/-/decode-uri-component-0.2.0.tgz#eb3913333458775cb84cd1a1fae062106bb87545"
   integrity sha1-6zkTMzRYd1y4TNGh+uBiEGu4dUU=
 
+decompress-response@^3.3.0:
+  version "3.3.0"
+  resolved "https://registry.yarnpkg.com/decompress-response/-/decompress-response-3.3.0.tgz#80a4dd323748384bfa248083622aedec982adff3"
+  integrity sha1-gKTdMjdIOEv6JICDYirt7Jgq3/M=
+  dependencies:
+    mimic-response "^1.0.0"
+
 dedent@0.6.0:
   version "0.6.0"
   resolved "https://registry.yarnpkg.com/dedent/-/dedent-0.6.0.tgz#0e6da8f0ce52838ef5cec5c8f9396b0c1b64a3cb"
@@ -2767,6 +2727,11 @@ delayed-stream@~1.0.0:
   resolved "https://registry.yarnpkg.com/delayed-stream/-/delayed-stream-1.0.0.tgz#df3ae199acadfb7d440aaae0b29e2272b24ec619"
   integrity sha1-3zrhmayt+31ECqrgsp4icrJOxhk=
 
+delegates@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/delegates/-/delegates-1.0.0.tgz#84c6e159b81904fdca59a0ef44cd870d31250f9a"
+  integrity sha1-hMbhWbgZBP3KWaDvRM2HDTElD5o=
+
 deps-sort@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/deps-sort/-/deps-sort-2.0.0.tgz#091724902e84658260eb910748cccd1af6e21fb5"
@@ -2804,6 +2769,11 @@ detect-indent@4.0.0, detect-indent@^4.0.0:
   dependencies:
     repeating "^2.0.0"
 
+detect-libc@^1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/detect-libc/-/detect-libc-1.0.3.tgz#fa137c4bd698edf55cd5cd02ac559f91a4c4ba9b"
+  integrity sha1-+hN8S9aY7fVc1c0CrFWfkaTEups=
+
 detect-newline@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/detect-newline/-/detect-newline-2.1.0.tgz#f41f1c10be4b00e87b5f13da680759f2c5bfd3e2"
@@ -3215,6 +3185,11 @@ expand-range@^1.8.1:
   dependencies:
     fill-range "^2.1.0"
 
+expand-template@^2.0.3:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/expand-template/-/expand-template-2.0.3.tgz#6e14b3fcee0f3a6340ecb57d2e8918692052a47c"
+  integrity sha512-XYfuKMvj4O35f/pOXLObndIRvyQ+/+6AhODh+OKWj9S9498pHHn/IMszH+gt0fBCRWMNfk1ZSp5x3AifmnI2vg==
+
 expand-tilde@^1.2.2:
   version "1.2.2"
   resolved "https://registry.yarnpkg.com/expand-tilde/-/expand-tilde-1.2.2.tgz#0b81eba897e5a3d31d1c3d102f8f01441e559449"
@@ -3540,12 +3515,12 @@ follow-redirects@1.0.0:
   dependencies:
     debug "^2.2.0"
 
-follow-redirects@^1.2.3:
-  version "1.2.4"
-  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.2.4.tgz#355e8f4d16876b43f577b0d5ce2668b9723214ea"
-  integrity sha512-Suw6KewLV2hReSyEOeql+UUkBVyiBm3ok1VPrVFRZnQInWpdoZbbiG5i8aJVSjTr0yQ4Ava0Sh6/joCg1Brdqw==
+follow-redirects@^1.3.0:
+  version "1.7.0"
+  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.7.0.tgz#489ebc198dc0e7f64167bd23b03c4c19b5784c76"
+  integrity sha512-m/pZQy4Gj287eNy94nivy5wchN3Kp+Q5WgUPNy5lJSZ3sgkVKSYV/ZChMAQVIgx1SqfZ2zBZtPA2YlXIWxxJOQ==
   dependencies:
-    debug "^2.4.5"
+    debug "^3.2.6"
 
 for-in@^0.1.5:
   version "0.1.6"
@@ -3631,7 +3606,7 @@ fs.realpath@^1.0.0:
   resolved "https://registry.yarnpkg.com/fs.realpath/-/fs.realpath-1.0.0.tgz#1504ad2523158caa40db4a2787cb01411994ea4f"
   integrity sha1-FQStJSMVjKpA20onh8sBQRmU6k8=
 
-function-bind@^1.0.2, function-bind@^1.1.1:
+function-bind@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/function-bind/-/function-bind-1.1.1.tgz#a56899d3ea3c9bab874bb9773b7c5ede92f4895d"
   integrity sha512-yIovAzMX49sF8Yl58fSCWJ5svSLuaibPxXQJFLmBObTuCr0Mf1KiPopGM9NiFjiYBCbfaa2Fh6breQ6ANVTI0A==
@@ -3641,6 +3616,20 @@ functional-red-black-tree@^1.0.1:
   resolved "https://registry.yarnpkg.com/functional-red-black-tree/-/functional-red-black-tree-1.0.1.tgz#1b0ab3bd553b2a0d6399d29c0e3ea0b252078327"
   integrity sha1-GwqzvVU7Kg1jmdKcDj6gslIHgyc=
 
+gauge@~2.7.3:
+  version "2.7.4"
+  resolved "https://registry.yarnpkg.com/gauge/-/gauge-2.7.4.tgz#2c03405c7538c39d7eb37b317022e325fb018bf7"
+  integrity sha1-LANAXHU4w51+s3sxcCLjJfsBi/c=
+  dependencies:
+    aproba "^1.0.3"
+    console-control-strings "^1.0.0"
+    has-unicode "^2.0.0"
+    object-assign "^4.1.0"
+    signal-exit "^3.0.0"
+    string-width "^1.0.1"
+    strip-ansi "^3.0.1"
+    wide-align "^1.1.0"
+
 get-assigned-identifiers@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/get-assigned-identifiers/-/get-assigned-identifiers-1.2.0.tgz#6dbf411de648cbaf8d9169ebb0d2d576191e2ff1"
@@ -3746,6 +3735,11 @@ github-build@^1.2.0:
   dependencies:
     axios "0.15.3"
 
+github-from-package@0.0.0:
+  version "0.0.0"
+  resolved "https://registry.yarnpkg.com/github-from-package/-/github-from-package-0.0.0.tgz#97fb5d96bfde8973313f20e8288ef9a167fa64ce"
+  integrity sha1-l/tdlr/eiXMxPyDoKI75oWf6ZM4=
+
 glob-base@^0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/glob-base/-/glob-base-0.3.0.tgz#dbb164f6221b1c0b1ccf82aea328b497df0ea3c4"
@@ -3774,7 +3768,7 @@ glob-to-regexp@^0.3.0:
   resolved "https://registry.yarnpkg.com/glob-to-regexp/-/glob-to-regexp-0.3.0.tgz#8c5a1494d2066c570cc3bfe4496175acc4d502ab"
   integrity sha1-jFoUlNIGbFcMw7/kSWF1rMTVAqs=
 
-glob@7.1.1, glob@^7.0.5:
+glob@7.1.1:
   version "7.1.1"
   resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.1.tgz#805211df04faaf1c63a3600306cdf5ade50b2ec8"
   integrity sha1-gFIR3wT6rxxjo2ADBs31reULLsg=
@@ -3786,22 +3780,10 @@ glob@7.1.1, glob@^7.0.5:
     once "^1.3.0"
     path-is-absolute "^1.0.0"
 
-glob@^7.0.0, glob@^7.0.3, glob@^7.1.1, glob@^7.1.2:
-  version "7.1.2"
-  resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.2.tgz#c19c9df9a028702d678612384a6552404c636d15"
-  integrity sha512-MJTUg1kjuLeQCJ+ccE4Vpa6kKVXkPYJ2mOCQyUuKLcLQsdrMCpBPUi8qVE6+YuaJkozeA9NusTAw3hLr8Xe5EQ==
-  dependencies:
-    fs.realpath "^1.0.0"
-    inflight "^1.0.4"
-    inherits "2"
-    minimatch "^3.0.4"
-    once "^1.3.0"
-    path-is-absolute "^1.0.0"
-
-glob@^7.1.0, glob@^7.1.3:
-  version "7.1.3"
-  resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.3.tgz#3960832d3f1574108342dafd3a67b332c0969df1"
-  integrity sha512-vcfuiIxogLV4DlGBHIUOwI0IbrJ8HWPc4MU7HzviGeNho/UJDfi6B5p3sHeWIQ0KGIU0Jpxi5ZHxemQfLkkAwQ==
+glob@^7.0.0, glob@^7.0.3, glob@^7.0.5, glob@^7.1.0, glob@^7.1.1, glob@^7.1.2, glob@^7.1.3, glob@^7.1.4:
+  version "7.1.4"
+  resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.4.tgz#aa608a2f6c577ad357e1ae5a5c26d9a8d1969255"
+  integrity sha512-hkLPepehmnKk41pUGm3sYxoFs/umurYfYJCerbXEyFIWcAzvpipAgVkBqqT9RBKMGjnq6kMuyYwha6csxbiM1A==
   dependencies:
     fs.realpath "^1.0.0"
     inflight "^1.0.4"
@@ -3903,21 +3885,11 @@ got@^6.7.1:
     unzip-response "^2.0.1"
     url-parse-lax "^1.0.0"
 
-graceful-fs@^4.1.0, graceful-fs@^4.1.11, graceful-fs@^4.1.6:
-  version "4.1.11"
-  resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.1.11.tgz#0e8bdfe4d1ddb8854d64e04ea7c00e2a026e5658"
-  integrity sha1-Dovf5NHduIVNZOBOp8AOKgJuVlg=
-
-graceful-fs@^4.1.15, graceful-fs@^4.1.9:
+graceful-fs@^4.1.0, graceful-fs@^4.1.11, graceful-fs@^4.1.15, graceful-fs@^4.1.2, graceful-fs@^4.1.6, graceful-fs@^4.1.9:
   version "4.1.15"
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.1.15.tgz#ffb703e1066e8a0eeaa4c8b80ba9253eeefbfb00"
   integrity sha512-6uHUhOPEBgQ24HM+r6b/QwWfZq+yiFcipKFrOFiBEnWdy5sdzYoi+pJeQaPI5qOLRFqWmAXUPQNsielzdLoecA==
 
-graceful-fs@^4.1.2:
-  version "4.1.9"
-  resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.1.9.tgz#baacba37d19d11f9d146d3578bc99958c3787e29"
-  integrity sha1-uqy6N9GdEfnRRtNXi8mZWMN4fik=
-
 "graceful-readlink@>= 1.0.0":
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/graceful-readlink/-/graceful-readlink-1.0.1.tgz#4cafad76bc62f02fa039b2f94e9a3dd3a391a725"
@@ -3933,30 +3905,20 @@ growly@^1.3.0:
   resolved "https://registry.yarnpkg.com/growly/-/growly-1.3.0.tgz#f10748cbe76af964b7c96c93c6bcc28af120c081"
   integrity sha1-8QdIy+dq+WS3yWyTxrzCivEgwIE=
 
-gzip-size@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/gzip-size/-/gzip-size-3.0.0.tgz#546188e9bdc337f673772f81660464b389dce520"
-  integrity sha1-VGGI6b3DN/Zzdy+BZgRks4nc5SA=
+gzip-size@^4.0.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/gzip-size/-/gzip-size-4.1.0.tgz#8ae096257eabe7d69c45be2b67c448124ffb517c"
+  integrity sha1-iuCWJX6r59acRb4rZ8RIEk/7UXw=
   dependencies:
     duplexer "^0.1.1"
+    pify "^3.0.0"
 
-handlebars@^4.0.2:
-  version "4.0.11"
-  resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.0.11.tgz#630a35dfe0294bc281edae6ffc5d329fc7982dcc"
-  integrity sha1-Ywo13+ApS8KB7a5v/F0yn8eYLcw=
-  dependencies:
-    async "^1.4.0"
-    optimist "^0.6.1"
-    source-map "^0.4.4"
-  optionalDependencies:
-    uglify-js "^2.6"
-
-handlebars@^4.1.0:
-  version "4.1.0"
-  resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.1.0.tgz#0d6a6f34ff1f63cecec8423aa4169827bf787c3a"
-  integrity sha512-l2jRuU1NAWK6AW5qqcTATWQJvNPEwkM7NEKSiv/gqOsoSQbVoWyqVEY5GS+XPQ88zLNmqASRpzfdm8d79hJS+w==
+handlebars@^4.0.2, handlebars@^4.1.0:
+  version "4.1.2"
+  resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.1.2.tgz#b6b37c1ced0306b221e094fc7aca3ec23b131b67"
+  integrity sha512-nvfrjqvt9xQ8Z/w0ijewdD/vvWDTOweBUm96NTr66Wfvo1mJenBLwcYmPs3TIBP5ruzYGD7Hx/DaM9RmhroGPw==
   dependencies:
-    async "^2.5.0"
+    neo-async "^2.6.0"
     optimist "^0.6.1"
     source-map "^0.6.1"
   optionalDependencies:
@@ -3997,6 +3959,11 @@ has-flag@^3.0.0:
   resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-3.0.0.tgz#b5d454dc2199ae225699f3467e5a07f3b955bafd"
   integrity sha1-tdRU3CGZriJWmfNGfloH87lVuv0=
 
+has-unicode@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/has-unicode/-/has-unicode-2.0.1.tgz#e0e6fe6a28cf51138855e086d1691e771de2a8b9"
+  integrity sha1-4Ob+aijPUROIVeCG0Wkedx3iqLk=
+
 has-value@^0.3.1:
   version "0.3.1"
   resolved "https://registry.yarnpkg.com/has-value/-/has-value-0.3.1.tgz#7b1f58bada62ca827ec0a2078025654845995e1f"
@@ -4028,20 +3995,13 @@ has-values@^1.0.0:
     is-number "^3.0.0"
     kind-of "^4.0.0"
 
-has@^1.0.0:
+has@^1.0.0, has@^1.0.1:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/has/-/has-1.0.3.tgz#722d7cbfc1f6aa8241f16dd814e011e1f41e8796"
   integrity sha512-f2dvO0VU6Oej7RkWJGrehjbzMAjFp5/VKPp5tTpWIV4JHHZK1/BxbFRtf/siA2SWTe09caDmVtYYzWEIbBS4zw==
   dependencies:
     function-bind "^1.1.1"
 
-has@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/has/-/has-1.0.1.tgz#8461733f538b0837c9361e39a9ab9e9704dc2f28"
-  integrity sha1-hGFzP1OLCDfJNh45qauelwTcLyg=
-  dependencies:
-    function-bind "^1.0.2"
-
 hash-base@^3.0.0:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/hash-base/-/hash-base-3.0.4.tgz#5fc8686847ecd73499403319a6b0a3f3f6ae4918"
@@ -4175,16 +4135,22 @@ ignore-walk@^3.0.1:
   dependencies:
     minimatch "^3.0.4"
 
-ignore@^3.3.3:
-  version "3.3.5"
-  resolved "https://registry.yarnpkg.com/ignore/-/ignore-3.3.5.tgz#c4e715455f6073a8d7e5dae72d2fc9d71663dba6"
-  integrity sha512-JLH93mL8amZQhh/p6mfQgVBH3M6epNq3DfsXsTSuSrInVjwyYlFE1nv2AgfRCC8PoOhM0jwQ5v8s9LgbK7yGDw==
-
-ignore@^3.3.5:
+ignore@^3.3.3, ignore@^3.3.5:
   version "3.3.10"
   resolved "https://registry.yarnpkg.com/ignore/-/ignore-3.3.10.tgz#0a97fb876986e8081c631160f8f9f389157f0043"
   integrity sha512-Pgs951kaMm5GXP7MOvxERINe3gsaVjUWFm+UZPSq9xYriQAksyhg0csnS0KXSNRD5NmNdapXEpjxG49+AKh/ug==
 
+iltorb@^2.4.3:
+  version "2.4.3"
+  resolved "https://registry.yarnpkg.com/iltorb/-/iltorb-2.4.3.tgz#b489689d24c8a25a2cf170c515f97954edd45577"
+  integrity sha512-cr/kC07Cf9sW3TWH7yUxV2QkNjby4LMCsXGmxPCQs5x//QzTpF3GLPNY7L66G+DkNGaTRCgY+vYZ+dyAcuDOnQ==
+  dependencies:
+    detect-libc "^1.0.3"
+    nan "^2.13.2"
+    npmlog "^4.1.2"
+    prebuild-install "^5.3.0"
+    which-pm-runs "^1.0.0"
+
 image-ssim@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/image-ssim/-/image-ssim-0.2.0.tgz#83b42c7a2e6e4b85505477fe6917f5dbc56420e5"
@@ -4383,12 +4349,7 @@ is-arrayish@^0.2.1:
   resolved "https://registry.yarnpkg.com/is-arrayish/-/is-arrayish-0.2.1.tgz#77c99840527aa8ecb1a8ba697b80645a7a926a9d"
   integrity sha1-d8mYQFJ6qOyxqLppe4BkWnqSap0=
 
-is-buffer@^1.0.2, is-buffer@^1.1.5:
-  version "1.1.5"
-  resolved "https://registry.yarnpkg.com/is-buffer/-/is-buffer-1.1.5.tgz#1f3b26ef613b214b88cbca23cc6c01d87961eecc"
-  integrity sha1-Hzsm72E7IUuIy8ojzGwB2Hlh7sw=
-
-is-buffer@^1.1.0:
+is-buffer@^1.0.2, is-buffer@^1.1.0, is-buffer@^1.1.5:
   version "1.1.6"
   resolved "https://registry.yarnpkg.com/is-buffer/-/is-buffer-1.1.6.tgz#efaa2ea9daa0d7ab2ea13a97b2b8ad51fefbe8be"
   integrity sha512-NcdALwpXkTm5Zvvbk7owOUSvVvBKDgKP5/ewfXEznmQFfs4ZRmanOeKBTjRVjka3QFoN6XJ+9F3USqfHqTaU5w==
@@ -4711,11 +4672,6 @@ isarray@^2.0.4:
   resolved "https://registry.yarnpkg.com/isarray/-/isarray-2.0.4.tgz#38e7bcbb0f3ba1b7933c86ba1894ddfc3781bbb7"
   integrity sha512-GMxXOiUirWg1xTKRipM0Ek07rX+ubx4nNVElTJdNLYmNO/2YrDkgJGw9CljXn+r4EWiDQg/8lsRdHyg2PJuUaA==
 
-isexe@^1.1.1:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/isexe/-/isexe-1.1.2.tgz#36f3e22e60750920f5e7241a476a8c6a42275ad0"
-  integrity sha1-NvPiLmB1CSD15yQaR2qMakInWtA=
-
 isexe@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/isexe/-/isexe-2.0.0.tgz#e8fbf374dc556ff8947a10dcb0572d633f2cfa10"
@@ -5446,11 +5402,6 @@ latest-version@^3.0.0:
   dependencies:
     package-json "^4.0.0"
 
-lazy-cache@^1.0.3:
-  version "1.0.4"
-  resolved "https://registry.yarnpkg.com/lazy-cache/-/lazy-cache-1.0.4.tgz#a1d78fc3a50474cb80845d3b3b6e1da49a446e8e"
-  integrity sha1-odePw6UEdMuAhF07O24dpJpEbo4=
-
 lazystream@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/lazystream/-/lazystream-1.0.0.tgz#f6995fe0f820392f61396be89462407bb77168e4"
@@ -5495,14 +5446,7 @@ levn@^0.3.0, levn@~0.3.0:
     prelude-ls "~1.1.2"
     type-check "~0.3.2"
 
-lighthouse-logger@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/lighthouse-logger/-/lighthouse-logger-1.0.0.tgz#c6abdfbbbf0b4a541ab33864802cbad8944bcc8c"
-  integrity sha1-xqvfu78LSlQaszhkgCy62JRLzIw=
-  dependencies:
-    debug "^2.6.8"
-
-lighthouse-logger@^1.2.0:
+lighthouse-logger@^1.0.0, lighthouse-logger@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/lighthouse-logger/-/lighthouse-logger-1.2.0.tgz#b76d56935e9c137e86a04741f6bb9b2776e886ca"
   integrity sha512-wzUvdIeJZhRsG6gpZfmSCfysaxNEr43i+QT+Hie94wvHDKFLi4n7C2GqZ4sTC+PH5b5iktmXJvU87rWvhP3lHw==
@@ -5521,16 +5465,6 @@ load-json-file@^1.0.0:
     pinkie-promise "^2.0.0"
     strip-bom "^2.0.0"
 
-load-json-file@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/load-json-file/-/load-json-file-2.0.0.tgz#7947e42149af80d696cbf797bcaabcfe1fe29ca8"
-  integrity sha1-eUfkIUmvgNaWy/eXvKq8/h/inKg=
-  dependencies:
-    graceful-fs "^4.1.2"
-    parse-json "^2.2.0"
-    pify "^2.0.0"
-    strip-bom "^3.0.0"
-
 load-json-file@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/load-json-file/-/load-json-file-4.0.0.tgz#2f5f45ab91e33216234fd53adab668eb4ec0993b"
@@ -5915,6 +5849,11 @@ mimic-fn@^1.0.0:
   resolved "https://registry.yarnpkg.com/mimic-fn/-/mimic-fn-1.1.0.tgz#e667783d92e89dbd342818b5230b9d62a672ad18"
   integrity sha1-5md4PZLonb00KBi1IwudYqZyrRg=
 
+mimic-response@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/mimic-response/-/mimic-response-1.0.1.tgz#4923538878eef42063cb8a3e3b0798781487ab1b"
+  integrity sha512-j5EctnkH7amfV/q5Hgmoal1g2QHFJRraOtmx0JpIqkxhBhI/lJSl1nMpQ45hVarwNETOoWEimndZ4QK0RHxuxQ==
+
 minimalistic-assert@^1.0.0, minimalistic-assert@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/minimalistic-assert/-/minimalistic-assert-1.0.1.tgz#2e194de044626d4a10e7f7fbc00ce73e83e4d5c7"
@@ -6003,6 +5942,11 @@ mute-stream@0.0.7:
   resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.7.tgz#3075ce93bc21b8fab43e1bc4da7e8115ed1e7bab"
   integrity sha1-MHXOk7whuPq0PhvE2n6BFe0ee6s=
 
+nan@^2.13.2:
+  version "2.14.0"
+  resolved "https://registry.yarnpkg.com/nan/-/nan-2.14.0.tgz#7818f722027b2459a86f0295d434d1fc2336c52c"
+  integrity sha512-INOFj37C7k3AfaNTtX8RhsTw7qRy7eLET14cROi9+5HAVbbHuIWUHEauBv5qT4Av2tWasiTY1Jw6puUNqRJXQg==
+
 nanomatch@^1.2.9:
   version "1.2.9"
   resolved "https://registry.yarnpkg.com/nanomatch/-/nanomatch-1.2.9.tgz#879f7150cb2dab7a471259066c104eee6e0fa7c2"
@@ -6021,11 +5965,21 @@ nanomatch@^1.2.9:
     snapdragon "^0.8.1"
     to-regex "^3.0.1"
 
+napi-build-utils@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/napi-build-utils/-/napi-build-utils-1.0.1.tgz#1381a0f92c39d66bf19852e7873432fc2123e508"
+  integrity sha512-boQj1WFgQH3v4clhu3mTNfP+vOBxorDlE8EKiMjUlLG3C4qAESnn9AxIOkFgTR2c9LtzNjPrjS60cT27ZKBhaA==
+
 natural-compare@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/natural-compare/-/natural-compare-1.4.0.tgz#4abebfeed7541f2c27acfb29bdbbd15c8d5ba4f7"
   integrity sha1-Sr6/7tdUHywnrPspvbvRXI1bpPc=
 
+neo-async@^2.6.0:
+  version "2.6.1"
+  resolved "https://registry.yarnpkg.com/neo-async/-/neo-async-2.6.1.tgz#ac27ada66167fa8849a6addd837f6b189ad2081c"
+  integrity sha512-iyam8fBuCUpWeKPGpaNMetEocMt364qkCsfL9JuhjXX6dRnguRVOfk2GZaDpPjcOKiiXCPINZC1GczQ7iTq3Zw==
+
 nested-error-stacks@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/nested-error-stacks/-/nested-error-stacks-2.1.0.tgz#0fbdcf3e13fe4994781280524f8b96b0cdff9c61"
@@ -6036,6 +5990,13 @@ nice-try@^1.0.4:
   resolved "https://registry.yarnpkg.com/nice-try/-/nice-try-1.0.5.tgz#a3378a7696ce7d223e88fc9b764bd7ef1089e366"
   integrity sha512-1nh45deeb5olNY7eX82BkPO7SSxR5SSYJiPTrTdFUVYwAl8CKMA5N9PjTYkHiRjisVcxcQ1HXdLhx2qxxJzLNQ==
 
+node-abi@^2.7.0:
+  version "2.8.0"
+  resolved "https://registry.yarnpkg.com/node-abi/-/node-abi-2.8.0.tgz#bd2e88dbe6a6871e6dd08553e0605779325737ec"
+  integrity sha512-1/aa2clS0pue0HjckL62CsbhWWU35HARvBDXcJtYKbYR7LnIutmpxmXbuDMV9kEviD2lP/wACOgWmmwljghHyQ==
+  dependencies:
+    semver "^5.4.1"
+
 node-fetch@1.6.3:
   version "1.6.3"
   resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-1.6.3.tgz#dc234edd6489982d58e8f0db4f695029abcd8c04"
@@ -6090,6 +6051,11 @@ node-notifier@^5.2.1:
     chalk "~0.4.0"
     underscore "~1.6.0"
 
+noop-logger@^0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/noop-logger/-/noop-logger-0.1.1.tgz#94a2b1633c4f1317553007d8966fd0e841b6a4c2"
+  integrity sha1-lKKxYzxPExdVMAfYlm/Q6EG2pMI=
+
 normalize-package-data@^2.3.0, normalize-package-data@^2.3.5:
   version "2.4.0"
   resolved "https://registry.yarnpkg.com/normalize-package-data/-/normalize-package-data-2.4.0.tgz#12f95a307d58352075a04907b84ac8be98ac012f"
@@ -6149,6 +6115,16 @@ npm-run-posix-or-windows@^2.0.2:
   resolved "https://registry.yarnpkg.com/npm-run-posix-or-windows/-/npm-run-posix-or-windows-2.0.2.tgz#74e894702ae34ea338502d04b500c1dec836736e"
   integrity sha1-dOiUcCrjTqM4UC0EtQDB3sg2c24=
 
+npmlog@^4.0.1, npmlog@^4.1.2:
+  version "4.1.2"
+  resolved "https://registry.yarnpkg.com/npmlog/-/npmlog-4.1.2.tgz#08a7f2a8bf734604779a9efa4ad5cc717abb954b"
+  integrity sha512-2uUqazuKlTaSI/dC8AzicUck7+IrEaOnN/e0jd3Xtt1KcGpwx30v50mL7oPyr/h9bL3E4aZccVwpwP+5W9Vjkg==
+  dependencies:
+    are-we-there-yet "~1.1.2"
+    console-control-strings "~1.1.0"
+    gauge "~2.7.3"
+    set-blocking "~2.0.0"
+
 number-is-nan@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/number-is-nan/-/number-is-nan-1.0.1.tgz#097b602b53422a522c1afb8790318336941a011d"
@@ -6585,13 +6561,6 @@ path-type@^1.0.0:
     pify "^2.0.0"
     pinkie-promise "^2.0.0"
 
-path-type@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/path-type/-/path-type-2.0.0.tgz#f012ccb8415b7096fc2daa1054c3d72389594c73"
-  integrity sha1-8BLMuEFbcJb8LaoQVMPXI4lZTHM=
-  dependencies:
-    pify "^2.0.0"
-
 path-type@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/path-type/-/path-type-3.0.0.tgz#cef31dc8e0a1a3bb0d105c0cd97cf3bf47f4e36f"
@@ -6681,6 +6650,28 @@ posix-character-classes@^0.1.0:
   resolved "https://registry.yarnpkg.com/posix-character-classes/-/posix-character-classes-0.1.1.tgz#01eac0fe3b5af71a2a6c02feabb8c1fef7e00eab"
   integrity sha1-AerA/jta9xoqbAL+q7jB/vfgDqs=
 
+prebuild-install@^5.3.0:
+  version "5.3.0"
+  resolved "https://registry.yarnpkg.com/prebuild-install/-/prebuild-install-5.3.0.tgz#58b4d8344e03590990931ee088dd5401b03004c8"
+  integrity sha512-aaLVANlj4HgZweKttFNUVNRxDukytuIuxeK2boIMHjagNJCiVKWFsKF4tCE3ql3GbrD2tExPQ7/pwtEJcHNZeg==
+  dependencies:
+    detect-libc "^1.0.3"
+    expand-template "^2.0.3"
+    github-from-package "0.0.0"
+    minimist "^1.2.0"
+    mkdirp "^0.5.1"
+    napi-build-utils "^1.0.1"
+    node-abi "^2.7.0"
+    noop-logger "^0.1.1"
+    npmlog "^4.0.1"
+    os-homedir "^1.0.1"
+    pump "^2.0.1"
+    rc "^1.2.7"
+    simple-get "^2.7.0"
+    tar-fs "^1.13.0"
+    tunnel-agent "^0.6.0"
+    which-pm-runs "^1.0.0"
+
 prelude-ls@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"
@@ -6787,6 +6778,22 @@ public-encrypt@^4.0.0:
     randombytes "^2.0.1"
     safe-buffer "^5.1.2"
 
+pump@^1.0.0:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/pump/-/pump-1.0.3.tgz#5dfe8311c33bbf6fc18261f9f34702c47c08a954"
+  integrity sha512-8k0JupWme55+9tCVE+FS5ULT3K6AbgqrGa58lTT49RpyfwwcGedHqaC5LlQNdEAumn/wFsu6aPwkuPMioy8kqw==
+  dependencies:
+    end-of-stream "^1.1.0"
+    once "^1.3.1"
+
+pump@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/pump/-/pump-2.0.1.tgz#12399add6e4cf7526d973cbc8b5ce2e2908b3909"
+  integrity sha512-ruPMNRkN3MHP1cWJc9OWr+T/xDP0jhXYCLfJcBuX54hhfIBnaQmAUMfDcG4DM5UMWByBbJY69QSphm3jtDKIkA==
+  dependencies:
+    end-of-stream "^1.1.0"
+    once "^1.3.1"
+
 pump@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/pump/-/pump-3.0.0.tgz#b4a2116815bde2f4e1ea602354e8c75565107a64"
@@ -6896,7 +6903,7 @@ raven@^2.2.1:
     timed-out "4.0.1"
     uuid "3.0.0"
 
-rc@^1.0.1, rc@^1.1.6:
+rc@^1.0.1, rc@^1.1.6, rc@^1.2.7:
   version "1.2.8"
   resolved "https://registry.yarnpkg.com/rc/-/rc-1.2.8.tgz#cd924bf5200a075b83c188cd6b9e211b7fc0d3ed"
   integrity sha512-y3bGgqKj3QBdxLbLkomlohkvsA8gdAiUQlSBJnBhfn+BPxg4bc62d8TcBW15wavDfgexCgccckhcZvywyQYPOw==
@@ -6929,13 +6936,13 @@ read-pkg-up@^1.0.1:
     find-up "^1.0.0"
     read-pkg "^1.0.0"
 
-read-pkg-up@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/read-pkg-up/-/read-pkg-up-2.0.0.tgz#6b72a8048984e0c41e79510fd5e9fa99b3b549be"
-  integrity sha1-a3KoBImE4MQeeVEP1en6mbO1Sb4=
+read-pkg-up@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/read-pkg-up/-/read-pkg-up-3.0.0.tgz#3ed496685dba0f8fe118d0691dc51f4a1ff96f07"
+  integrity sha1-PtSWaF26D4/hGNBpHcUfSh/5bwc=
   dependencies:
     find-up "^2.0.0"
-    read-pkg "^2.0.0"
+    read-pkg "^3.0.0"
 
 read-pkg-up@^4.0.0:
   version "4.0.0"
@@ -6954,15 +6961,6 @@ read-pkg@^1.0.0, read-pkg@^1.1.0:
     normalize-package-data "^2.3.2"
     path-type "^1.0.0"
 
-read-pkg@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/read-pkg/-/read-pkg-2.0.0.tgz#8ef1c0623c6a6db0dc6713c4bfac46332b2368f8"
-  integrity sha1-jvHAYjxqbbDcZxPEv6xGMysjaPg=
-  dependencies:
-    load-json-file "^2.0.0"
-    normalize-package-data "^2.3.2"
-    path-type "^2.0.0"
-
 read-pkg@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/read-pkg/-/read-pkg-3.0.0.tgz#9cbc686978fee65d16c00e2b19c237fcf6e38389"
@@ -6972,7 +6970,7 @@ read-pkg@^3.0.0:
     normalize-package-data "^2.3.2"
     path-type "^3.0.0"
 
-readable-stream@^2.0.0, readable-stream@^2.0.5, readable-stream@^2.3.0, readable-stream@^2.3.5, readable-stream@^2.3.6, readable-stream@~2.3.3:
+readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.5, readable-stream@^2.0.6, readable-stream@^2.1.5, readable-stream@^2.2.2, readable-stream@^2.3.0, readable-stream@^2.3.5, readable-stream@^2.3.6, readable-stream@~2.3.3:
   version "2.3.6"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.6.tgz#b11c27d88b8ff1fbe070643cf94b0c79ae1b0aaf"
   integrity sha512-tQtKA9WIAhBF3+VLAseyMqZeBjW0AHJoxOtYqSUZNJxauErmLbVm2FW1y+J/YA9dUrAC39ITejlZWhVIwawkKw==
@@ -6985,32 +6983,6 @@ readable-stream@^2.0.0, readable-stream@^2.0.5, readable-stream@^2.3.0, readable
     string_decoder "~1.1.1"
     util-deprecate "~1.0.1"
 
-readable-stream@^2.0.1:
-  version "2.1.5"
-  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.1.5.tgz#66fa8b720e1438b364681f2ad1a63c618448c9d0"
-  integrity sha1-ZvqLcg4UOLNkaB8q0aY8YYRIydA=
-  dependencies:
-    buffer-shims "^1.0.0"
-    core-util-is "~1.0.0"
-    inherits "~2.0.1"
-    isarray "~1.0.0"
-    process-nextick-args "~1.0.6"
-    string_decoder "~0.10.x"
-    util-deprecate "~1.0.1"
-
-readable-stream@^2.0.2, readable-stream@^2.1.5, readable-stream@^2.2.2:
-  version "2.3.3"
-  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.3.tgz#368f2512d79f9d46fdfc71349ae7878bbc1eb95c"
-  integrity sha512-m+qzzcn7KUxEmd1gMbchF+Y2eIUbieUaxkWtptyHywrX0rE8QEYqPC07Vuy4Wm32/xE16NcdBctb8S0Xe/5IeQ==
-  dependencies:
-    core-util-is "~1.0.0"
-    inherits "~2.0.3"
-    isarray "~1.0.0"
-    process-nextick-args "~1.0.6"
-    safe-buffer "~5.1.1"
-    string_decoder "~1.0.3"
-    util-deprecate "~1.0.1"
-
 readable-stream@~2.0.0:
   version "2.0.6"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.0.6.tgz#8f90341e68a53ccc928788dacfcd11b36eb9b78e"
@@ -7260,13 +7232,6 @@ ret@~0.1.10:
   resolved "https://registry.yarnpkg.com/ret/-/ret-0.1.15.tgz#b8a4825d5bdb1fc3f6f53c2bc33f81388681c7bc"
   integrity sha512-TTlYpa+OL+vMMNG24xSlQGEJ3B/RzEfUlLct7b5G/ytav+wPrplCpVMFuwzXbkecJrb6IYo1iFb0S9v37754mg==
 
-right-align@^0.1.1:
-  version "0.1.3"
-  resolved "https://registry.yarnpkg.com/right-align/-/right-align-0.1.3.tgz#61339b722fe6a3515689210d24e14c96148613ef"
-  integrity sha1-YTObci/mo1FWiSENJOFMlhSGE+8=
-  dependencies:
-    align-text "^0.1.1"
-
 right-pad@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/right-pad/-/right-pad-1.0.1.tgz#8ca08c2cbb5b55e74dafa96bf7fd1a27d568c8d0"
@@ -7421,7 +7386,7 @@ semver@^5.5.0:
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.5.1.tgz#7dfdd8814bdb7cabc7be0fb1d734cfb66c940477"
   integrity sha512-PqpAxfrEhlSUWge8dwIp4tZnQ25DIOthpiaHNIthsjEFQD6EvqUKUDM7L8O2rShkFccYo1VjJR0coWfNkCubRw==
 
-set-blocking@^2.0.0:
+set-blocking@^2.0.0, set-blocking@~2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/set-blocking/-/set-blocking-2.0.0.tgz#045f9782d011ae9a6803ddd382b24392b3d890f7"
   integrity sha1-BF+XgtARrppoA93TgrJDkrPYkPc=
@@ -7518,6 +7483,15 @@ simple-concat@^1.0.0:
   resolved "https://registry.yarnpkg.com/simple-concat/-/simple-concat-1.0.0.tgz#7344cbb8b6e26fb27d66b2fc86f9f6d5997521c6"
   integrity sha1-c0TLuLbib7J9ZrL8hvn21Zl1IcY=
 
+simple-get@^2.7.0:
+  version "2.8.1"
+  resolved "https://registry.yarnpkg.com/simple-get/-/simple-get-2.8.1.tgz#0e22e91d4575d87620620bc91308d57a77f44b5d"
+  integrity sha512-lSSHRSw3mQNUGPAYRqo7xy9dhKmxFXIjLjp4KHpf99GEH2VH7C3AM+Qfx6du6jhfUi6Vm7XnbEVEf7Wb6N8jRw==
+  dependencies:
+    decompress-response "^3.3.0"
+    once "^1.3.1"
+    simple-concat "^1.0.0"
+
 sisteransi@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/sisteransi/-/sisteransi-1.0.0.tgz#77d9622ff909080f1c19e5f4a1df0c1b0a27b88c"
@@ -7608,13 +7582,6 @@ source-map-url@^0.4.0:
   resolved "https://registry.yarnpkg.com/source-map-url/-/source-map-url-0.4.0.tgz#3e935d7ddd73631b97659956d55128e87b5084a3"
   integrity sha1-PpNdfd1zYxuXZZlW1VEo6HtQhKM=
 
-source-map@^0.4.4:
-  version "0.4.4"
-  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.4.4.tgz#eba4f5da9c0dc999de68032d8b4f76173652036b"
-  integrity sha1-66T12pwNyZneaAMti092FzZSA2s=
-  dependencies:
-    amdefine ">=0.0.4"
-
 source-map@^0.5.0, source-map@^0.5.6, source-map@^0.5.7, source-map@~0.5.3:
   version "0.5.7"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.7.tgz#8a039d2d1021d22d1ea14c80d8ea468ba2ef3fcc"
@@ -7829,15 +7796,7 @@ string-width@^1.0.1:
     is-fullwidth-code-point "^1.0.0"
     strip-ansi "^3.0.0"
 
-string-width@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/string-width/-/string-width-2.0.0.tgz#635c5436cc72a6e0c387ceca278d4e2eec52687e"
-  integrity sha1-Y1xUNsxypuDDh87KJ41OLuxSaH4=
-  dependencies:
-    is-fullwidth-code-point "^2.0.0"
-    strip-ansi "^3.0.0"
-
-string-width@^2.1.0, string-width@^2.1.1:
+"string-width@^1.0.2 || 2", string-width@^2.0.0, string-width@^2.1.0, string-width@^2.1.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/string-width/-/string-width-2.1.1.tgz#ab93f27a8dc13d28cac815c462143a6d9012ae9e"
   integrity sha512-nOqH59deCq9SRHlxq1Aw85Jnt4w6KvLKqWVik6oA9ZklXLNIOlqg4F2yrT1MVaTjAqvVwdfeZ7w7aCvJD7ugkw==
@@ -7857,13 +7816,6 @@ string_decoder@~0.10.x:
   resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-0.10.31.tgz#62e203bc41766c6c28c9fc84301dab1c5310fa94"
   integrity sha1-YuIDvEF2bGwoyfyEMB2rHFMQ+pQ=
 
-string_decoder@~1.0.3:
-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.0.3.tgz#0fc67d7c141825de94282dd536bec6b9bce860ab"
-  integrity sha512-4AH6Z5fzNNBcH+6XDMfA/BTt87skxqJlO0lAh3Dker5zThcAxG6mKz+iGu308UKoPPQ8Dcqx/4JhujzltRa+hQ==
-  dependencies:
-    safe-buffer "~5.1.0"
-
 string_decoder@~1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.1.1.tgz#9cf1611ba62685d7030ae9e4ba34149c3af03fc8"
@@ -8003,7 +7955,17 @@ table@4.0.2:
     slice-ansi "1.0.0"
     string-width "^2.1.1"
 
-tar-stream@^1.5.0:
+tar-fs@^1.13.0:
+  version "1.16.3"
+  resolved "https://registry.yarnpkg.com/tar-fs/-/tar-fs-1.16.3.tgz#966a628841da2c4010406a82167cbd5e0c72d509"
+  integrity sha512-NvCeXpYx7OsmOh8zIOP/ebG55zZmxLE0etfWRbWok+q2Qo8x/vOR/IJT1taADXPe+jsiu9axDb3X4B+iIgNlKw==
+  dependencies:
+    chownr "^1.0.1"
+    mkdirp "^0.5.1"
+    pump "^1.0.0"
+    tar-stream "^1.1.2"
+
+tar-stream@^1.1.2, tar-stream@^1.5.0:
   version "1.6.2"
   resolved "https://registry.yarnpkg.com/tar-stream/-/tar-stream-1.6.2.tgz#8ea55dab37972253d9a9af90fdcd559ae435c555"
   integrity sha512-rzS0heiNf8Xn7/mpdSVVSMAWAoy9bfb1WOTYC78Z0UQKeKa/CWS8FOq0lKGNa8DWKAn9gxjCvMLYc5PGXYlK2A==
@@ -8276,16 +8238,6 @@ uglify-es@3.0.15:
     commander "~2.9.0"
     source-map "~0.5.1"
 
-uglify-js@^2.6:
-  version "2.7.3"
-  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-2.7.3.tgz#39b3a7329b89f5ec507e344c6e22568698ef4868"
-  integrity sha1-ObOnMpuJ9exQfjRMbiJWhpjvSGg=
-  dependencies:
-    async "~0.2.6"
-    source-map "~0.5.1"
-    uglify-to-browserify "~1.0.0"
-    yargs "~3.10.0"
-
 uglify-js@^3.1.4:
   version "3.4.9"
   resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.4.9.tgz#af02f180c1207d76432e473ed24a28f4a782bae3"
@@ -8294,11 +8246,6 @@ uglify-js@^3.1.4:
     commander "~2.17.1"
     source-map "~0.6.1"
 
-uglify-to-browserify@~1.0.0:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/uglify-to-browserify/-/uglify-to-browserify-1.0.2.tgz#6e0924d6bda6b5afe349e39a6d632850a0f882b7"
-  integrity sha1-bgkk1r2mta/jSeOabWMoUKD4grc=
-
 ultron@~1.1.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/ultron/-/ultron-1.1.1.tgz#9fe1536a10a664a65266a1e3ccf85fd36302bc9c"
@@ -8568,26 +8515,24 @@ which-module@^2.0.0:
   resolved "https://registry.yarnpkg.com/which-module/-/which-module-2.0.0.tgz#d9ef07dce77b9902b8a3a8fa4b31c3e3f7e6e87a"
   integrity sha1-2e8H3Od7mQK4o6j6SzHD4/fm6Ho=
 
-which@^1.2.12:
+which-pm-runs@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/which-pm-runs/-/which-pm-runs-1.0.0.tgz#670b3afbc552e0b55df6b7780ca74615f23ad1cb"
+  integrity sha1-Zws6+8VS4LVd9rd4DKdGFfI60cs=
+
+which@^1.2.12, which@^1.2.9, which@^1.3.0:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/which/-/which-1.3.1.tgz#a45043d54f5805316da8d62f9f50918d3da70b0a"
   integrity sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==
   dependencies:
     isexe "^2.0.0"
 
-which@^1.2.9:
-  version "1.2.11"
-  resolved "https://registry.yarnpkg.com/which/-/which-1.2.11.tgz#c8b2eeea6b8c1659fa7c1dd4fdaabe9533dc5e8b"
-  integrity sha1-yLLu6muMFln6fB3U/aq+lTPcXos=
-  dependencies:
-    isexe "^1.1.1"
-
-which@^1.3.0:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/which/-/which-1.3.0.tgz#ff04bdfc010ee547d780bec38e1ac1c2777d253a"
-  integrity sha512-xcJpopdamTuY5duC/KnTTNBraPK54YwpenP4lzxU8H91GudWpFv38u0CKjclE1Wi2EH2EDz5LRcHcKbCIzqGyg==
+wide-align@^1.1.0:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/wide-align/-/wide-align-1.1.3.tgz#ae074e6bdc0c14a431e804e624549c633b000457"
+  integrity sha512-QGkOQc8XL6Bt5PwnsExKBPuMKBxnGxWWW3fU55Xt4feHozMUhdUMaBCk290qpm/wG5u/RSKzwdAC4i51YigihA==
   dependencies:
-    isexe "^2.0.0"
+    string-width "^1.0.2 || 2"
 
 widest-line@^2.0.0:
   version "2.0.1"
@@ -8596,11 +8541,6 @@ widest-line@^2.0.0:
   dependencies:
     string-width "^2.1.1"
 
-window-size@0.1.0:
-  version "0.1.0"
-  resolved "https://registry.yarnpkg.com/window-size/-/window-size-0.1.0.tgz#5438cd2ea93b202efa3a19fe8887aee7c94f9c9d"
-  integrity sha1-VDjNLqk7IC76Ohn+iIeu58lPnJ0=
-
 window-size@^0.1.4:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/window-size/-/window-size-0.1.4.tgz#f8e1aa1ee5a53ec5bf151ffa09742a6ad7697876"
@@ -8629,11 +8569,6 @@ word-wrap@^1.0.3:
   resolved "https://registry.yarnpkg.com/word-wrap/-/word-wrap-1.2.3.tgz#610636f6b1f703891bd34771ccb17fb93b47079c"
   integrity sha512-Hz/mrNwitNRh/HUAtM/VT/5VH+ygD6DV7mYKZAtHOrbs8U7lvPS6xf7EJKMF0uW1KJCl0H701g3ZGus+muE5vQ==
 
-wordwrap@0.0.2:
-  version "0.0.2"
-  resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-0.0.2.tgz#b79669bb42ecb409f83d583cad52ca17eaa1643f"
-  integrity sha1-t5Zpu0LstAn4PVg8rVLKF+qhZD8=
-
 wordwrap@~0.0.2:
   version "0.0.3"
   resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-0.0.3.tgz#a3d5da6cd5c0bc0008d37234bbaf1bed63059107"
@@ -8807,16 +8742,6 @@ yargs@^12.0.2, yargs@^12.0.5:
     y18n "^3.2.1 || ^4.0.0"
     yargs-parser "^11.1.1"
 
-yargs@~3.10.0:
-  version "3.10.0"
-  resolved "https://registry.yarnpkg.com/yargs/-/yargs-3.10.0.tgz#f7ee7bd857dd7c1d2d38c0e74efbd681d1431fd1"
-  integrity sha1-9+572FfdfB0tOMDnTvvWgdFDH9E=
-  dependencies:
-    camelcase "^1.0.2"
-    cliui "^2.1.0"
-    decamelize "^1.0.0"
-    window-size "0.1.0"
-
 yauzl@2.4.1:
   version "2.4.1"
   resolved "https://registry.yarnpkg.com/yauzl/-/yauzl-2.4.1.tgz#9528f442dab1b2284e58b4379bb194e22e0c4005"

From 450d36032124811125ffde513c13b85b0ee80883 Mon Sep 17 00:00:00 2001
From: Patrick Hulce <patrick.hulce@gmail.com>
Date: Fri, 31 May 2019 21:25:02 -0500
Subject: [PATCH 003/110] core(manifest-parser): handle blob manifests (#9088)

---
 lighthouse-core/lib/manifest-parser.js        | 53 +++++++---
 .../test/lib/manifest-parser-test.js          | 97 +++++++++++++------
 2 files changed, 107 insertions(+), 43 deletions(-)

diff --git a/lighthouse-core/lib/manifest-parser.js b/lighthouse-core/lib/manifest-parser.js
index 763910cfd4b0..64d4fd06b52d 100644
--- a/lighthouse-core/lib/manifest-parser.js
+++ b/lighthouse-core/lib/manifest-parser.js
@@ -16,7 +16,7 @@ const ALLOWED_DISPLAY_VALUES = [
 ];
 /**
  * All display-mode fallbacks, including when unset, lead to default display mode 'browser'.
- * @see https://w3c.github.io/manifest/#dfn-default-display-mode
+ * @see https://www.w3.org/TR/2016/WD-appmanifest-20160825/#dfn-default-display-mode
  */
 const DEFAULT_DISPLAY_MODE = 'browser';
 
@@ -111,7 +111,7 @@ function checkSameOrigin(url1, url2) {
 }
 
 /**
- * https://w3c.github.io/manifest/#start_url-member
+ * https://www.w3.org/TR/2016/WD-appmanifest-20160825/#start_url-member
  * @param {*} jsonInput
  * @param {string} manifestUrl
  * @param {string} documentUrl
@@ -151,7 +151,7 @@ function parseStartUrl(jsonInput, manifestUrl, documentUrl) {
     return {
       raw,
       value: documentUrl,
-      warning: 'ERROR: invalid start_url relative to ${manifestUrl}',
+      warning: `ERROR: invalid start_url relative to ${manifestUrl}`,
     };
   }
 
@@ -218,6 +218,7 @@ function parseOrientation(jsonInput) {
 }
 
 /**
+ * @see https://www.w3.org/TR/2016/WD-appmanifest-20160825/#src-member
  * @param {*} raw
  * @param {string} manifestUrl
  */
@@ -229,8 +230,14 @@ function parseIcon(raw, manifestUrl) {
     src.value = undefined;
   }
   if (src.value) {
-    // 9.4(4) - construct URL with manifest URL as the base
-    src.value = new URL(src.value, manifestUrl).href;
+    try {
+      // 9.4(4) - construct URL with manifest URL as the base
+      src.value = new URL(src.value, manifestUrl).href;
+    } catch (_) {
+      // 9.4 "This algorithm will return a URL or undefined."
+      src.warning = `ERROR: invalid icon url will be ignored: '${raw.src}'`;
+      src.value = undefined;
+    }
   }
 
   const type = parseString(raw.type, true);
@@ -301,20 +308,31 @@ function parseIcons(jsonInput, manifestUrl) {
     };
   }
 
-  // TODO(bckenny): spec says to skip icons missing `src`, so debug messages on
-  // individual icons are lost. Warn instead?
-  const value = raw
+  const parsedIcons = raw
     // 9.6(3)(1)
     .filter(icon => icon.src !== undefined)
     // 9.6(3)(2)(1)
-    .map(icon => parseIcon(icon, manifestUrl))
+    .map(icon => parseIcon(icon, manifestUrl));
+
+  // NOTE: we still lose the specific message on these icons, but it's not possible to surface them
+  // without a massive change to the structure and paradigms of `manifest-parser`.
+  const ignoredIconsWithWarnings = parsedIcons
+    .filter(icon => {
+      const possibleWarnings = [icon.warning, icon.value.type.warning, icon.value.src.warning,
+        icon.value.sizes.warning, icon.value.density.warning].filter(Boolean);
+      const hasSrc = !!icon.value.src.value;
+      return !!possibleWarnings.length && !hasSrc;
+    });
+
+  const value = parsedIcons
     // 9.6(3)(2)(2)
     .filter(parsedIcon => parsedIcon.value.src.value !== undefined);
 
   return {
     raw,
     value,
-    warning: undefined,
+    warning: ignoredIconsWithWarnings.length ?
+      'WARNING: Some icons were ignored due to warnings.' : undefined,
   };
 }
 
@@ -333,7 +351,7 @@ function parseApplication(raw) {
       appUrl.value = new URL(appUrl.value).href;
     } catch (e) {
       appUrl.value = undefined;
-      appUrl.warning = 'ERROR: invalid application URL ${raw.url}';
+      appUrl.warning = `ERROR: invalid application URL ${raw.url}`;
     }
   }
 
@@ -460,10 +478,21 @@ function parse(string, manifestUrl, documentUrl) {
   };
   /* eslint-enable camelcase */
 
+  /** @type {string|undefined} */
+  let manifestUrlWarning;
+  try {
+    const manifestUrlParsed = new URL(manifestUrl);
+    if (!manifestUrlParsed.protocol.startsWith('http')) {
+      manifestUrlWarning = `WARNING: manifest URL not available over a valid network protocol`;
+    }
+  } catch (_) {
+    manifestUrlWarning = `ERROR: invalid manifest URL: '${manifestUrl}'`;
+  }
+
   return {
     raw: string,
     value: manifest,
-    warning: undefined,
+    warning: manifestUrlWarning,
   };
 }
 
diff --git a/lighthouse-core/test/lib/manifest-parser-test.js b/lighthouse-core/test/lib/manifest-parser-test.js
index 9f4fa38e405b..9a93de8a1940 100644
--- a/lighthouse-core/test/lib/manifest-parser-test.js
+++ b/lighthouse-core/test/lib/manifest-parser-test.js
@@ -11,6 +11,7 @@ const manifestStub = require('../fixtures/manifest.json');
 
 const EXAMPLE_MANIFEST_URL = 'https://example.com/manifest.json';
 const EXAMPLE_DOC_URL = 'https://example.com/index.html';
+const EXAMPLE_MANIFEST_BLOB_URL = 'blob:https://example.com/manifest.json';
 
 /**
  * Simple manifest parsing helper when the manifest URLs aren't material to the
@@ -27,32 +28,48 @@ function noUrlManifestParser(manifestSrc) {
 describe('Manifest Parser', function() {
   it('should not parse empty string input', function() {
     const parsedManifest = noUrlManifestParser('');
-    assert.ok(parsedManifest.warning);
+    expect(parsedManifest.warning)
+      .toEqual('ERROR: file isn\'t valid JSON: SyntaxError: Unexpected end of JSON input');
   });
 
   it('accepts empty dictionary', function() {
     const parsedManifest = noUrlManifestParser('{}');
-    assert(!parsedManifest.warning);
-    assert.equal(parsedManifest.value.name.value, undefined);
-    assert.equal(parsedManifest.value.short_name.value, undefined);
-    assert.equal(parsedManifest.value.start_url.value, EXAMPLE_DOC_URL);
-    assert.equal(parsedManifest.value.display.value, 'browser');
-    assert.equal(parsedManifest.value.orientation.value, undefined);
-    assert.equal(parsedManifest.value.theme_color.value, undefined);
-    assert.equal(parsedManifest.value.background_color.value, undefined);
-    assert.ok(Array.isArray(parsedManifest.value.icons.value));
-    assert.ok(parsedManifest.value.icons.value.length === 0);
+    expect(parsedManifest.warning).toBeUndefined();
+    expect(parsedManifest.value.name.value).toBe(undefined);
+    expect(parsedManifest.value.short_name.value).toBe(undefined);
+    expect(parsedManifest.value.start_url.value).toBe(EXAMPLE_DOC_URL);
+    expect(parsedManifest.value.display.value).toBe('browser');
+    expect(parsedManifest.value.orientation.value).toBe(undefined);
+    expect(parsedManifest.value.theme_color.value).toBe(undefined);
+    expect(parsedManifest.value.background_color.value).toBe(undefined);
+    expect(parsedManifest.value.icons.value).toHaveLength(0);
     // TODO:
     // related_applications
     // prefer_related_applications
   });
 
+  it('should warn on invalid manifest parser URL', function() {
+    const parsedManifest = manifestParser('{}', 'not a URL', EXAMPLE_DOC_URL);
+    expect(parsedManifest.warning)
+      .toEqual('ERROR: invalid manifest URL: \'not a URL\'');
+  });
+
+  it('should warn on valid but non-(HTTP|HTTPS) manifest parser URL', function() {
+    const parsedManifest = manifestParser('{}', EXAMPLE_MANIFEST_BLOB_URL, EXAMPLE_DOC_URL);
+    expect(parsedManifest.warning)
+      .toEqual('WARNING: manifest URL not available over a valid network protocol');
+  });
+
   describe('icon parsing', function() {
     // 9.7
     it('gives an empty array and an error for erroneous icons entry', () => {
-      const parsedManifest = manifestParser('{"icons": {"16": "img/icons/icon16.png"}}',
-          EXAMPLE_MANIFEST_URL, EXAMPLE_DOC_URL);
-      assert.ok(!parsedManifest.warning);
+      const parsedManifest = manifestParser(
+        '{"icons": {"16": "img/icons/icon16.png"}}',
+        EXAMPLE_MANIFEST_URL,
+        EXAMPLE_DOC_URL
+      );
+
+      expect(parsedManifest.warning).toBeUndefined();
       const icons = parsedManifest.value.icons;
       assert.ok(Array.isArray(icons.value));
       assert.equal(icons.value.length, 0);
@@ -60,9 +77,8 @@ describe('Manifest Parser', function() {
     });
 
     it('gives an empty array and no error for missing icons entry', () => {
-      const parsedManifest = manifestParser('{}',
-          EXAMPLE_MANIFEST_URL, EXAMPLE_DOC_URL);
-      assert.ok(!parsedManifest.warning);
+      const parsedManifest = manifestParser('{}', EXAMPLE_MANIFEST_URL, EXAMPLE_DOC_URL);
+      expect(parsedManifest.warning).toBeUndefined();
       const icons = parsedManifest.value.icons;
       assert.ok(Array.isArray(icons.value));
       assert.equal(icons.value.length, 0);
@@ -70,9 +86,12 @@ describe('Manifest Parser', function() {
     });
 
     it('parses basic string', function() {
-      const parsedManifest = manifestParser('{"icons": [{"src": "192.png", "sizes": "192x192"}]}',
-          EXAMPLE_MANIFEST_URL, EXAMPLE_DOC_URL);
-      assert(!parsedManifest.warning);
+      const parsedManifest = manifestParser(
+        '{"icons": [{"src": "192.png", "sizes": "192x192"}]}',
+        EXAMPLE_MANIFEST_URL,
+        EXAMPLE_DOC_URL
+      );
+      expect(parsedManifest.warning).toBeUndefined();
       const icons = parsedManifest.value.icons;
       assert(!icons.warning);
       const icon192 = icons.value[0];
@@ -81,9 +100,12 @@ describe('Manifest Parser', function() {
     });
 
     it('finds four icons in the stub manifest', function() {
-      const parsedManifest = manifestParser(JSON.stringify(manifestStub), EXAMPLE_MANIFEST_URL,
-          EXAMPLE_DOC_URL);
-      assert(!parsedManifest.warning);
+      const parsedManifest = manifestParser(
+        JSON.stringify(manifestStub),
+        EXAMPLE_MANIFEST_URL,
+        EXAMPLE_DOC_URL
+      );
+      expect(parsedManifest.warning).toBeUndefined();
       assert.equal(parsedManifest.value.icons.value.length, 4);
     });
 
@@ -110,6 +132,19 @@ describe('Manifest Parser', function() {
       assert.equal(icons.value.length, 0);
     });
 
+    it('parses icons and discards any with invalid base URL values', () => {
+      const manifestSrc = JSON.stringify({
+        icons: [{
+          src: '/valid/path',
+        }],
+      });
+      const parsedManifest = manifestParser(manifestSrc, EXAMPLE_MANIFEST_BLOB_URL,
+        EXAMPLE_DOC_URL);
+      const icons = parsedManifest.value.icons;
+      expect(icons.value).toHaveLength(0);
+      expect(icons.warning).toEqual('WARNING: Some icons were ignored due to warnings.');
+    });
+
     it('parses icons and discards any with undefined or empty string src values', () => {
       const manifestSrc = JSON.stringify({
         icons: [{
@@ -139,23 +174,23 @@ describe('Manifest Parser', function() {
   describe('name parsing', function() {
     it('parses basic string', function() {
       const parsedManifest = noUrlManifestParser('{"name":"foo"}');
-      assert(!parsedManifest.warning);
+      expect(parsedManifest.warning).toBeUndefined();
       assert.equal(parsedManifest.value.name.value, 'foo');
     });
 
     it('trims whitespaces', function() {
       const parsedManifest = noUrlManifestParser('{"name":" foo "}');
-      assert(!parsedManifest.warning);
+      expect(parsedManifest.warning).toBeUndefined();
       assert.equal(parsedManifest.value.name.value, 'foo');
     });
 
     it('doesn\'t parse non-string', function() {
       let parsedManifest = noUrlManifestParser('{"name": {} }');
-      assert(!parsedManifest.warning);
+      expect(parsedManifest.warning).toBeUndefined();
       assert.equal(parsedManifest.value.name.value, undefined);
 
       parsedManifest = noUrlManifestParser('{"name": 42 }');
-      assert(!parsedManifest.warning);
+      expect(parsedManifest.warning).toBeUndefined();
       assert.equal(parsedManifest.value.name.value, undefined);
     });
   });
@@ -163,23 +198,23 @@ describe('Manifest Parser', function() {
   describe('short_name parsing', function() {
     it('parses basic string', function() {
       const parsedManifest = noUrlManifestParser('{"short_name":"foo"}');
-      assert(!parsedManifest.warning);
+      expect(parsedManifest.warning).toBeUndefined();
       assert.equal(parsedManifest.value.short_name.value, 'foo');
     });
 
     it('trims whitespaces', function() {
       const parsedManifest = noUrlManifestParser('{"short_name":" foo "}');
-      assert(!parsedManifest.warning);
+      expect(parsedManifest.warning).toBeUndefined();
       assert.equal(parsedManifest.value.short_name.value, 'foo');
     });
 
     it('doesn\'t parse non-string', function() {
       let parsedManifest = noUrlManifestParser('{"short_name": {} }');
-      assert(!parsedManifest.warning);
+      expect(parsedManifest.warning).toBeUndefined();
       assert.equal(parsedManifest.value.short_name.value, undefined);
 
       parsedManifest = noUrlManifestParser('{"short_name": 42 }');
-      assert(!parsedManifest.warning);
+      expect(parsedManifest.warning).toBeUndefined();
       assert.equal(parsedManifest.value.short_name.value, undefined);
     });
   });

From 2cc59c7e11a02167dbedbae046ec5dc0c648529e Mon Sep 17 00:00:00 2001
From: cjamcl <cjamcl@google.com>
Date: Mon, 3 Jun 2019 11:01:09 -0700
Subject: [PATCH 004/110] devtools: rename audits2 to audits (#8985)

---
 clients/devtools-report-assets.js                   |  8 ++++----
 lighthouse-core/report/html/readme.md               |  2 +-
 lighthouse-core/scripts/compile-against-devtools.sh | 10 +++++-----
 lighthouse-core/scripts/roll-to-devtools.sh         |  4 ++--
 4 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/clients/devtools-report-assets.js b/clients/devtools-report-assets.js
index a94320496734..58b80f645f2b 100644
--- a/clients/devtools-report-assets.js
+++ b/clients/devtools-report-assets.js
@@ -17,8 +17,8 @@
 const cachedResources = Runtime.cachedResources;
 
 module.exports = {
-  REPORT_CSS: cachedResources['audits2/lighthouse/report.css'],
-  REPORT_JAVASCRIPT: cachedResources['audits2/lighthouse/report.js'],
-  REPORT_TEMPLATE: cachedResources['audits2/lighthouse/template.html'],
-  REPORT_TEMPLATES: cachedResources['audits2/lighthouse/templates.html'],
+  REPORT_CSS: cachedResources['audits/lighthouse/report.css'],
+  REPORT_JAVASCRIPT: cachedResources['audits/lighthouse/report.js'],
+  REPORT_TEMPLATE: cachedResources['audits/lighthouse/template.html'],
+  REPORT_TEMPLATES: cachedResources['audits/lighthouse/templates.html'],
 };
diff --git a/lighthouse-core/report/html/readme.md b/lighthouse-core/report/html/readme.md
index 3f56c76fdb20..3cc71c1ca526 100644
--- a/lighthouse-core/report/html/readme.md
+++ b/lighthouse-core/report/html/readme.md
@@ -32,7 +32,7 @@ The renderer was designed to be portable across various environments.
 
 1. _LH Chrome Extension_: It [creates the HTML as the runner finishes up](https://github.com/GoogleChrome/lighthouse/blob/440155cdda377c458c0efce006bc3a69ce2a351c/lighthouse-core/runner.js#L137-L138) and transforms it [into a blob url in the background page](https://github.com/GoogleChrome/lighthouse/blob/440155cdda377c458c0efce006bc3a69ce2a351c/lighthouse-extension/app/src/lighthouse-ext-background.js#L129-L143).
 1. _LH CLI_: It [creates the HTML as the runner finishes up](https://github.com/GoogleChrome/lighthouse/blob/440155cdda377c458c0efce006bc3a69ce2a351c/lighthouse-core/runner.js#L137-L138) and [saves it to disk](https://github.com/GoogleChrome/lighthouse/blob/440155cdda377c458c0efce006bc3a69ce2a351c/lighthouse-cli/printer.js#L71-L92).
-1. _Chrome DevTools Audits Panel_: The `renderer` files are rolled into the Chromium repo, and they execute within the DevTools context. The audits panel [receives the LHR object from a WebWorker](https://github.com/ChromeDevTools/devtools-frontend/blob/master/front_end/audits2/Audits2ProtocolService.js#L27-L35), through a `postMessage` and then runs [the renderer within DevTools UI](https://github.com/ChromeDevTools/devtools-frontend/blob/fee00605cada877c1f8e3aae758a0f8d05b64476/front_end/audits2/Audits2Panel.js#L519-L542), making a few upgrades ([one](https://github.com/ChromeDevTools/devtools-frontend/blob/fee00605cada877c1f8e3aae758a0f8d05b64476/front_end/audits2/Audits2Panel.js#L570-L583), [two](https://github.com/ChromeDevTools/devtools-frontend/blob/fee00605cada877c1f8e3aae758a0f8d05b64476/front_end/audits2/Audits2Panel.js#L596-L637)) and [simplifications](https://github.com/ChromeDevTools/devtools-frontend/blob/fee00605cada877c1f8e3aae758a0f8d05b64476/front_end/audits2/Audits2Panel.js#L275-L304).
+1. _Chrome DevTools Audits Panel_: The `renderer` files are rolled into the Chromium repo, and they execute within the DevTools context. The audits panel [receives the LHR object from a WebWorker](https://github.com/ChromeDevTools/devtools-frontend/blob/aa1532c2f8bdc37c9886255644ed90ad01c61c77/front_end/audits/AuditsProtocolService.js#L27-L35), through a `postMessage` and then runs [the renderer within DevTools UI](https://github.com/ChromeDevTools/devtools-frontend/blob/aa1532c2f8bdc37c9886255644ed90ad01c61c77/front_end/audits/AuditsPanel.js#L123-L157), making a few [simplifications](https://github.com/ChromeDevTools/devtools-frontend/blob/master/front_end/audits/AuditsReportRenderer.js).
 1. _Hosted [Lighthouse Viewer](https://googlechrome.github.io/lighthouse/viewer/)_: It's a webapp that has the renderer (along with some [additional features](https://github.com/GoogleChrome/lighthouse/blob/master/lighthouse-core/report/html/renderer/report-ui-features.js)) all compiled into a [`viewer.js`](https://googlechrome.github.io/lighthouse/viewer/src/viewer.js) file. Same [basic approach](https://github.com/GoogleChrome/lighthouse/blob/440155cdda377c458c0efce006bc3a69ce2a351c/lighthouse-viewer/app/src/lighthouse-report-viewer.js#L116-L117) there.
 
 ### Polyfills
diff --git a/lighthouse-core/scripts/compile-against-devtools.sh b/lighthouse-core/scripts/compile-against-devtools.sh
index d072579e84e2..49151e3ef637 100644
--- a/lighthouse-core/scripts/compile-against-devtools.sh
+++ b/lighthouse-core/scripts/compile-against-devtools.sh
@@ -13,7 +13,7 @@
 set -x
 
 # This the text here will override the renderer/ files in in the scripts[] array:
-#     https://github.com/ChromeDevTools/devtools-frontend/blob/master/front_end/audits2/module.json#L20
+#     https://github.com/ChromeDevTools/devtools-frontend/blob/master/front_end/audits/module.json#L20
 
 # (Currently this doesnt include logger or report-features)
 files_to_include="\"lighthouse\/renderer\/util.js\", \"lighthouse\/renderer\/dom.js\", \"lighthouse\/renderer\/category-renderer.js\", \"lighthouse\/renderer\/performance-category-renderer.js\", \"lighthouse\/renderer\/crc-details-renderer.js\", \"lighthouse\/renderer\/details-renderer.js\", \"lighthouse\/renderer\/report-renderer.js\","
@@ -54,13 +54,13 @@ cd "$lhroot_path" || exit 1
 yarn devtools "$frontend_path/front_end/"
 
 #
-# monkeypatch the audits2 module.json to include any new files we're added that aren't present
+# monkeypatch the audits module.json to include any new files we're added that aren't present
 #
-audit2_modulejson_path="$frontend_path/front_end/audits2/module.json"
+audit_modulejson_path="$frontend_path/front_end/audits/module.json"
 # remove existing renderer file mentions
-sed -i='' 's/.*\/renderer\/.*//' $audit2_modulejson_path
+sed -i='' 's/.*\/renderer\/.*//' $audit_modulejson_path
 # add in our hardcoded renderer file mentions
-sed -i='' "s/\"Audits2Panel\.js\"/ $files_to_include \"Audits2Panel.js\"/" $audit2_modulejson_path
+sed -i='' "s/\"AuditsPanel\.js\"/ $files_to_include \"AuditsPanel.js\"/" $audit_modulejson_path
 
 # compile, finally
 python "$frontend_path/scripts/compile_frontend.py" --protocol-externs-file "$protocol_path/externs/protocol_externs.js"
diff --git a/lighthouse-core/scripts/roll-to-devtools.sh b/lighthouse-core/scripts/roll-to-devtools.sh
index 963cb42c010a..5959fd902182 100755
--- a/lighthouse-core/scripts/roll-to-devtools.sh
+++ b/lighthouse-core/scripts/roll-to-devtools.sh
@@ -33,10 +33,10 @@ else
 fi
 
 report_dir="lighthouse-core/report/html"
-fe_lh_dir="$frontend_dir/audits2/lighthouse"
+fe_lh_dir="$frontend_dir/audits/lighthouse"
 
 lh_bg_js="dist/lighthouse-dt-bundle.js"
-lh_worker_dir="$frontend_dir/audits2_worker/lighthouse"
+lh_worker_dir="$frontend_dir/audits_worker/lighthouse"
 
 # copy lighthouse-dt-bundle (potentially stale)
 cp -pPR "$lh_bg_js" "$lh_worker_dir/lighthouse-dt-bundle.js"

From f8552d5ff0cb0a38716236d8347eba31da50c76c Mon Sep 17 00:00:00 2001
From: Mitchell Simoens <mitchellsimoens@gmail.com>
Date: Mon, 3 Jun 2019 16:48:24 -0400
Subject: [PATCH 005/110] docs(readme): Add gimbal integration (#9083)

---
 readme.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/readme.md b/readme.md
index f911924eb001..3732042aeccb 100644
--- a/readme.md
+++ b/readme.md
@@ -304,6 +304,7 @@ This section details services that have integrated Lighthouse data. If you're wo
 ## Related Projects
 Other awesome open source projects that use Lighthouse.
 
+* **[Gimbal](https://labs.moduscreate.com/gimbal-web-performance-audit-budgeting)** - An [open source (MIT licensed)](https://github.com/ModusCreateOrg/gimbal) tool used to measure, analyze, and budget aspects of a web application. Gimbal also integrates reports with GitHub pull requests.
 * **[webpack-lighthouse-plugin](https://github.com/addyosmani/webpack-lighthouse-plugin)** - run Lighthouse from a Webpack build.
 * **[lighthouse-mocha-example](https://github.com/justinribeiro/lighthouse-mocha-example)** - gather performance metrics via Lighthouse and tests them in Mocha
 * **[pwmetrics](https://github.com/paulirish/pwmetrics/)** - gather performance metrics

From 93387cd83db3f713125d0d515000f85b37607e23 Mon Sep 17 00:00:00 2001
From: Paul Irish <paulirish@google.com>
Date: Tue, 4 Jun 2019 00:00:00 +0200
Subject: [PATCH 006/110] core(driver): security errors are no longer a fatal
 or pageload error (#8865)

---
 .../test/smokehouse/error-expectations.js     |   4 +-
 lighthouse-core/gather/driver.js              |  58 +---------
 lighthouse-core/test/gather/driver-test.js    | 102 ------------------
 3 files changed, 3 insertions(+), 161 deletions(-)

diff --git a/lighthouse-cli/test/smokehouse/error-expectations.js b/lighthouse-cli/test/smokehouse/error-expectations.js
index 04d804e5a613..55afc640f430 100644
--- a/lighthouse-cli/test/smokehouse/error-expectations.js
+++ b/lighthouse-cli/test/smokehouse/error-expectations.js
@@ -18,10 +18,10 @@ module.exports = [
     },
   },
   {
-    errorCode: 'INSECURE_DOCUMENT_REQUEST',
+    errorCode: undefined,
     lhr: {
       requestedUrl: 'https://expired.badssl.com',
-      finalUrl: 'https://expired.badssl.com',
+      finalUrl: 'https://expired.badssl.com/',
       audits: {},
     },
   },
diff --git a/lighthouse-core/gather/driver.js b/lighthouse-core/gather/driver.js
index 93f267a8ae85..a07c4d6d6295 100644
--- a/lighthouse-core/gather/driver.js
+++ b/lighthouse-core/gather/driver.js
@@ -903,53 +903,6 @@ class Driver {
     };
   }
 
-  /**
-   * Return a promise that resolves when an insecure security state is encountered
-   * and a method to cancel internal listeners.
-   * @return {{promise: Promise<string>, cancel: function(): void}}
-   * @private
-   */
-  _monitorForInsecureState() {
-    /** @type {(() => void)} */
-    let cancel = () => {
-      throw new Error('_monitorForInsecureState.cancel() called before it was defined');
-    };
-
-    const promise = new Promise((resolve, reject) => {
-      /**
-       * @param {LH.Crdp.Security.SecurityStateChangedEvent} event
-       */
-      const securityStateChangedListener = ({
-        securityState,
-        explanations,
-        schemeIsCryptographic,
-      }) => {
-        if (securityState === 'insecure' && schemeIsCryptographic) {
-          cancel();
-          const insecureDescriptions = explanations
-            .filter(exp => exp.securityState === 'insecure')
-            .map(exp => exp.description);
-          resolve(insecureDescriptions.join(' '));
-        }
-      };
-      let canceled = false;
-      cancel = () => {
-        if (canceled) return;
-        canceled = true;
-        this.off('Security.securityStateChanged', securityStateChangedListener);
-        // TODO(@patrickhulce): cancel() should really be a promise itself to handle things like this
-        this.sendCommand('Security.disable').catch(() => {});
-      };
-      this.on('Security.securityStateChanged', securityStateChangedListener);
-      this.sendCommand('Security.enable').catch(() => {});
-    });
-
-    return {
-      promise,
-      cancel,
-    };
-  }
-
   /**
    * Returns whether the page appears to be hung.
    * @return {Promise<boolean>}
@@ -1001,13 +954,6 @@ class Driver {
     // CPU listener. Resolves when the CPU has been idle for cpuQuietThresholdMs after network idle.
     let waitForCPUIdle = this._waitForNothing();
 
-    const monitorForInsecureState = this._monitorForInsecureState();
-    const securityCheckPromise = monitorForInsecureState.promise.then(securityMessages => {
-      return function() {
-        throw new LHError(LHError.errors.INSECURE_DOCUMENT_REQUEST, {securityMessages});
-      };
-    });
-
     // Wait for both load promises. Resolves on cleanup function the clears load
     // timeout timer.
     const loadPromise = Promise.all([
@@ -1044,9 +990,8 @@ class Driver {
       };
     });
 
-    // Wait for security issue, load or timeout and run the cleanup function the winner returns.
+    // Wait for load or timeout and run the cleanup function the winner returns.
     const cleanupFn = await Promise.race([
-      securityCheckPromise,
       loadPromise,
       maxTimeoutPromise,
     ]);
@@ -1056,7 +1001,6 @@ class Driver {
     waitForLoadEvent.cancel();
     waitForNetworkIdle.cancel();
     waitForCPUIdle.cancel();
-    monitorForInsecureState.cancel();
 
     await cleanupFn();
   }
diff --git a/lighthouse-core/test/gather/driver-test.js b/lighthouse-core/test/gather/driver-test.js
index d96ee191b1b9..dfe5ed6ba6af 100644
--- a/lighthouse-core/test/gather/driver-test.js
+++ b/lighthouse-core/test/gather/driver-test.js
@@ -675,108 +675,6 @@ describe('.gotoURL', () => {
       // Make sure we still cleaned up our listeners
       expect(driver._waitForLoadEvent.getMockCancelFn()).toHaveBeenCalled();
     });
-
-    it('does not reject when page is secure', async () => {
-      const secureSecurityState = {
-        explanations: [],
-        securityState: 'secure',
-      };
-
-      driver.on = driver.once = createMockOnceFn()
-        .mockEvent('Security.securityStateChanged', secureSecurityState);
-
-      const startUrl = 'https://www.example.com';
-      const loadOptions = {
-        waitForLoad: true,
-        passContext: {
-          settings: {
-            maxWaitForLoad: 1,
-          },
-        },
-      };
-
-      const loadPromise = driver.gotoURL(startUrl, loadOptions);
-      await flushAllTimersAndMicrotasks();
-      await loadPromise;
-    });
-
-    it('does not reject when page is insecure but http', async () => {
-      const secureSecurityState = {
-        explanations: [],
-        securityState: 'insecure',
-        schemeIsCryptographic: false,
-      };
-
-      driver.on = driver.once = createMockOnceFn()
-        .mockEvent('Security.securityStateChanged', secureSecurityState);
-
-      const startUrl = 'https://www.example.com';
-      const loadOptions = {
-        waitForLoad: true,
-        passContext: {
-          settings: {
-            maxWaitForLoad: 1,
-          },
-        },
-      };
-
-      const loadPromise = driver.gotoURL(startUrl, loadOptions);
-      await flushAllTimersAndMicrotasks();
-      await loadPromise;
-    });
-
-    it('rejects when page is insecure', async () => {
-      const insecureSecurityState = {
-        explanations: [
-          {
-            description: 'reason 1.',
-            securityState: 'insecure',
-          },
-          {
-            description: 'blah.',
-            securityState: 'info',
-          },
-          {
-            description: 'reason 2.',
-            securityState: 'insecure',
-          },
-        ],
-        securityState: 'insecure',
-        schemeIsCryptographic: true,
-      };
-
-      driver.on = driver.once = createMockOnceFn();
-
-      const startUrl = 'https://www.example.com';
-      const loadOptions = {
-        waitForLoad: true,
-        passContext: {
-          passConfig: {
-            networkQuietThresholdMs: 1,
-          },
-        },
-      };
-
-      // 2 assertions in the catch block and the 1 implicit in `findListener`
-      expect.assertions(3);
-
-      try {
-        const loadPromise = driver.gotoURL(startUrl, loadOptions);
-        await flushAllTimersAndMicrotasks();
-
-        // Use `findListener` instead of `mockEvent` so we can control exactly when the promise resolves
-        const listener = driver.on.findListener('Security.securityStateChanged');
-        listener(insecureSecurityState);
-        await flushAllTimersAndMicrotasks();
-        await loadPromise;
-      } catch (err) {
-        expect(err).toHaveProperty('code', 'INSECURE_DOCUMENT_REQUEST');
-        expect(err.friendlyMessage).toBeDisplayString(
-          'The URL you have provided does not have a valid security certificate. ' +
-          'reason 1. reason 2.'
-        );
-      }
-    });
   });
 });
 

From 5debdde366042724dc102a6a5a75fd1f38f7222a Mon Sep 17 00:00:00 2001
From: Patrick Hulce <patrick.hulce@gmail.com>
Date: Tue, 4 Jun 2019 10:41:42 -0500
Subject: [PATCH 007/110] docs(readme): alphabetize related projects (#9110)

---
 readme.md | 23 ++++++++++++-----------
 1 file changed, 12 insertions(+), 11 deletions(-)

diff --git a/readme.md b/readme.md
index 3732042aeccb..4acb02f5a75f 100644
--- a/readme.md
+++ b/readme.md
@@ -304,23 +304,24 @@ This section details services that have integrated Lighthouse data. If you're wo
 ## Related Projects
 Other awesome open source projects that use Lighthouse.
 
+* **[Garie](https://github.com/boyney123/garie)** — An open source tool for monitoring performance using Lighthouse,  PageSpeed Insights, [Prometheus](https://prometheus.io/), [Grafana](https://grafana.com/) and [Docker](https://www.docker.com/).
 * **[Gimbal](https://labs.moduscreate.com/gimbal-web-performance-audit-budgeting)** - An [open source (MIT licensed)](https://github.com/ModusCreateOrg/gimbal) tool used to measure, analyze, and budget aspects of a web application. Gimbal also integrates reports with GitHub pull requests.
-* **[webpack-lighthouse-plugin](https://github.com/addyosmani/webpack-lighthouse-plugin)** - run Lighthouse from a Webpack build.
-* **[lighthouse-mocha-example](https://github.com/justinribeiro/lighthouse-mocha-example)** - gather performance metrics via Lighthouse and tests them in Mocha
-* **[pwmetrics](https://github.com/paulirish/pwmetrics/)** - gather performance metrics
-* **[lighthouse-hue](https://github.com/ebidel/lighthouse-hue)** - set the color of Philips Hue lights based on a Lighthouse score
-   * **[lighthouse-magic-light](https://github.com/manekinekko/lighthouse-magic-light)** set the color of the MagicLight Bluetooth Smart Light Bulb based on Lighthouse score
-* **[lighthouse-batch](https://www.npmjs.com/package/lighthouse-batch)** - run Lighthouse over a number of sites and generate a summary of their metrics/scores.
+* **[lightcrawler](https://github.com/github/lightcrawler)** - Crawl a website and run each page found through Lighthouse.
 * **[lighthouse-badges](https://github.com/emazzotta/lighthouse-badges)** - Generate gh-badges (shields.io) based on Lighthouse performance.
+* **[lighthouse-batch](https://www.npmjs.com/package/lighthouse-batch)** - run Lighthouse over a number of sites and generate a summary of their metrics/scores.
+* **[lighthouse-ci](https://github.com/andreasonny83/lighthouse-ci)** - Run Lighthouse and assert scores satisfy your custom thresholds.
 * **[lighthouse-cron](https://github.com/thearegee/lighthouse-cron)** - Cron multiple batch Lighthouse audits and emit results for sending to remote server.
-* **[lightcrawler](https://github.com/github/lightcrawler)** - Crawl a website and run each page found through Lighthouse.
+* **[lighthouse-gh-reporter](https://github.com/carlesnunez/lighthouse-gh-reporter)** - Run Lighthouse in CI and report back in a comment on your pull requests
+* **[lighthouse-hue](https://github.com/ebidel/lighthouse-hue)** - set the color of Philips Hue lights based on a Lighthouse score
 * **[lighthouse-lambda](https://github.com/joytocode/lighthouse-lambda)** - Run Lighthouse on AWS Lambda with prebuilt stable desktop Headless Chrome.
-* **[Garie](https://github.com/boyney123/garie)** — An open source tool for monitoring performance using Lighthouse,  PageSpeed Insights, [Prometheus](https://prometheus.io/), [Grafana](https://grafana.com/) and [Docker](https://www.docker.com/).
-* **[lighthouse-ci](https://github.com/andreasonny83/lighthouse-ci)** - Run Lighthouse and assert scores satisfy your custom thresholds.
+* **[lighthouse-magic-light](https://github.com/manekinekko/lighthouse-magic-light)** set the color of the MagicLight Bluetooth Smart Light Bulb based on Lighthouse score
+* **[lighthouse-mocha-example](https://github.com/justinribeiro/lighthouse-mocha-example)** - gather performance metrics via Lighthouse and tests them in Mocha
 * **[lighthouse4u](https://github.com/godaddy/lighthouse4u)** - LH4U provides Google Lighthouse as a service, surfaced by both a friendly UI+API, and backed by Elastic Search for easy querying and visualization.
-* **[lighthouse-gh-reporter](https://github.com/carlesnunez/lighthouse-gh-reporter)** - Run Lighthouse in CI and report back in a comment on your pull requests
-* **[react-lighthouse-viewer](https://www.npmjs.com/package/react-lighthouse-viewer)** - Render a Lighthouse JSON report in a React Component.
 * **[performance-budgets](https://performance-budgets.netlify.com/)** - Easily assert Lighthouse budgets with Docker.
+* **[pwmetrics](https://github.com/paulirish/pwmetrics/)** - gather performance metrics
+* **[react-lighthouse-viewer](https://www.npmjs.com/package/react-lighthouse-viewer)** - Render a Lighthouse JSON report in a React Component.
+* **[webpack-lighthouse-plugin](https://github.com/addyosmani/webpack-lighthouse-plugin)** - run Lighthouse from a Webpack build.
+
 ## FAQ
 
 ### How does Lighthouse work?

From 273b4a4785006dbbc7007104f0576dbe692536fa Mon Sep 17 00:00:00 2001
From: Brendan Kenny <bckenny@gmail.com>
Date: Tue, 4 Jun 2019 12:43:39 -0700
Subject: [PATCH 008/110] docs: add instructions for testing with self-signed
 certificate (#9112)

---
 docs/readme.md | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/docs/readme.md b/docs/readme.md
index 4e376a975295..0cd05d05771a 100644
--- a/docs/readme.md
+++ b/docs/readme.md
@@ -115,6 +115,14 @@ instance with an open debugging port.
 1. Navigate to your site and log in.
 1. In a separate terminal tab, run `lighthouse http://mysite.com --port port-number` using the port number from chrome-debug.
 
+## Testing on a site with an untrusted certificate
+
+When testing a site with an untrusted certificate, Chrome will be unable to load the page and so the Lighthouse report will mostly contain errors.
+
+If this certificate **is one you control** and is necessary for development (for instance, `localhost` with a self-signed certificate for local HTTP/2 testing), we recommend you _add the certificate to your locally-trusted certificate store_. In Chrome, see `Settings` > `Privacy and Security` > `Manage certificates` or consult instructions for adding to the certificate store in your operating system.
+
+Alternatively, you can instruct Chrome to ignore the invalid certificate by adding the Lighthouse CLI flag `--chrome-flags="--ignore-certificate-errors"`. However, you must be as careful with this flag as it's equivalent to browsing the web with TLS disabled. Any content loaded by the test page (e.g. third-party scripts or iframed ads) will *also* not be subject to certificate checks, [opening up avenues for MitM attacks](https://www.chromium.org/Home/chromium-security/education/tls#TOC-What-security-properties-does-TLS-give-me-). For these reasons, we recommend the earlier solution of adding the certificate to your local cert store.
+
 ## Testing on a mobile device
 
 Lighthouse can run against a real mobile device. You can follow the [Remote Debugging on Android (Legacy Workflow)](https://developer.chrome.com/devtools/docs/remote-debugging-legacy) up through step 3.3, but the TL;DR is install & run adb, enable USB debugging, then port forward 9222 from the device to the machine with Lighthouse.

From 7deb5ab2a43b128666a3a127b5032618472b6710 Mon Sep 17 00:00:00 2001
From: Patrick Hulce <patrick.hulce@gmail.com>
Date: Tue, 4 Jun 2019 14:53:08 -0500
Subject: [PATCH 009/110] core(cli): accept flags from path (#9109)

---
 lighthouse-cli/cli-flags.js                   | 12 ++++++++++++
 lighthouse-cli/test/cli/cli-flags-test.js     | 19 +++++++++++++++++++
 .../test/fixtures/cli-flags-path.json         | 10 ++++++++++
 readme.md                                     |  2 ++
 4 files changed, 43 insertions(+)
 create mode 100644 lighthouse-cli/test/fixtures/cli-flags-path.json

diff --git a/lighthouse-cli/cli-flags.js b/lighthouse-cli/cli-flags.js
index 9b9ceb989cf2..9e7188f042e1 100644
--- a/lighthouse-cli/cli-flags.js
+++ b/lighthouse-cli/cli-flags.js
@@ -62,6 +62,17 @@ function getFlags(manualArgv) {
           'lighthouse <url> --only-categories=performance,pwa',
           'Only run specific categories.')
 
+      /**
+       * Also accept a file for all of these flags. Yargs will merge in and override the file-based
+       * flags with the command-line flags.
+       *
+       * i.e. when command-line `--throttling-method=provided` and file `throttlingMethod: "devtools"`,
+       * throttlingMethod will be `provided`.
+       *
+       * @see https://github.com/yargs/yargs/blob/a6e67f15a61558d0ba28bfe53385332f0ce5d431/docs/api.md#config
+       */
+      .config('cli-flags-path')
+
       // List of options
       .group(['verbose', 'quiet'], 'Logging:')
       .describe({
@@ -78,6 +89,7 @@ function getFlags(manualArgv) {
         ],
         'Configuration:')
       .describe({
+        'cli-flags-path': 'The path to a JSON file that contains the desired CLI flags to apply. Flags specified at the command line will still override the file-based ones.',
         // We don't allowlist specific locales. Why? So we can support the user who requests 'es-MX' (unsupported) and we'll fall back to 'es' (supported)
         'locale': 'The locale/language the report should be formatted in',
         'enable-error-reporting':
diff --git a/lighthouse-cli/test/cli/cli-flags-test.js b/lighthouse-cli/test/cli/cli-flags-test.js
index 431386a0f976..ed7d073acd74 100644
--- a/lighthouse-cli/test/cli/cli-flags-test.js
+++ b/lighthouse-cli/test/cli/cli-flags-test.js
@@ -29,6 +29,25 @@ describe('CLI bin', function() {
     });
   });
 
+  it('settings are accepted from a file path', () => {
+    const flags = getFlags([
+      'http://www.example.com',
+      `--cli-flags-path="${__dirname}/../fixtures/cli-flags-path.json"`,
+      '--budgets-path=path/to/my/budget-from-command-line.json', // this should override the config value
+    ].join(' '));
+
+    expect(flags).toMatchObject({
+      budgetsPath: 'path/to/my/budget-from-command-line.json',
+      onlyCategories: ['performance', 'seo'],
+      chromeFlags: '--window-size 800,600',
+      throttlingMethod: 'devtools',
+      throttling: {
+        requestLatencyMs: 700,
+        cpuSlowdownMultiplier: 6,
+      },
+    });
+  });
+
   it('array values support csv when appropriate', () => {
     const flags = getFlags([
       'http://www.example.com',
diff --git a/lighthouse-cli/test/fixtures/cli-flags-path.json b/lighthouse-cli/test/fixtures/cli-flags-path.json
new file mode 100644
index 000000000000..7d993c9df5c9
--- /dev/null
+++ b/lighthouse-cli/test/fixtures/cli-flags-path.json
@@ -0,0 +1,10 @@
+{
+  "budgetPath": "path/to/my/budget-from-config.json",
+  "onlyCategories": ["performance", "seo"],
+  "chromeFlags": "--window-size 800,600",
+  "throttling-method": "devtools",
+  "throttling": {
+    "requestLatencyMs": 700,
+    "cpuSlowdownMultiplier": 6
+  }
+}
diff --git a/readme.md b/readme.md
index 4acb02f5a75f..c0ce1e340842 100644
--- a/readme.md
+++ b/readme.md
@@ -89,6 +89,8 @@ Output:
 Options:
   --help                        Show help                                                                                                  [boolean]
   --version                     Show version number                                                                                        [boolean]
+  --cli-flags-path              The path to a JSON file that contains the desired CLI flags to apply.
+                                Flags specified at the command line will still override the file-based ones.
   --blocked-url-patterns        Block any network requests to the specified URL patterns                                                     [array]
   --disable-storage-reset       Disable clearing the browser cache and other storage APIs before a run                                     [boolean]
   --throttling-method                  Controls throttling method         [choices: "devtools", "provided", "simulate"]

From 4bd3a58da90ea9f31fa3551b853b0bccc9e095ce Mon Sep 17 00:00:00 2001
From: Patrick Hulce <patrick.hulce@gmail.com>
Date: Tue, 4 Jun 2019 14:56:14 -0500
Subject: [PATCH 010/110] misc: address release script feedback (#9111)

---
 docs/releasing.md                             | 22 ++++++++++---------
 .../scripts/release/clean-pristine.sh         | 17 --------------
 .../scripts/release/prepare-commit.sh         |  2 +-
 lighthouse-core/scripts/release/test.sh       |  2 +-
 4 files changed, 14 insertions(+), 29 deletions(-)
 delete mode 100755 lighthouse-core/scripts/release/clean-pristine.sh

diff --git a/docs/releasing.md b/docs/releasing.md
index eabdf233dd67..e65cc3475f88 100644
--- a/docs/releasing.md
+++ b/docs/releasing.md
@@ -44,24 +44,26 @@ bash ./lighthouse-core/scripts/release/test.sh
 # Package everything for publishing
 bash ./lighthouse-core/scripts/release/prepare-package.sh
 
+# Make sure you're in the Lighthouse pristine repo we just tested.
+cd ../lighthouse-pristine
+
+# Publish to NPM
+npm publish
+
+# Publish viewer
+yarn deploy-viewer
+
 # Upload the extension
-node build/build-extension.js package; cd dist/extension-package/
 open https://chrome.google.com/webstore/developer/edit/blipmdconlkpinefehnmjammfjpmpbjk
-echo "Upload the package zip to CWS dev dashboard"
+cd dist/extension-package/
+echo "Upload the package zip to CWS dev dashboard..."
 # Be in lighthouse-extension-owners group
 # Open <https://chrome.google.com/webstore/developer/dashboard>
 # Click _Edit_ on lighthouse
 # _Upload Updated Package_
-# Select `lighthouse-4.X.X.zip`
+# Select `lighthouse-X.X.X.zip`
 # _Publish_ at the bottom
 
-# Make sure you're in the Lighthouse pristine repo we just tested.
-cd ../lighthouse-pristine
-# Publish to NPM
-npm publish
-# Publish viewer
-yarn deploy-viewer
-
 # * Tell the world!!! *
 echo "Complete the _Release publicity_ tasks documented above"
 ```
diff --git a/lighthouse-core/scripts/release/clean-pristine.sh b/lighthouse-core/scripts/release/clean-pristine.sh
deleted file mode 100755
index f4bf04a26e3a..000000000000
--- a/lighthouse-core/scripts/release/clean-pristine.sh
+++ /dev/null
@@ -1,17 +0,0 @@
-#!/usr/bin/env bash
-
-DIRNAME="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
-LH_ROOT="$DIRNAME/../../.."
-cd $LH_ROOT
-
-set -euxo pipefail
-
-# Setup a pristine git environment
-cd ../lighthouse-pristine
-
-if [[ -z "$(git status --porcelain)" ]]; then
-  echo "Pristine repo already clean!"
-  exit 0
-fi
-
-git clean -fx
diff --git a/lighthouse-core/scripts/release/prepare-commit.sh b/lighthouse-core/scripts/release/prepare-commit.sh
index f143149e0c78..314831f223a0 100755
--- a/lighthouse-core/scripts/release/prepare-commit.sh
+++ b/lighthouse-core/scripts/release/prepare-commit.sh
@@ -70,7 +70,7 @@ echo "Version bump commit ready on the ${TXT_BOLD}$BRANCH_NAME${TXT_RESET} branc
 
 echo "${TXT_DIM}Press any key to see the git diff, CTRL+C to exit...${TXT_RESET}"
 read -n 1 -r unused_variable
-git --no-pager diff HEAD^
+git diff HEAD^
 echo "${TXT_DIM}Press any key to push to GitHub, CTRL+C to exit...${TXT_RESET}"
 read -n 1 -r unused_variable
 git push -u origin "$BRANCH_NAME"
diff --git a/lighthouse-core/scripts/release/test.sh b/lighthouse-core/scripts/release/test.sh
index 271a083466b4..fb568567c104 100755
--- a/lighthouse-core/scripts/release/test.sh
+++ b/lighthouse-core/scripts/release/test.sh
@@ -24,7 +24,7 @@ echo "Running the standard test suite..."
 yarn test
 
 echo "Running the smoke tests...."
-yarn smoke
+yarn smoke || yarn smoke || yarn smoke
 
 echo "Testing the CLI..."
 yarn start "https://example.com" --view

From 952ae027a9dac4ae461411e8ee99cd4bb3c5910a Mon Sep 17 00:00:00 2001
From: Deepanjan Roy <dproy@google.com>
Date: Tue, 4 Jun 2019 20:09:13 -0400
Subject: [PATCH 011/110] new_audit: add cumulative-long-queuing-delay to JSON
 (#8975)

---
 .../test/cli/__snapshots__/index-test.js.snap |   7 +
 lighthouse-core/audits/metrics.js             |   4 +
 .../metrics/cumulative-long-queuing-delay.js  |  79 +++++++++++
 .../metrics/cumulative-long-queuing-delay.js  | 124 ++++++++++++++++++
 .../lantern-cumulative-long-queuing-delay.js  | 121 +++++++++++++++++
 lighthouse-core/config/default-config.js      |   3 +-
 .../audits/__snapshots__/metrics-test.js.snap |   1 +
 .../cumulative-long-queuing-delay-test.js     |  32 +++++
 .../cumulative-long-queuing-delay-test.js     | 115 ++++++++++++++++
 lighthouse-core/test/results/sample_v2.json   |  32 +++++
 proto/sample_v2_round_trip.json               |  32 +++++
 11 files changed, 549 insertions(+), 1 deletion(-)
 create mode 100644 lighthouse-core/audits/metrics/cumulative-long-queuing-delay.js
 create mode 100644 lighthouse-core/computed/metrics/cumulative-long-queuing-delay.js
 create mode 100644 lighthouse-core/computed/metrics/lantern-cumulative-long-queuing-delay.js
 create mode 100644 lighthouse-core/test/audits/metrics/cumulative-long-queuing-delay-test.js
 create mode 100644 lighthouse-core/test/computed/metrics/cumulative-long-queuing-delay-test.js

diff --git a/lighthouse-cli/test/cli/__snapshots__/index-test.js.snap b/lighthouse-cli/test/cli/__snapshots__/index-test.js.snap
index d2aa1fbba196..3983c1067232 100644
--- a/lighthouse-cli/test/cli/__snapshots__/index-test.js.snap
+++ b/lighthouse-cli/test/cli/__snapshots__/index-test.js.snap
@@ -42,6 +42,9 @@ Object {
     Object {
       "path": "metrics/estimated-input-latency",
     },
+    Object {
+      "path": "metrics/cumulative-long-queuing-delay",
+    },
     Object {
       "path": "metrics/max-potential-fid",
     },
@@ -710,6 +713,10 @@ Object {
           "id": "estimated-input-latency",
           "weight": 0,
         },
+        Object {
+          "id": "cumulative-long-queuing-delay",
+          "weight": 0,
+        },
         Object {
           "group": "load-opportunities",
           "id": "render-blocking-resources",
diff --git a/lighthouse-core/audits/metrics.js b/lighthouse-core/audits/metrics.js
index 20a124612cc5..374517c2137a 100644
--- a/lighthouse-core/audits/metrics.js
+++ b/lighthouse-core/audits/metrics.js
@@ -14,6 +14,7 @@ const FirstCPUIdle = require('../computed/metrics/first-cpu-idle.js');
 const Interactive = require('../computed/metrics/interactive.js');
 const SpeedIndex = require('../computed/metrics/speed-index.js');
 const EstimatedInputLatency = require('../computed/metrics/estimated-input-latency.js');
+const CumulativeLongQueuingDelay = require('../computed/metrics/cumulative-long-queuing-delay.js');
 
 class Metrics extends Audit {
   /**
@@ -59,6 +60,7 @@ class Metrics extends Audit {
     const interactive = await requestOrUndefined(Interactive, metricComputationData);
     const speedIndex = await requestOrUndefined(SpeedIndex, metricComputationData);
     const estimatedInputLatency = await EstimatedInputLatency.request(metricComputationData, context); // eslint-disable-line max-len
+    const cumulativeLongQueuingDelay = await CumulativeLongQueuingDelay.request(metricComputationData, context); // eslint-disable-line max-len
 
     /** @type {UberMetricsItem} */
     const metrics = {
@@ -75,6 +77,7 @@ class Metrics extends Audit {
       speedIndexTs: speedIndex && speedIndex.timestamp,
       estimatedInputLatency: estimatedInputLatency.timing,
       estimatedInputLatencyTs: estimatedInputLatency.timestamp,
+      cumulativeLongQueuingDelay: cumulativeLongQueuingDelay.timing,
 
       // Include all timestamps of interest from trace of tab
       observedNavigationStart: traceOfTab.timings.navigationStart,
@@ -137,6 +140,7 @@ class Metrics extends Audit {
  * @property {number=} speedIndexTs
  * @property {number} estimatedInputLatency
  * @property {number=} estimatedInputLatencyTs
+ * @property {number} cumulativeLongQueuingDelay
  * @property {number} observedNavigationStart
  * @property {number} observedNavigationStartTs
  * @property {number=} observedFirstPaint
diff --git a/lighthouse-core/audits/metrics/cumulative-long-queuing-delay.js b/lighthouse-core/audits/metrics/cumulative-long-queuing-delay.js
new file mode 100644
index 000000000000..dd0297ad8da6
--- /dev/null
+++ b/lighthouse-core/audits/metrics/cumulative-long-queuing-delay.js
@@ -0,0 +1,79 @@
+/**
+ * @license Copyright 2019 Google Inc. All Rights Reserved.
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
+ */
+'use strict';
+
+const Audit = require('../audit.js');
+const CumulativeLQD = require('../../computed/metrics/cumulative-long-queuing-delay.js');
+
+// TODO(deepanjanroy): i18n strings once metric is final.
+const UIStringsNotExported = {
+  title: 'Cumulative Long Queuing Delay',
+  description: '[Experimental metric] Total time period between FCP and Time to Interactive ' +
+      'during which queuing time for any input event would be higher than 50ms.',
+};
+
+class CumulativeLongQueuingDelay extends Audit {
+  /**
+   * @return {LH.Audit.Meta}
+   */
+  static get meta() {
+    return {
+      id: 'cumulative-long-queuing-delay',
+      title: UIStringsNotExported.title,
+      description: UIStringsNotExported.description,
+      scoreDisplayMode: Audit.SCORING_MODES.NUMERIC,
+      requiredArtifacts: ['traces', 'devtoolsLogs'],
+    };
+  }
+
+  /**
+   * @return {LH.Audit.ScoreOptions}
+   */
+  static get defaultOptions() {
+    return {
+      // According to a cluster telemetry run over top 10k sites on mobile, 5th percentile was 0ms,
+      // 25th percentile was 270ms and median was 895ms. These numbers include 404 pages. Picking
+      // thresholds according to our 25/75-th rule will be quite harsh scoring (a single 350ms task)
+      // after FCP will yield a score of .5. The following coefficients are semi-arbitrarily picked
+      // to give 600ms jank a score of .5 and 100ms jank a score of .999. We can tweak these numbers
+      // in the future. See https://www.desmos.com/calculator/a7ib75kq3g
+      scoreMedian: 600,
+      scorePODR: 200,
+    };
+  }
+
+  /**
+   * Audits the page to calculate Cumulative Long Queuing Delay.
+   *
+   * We define Long Queuing Delay Region as any time interval in the loading timeline where queuing
+   * time for an input event would be longer than 50ms. For example, if there is a 110ms main thread
+   * task, the first 60ms of it is Long Queuing Delay Region, because any input event occuring in
+   * that region has to wait more than 50ms. Cumulative Long Queuing Delay is the sum of all Long
+   * Queuing Delay Regions between First Contentful Paint and Interactive Time (TTI).
+   *
+   * @param {LH.Artifacts} artifacts
+   * @param {LH.Audit.Context} context
+   * @return {Promise<LH.Audit.Product>}
+   */
+  static async audit(artifacts, context) {
+    const trace = artifacts.traces[Audit.DEFAULT_PASS];
+    const devtoolsLog = artifacts.devtoolsLogs[Audit.DEFAULT_PASS];
+    const metricComputationData = {trace, devtoolsLog, settings: context.settings};
+    const metricResult = await CumulativeLQD.request(metricComputationData, context);
+
+    return {
+      score: Audit.computeLogNormalScore(
+        metricResult.timing,
+        context.options.scorePODR,
+        context.options.scoreMedian
+      ),
+      numericValue: metricResult.timing,
+      displayValue: 10 * Math.round(metricResult.timing / 10) + '\xa0ms',
+    };
+  }
+}
+
+module.exports = CumulativeLongQueuingDelay;
diff --git a/lighthouse-core/computed/metrics/cumulative-long-queuing-delay.js b/lighthouse-core/computed/metrics/cumulative-long-queuing-delay.js
new file mode 100644
index 000000000000..65f9c7bdcc5a
--- /dev/null
+++ b/lighthouse-core/computed/metrics/cumulative-long-queuing-delay.js
@@ -0,0 +1,124 @@
+/**
+ * @license Copyright 2019 Google Inc. All Rights Reserved.
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
+ */
+'use strict';
+
+const makeComputedArtifact = require('../computed-artifact.js');
+const ComputedMetric = require('./metric.js');
+const LHError = require('../../lib/lh-error.js');
+const TracingProcessor = require('../../lib/traces/tracing-processor.js');
+const LanternCumulativeLongQueuingDelay = require('./lantern-cumulative-long-queuing-delay.js');
+const TimetoInteractive = require('./interactive.js');
+
+/**
+ * @fileoverview This audit determines Cumulative Long Queuing Delay between FCP and TTI.
+
+ * We define Long Queuing Delay Region as any time interval in the loading timeline where queuing
+ * time for an input event would be longer than 50ms. For example, if there is a 110ms main thread
+ * task, the first 60ms of it is Long Queuing Delay Region, because any input event occuring in
+ * that region has to wait more than 50ms. Cumulative Long Queuing Delay is the sum of all Long
+ * Queuing Delay Regions between First Contentful Paint and Interactive Time (TTI).
+ *
+ * This is a new metric designed to accompany Time to Interactive. TTI is strict and does not
+ * reflect incremental improvements to the site performance unless the improvement concerns the last
+ * long task. Cumulative Long Queuing Delay on the other hand is designed to be much more responsive
+ * to smaller improvements to main thread responsiveness.
+ */
+class CumulativeLongQueuingDelay extends ComputedMetric {
+  /**
+   * @return {number}
+   */
+  static get LONG_QUEUING_DELAY_THRESHOLD() {
+    return 50;
+  }
+  /**
+   * @param {Array<{start: number, end: number, duration: number}>} topLevelEvents
+   * @param {number} fcpTimeInMs
+   * @param {number} interactiveTimeMs
+   * @return {number}
+   */
+  static calculateSumOfLongQueuingDelay(topLevelEvents, fcpTimeInMs, interactiveTimeMs) {
+    if (interactiveTimeMs <= fcpTimeInMs) return 0;
+
+    const threshold = CumulativeLongQueuingDelay.LONG_QUEUING_DELAY_THRESHOLD;
+    const longQueuingDelayRegions = [];
+    // First identifying the long queuing delay regions.
+    for (const event of topLevelEvents) {
+      // If the task is less than the delay threshold, it contains no Long Queuing Delay Region.
+      if (event.duration < threshold) continue;
+      // Otherwise, the duration of the task before the delay-threshold-sized interval at the end is
+      // considered Long Queuing Delay Region. Example assuming the threshold is 50ms:
+      //   [              250ms Task                   ]
+      //   |  Long Queuing Delay Region  |   Last 50ms |
+      //               200 ms
+      longQueuingDelayRegions.push({
+        start: event.start,
+        end: event.end - threshold,
+        duration: event.duration - threshold,
+      });
+    }
+
+    let sumLongQueuingDelay = 0;
+    for (const region of longQueuingDelayRegions) {
+      // We only want to add up the Long Queuing Delay regions that fall between FCP and TTI.
+      //
+      // FCP is picked as the lower bound because there is little risk of user input happening
+      // before FCP so Long Queuing Qelay regions do not harm user experience. Developers should be
+      // optimizing to reach FCP as fast as possible without having to worry about task lengths.
+      //
+      // TTI is picked as the upper bound because we want a well defined end point so that the
+      // metric does not rely on how long we trace.
+      if (region.end < fcpTimeInMs) continue;
+      if (region.start > interactiveTimeMs) continue;
+
+      // If a Long Queuing Delay Region spans the edges of our region of interest, we clip it to
+      // only include the part of the region that falls inside.
+      const clippedStart = Math.max(region.start, fcpTimeInMs);
+      const clippedEnd = Math.min(region.end, interactiveTimeMs);
+      const queuingDelayAfterClipping = clippedEnd - clippedStart;
+
+      sumLongQueuingDelay += queuingDelayAfterClipping;
+    }
+
+    return sumLongQueuingDelay;
+  }
+
+  /**
+   * @param {LH.Artifacts.MetricComputationData} data
+   * @param {LH.Audit.Context} context
+   * @return {Promise<LH.Artifacts.LanternMetric>}
+   */
+  static computeSimulatedMetric(data, context) {
+    return LanternCumulativeLongQueuingDelay.request(data, context);
+  }
+
+  /**
+   * @param {LH.Artifacts.MetricComputationData} data
+   * @param {LH.Audit.Context} context
+   * @return {Promise<LH.Artifacts.Metric>}
+   */
+  static async computeObservedMetric(data, context) {
+    const {firstContentfulPaint} = data.traceOfTab.timings;
+    if (!firstContentfulPaint) {
+      throw new LHError(LHError.errors.NO_FCP);
+    }
+
+    const interactiveTimeMs = (await TimetoInteractive.request(data, context)).timing;
+
+    // Not using the start time argument of getMainThreadTopLevelEvents, because
+    // we need to clip the part of the task before the last 50ms properly.
+    const events = TracingProcessor.getMainThreadTopLevelEvents(data.traceOfTab);
+
+    return {
+      timing: CumulativeLongQueuingDelay.calculateSumOfLongQueuingDelay(
+        events,
+        firstContentfulPaint,
+        interactiveTimeMs
+      ),
+    };
+  }
+}
+
+module.exports = makeComputedArtifact(CumulativeLongQueuingDelay);
diff --git a/lighthouse-core/computed/metrics/lantern-cumulative-long-queuing-delay.js b/lighthouse-core/computed/metrics/lantern-cumulative-long-queuing-delay.js
new file mode 100644
index 000000000000..112b3539fb57
--- /dev/null
+++ b/lighthouse-core/computed/metrics/lantern-cumulative-long-queuing-delay.js
@@ -0,0 +1,121 @@
+/**
+ * @license Copyright 2019 Google Inc. All Rights Reserved.
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
+ */
+'use strict';
+
+const makeComputedArtifact = require('../computed-artifact.js');
+const LanternMetric = require('./lantern-metric.js');
+const BaseNode = require('../../lib/dependency-graph/base-node.js');
+const LanternFirstContentfulPaint = require('./lantern-first-contentful-paint.js');
+const LanternInteractive = require('./lantern-interactive.js');
+
+/** @typedef {BaseNode.Node} Node */
+
+class LanternCumulativeLongQueuingDelay extends LanternMetric {
+  /**
+   * @return {LH.Gatherer.Simulation.MetricCoefficients}
+   */
+  static get COEFFICIENTS() {
+    return {
+      intercept: 0,
+      optimistic: 0.5,
+      pessimistic: 0.5,
+    };
+  }
+
+  /**
+   * @param {Node} dependencyGraph
+   * @return {Node}
+   */
+  static getOptimisticGraph(dependencyGraph) {
+    return dependencyGraph;
+  }
+
+  /**
+   * @param {Node} dependencyGraph
+   * @return {Node}
+   */
+  static getPessimisticGraph(dependencyGraph) {
+    return dependencyGraph;
+  }
+
+  /**
+   * @param {LH.Gatherer.Simulation.Result} simulation
+   * @param {Object} extras
+   * @return {LH.Gatherer.Simulation.Result}
+   */
+  static getEstimateFromSimulation(simulation, extras) {
+    // Intentionally use the opposite FCP estimate. A pessimistic FCP is higher than equal to an
+    // optimistic FCP, which means potentially more tasks are excluded from the
+    // CumulativeLongQueuingDelay computation. So a more pessimistic FCP gives a more optimistic
+    // CumulativeLongQueuingDelay for the same work.
+    const fcpTimeInMs = extras.optimistic
+      ? extras.fcpResult.pessimisticEstimate.timeInMs
+      : extras.fcpResult.optimisticEstimate.timeInMs;
+
+    // Similarly, we always have pessimistic TTI >= optimistic TTI. Therefore, picking optimistic
+    // TTI means our window of interest is smaller and thus potentially more tasks are excluded from
+    // CumulativeLongQueuingDelay computation, yielding a lower (more optimistic)
+    // CumulativeLongQueuingDelay value for the same work.
+    const interactiveTimeMs = extras.optimistic
+      ? extras.interactiveResult.optimisticEstimate.timeInMs
+      : extras.interactiveResult.pessimisticEstimate.timeInMs;
+
+    // Require here to resolve circular dependency.
+    const CumulativeLongQueuingDelay = require('./cumulative-long-queuing-delay.js');
+    const minDurationMs = CumulativeLongQueuingDelay.LONG_QUEUING_DELAY_THRESHOLD;
+
+    const events = LanternCumulativeLongQueuingDelay.getTopLevelEvents(
+      simulation.nodeTimings,
+      minDurationMs
+    );
+
+    return {
+      timeInMs: CumulativeLongQueuingDelay.calculateSumOfLongQueuingDelay(
+        events,
+        fcpTimeInMs,
+        interactiveTimeMs
+      ),
+      nodeTimings: simulation.nodeTimings,
+    };
+  }
+
+  /**
+   * @param {LH.Artifacts.MetricComputationDataInput} data
+   * @param {LH.Audit.Context} context
+   * @return {Promise<LH.Artifacts.LanternMetric>}
+   */
+  static async compute_(data, context) {
+    const fcpResult = await LanternFirstContentfulPaint.request(data, context);
+    const interactiveResult = await LanternInteractive.request(data, context);
+    return this.computeMetricWithGraphs(data, context, {fcpResult, interactiveResult});
+  }
+
+  /**
+   * @param {LH.Gatherer.Simulation.Result['nodeTimings']} nodeTimings
+   * @param {number} minDurationMs
+   */
+  static getTopLevelEvents(nodeTimings, minDurationMs) {
+    /** @type {Array<{start: number, end: number, duration: number}>}
+     */
+    const events = [];
+
+    for (const [node, timing] of nodeTimings.entries()) {
+      if (node.type !== BaseNode.TYPES.CPU) continue;
+      // Filtering out events below minimum duration.
+      if (timing.duration < minDurationMs) continue;
+
+      events.push({
+        start: timing.startTime,
+        end: timing.endTime,
+        duration: timing.duration,
+      });
+    }
+
+    return events;
+  }
+}
+
+module.exports = makeComputedArtifact(LanternCumulativeLongQueuingDelay);
diff --git a/lighthouse-core/config/default-config.js b/lighthouse-core/config/default-config.js
index 33ac027e8e01..15916dda5d7f 100644
--- a/lighthouse-core/config/default-config.js
+++ b/lighthouse-core/config/default-config.js
@@ -170,6 +170,7 @@ const defaultConfig = {
     'screenshot-thumbnails',
     'final-screenshot',
     'metrics/estimated-input-latency',
+    'metrics/cumulative-long-queuing-delay',
     'metrics/max-potential-fid',
     'errors-in-console',
     'time-to-first-byte',
@@ -366,7 +367,7 @@ const defaultConfig = {
         {id: 'first-cpu-idle', weight: 2, group: 'metrics'},
         {id: 'max-potential-fid', weight: 0, group: 'metrics'},
         {id: 'estimated-input-latency', weight: 0}, // intentionally left out of metrics so it won't be displayed
-
+        {id: 'cumulative-long-queuing-delay', weight: 0}, // intentionally left out of metrics so it won't be displayed
         {id: 'render-blocking-resources', weight: 0, group: 'load-opportunities'},
         {id: 'uses-responsive-images', weight: 0, group: 'load-opportunities'},
         {id: 'offscreen-images', weight: 0, group: 'load-opportunities'},
diff --git a/lighthouse-core/test/audits/__snapshots__/metrics-test.js.snap b/lighthouse-core/test/audits/__snapshots__/metrics-test.js.snap
index 0807e76b83cc..685d98388384 100644
--- a/lighthouse-core/test/audits/__snapshots__/metrics-test.js.snap
+++ b/lighthouse-core/test/audits/__snapshots__/metrics-test.js.snap
@@ -2,6 +2,7 @@
 
 exports[`Performance: metrics evaluates valid input correctly 1`] = `
 Object {
+  "cumulativeLongQueuingDelay": 748,
   "estimatedInputLatency": 78,
   "estimatedInputLatencyTs": undefined,
   "firstCPUIdle": 3351,
diff --git a/lighthouse-core/test/audits/metrics/cumulative-long-queuing-delay-test.js b/lighthouse-core/test/audits/metrics/cumulative-long-queuing-delay-test.js
new file mode 100644
index 000000000000..160322069358
--- /dev/null
+++ b/lighthouse-core/test/audits/metrics/cumulative-long-queuing-delay-test.js
@@ -0,0 +1,32 @@
+/**
+ * @license Copyright 2019 Google Inc. All Rights Reserved.
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
+ */
+'use strict';
+
+const cLQDAudit = require('../../../audits/metrics/cumulative-long-queuing-delay.js');
+const options = cLQDAudit.defaultOptions;
+
+const pwaTrace = require('../../fixtures/traces/progressive-app-m60.json');
+
+function generateArtifactsWithTrace(trace) {
+  return {
+    traces: {[cLQDAudit.DEFAULT_PASS]: trace},
+    devtoolsLogs: {[cLQDAudit.DEFAULT_PASS]: []},
+  };
+}
+/* eslint-env jest */
+
+describe('Performance: cumulative-long-queuing-delay audit', () => {
+  it('evaluates cumulative long queuing delay metric properly', async () => {
+    const artifacts = generateArtifactsWithTrace(pwaTrace);
+    const settings = {throttlingMethod: 'provided'};
+    const context = {options, settings, computedCache: new Map()};
+    const output = await cLQDAudit.audit(artifacts, context);
+
+    expect(output.numericValue).toBeCloseTo(48.3, 1);
+    expect(output.score).toBe(1);
+    expect(output.displayValue).toBeDisplayString('50\xa0ms');
+  });
+});
diff --git a/lighthouse-core/test/computed/metrics/cumulative-long-queuing-delay-test.js b/lighthouse-core/test/computed/metrics/cumulative-long-queuing-delay-test.js
new file mode 100644
index 000000000000..8b02ada00c13
--- /dev/null
+++ b/lighthouse-core/test/computed/metrics/cumulative-long-queuing-delay-test.js
@@ -0,0 +1,115 @@
+/**
+ * @license Copyright 2019 Google Inc. All Rights Reserved.
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
+ */
+'use strict';
+
+const CumulativeLongQueuingDelay =
+    require('../../../computed/metrics/cumulative-long-queuing-delay.js');
+const trace = require('../../fixtures/traces/progressive-app-m60.json');
+const devtoolsLog = require('../../fixtures/traces/progressive-app-m60.devtools.log.json');
+
+/* eslint-env jest */
+
+describe('Metrics: CumulativeLongQueuingDelay', () => {
+  it('should compute a simulated value', async () => {
+    const settings = {throttlingMethod: 'simulate'};
+    const context = {settings, computedCache: new Map()};
+    const result = await CumulativeLongQueuingDelay.request(
+      {trace, devtoolsLog, settings},
+      context
+    );
+
+    expect({
+      timing: Math.round(result.timing),
+      optimistic: Math.round(result.optimisticEstimate.timeInMs),
+      pessimistic: Math.round(result.pessimisticEstimate.timeInMs),
+    }).toMatchInlineSnapshot(`
+Object {
+  "optimistic": 719,
+  "pessimistic": 777,
+  "timing": 748,
+}
+`);
+  });
+
+  it('should compute an observed value', async () => {
+    const settings = {throttlingMethod: 'provided'};
+    const context = {settings, computedCache: new Map()};
+    const result = await CumulativeLongQueuingDelay.request(
+      {trace, devtoolsLog, settings},
+      context
+    );
+    expect(result.timing).toBeCloseTo(48.3, 1);
+  });
+
+  describe('#calculateSumOfLongQueuingDelay', () => {
+    it('reports 0 when no task is longer than 50ms', () => {
+      const events = [
+        {start: 1000, end: 1050, duration: 50},
+        {start: 2000, end: 2010, duration: 10},
+      ];
+
+      const fcpTimeMs = 500;
+      const interactiveTimeMs = 4000;
+
+      expect(CumulativeLongQueuingDelay.calculateSumOfLongQueuingDelay(
+        events,
+        fcpTimeMs,
+        interactiveTimeMs
+      )).toBe(0);
+    });
+
+    it('only looks at tasks within FMP and TTI', () => {
+      const events = [
+        {start: 1000, end: 1060, duration: 60},
+        {start: 2000, end: 2100, duration: 100},
+        {start: 2300, end: 2450, duration: 150},
+        {start: 2600, end: 2800, duration: 200},
+      ];
+
+      const fcpTimeMs = 1500;
+      const interactiveTimeMs = 2500;
+
+      expect(CumulativeLongQueuingDelay.calculateSumOfLongQueuingDelay(
+        events,
+        fcpTimeMs,
+        interactiveTimeMs
+      )).toBe(150);
+    });
+
+    it('clips queuing delay regions properly', () => {
+      const fcpTimeMs = 1050;
+      const interactiveTimeMs = 2050;
+
+      const events = [
+        {start: 1000, end: 1110, duration: 110}, // Contributes 10ms.
+        {start: 2000, end: 2200, duration: 200}, // Contributes 50ms.
+      ];
+
+      expect(CumulativeLongQueuingDelay.calculateSumOfLongQueuingDelay(
+        events,
+        fcpTimeMs,
+        interactiveTimeMs
+      )).toBe(60);
+    });
+
+    // This can happen in the lantern metric case, where we use the optimistic
+    // TTI and pessimistic FCP.
+    it('returns 0 if interactiveTime is earlier than FCP', () => {
+      const fcpTimeMs = 2050;
+      const interactiveTimeMs = 1050;
+
+      const events = [
+        {start: 500, end: 3000, duration: 2500},
+      ];
+
+      expect(CumulativeLongQueuingDelay.calculateSumOfLongQueuingDelay(
+        events,
+        fcpTimeMs,
+        interactiveTimeMs
+      )).toBe(0);
+    });
+  });
+});
diff --git a/lighthouse-core/test/results/sample_v2.json b/lighthouse-core/test/results/sample_v2.json
index 76532a9e9b2a..bfb2a297b9b2 100644
--- a/lighthouse-core/test/results/sample_v2.json
+++ b/lighthouse-core/test/results/sample_v2.json
@@ -191,6 +191,15 @@
       "numericValue": 16,
       "displayValue": "20 ms"
     },
+    "cumulative-long-queuing-delay": {
+      "id": "cumulative-long-queuing-delay",
+      "title": "Cumulative Long Queuing Delay",
+      "description": "[Experimental metric] Total time period between FCP and Time to Interactive during which queuing time for any input event would be higher than 50ms.",
+      "score": 1,
+      "scoreDisplayMode": "numeric",
+      "numericValue": 116.79800000000023,
+      "displayValue": "120 ms"
+    },
     "max-potential-fid": {
       "id": "max-potential-fid",
       "title": "Max Potential First Input Delay",
@@ -1248,6 +1257,7 @@
             "speedIndex": 4417,
             "speedIndexTs": 185607736912,
             "estimatedInputLatency": 16,
+            "cumulativeLongQueuingDelay": 117,
             "observedNavigationStart": 0,
             "observedNavigationStartTs": 185603319912,
             "observedFirstPaint": 3969,
@@ -3360,6 +3370,10 @@
           "id": "estimated-input-latency",
           "weight": 0
         },
+        {
+          "id": "cumulative-long-queuing-delay",
+          "weight": 0
+        },
         {
           "id": "render-blocking-resources",
           "weight": 0,
@@ -4216,6 +4230,24 @@
         "duration": 100,
         "entryType": "measure"
       },
+      {
+        "startTime": 0,
+        "name": "lh:audit:cumulative-long-queuing-delay",
+        "duration": 100,
+        "entryType": "measure"
+      },
+      {
+        "startTime": 0,
+        "name": "lh:computed:CumulativeLongQueuingDelay",
+        "duration": 100,
+        "entryType": "measure"
+      },
+      {
+        "startTime": 0,
+        "name": "lh:computed:Interactive",
+        "duration": 100,
+        "entryType": "measure"
+      },
       {
         "startTime": 0,
         "name": "lh:audit:max-potential-fid",
diff --git a/proto/sample_v2_round_trip.json b/proto/sample_v2_round_trip.json
index f0f16a4de298..5e0e3279fa0f 100644
--- a/proto/sample_v2_round_trip.json
+++ b/proto/sample_v2_round_trip.json
@@ -377,6 +377,15 @@
             "scoreDisplayMode": "informative",
             "title": "Minimize Critical Requests Depth"
         },
+        "cumulative-long-queuing-delay": {
+            "description": "[Experimental metric] Total time period between FCP and Time to Interactive during which queuing time for any input event would be higher than 50ms.",
+            "displayValue": "120\u00a0ms",
+            "id": "cumulative-long-queuing-delay",
+            "numericValue": 116.79800000000023,
+            "score": 1.0,
+            "scoreDisplayMode": "numeric",
+            "title": "Cumulative Long Queuing Delay"
+        },
         "custom-controls-labels": {
             "description": "Custom interactive controls have associated labels, provided by aria-label or aria-labelledby. [Learn more](https://developers.google.com/web/fundamentals/accessibility/how-to-review#try_it_with_a_screen_reader).",
             "id": "custom-controls-labels",
@@ -1484,6 +1493,7 @@
             "details": {
                 "items": [
                     {
+                        "cumulativeLongQueuingDelay": 117.0,
                         "estimatedInputLatency": 16.0,
                         "firstCPUIdle": 4927.0,
                         "firstCPUIdleTs": 185608247190.0,
@@ -3489,6 +3499,10 @@
                     "id": "estimated-input-latency",
                     "weight": 0.0
                 },
+                {
+                    "id": "cumulative-long-queuing-delay",
+                    "weight": 0.0
+                },
                 {
                     "group": "load-opportunities",
                     "id": "render-blocking-resources",
@@ -4112,6 +4126,24 @@
                 "name": "lh:computed:EstimatedInputLatency",
                 "startTime": 0.0
             },
+            {
+                "duration": 100.0,
+                "entryType": "measure",
+                "name": "lh:audit:cumulative-long-queuing-delay",
+                "startTime": 0.0
+            },
+            {
+                "duration": 100.0,
+                "entryType": "measure",
+                "name": "lh:computed:CumulativeLongQueuingDelay",
+                "startTime": 0.0
+            },
+            {
+                "duration": 100.0,
+                "entryType": "measure",
+                "name": "lh:computed:Interactive",
+                "startTime": 0.0
+            },
             {
                 "duration": 100.0,
                 "entryType": "measure",

From 43896afb37785c9cb9a9a3bd88e8841d8e729d15 Mon Sep 17 00:00:00 2001
From: Paul Irish <paul.irish@gmail.com>
Date: Wed, 5 Jun 2019 02:12:41 +0200
Subject: [PATCH 012/110] core(perf): speed up tap-target's isVisible() (#9056)

---
 .../test/fixtures/seo/seo-tap-targets.html    | 18 ++++++++++
 .../test/smokehouse/seo/expectations.js       | 33 +++++++++++++++++++
 .../gather/gatherers/seo/tap-targets.js       | 32 ++----------------
 lighthouse-core/lib/page-functions.js         |  6 ++--
 4 files changed, 57 insertions(+), 32 deletions(-)

diff --git a/lighthouse-cli/test/fixtures/seo/seo-tap-targets.html b/lighthouse-cli/test/fixtures/seo/seo-tap-targets.html
index 9f76e82d8a12..25bd225636c0 100644
--- a/lighthouse-cli/test/fixtures/seo/seo-tap-targets.html
+++ b/lighthouse-cli/test/fixtures/seo/seo-tap-targets.html
@@ -159,6 +159,24 @@ <h1>SEO Tap targets</h1>
 
     <br/><br/>
 
+    <!-- even if a tap target's size is 0x0px it can still fail if overflowing content is visible -->
+    <div>
+      <a
+        data-gathered-target="zero-width-tap-target-with-overflowing-child-content"
+        style="display: block; width: 0; white-space: nowrap">
+        <!-- TODO: having the span should not be necessary to cause a failure here, but
+             right now we don't try to get the client rects of children that are text nodes -->
+        <span style="display: inline-block; width: 110px; height: 18px">zero width target</span>
+      </a>
+      <a
+        data-gathered-target="passing-tap-target-next-to-zero-width-target"
+        style="display: block; width: 110px; height: 100px;background: #aaa;">
+        passing target
+      </a>
+    </div>
+
+    <br/><br/>
+
     <!-- Should not fail if the two links have the same link target -->
     <div>
       <a
diff --git a/lighthouse-cli/test/smokehouse/seo/expectations.js b/lighthouse-cli/test/smokehouse/seo/expectations.js
index a913495e746b..f5b9a7b182f0 100644
--- a/lighthouse-cli/test/smokehouse/seo/expectations.js
+++ b/lighthouse-cli/test/smokehouse/seo/expectations.js
@@ -62,6 +62,13 @@ const expectedGatheredTapTargets = [
   {
     snippet: /large-enough-tap-target-next-to-too-small-tap-target/,
   },
+  {
+    snippet: /zero-width-tap-target-with-overflowing-child-content/,
+    shouldFail: true,
+  },
+  {
+    snippet: /passing-tap-target-next-to-zero-width-target/,
+  },
   {
     snippet: /links-with-same-link-target-1/,
   },
@@ -251,6 +258,30 @@ module.exports = [
           })(),
           details: {
             items: [
+              {
+                'tapTarget': {
+                  'type': 'node',
+                  /* eslint-disable max-len */
+                  'snippet': '<a data-gathered-target="zero-width-tap-target-with-overflowing-child-content" style="display: block; width: 0; white-space: nowrap">\n        <!-- TODO: having the span should not be necessary to cause a failure here, but\n             right now we don\'t try to get the client rects of children that …',
+                  'path': '2,HTML,1,BODY,14,DIV,0,A',
+                  'selector': 'body > div > a',
+                  'nodeLabel': 'zero width target',
+                },
+                'overlappingTarget': {
+                  'type': 'node',
+                  /* eslint-disable max-len */
+                  'snippet': '<a data-gathered-target="passing-tap-target-next-to-zero-width-target" style="display: block; width: 110px; height: 100px;background: #aaa;">\n        passing target\n      </a>',
+                  'path': '2,HTML,1,BODY,14,DIV,1,A',
+                  'selector': 'body > div > a',
+                  'nodeLabel': 'passing target',
+                },
+                'tapTargetScore': 864,
+                'overlappingTargetScore': 720,
+                'overlapScoreRatio': 0.8333333333333334,
+                'size': '110x18',
+                'width': 110,
+                'height': 18,
+              },
               {
                 'tapTarget': {
                   'type': 'node',
@@ -276,11 +307,13 @@ module.exports = [
                   'type': 'node',
                   'path': '2,HTML,1,BODY,3,DIV,24,A',
                   'selector': 'body > div > a',
+                  'nodeLabel': 'left',
                 },
                 'overlappingTarget': {
                   'type': 'node',
                   'path': '2,HTML,1,BODY,3,DIV,25,A',
                   'selector': 'body > div > a',
+                  'nodeLabel': 'right',
                 },
                 'tapTargetScore': 1920,
                 'overlappingTargetScore': 560,
diff --git a/lighthouse-core/gather/gatherers/seo/tap-targets.js b/lighthouse-core/gather/gatherers/seo/tap-targets.js
index bd763492a96a..4682361378da 100644
--- a/lighthouse-core/gather/gatherers/seo/tap-targets.js
+++ b/lighthouse-core/gather/gatherers/seo/tap-targets.js
@@ -37,38 +37,12 @@ const TARGET_SELECTORS = [
 const tapTargetsSelector = TARGET_SELECTORS.join(',');
 
 /**
- * @param {Element} element
+ * @param {HTMLElement} element
  * @returns {boolean}
  */
 /* istanbul ignore next */
 function elementIsVisible(element) {
-  const {overflowX, overflowY, display, visibility} = getComputedStyle(element);
-
-  if (
-    display === 'none' ||
-    (visibility === 'collapse' && ['TR', 'TBODY', 'COL', 'COLGROUP'].includes(element.tagName))
-  ) {
-    // Element not displayed
-    return false;
-  }
-
-  // only for block and inline-block, since clientWidth/Height are always 0 for inline elements
-  if (display === 'block' || display === 'inline-block') {
-    // if height/width is 0 and no overflow in that direction then
-    // there's no content that the user can see and tap on
-    if ((element.clientWidth === 0 && overflowX === 'hidden') ||
-        (element.clientHeight === 0 && overflowY === 'hidden')) {
-      return false;
-    }
-  }
-
-  const parent = element.parentElement;
-  if (parent && parent.tagName !== 'BODY') {
-    // if a parent is invisible then the current element is also invisible
-    return elementIsVisible(parent);
-  }
-
-  return true;
+  return !!(element.offsetWidth || element.offsetHeight || element.getClientRects().length);
 }
 
 /**
@@ -238,7 +212,7 @@ function gatherTapTargets() {
   // Capture element positions relative to the top of the page
   window.scrollTo(0, 0);
 
-  /** @type {Element[]} */
+  /** @type {HTMLElement[]} */
   // @ts-ignore - getElementsInDocument put into scope via stringification
   const tapTargetElements = getElementsInDocument(tapTargetsSelector);
 
diff --git a/lighthouse-core/lib/page-functions.js b/lighthouse-core/lib/page-functions.js
index 3622f35b7c0f..770c0c855fc5 100644
--- a/lighthouse-core/lib/page-functions.js
+++ b/lighthouse-core/lib/page-functions.js
@@ -80,15 +80,15 @@ function checkTimeSinceLastLongTask() {
 /**
  * @param {string=} selector Optional simple CSS selector to filter nodes on.
  *     Combinators are not supported.
- * @return {Array<Element>}
+ * @return {Array<HTMLElement>}
  */
 /* istanbul ignore next */
 function getElementsInDocument(selector) {
   const realMatchesFn = window.__ElementMatches || window.Element.prototype.matches;
-  /** @type {Array<Element>} */
+  /** @type {Array<HTMLElement>} */
   const results = [];
 
-  /** @param {NodeListOf<Element>} nodes */
+  /** @param {NodeListOf<HTMLElement>} nodes */
   const _findAllElements = nodes => {
     for (let i = 0, el; el = nodes[i]; ++i) {
       if (!selector || realMatchesFn.call(el, selector)) {

From 9f805249c2a019271fb19c0d8e68db0d93fc540a Mon Sep 17 00:00:00 2001
From: Patrick Hulce <patrick.hulce@gmail.com>
Date: Tue, 14 May 2019 17:27:21 -0500
Subject: [PATCH 013/110] core(tracehouse): move files to lib/tracehouse/

---
 lighthouse-core/{computed => lib/tracehouse}/main-thread-tasks.js | 0
 lighthouse-core/lib/{ => tracehouse}/task-groups.js               | 0
 lighthouse-core/{computed => lib/tracehouse}/trace-of-tab.js      | 0
 lighthouse-core/lib/{traces => tracehouse}/tracing-processor.js   | 0
 .../test/{computed => lib/tracehouse}/main-thread-tasks-test.js   | 0
 .../test/{computed => lib/tracehouse}/trace-of-tab-test.js        | 0
 .../test/lib/{traces => tracehouse}/tracing-processor-test.js     | 0
 7 files changed, 0 insertions(+), 0 deletions(-)
 rename lighthouse-core/{computed => lib/tracehouse}/main-thread-tasks.js (100%)
 rename lighthouse-core/lib/{ => tracehouse}/task-groups.js (100%)
 rename lighthouse-core/{computed => lib/tracehouse}/trace-of-tab.js (100%)
 rename lighthouse-core/lib/{traces => tracehouse}/tracing-processor.js (100%)
 rename lighthouse-core/test/{computed => lib/tracehouse}/main-thread-tasks-test.js (100%)
 rename lighthouse-core/test/{computed => lib/tracehouse}/trace-of-tab-test.js (100%)
 rename lighthouse-core/test/lib/{traces => tracehouse}/tracing-processor-test.js (100%)

diff --git a/lighthouse-core/computed/main-thread-tasks.js b/lighthouse-core/lib/tracehouse/main-thread-tasks.js
similarity index 100%
rename from lighthouse-core/computed/main-thread-tasks.js
rename to lighthouse-core/lib/tracehouse/main-thread-tasks.js
diff --git a/lighthouse-core/lib/task-groups.js b/lighthouse-core/lib/tracehouse/task-groups.js
similarity index 100%
rename from lighthouse-core/lib/task-groups.js
rename to lighthouse-core/lib/tracehouse/task-groups.js
diff --git a/lighthouse-core/computed/trace-of-tab.js b/lighthouse-core/lib/tracehouse/trace-of-tab.js
similarity index 100%
rename from lighthouse-core/computed/trace-of-tab.js
rename to lighthouse-core/lib/tracehouse/trace-of-tab.js
diff --git a/lighthouse-core/lib/traces/tracing-processor.js b/lighthouse-core/lib/tracehouse/tracing-processor.js
similarity index 100%
rename from lighthouse-core/lib/traces/tracing-processor.js
rename to lighthouse-core/lib/tracehouse/tracing-processor.js
diff --git a/lighthouse-core/test/computed/main-thread-tasks-test.js b/lighthouse-core/test/lib/tracehouse/main-thread-tasks-test.js
similarity index 100%
rename from lighthouse-core/test/computed/main-thread-tasks-test.js
rename to lighthouse-core/test/lib/tracehouse/main-thread-tasks-test.js
diff --git a/lighthouse-core/test/computed/trace-of-tab-test.js b/lighthouse-core/test/lib/tracehouse/trace-of-tab-test.js
similarity index 100%
rename from lighthouse-core/test/computed/trace-of-tab-test.js
rename to lighthouse-core/test/lib/tracehouse/trace-of-tab-test.js
diff --git a/lighthouse-core/test/lib/traces/tracing-processor-test.js b/lighthouse-core/test/lib/tracehouse/tracing-processor-test.js
similarity index 100%
rename from lighthouse-core/test/lib/traces/tracing-processor-test.js
rename to lighthouse-core/test/lib/tracehouse/tracing-processor-test.js

From 1af2edd528a474f882f8b48ed6a895337e748be8 Mon Sep 17 00:00:00 2001
From: Patrick Hulce <patrick.hulce@gmail.com>
Date: Fri, 31 May 2019 16:27:40 -0500
Subject: [PATCH 014/110] core(tracehouse): modify files for move to tracehouse

---
 docs/architecture.md                          |   2 +-
 lighthouse-core/audits/bootup-time.js         |   2 +-
 .../audits/mainthread-work-breakdown.js       |   4 +-
 lighthouse-core/computed/main-thread-tasks.js |  24 ++++
 .../metrics/estimated-input-latency.js        |   2 +-
 .../computed/metrics/first-cpu-idle.js        |   2 +-
 .../computed/metrics/interactive.js           |   2 +-
 .../computed/metrics/max-potential-fid.js     |   2 +-
 lighthouse-core/computed/metrics/metric.js    |   2 +-
 .../computed/page-dependency-graph.js         |   2 +-
 lighthouse-core/computed/trace-of-tab.js      |  23 ++++
 lighthouse-core/lib/minify-trace.js           |   6 +-
 .../lib/tracehouse/main-thread-tasks.js       |  18 +--
 .../lib/tracehouse/trace-of-tab.js            |  13 +-
 .../scripts/lantern/minify-trace.js           |   1 +
 .../uses-long-cache-ttl-test.js               |   6 +-
 .../test/computed/main-thread-tasks-test.js   |  19 +++
 .../computed/metrics/first-cpu-idle-test.js   |   2 +-
 .../test/computed/trace-of-tab-test.js        | 125 ++++++++++++++++++
 .../lib/tracehouse/main-thread-tasks-test.js  |  42 +++---
 .../test/lib/tracehouse/trace-of-tab-test.js  |  72 +++++-----
 .../lib/tracehouse/tracing-processor-test.js  |  12 +-
 types/artifacts.d.ts                          |   2 +-
 23 files changed, 280 insertions(+), 105 deletions(-)
 create mode 100644 lighthouse-core/computed/main-thread-tasks.js
 create mode 100644 lighthouse-core/computed/trace-of-tab.js
 create mode 100644 lighthouse-core/test/computed/main-thread-tasks-test.js
 create mode 100644 lighthouse-core/test/computed/trace-of-tab-test.js

diff --git a/docs/architecture.md b/docs/architecture.md
index 453a8b230d09..a3ed283dfb1d 100644
--- a/docs/architecture.md
+++ b/docs/architecture.md
@@ -39,7 +39,7 @@ driver.sendCommand('Security.enable');
 
 ## Understanding a Trace
 
-`lighthouse-core/computed/trace-of-tab.js` and `lighthouse-core/lib/traces/tracing-processor.js` provide the core transformation of a trace into more meaningful objects. Each raw trace event has a monotonically increasing timestamp in microseconds, a thread ID, a process ID, a duration in microseconds (potentially), and other applicable metadata properties such as the event type, the task name, the frame, etc. [Learn more about trace events](https://docs.google.com/document/d/1CvAClvFfyA5R-PhYUmn5OOQtYMH4h6I0nSsKchNAySU/preview).
+`lighthouse-core/lib/tracehouse/trace-of-tab.js` and `lighthouse-core/lib/tracehouse/tracing-processor.js` provide the core transformation of a trace into more meaningful objects. Each raw trace event has a monotonically increasing timestamp in microseconds, a thread ID, a process ID, a duration in microseconds (potentially), and other applicable metadata properties such as the event type, the task name, the frame, etc. [Learn more about trace events](https://docs.google.com/document/d/1CvAClvFfyA5R-PhYUmn5OOQtYMH4h6I0nSsKchNAySU/preview).
 
 ### Example Trace Event
 ```js
diff --git a/lighthouse-core/audits/bootup-time.js b/lighthouse-core/audits/bootup-time.js
index a8be895b2bad..73a7880a2d59 100644
--- a/lighthouse-core/audits/bootup-time.js
+++ b/lighthouse-core/audits/bootup-time.js
@@ -7,7 +7,7 @@
 
 const Audit = require('./audit.js');
 const NetworkRequest = require('../lib/network-request.js');
-const {taskGroups} = require('../lib/task-groups.js');
+const {taskGroups} = require('../lib/tracehouse/task-groups.js');
 const i18n = require('../lib/i18n/i18n.js');
 const NetworkRecords = require('../computed/network-records.js');
 const MainThreadTasks = require('../computed/main-thread-tasks.js');
diff --git a/lighthouse-core/audits/mainthread-work-breakdown.js b/lighthouse-core/audits/mainthread-work-breakdown.js
index c7a67c64341d..c16b88585fa8 100644
--- a/lighthouse-core/audits/mainthread-work-breakdown.js
+++ b/lighthouse-core/audits/mainthread-work-breakdown.js
@@ -11,7 +11,7 @@
 'use strict';
 
 const Audit = require('./audit.js');
-const {taskGroups} = require('../lib/task-groups.js');
+const {taskGroups} = require('../lib/tracehouse/task-groups.js');
 const i18n = require('../lib/i18n/i18n.js');
 const MainThreadTasks = require('../computed/main-thread-tasks.js');
 
@@ -29,7 +29,7 @@ const UIStrings = {
 
 const str_ = i18n.createMessageInstanceIdFn(__filename, UIStrings);
 
-/** @typedef {import('../lib/task-groups.js').TaskGroupIds} TaskGroupIds */
+/** @typedef {import('../lib/tracehouse/task-groups.js').TaskGroupIds} TaskGroupIds */
 
 class MainThreadWorkBreakdown extends Audit {
   /**
diff --git a/lighthouse-core/computed/main-thread-tasks.js b/lighthouse-core/computed/main-thread-tasks.js
new file mode 100644
index 000000000000..530aa64fc063
--- /dev/null
+++ b/lighthouse-core/computed/main-thread-tasks.js
@@ -0,0 +1,24 @@
+/**
+ * @license Copyright 2019 Google Inc. All Rights Reserved.
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
+ */
+'use strict';
+
+const makeComputedArtifact = require('./computed-artifact.js');
+const MainThreadTasks_ = require('../lib/tracehouse/main-thread-tasks.js');
+const TraceOfTab = require('./trace-of-tab.js');
+
+class MainThreadTasks {
+  /**
+   * @param {LH.Trace} trace
+   * @param {LH.Audit.Context} context
+   * @return {Promise<Array<LH.Artifacts.TaskNode>>}
+   */
+  static async compute_(trace, context) {
+    const {mainThreadEvents, timestamps} = await TraceOfTab.request(trace, context);
+    return MainThreadTasks_.getMainThreadTasks(mainThreadEvents, timestamps.traceEnd);
+  }
+}
+
+module.exports = makeComputedArtifact(MainThreadTasks);
diff --git a/lighthouse-core/computed/metrics/estimated-input-latency.js b/lighthouse-core/computed/metrics/estimated-input-latency.js
index 66ddd8a82d8a..a027667d9ee0 100644
--- a/lighthouse-core/computed/metrics/estimated-input-latency.js
+++ b/lighthouse-core/computed/metrics/estimated-input-latency.js
@@ -8,7 +8,7 @@
 const makeComputedArtifact = require('../computed-artifact.js');
 const ComputedMetric = require('./metric.js');
 const LHError = require('../../lib/lh-error.js');
-const TracingProcessor = require('../../lib/traces/tracing-processor.js');
+const TracingProcessor = require('../../lib/tracehouse/tracing-processor.js');
 const LanternEstimatedInputLatency = require('./lantern-estimated-input-latency.js');
 
 const ROLLING_WINDOW_SIZE = 5000;
diff --git a/lighthouse-core/computed/metrics/first-cpu-idle.js b/lighthouse-core/computed/metrics/first-cpu-idle.js
index 450dbe103ea9..202821e16568 100644
--- a/lighthouse-core/computed/metrics/first-cpu-idle.js
+++ b/lighthouse-core/computed/metrics/first-cpu-idle.js
@@ -7,7 +7,7 @@
 
 const makeComputedArtifact = require('../computed-artifact.js');
 const ComputedMetric = require('./metric.js');
-const TracingProcessor = require('../../lib/traces/tracing-processor.js');
+const TracingProcessor = require('../../lib/tracehouse/tracing-processor.js');
 const LHError = require('../../lib/lh-error.js');
 const LanternFirstCPUIdle = require('./lantern-first-cpu-idle.js');
 
diff --git a/lighthouse-core/computed/metrics/interactive.js b/lighthouse-core/computed/metrics/interactive.js
index 31ad39ae998b..cc7fbd05fcd5 100644
--- a/lighthouse-core/computed/metrics/interactive.js
+++ b/lighthouse-core/computed/metrics/interactive.js
@@ -10,7 +10,7 @@ const ComputedMetric = require('./metric.js');
 const LanternInteractive = require('./lantern-interactive.js');
 
 const NetworkRecorder = require('../../lib/network-recorder.js');
-const TracingProcessor = require('../../lib/traces/tracing-processor.js');
+const TracingProcessor = require('../../lib/tracehouse/tracing-processor.js');
 const LHError = require('../../lib/lh-error.js');
 
 const REQUIRED_QUIET_WINDOW = 5000;
diff --git a/lighthouse-core/computed/metrics/max-potential-fid.js b/lighthouse-core/computed/metrics/max-potential-fid.js
index 0a1ac316f0f4..6fed0414e5c1 100644
--- a/lighthouse-core/computed/metrics/max-potential-fid.js
+++ b/lighthouse-core/computed/metrics/max-potential-fid.js
@@ -9,7 +9,7 @@ const makeComputedArtifact = require('../computed-artifact.js');
 const MetricArtifact = require('./metric.js');
 const LanternMaxPotentialFID = require('./lantern-max-potential-fid.js');
 const LHError = require('../../lib/lh-error.js');
-const TracingProcessor = require('../../lib/traces/tracing-processor.js');
+const TracingProcessor = require('../../lib/tracehouse/tracing-processor.js');
 
 class MaxPotentialFID extends MetricArtifact {
   /**
diff --git a/lighthouse-core/computed/metrics/metric.js b/lighthouse-core/computed/metrics/metric.js
index 6dd4c3102725..1b2457ff083e 100644
--- a/lighthouse-core/computed/metrics/metric.js
+++ b/lighthouse-core/computed/metrics/metric.js
@@ -5,7 +5,7 @@
  */
 'use strict';
 
-const TracingProcessor = require('../../lib/traces/tracing-processor.js');
+const TracingProcessor = require('../../lib/tracehouse/tracing-processor.js');
 const TraceOfTab = require('../trace-of-tab.js');
 const NetworkRecords = require('../network-records.js');
 
diff --git a/lighthouse-core/computed/page-dependency-graph.js b/lighthouse-core/computed/page-dependency-graph.js
index 292eafbd8732..2f728eaf2ef5 100644
--- a/lighthouse-core/computed/page-dependency-graph.js
+++ b/lighthouse-core/computed/page-dependency-graph.js
@@ -9,7 +9,7 @@ const makeComputedArtifact = require('./computed-artifact.js');
 const NetworkNode = require('../lib/dependency-graph/network-node.js');
 const CPUNode = require('../lib/dependency-graph/cpu-node.js');
 const NetworkAnalyzer = require('../lib/dependency-graph/simulator/network-analyzer.js');
-const TracingProcessor = require('../lib/traces/tracing-processor.js');
+const TracingProcessor = require('../lib/tracehouse/tracing-processor.js');
 const NetworkRequest = require('../lib/network-request.js');
 const TraceOfTab = require('./trace-of-tab.js');
 const NetworkRecords = require('./network-records.js');
diff --git a/lighthouse-core/computed/trace-of-tab.js b/lighthouse-core/computed/trace-of-tab.js
new file mode 100644
index 000000000000..7aa3ee252867
--- /dev/null
+++ b/lighthouse-core/computed/trace-of-tab.js
@@ -0,0 +1,23 @@
+/**
+ * @license Copyright 2019 Google Inc. All Rights Reserved.
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
+ */
+'use strict';
+
+const makeComputedArtifact = require('./computed-artifact.js');
+const TraceOfTab_ = require('../lib/tracehouse/trace-of-tab.js');
+
+class TraceOfTab {
+  /**
+   * Finds key trace events, identifies main process/thread, and returns timings of trace events
+   * in milliseconds since navigation start in addition to the standard microsecond monotonic timestamps.
+   * @param {LH.Trace} trace
+   * @return {Promise<LH.Artifacts.TraceOfTab>}
+  */
+  static async compute_(trace) {
+    return TraceOfTab_.compute(trace);
+  }
+}
+
+module.exports = makeComputedArtifact(TraceOfTab);
diff --git a/lighthouse-core/lib/minify-trace.js b/lighthouse-core/lib/minify-trace.js
index c6610a760a9f..0ff5bd8f34d5 100644
--- a/lighthouse-core/lib/minify-trace.js
+++ b/lighthouse-core/lib/minify-trace.js
@@ -10,13 +10,13 @@
 /**
  * @fileoverview Minifies a trace by removing unnecessary events, throttling screenshots, etc.
  *  See the following files for necessary events:
- *    - lighthouse-core/computed/trace-of-tab.js
  *    - lighthouse-core/computed/page-dependency-graph.js
  *    - lighthouse-core/lib/dependency-graph/cpu-node.js
- *    - lighthouse-core/lib/traces/tracing-processor.js
+ *    - lighthouse-core/lib/tracehouse/trace-of-tab.js
+ *    - lighthouse-core/lib/tracehouse/tracing-processor.js
  */
 
-const TracingProcessor = require('./traces/tracing-processor.js');
+const TracingProcessor = require('./tracehouse/tracing-processor.js');
 
 const toplevelTaskNames = new Set([
   'RunTask', // m71+
diff --git a/lighthouse-core/lib/tracehouse/main-thread-tasks.js b/lighthouse-core/lib/tracehouse/main-thread-tasks.js
index f824bb44b553..e1c53205cf99 100644
--- a/lighthouse-core/lib/tracehouse/main-thread-tasks.js
+++ b/lighthouse-core/lib/tracehouse/main-thread-tasks.js
@@ -5,9 +5,7 @@
  */
 'use strict';
 
-const makeComputedArtifact = require('./computed-artifact.js');
-const {taskGroups, taskNameToGroup} = require('../lib/task-groups.js');
-const TraceOfTab = require('./trace-of-tab.js');
+const {taskGroups, taskNameToGroup} = require('./task-groups.js');
 
 /**
  * @fileoverview
@@ -26,7 +24,7 @@ const TraceOfTab = require('./trace-of-tab.js');
  * attributableURL for the script that was executing/forced this execution.
  */
 
-/** @typedef {import('../lib/task-groups.js').TaskGroup} TaskGroup */
+/** @typedef {import('./task-groups.js').TaskGroup} TaskGroup */
 
 /**
  * @typedef TaskNode
@@ -263,16 +261,6 @@ class MainThreadTasks {
 
     return tasks;
   }
-
-  /**
-   * @param {LH.Trace} trace
-   * @param {LH.Audit.Context} context
-   * @return {Promise<Array<TaskNode>>} networkRecords
-   */
-  static async compute_(trace, context) {
-    const {mainThreadEvents, timestamps} = await TraceOfTab.request(trace, context);
-    return MainThreadTasks.getMainThreadTasks(mainThreadEvents, timestamps.traceEnd);
-  }
 }
 
-module.exports = makeComputedArtifact(MainThreadTasks);
+module.exports = MainThreadTasks;
diff --git a/lighthouse-core/lib/tracehouse/trace-of-tab.js b/lighthouse-core/lib/tracehouse/trace-of-tab.js
index 284c6d9e6055..65cbc08de3de 100644
--- a/lighthouse-core/lib/tracehouse/trace-of-tab.js
+++ b/lighthouse-core/lib/tracehouse/trace-of-tab.js
@@ -16,11 +16,10 @@
  * 4. Return all those items in one handy bundle.
  */
 
-const makeComputedArtifact = require('./computed-artifact.js');
 const log = require('lighthouse-logger');
-const TracingProcessor = require('../lib/traces/tracing-processor.js');
-const LHError = require('../lib/lh-error.js');
-const Sentry = require('../lib/sentry.js');
+const TracingProcessor = require('./tracing-processor.js');
+const LHError = require('../lh-error.js');
+const Sentry = require('../sentry.js');
 
 const ACCEPTABLE_NAVIGATION_URL_REGEX = /^(chrome|https?):/;
 
@@ -69,9 +68,9 @@ class TraceOfTab {
    * Finds key trace events, identifies main process/thread, and returns timings of trace events
    * in milliseconds since navigation start in addition to the standard microsecond monotonic timestamps.
    * @param {LH.Trace} trace
-   * @return {Promise<LH.Artifacts.TraceOfTab>}
+   * @return {LH.Artifacts.TraceOfTab}
   */
-  static async compute_(trace) {
+  static compute(trace) {
     // Parse the trace for our key events and sort them by timestamp. Note: sort
     // *must* be stable to keep events correctly nested.
     const keyEvents = TraceOfTab.filteredStableSort(trace.traceEvents, e => {
@@ -189,4 +188,4 @@ class TraceOfTab {
   }
 }
 
-module.exports = makeComputedArtifact(TraceOfTab);
+module.exports = TraceOfTab;
diff --git a/lighthouse-core/scripts/lantern/minify-trace.js b/lighthouse-core/scripts/lantern/minify-trace.js
index 4f930158dbd1..2a9d74352c2e 100755
--- a/lighthouse-core/scripts/lantern/minify-trace.js
+++ b/lighthouse-core/scripts/lantern/minify-trace.js
@@ -8,6 +8,7 @@
 
 /* eslint-disable no-console */
 
+
 const fs = require('fs');
 const path = require('path');
 const {minifyTrace} = require('../../lib/minify-trace.js');
diff --git a/lighthouse-core/test/audits/byte-efficiency/uses-long-cache-ttl-test.js b/lighthouse-core/test/audits/byte-efficiency/uses-long-cache-ttl-test.js
index 6cf01b6a07d6..9012009970d3 100644
--- a/lighthouse-core/test/audits/byte-efficiency/uses-long-cache-ttl-test.js
+++ b/lighthouse-core/test/audits/byte-efficiency/uses-long-cache-ttl-test.js
@@ -93,7 +93,7 @@ describe('Cache headers audit', () => {
 
   it('detects low value expires headers', () => {
     const expiresIn = seconds => new Date(Date.now() + seconds * 1000).toGMTString();
-    const closeEnough = (actual, exp) => assert.ok(Math.abs(actual - exp) <= 1, 'invalid expires');
+    const closeEnough = (actual, exp) => assert.ok(Math.abs(actual - exp) <= 5, 'invalid expires');
 
     const networkRecords = [
       networkRecord({headers: {expires: expiresIn(86400 * 365)}}), // a year
@@ -132,9 +132,9 @@ describe('Cache headers audit', () => {
     return CacheHeadersAudit.audit(getArtifacts(networkRecords), context).then(result => {
       const items = result.extendedInfo.value.results;
       assert.equal(items.length, 2);
-      assert.ok(Math.abs(items[0].cacheLifetimeMs - 3600 * 1000) <= 1, 'invalid expires parsing');
+      assert.ok(Math.abs(items[0].cacheLifetimeMs - 3600 * 1000) <= 5, 'invalid expires parsing');
       assert.equal(Math.round(items[0].wastedBytes), 8000);
-      assert.ok(Math.abs(items[1].cacheLifetimeMs - 86400 * 1000) <= 1, 'invalid expires parsing');
+      assert.ok(Math.abs(items[1].cacheLifetimeMs - 86400 * 1000) <= 5, 'invalid expires parsing');
       assert.equal(Math.round(items[1].wastedBytes), 4000);
     });
   });
diff --git a/lighthouse-core/test/computed/main-thread-tasks-test.js b/lighthouse-core/test/computed/main-thread-tasks-test.js
new file mode 100644
index 000000000000..b3298709a4d3
--- /dev/null
+++ b/lighthouse-core/test/computed/main-thread-tasks-test.js
@@ -0,0 +1,19 @@
+/**
+ * @license Copyright 2019 Google Inc. All Rights Reserved.
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
+ */
+'use strict';
+
+/* eslint-env jest */
+
+const MainThreadTasks = require('../../computed/main-thread-tasks.js');
+const pwaTrace = require('../fixtures/traces/progressive-app-m60.json');
+
+describe('MainThreadTasksComputed', () => {
+  it('computes the artifact', async () => {
+    const context = {computedCache: new Map()};
+    const tasks = await MainThreadTasks.request(pwaTrace, context);
+    expect(tasks.length).toEqual(4784);
+  });
+});
diff --git a/lighthouse-core/test/computed/metrics/first-cpu-idle-test.js b/lighthouse-core/test/computed/metrics/first-cpu-idle-test.js
index 665aa40676aa..cfb21da04bff 100644
--- a/lighthouse-core/test/computed/metrics/first-cpu-idle-test.js
+++ b/lighthouse-core/test/computed/metrics/first-cpu-idle-test.js
@@ -6,7 +6,7 @@
 'use strict';
 
 const FirstCPUIdle = require('../../../computed/metrics/first-cpu-idle.js');
-const TracingProcessor = require('../../../lib/traces/tracing-processor.js');
+const TracingProcessor = require('../../../lib/tracehouse/tracing-processor.js');
 
 const tooShortTrace = require('../../fixtures/traces/progressive-app.json');
 const acceptableTrace = require('../../fixtures/traces/progressive-app-m60.json');
diff --git a/lighthouse-core/test/computed/trace-of-tab-test.js b/lighthouse-core/test/computed/trace-of-tab-test.js
new file mode 100644
index 000000000000..4c14d71cab83
--- /dev/null
+++ b/lighthouse-core/test/computed/trace-of-tab-test.js
@@ -0,0 +1,125 @@
+/**
+ * @license Copyright 2019 Google Inc. All Rights Reserved.
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
+ */
+'use strict';
+
+/* eslint-env jest */
+
+const TraceOfTab = require('../../computed/trace-of-tab.js');
+const pwaTrace = require('../fixtures/traces/progressive-app-m60.json');
+
+describe('TraceOfTabComputed', () => {
+  it('computes the artifact', async () => {
+    const context = {computedCache: new Map()};
+    const traceOfTab = await TraceOfTab.request(pwaTrace, context);
+
+    expect(traceOfTab.processEvents.length).toEqual(12865);
+    expect(traceOfTab.mainThreadEvents.length).toEqual(7629);
+
+    delete traceOfTab.processEvents;
+    delete traceOfTab.mainThreadEvents;
+
+    expect(traceOfTab).toEqual({
+      domContentLoadedEvt: {
+        args: {
+          frame: '0x25a638821e30',
+        },
+        cat: 'blink.user_timing,rail',
+        name: 'domContentLoadedEventEnd',
+        ph: 'R',
+        pid: 44277,
+        tid: 775,
+        ts: 225414732309,
+        tts: 924831,
+      },
+      firstContentfulPaintEvt: {
+        args: {
+          frame: '0x25a638821e30',
+        },
+        cat: 'loading,rail,devtools.timeline',
+        name: 'firstContentfulPaint',
+        ph: 'I',
+        pid: 44277,
+        s: 'p',
+        tid: 775,
+        ts: 225414670885,
+        tts: 866570,
+      },
+      firstMeaningfulPaintEvt: {
+        args: {
+          frame: '0x25a638821e30',
+        },
+        cat: 'loading,rail,devtools.timeline',
+        name: 'firstMeaningfulPaint',
+        ph: 'R',
+        pid: 44277,
+        tid: 775,
+        ts: 225414955343,
+        tts: 2676979,
+      },
+      firstPaintEvt: {
+        args: {
+          frame: '0x25a638821e30',
+        },
+        cat: 'loading,rail,devtools.timeline',
+        name: 'firstPaint',
+        ph: 'I',
+        pid: 44277,
+        s: 'p',
+        tid: 775,
+        ts: 225414670868,
+        tts: 866553,
+      },
+      fmpFellBack: false,
+      loadEvt: {
+        args: {
+          frame: '0x25a638821e30',
+        },
+        cat: 'blink.user_timing',
+        name: 'loadEventEnd',
+        ph: 'R',
+        pid: 44277,
+        tid: 775,
+        ts: 225416370913,
+        tts: 2369379,
+      },
+      mainFrameIds: {
+        frameId: '0x25a638821e30',
+        pid: 44277,
+        tid: 775,
+      },
+      navigationStartEvt: {
+        args: {
+          frame: '0x25a638821e30',
+        },
+        cat: 'blink.user_timing',
+        name: 'navigationStart',
+        ph: 'R',
+        pid: 44277,
+        tid: 775,
+        ts: 225414172015,
+        tts: 455539,
+      },
+      timestamps: {
+        domContentLoaded: 225414732309,
+        firstContentfulPaint: 225414670885,
+        firstMeaningfulPaint: 225414955343,
+        firstPaint: 225414670868,
+        load: 225416370913,
+        navigationStart: 225414172015,
+        traceEnd: 225426711887,
+      },
+      timings: {
+        domContentLoaded: 560.294,
+        firstContentfulPaint: 498.87,
+        firstMeaningfulPaint: 783.328,
+        firstPaint: 498.853,
+        load: 2198.898,
+        navigationStart: 0,
+        traceEnd: 12539.872,
+      },
+    });
+  });
+});
diff --git a/lighthouse-core/test/lib/tracehouse/main-thread-tasks-test.js b/lighthouse-core/test/lib/tracehouse/main-thread-tasks-test.js
index 42b17b5aa477..fbfdc5234c06 100644
--- a/lighthouse-core/test/lib/tracehouse/main-thread-tasks-test.js
+++ b/lighthouse-core/test/lib/tracehouse/main-thread-tasks-test.js
@@ -7,13 +7,14 @@
 
 /* eslint-env jest */
 
-const MainThreadTasks = require('../../computed/main-thread-tasks.js');
-const taskGroups = require('../../lib/task-groups.js').taskGroups;
-const pwaTrace = require('../fixtures/traces/progressive-app.json');
-const TracingProcessor = require('../../lib/traces/tracing-processor.js');
+const MainThreadTasks = require('../../../lib/tracehouse/main-thread-tasks.js');
+const TraceOfTab = require('../../../lib/tracehouse/trace-of-tab.js');
+const taskGroups = require('../../../lib/tracehouse/task-groups.js').taskGroups;
+const pwaTrace = require('../../fixtures/traces/progressive-app.json');
+const TracingProcessor = require('../../../lib/tracehouse/tracing-processor.js');
 const assert = require('assert');
 
-describe('MainResource computed artifact', () => {
+describe('Main Thread Tasks', () => {
   const pid = 1;
   const tid = 2;
   const frameId = 'BLAH';
@@ -29,9 +30,13 @@ describe('MainResource computed artifact', () => {
     ];
   });
 
-  it('should get all main thread tasks from a trace', async () => {
-    const context = {computedCache: new Map()};
-    const tasks = await MainThreadTasks.request({traceEvents: pwaTrace}, context);
+  function run(trace) {
+    const {mainThreadEvents, timestamps} = TraceOfTab.compute(trace);
+    return MainThreadTasks.getMainThreadTasks(mainThreadEvents, timestamps.traceEnd);
+  }
+
+  it('should get all main thread tasks from a trace', () => {
+    const tasks = run({traceEvents: pwaTrace});
     const toplevelTasks = tasks.filter(task => !task.parent);
     assert.equal(tasks.length, 2305);
     assert.equal(toplevelTasks.length, 296);
@@ -54,7 +59,7 @@ describe('MainResource computed artifact', () => {
     assert.equal(Math.round(totalTime), 396);
   });
 
-  it('should compute parent/child correctly', async () => {
+  it('should compute parent/child correctly', () => {
     /*
     An artistic rendering of the below trace:
     █████████████████████████████TaskA██████████████████████████████████████████████
@@ -71,8 +76,7 @@ describe('MainResource computed artifact', () => {
 
     traceEvents.forEach(evt => Object.assign(evt, {cat: 'devtools.timeline'}));
 
-    const context = {computedCache: new Map()};
-    const tasks = await MainThreadTasks.request({traceEvents}, context);
+    const tasks = run({traceEvents});
     assert.equal(tasks.length, 3);
 
     const taskA = tasks.find(task => task.event.name === 'TaskA');
@@ -105,7 +109,7 @@ describe('MainResource computed artifact', () => {
     });
   });
 
-  it('should compute attributableURLs correctly', async () => {
+  it('should compute attributableURLs correctly', () => {
     const baseTs = 1241250325;
     const url = s => ({args: {data: {url: s}}});
     const stackFrames = f => ({args: {data: {stackTrace: f.map(url => ({url}))}}});
@@ -131,8 +135,7 @@ describe('MainResource computed artifact', () => {
       evt.args = evt.args || args;
     });
 
-    const context = {computedCache: new Map()};
-    const tasks = await MainThreadTasks.request({traceEvents}, context);
+    const tasks = run({traceEvents});
     const taskA = tasks.find(task => task.event.name === 'TaskA');
     const taskB = tasks.find(task => task.event.name === 'TaskB');
     const taskC = tasks.find(task => task.event.name === 'EvaluateScript');
@@ -144,7 +147,7 @@ describe('MainResource computed artifact', () => {
     assert.deepStrictEqual(taskD.attributableURLs, ['urlB.1', 'urlB.2', 'urlC', 'urlD']);
   });
 
-  it('should handle the last trace event not ending', async () => {
+  it('should handle the last trace event not ending', () => {
     /*
     An artistic rendering of the below trace:
     █████████████████████████████TaskA████████████|
@@ -162,8 +165,7 @@ describe('MainResource computed artifact', () => {
 
     traceEvents.forEach(evt => Object.assign(evt, {cat: 'devtools.timeline'}));
 
-    const context = {computedCache: new Map()};
-    const tasks = await MainThreadTasks.request({traceEvents}, context);
+    const tasks = run({traceEvents});
     expect(tasks).toHaveLength(3);
 
     const taskA = tasks.find(task => task.event.name === 'TaskA');
@@ -223,7 +225,7 @@ describe('MainResource computed artifact', () => {
   ];
 
   for (const invalidEvents of invalidEventSets) {
-    it('should throw on invalid task input', async () => {
+    it('should throw on invalid task input', () => {
       const traceEvents = [
         ...boilerplateTrace,
         ...invalidEvents,
@@ -231,9 +233,7 @@ describe('MainResource computed artifact', () => {
 
       traceEvents.forEach(evt => Object.assign(evt, {cat: 'devtools.timeline'}));
 
-      const context = {computedCache: new Map()};
-      const promise = MainThreadTasks.request({traceEvents}, context);
-      await expect(promise).rejects.toBeTruthy();
+      expect(() => run({traceEvents})).toThrow();
     });
   }
 });
diff --git a/lighthouse-core/test/lib/tracehouse/trace-of-tab-test.js b/lighthouse-core/test/lib/tracehouse/trace-of-tab-test.js
index 9a2f829f59f2..a8fee73408fd 100644
--- a/lighthouse-core/test/lib/tracehouse/trace-of-tab-test.js
+++ b/lighthouse-core/test/lib/tracehouse/trace-of-tab-test.js
@@ -5,23 +5,23 @@
  */
 'use strict';
 
-const TraceOfTab = require('../../computed/trace-of-tab.js');
+const TraceOfTab = require('../../../lib/tracehouse/trace-of-tab.js');
 
 const assert = require('assert');
 const fs = require('fs');
-const badNavStartTrace = require('../fixtures/traces/bad-nav-start-ts.json');
-const lateTracingStartedTrace = require('../fixtures/traces/tracingstarted-after-navstart.json');
-const noTracingStartedTrace = require('../fixtures/traces/no-tracingstarted-m74.json');
-const preactTrace = require('../fixtures/traces/preactjs.com_ts_of_undefined.json');
-const noFMPtrace = require('../fixtures/traces/no_fmp_event.json');
-const noFCPtrace = require('../fixtures/traces/airhorner_no_fcp.json');
-const noNavStartTrace = require('../fixtures/traces/no_navstart_event.json');
-const backgroundTabTrace = require('../fixtures/traces/backgrounded-tab-missing-paints.json');
+const badNavStartTrace = require('../../fixtures/traces/bad-nav-start-ts.json');
+const lateTracingStartedTrace = require('../../fixtures/traces/tracingstarted-after-navstart.json');
+const noTracingStartedTrace = require('../../fixtures/traces/no-tracingstarted-m74.json');
+const preactTrace = require('../../fixtures/traces/preactjs.com_ts_of_undefined.json');
+const noFMPtrace = require('../../fixtures/traces/no_fmp_event.json');
+const noFCPtrace = require('../../fixtures/traces/airhorner_no_fcp.json');
+const noNavStartTrace = require('../../fixtures/traces/no_navstart_event.json');
+const backgroundTabTrace = require('../../fixtures/traces/backgrounded-tab-missing-paints.json');
 
 /* eslint-env jest */
 describe('Trace of Tab computed artifact:', () => {
-  it('gathers the events from the tab\'s process', async () => {
-    const trace = await TraceOfTab.compute_(lateTracingStartedTrace);
+  it('gathers the events from the tab\'s process', () => {
+    const trace = TraceOfTab.compute(lateTracingStartedTrace);
 
     const firstEvt = trace.processEvents[0];
     trace.processEvents.forEach(evt => {
@@ -34,8 +34,8 @@ describe('Trace of Tab computed artifact:', () => {
     assert.ok(firstEvt.pid === trace.firstMeaningfulPaintEvt.pid);
   });
 
-  it('computes timings of each event', async () => {
-    const trace = await TraceOfTab.compute_(lateTracingStartedTrace);
+  it('computes timings of each event', () => {
+    const trace = TraceOfTab.compute(lateTracingStartedTrace);
     assert.equal(Math.round(trace.timings.navigationStart), 0);
     assert.equal(Math.round(trace.timings.firstPaint), 80);
     assert.equal(Math.round(trace.timings.firstContentfulPaint), 80);
@@ -43,8 +43,8 @@ describe('Trace of Tab computed artifact:', () => {
     assert.equal(Math.round(trace.timings.traceEnd), 649);
   });
 
-  it('computes timestamps of each event', async () => {
-    const trace = await TraceOfTab.compute_(lateTracingStartedTrace);
+  it('computes timestamps of each event', () => {
+    const trace = TraceOfTab.compute(lateTracingStartedTrace);
     assert.equal(Math.round(trace.timestamps.navigationStart), 29343540951);
     assert.equal(Math.round(trace.timestamps.firstPaint), 29343620997);
     assert.equal(Math.round(trace.timestamps.firstContentfulPaint), 29343621005);
@@ -53,8 +53,8 @@ describe('Trace of Tab computed artifact:', () => {
   });
 
   describe('finds correct FMP', () => {
-    it('if there was a tracingStartedInPage after the frame\'s navStart', async () => {
-      const trace = await TraceOfTab.compute_(lateTracingStartedTrace);
+    it('if there was a tracingStartedInPage after the frame\'s navStart', () => {
+      const trace = TraceOfTab.compute(lateTracingStartedTrace);
       assert.equal(trace.mainFrameIds.frameId, '0x163736997740');
       assert.equal(trace.navigationStartEvt.ts, 29343540951);
       assert.equal(trace.firstContentfulPaintEvt.ts, 29343621005);
@@ -62,8 +62,8 @@ describe('Trace of Tab computed artifact:', () => {
       assert.ok(!trace.fmpFellBack);
     });
 
-    it('if there was a tracingStartedInPage after the frame\'s navStart #2', async () => {
-      const trace = await TraceOfTab.compute_(badNavStartTrace);
+    it('if there was a tracingStartedInPage after the frame\'s navStart #2', () => {
+      const trace = TraceOfTab.compute(badNavStartTrace);
       assert.equal(trace.mainFrameIds.frameId, '0x89915541e48');
       assert.equal(trace.navigationStartEvt.ts, 8885424467);
       assert.equal(trace.firstContentfulPaintEvt.ts, 8886056886);
@@ -71,8 +71,8 @@ describe('Trace of Tab computed artifact:', () => {
       assert.ok(!trace.fmpFellBack);
     });
 
-    it('if it appears slightly before the fCP', async () => {
-      const trace = await TraceOfTab.compute_(preactTrace);
+    it('if it appears slightly before the fCP', () => {
+      const trace = TraceOfTab.compute(preactTrace);
       assert.equal(trace.mainFrameIds.frameId, '0x25edaa521e58');
       assert.equal(trace.navigationStartEvt.ts, 1805796384607);
       assert.equal(trace.firstContentfulPaintEvt.ts, 1805797263653);
@@ -80,8 +80,8 @@ describe('Trace of Tab computed artifact:', () => {
       assert.ok(!trace.fmpFellBack);
     });
 
-    it('from candidates if no defined FMP exists', async () => {
-      const trace = await TraceOfTab.compute_(noFMPtrace);
+    it('from candidates if no defined FMP exists', () => {
+      const trace = TraceOfTab.compute(noFMPtrace);
       assert.equal(trace.mainFrameIds.frameId, '0x150343381dd0');
       assert.equal(trace.navigationStartEvt.ts, 2146735807738);
       assert.equal(trace.firstContentfulPaintEvt.ts, 2146737302468);
@@ -90,8 +90,8 @@ describe('Trace of Tab computed artifact:', () => {
     });
   });
 
-  it('handles traces missing a paints (captured in background tab)', async () => {
-    const trace = await TraceOfTab.compute_(backgroundTabTrace);
+  it('handles traces missing a paints (captured in background tab)', () => {
+    const trace = TraceOfTab.compute(backgroundTabTrace);
     assert.equal(trace.mainFrameIds.frameId, '0x53965941e30');
     assert.notEqual(trace.navigationStartEvt.ts, 1966813346529, 'picked wrong frame');
     assert.notEqual(trace.navigationStartEvt.ts, 1966813520313, 'picked wrong frame');
@@ -103,7 +103,7 @@ describe('Trace of Tab computed artifact:', () => {
     assert.equal(trace.firstMeaningfulPaintEvt, undefined, 'bad fmp');
   });
 
-  it('handles traces with TracingStartedInBrowser events', async () => {
+  it('handles traces with TracingStartedInBrowser events', () => {
     const tracingStartedInBrowserTrace = {
       'traceEvents': [{
         'pid': 69850,
@@ -158,21 +158,21 @@ describe('Trace of Tab computed artifact:', () => {
         'name': 'thread_name',
         'args': {'name': 'CrRendererMain'},
       }]};
-    const trace = await TraceOfTab.compute_(tracingStartedInBrowserTrace);
+    const trace = TraceOfTab.compute(tracingStartedInBrowserTrace);
     assert.equal(trace.mainFrameIds.frameId, 'B192D1F3355A6F961EC8F0B01623C1FB');
     assert.equal(trace.navigationStartEvt.ts, 2193564790059);
   });
 
-  it('handles no TracingStarted errors in m74+', async () => {
-    const trace = await TraceOfTab.compute_(noTracingStartedTrace);
+  it('handles no TracingStarted errors in m74+', () => {
+    const trace = TraceOfTab.compute(noTracingStartedTrace);
     expect(trace.mainFrameIds.frameId).toEqual('0E0B1AF0B1BA04676037345D18A71577');
     expect(trace.firstContentfulPaintEvt.ts).toEqual(2610265036367);
   });
 
-  it('stably sorts events', async () => {
+  it('stably sorts events', () => {
     const traceJson = fs.readFileSync(__dirname +
-        '/../fixtures/traces/tracingstarted-after-navstart.json', 'utf8');
-    const trace = await TraceOfTab.compute_(JSON.parse(traceJson));
+        '/../../fixtures/traces/tracingstarted-after-navstart.json', 'utf8');
+    const trace = TraceOfTab.compute(JSON.parse(traceJson));
     const mainPid = trace.mainThreadEvents[0].pid;
 
     const freshProcessEvents = JSON.parse(traceJson).traceEvents
@@ -200,14 +200,10 @@ describe('Trace of Tab computed artifact:', () => {
   });
 
   it('throws on traces missing a navigationStart', () => {
-    return TraceOfTab.compute_(noNavStartTrace)
-      .then(_ => assert(false, 'NO_NAVSTART error not throw'),
-        err => assert.equal(err.message, 'NO_NAVSTART'));
+    expect(() =>TraceOfTab.compute(noNavStartTrace)).toThrowError('NO_NAVSTART');
   });
 
   it('throws on traces missing an FCP', () => {
-    return TraceOfTab.compute_(noFCPtrace)
-      .then(_ => assert(false, 'NO_FCP error not throw'),
-        err => assert.equal(err.message, 'NO_FCP'));
+    expect(() =>TraceOfTab.compute(noFCPtrace)).toThrowError('NO_FCP');
   });
 });
diff --git a/lighthouse-core/test/lib/tracehouse/tracing-processor-test.js b/lighthouse-core/test/lib/tracehouse/tracing-processor-test.js
index cff916e36c8b..3241c8298d79 100644
--- a/lighthouse-core/test/lib/tracehouse/tracing-processor-test.js
+++ b/lighthouse-core/test/lib/tracehouse/tracing-processor-test.js
@@ -8,11 +8,11 @@
 const assert = require('assert');
 
 /* eslint-env jest */
-const TracingProcessor = require('../../../lib/traces/tracing-processor.js');
+const TracingProcessor = require('../../../lib/tracehouse/tracing-processor.js');
 const pwaTrace = require('../../fixtures/traces/progressive-app.json');
 const defaultPercentiles = [0, 0.25, 0.5, 0.75, 0.9, 0.99, 1];
 
-const TraceOfTab = require('../../../computed/trace-of-tab.js');
+const TraceOfTab = require('../../../lib/tracehouse/trace-of-tab.js');
 
 /**
  * Create a riskPercentiles result object by matching the values in percentiles
@@ -147,9 +147,9 @@ describe('TracingProcessor lib', () => {
   });
 
   describe('getMainThreadTopLevelEvents', () => {
-    it('gets durations of top-level tasks', async () => {
+    it('gets durations of top-level tasks', () => {
       const trace = {traceEvents: pwaTrace};
-      const tabTrace = await TraceOfTab.compute_(trace);
+      const tabTrace = TraceOfTab.compute(trace);
       const ret = TracingProcessor.getMainThreadTopLevelEvents(tabTrace);
 
       assert.equal(ret.length, 645);
@@ -190,7 +190,7 @@ describe('TracingProcessor lib', () => {
   describe('getMainThreadTopLevelEventDurations', () => {
     it('gets durations of top-level tasks', async () => {
       const trace = {traceEvents: pwaTrace};
-      const tabTrace = await TraceOfTab.compute_(trace);
+      const tabTrace = TraceOfTab.compute(trace);
       const events = TracingProcessor.getMainThreadTopLevelEvents(tabTrace);
       const ret = TracingProcessor.getMainThreadTopLevelEventDurations(events);
       const durations = ret.durations;
@@ -228,7 +228,7 @@ describe('TracingProcessor lib', () => {
 
     it('compute correct defaults', async () => {
       const trace = {traceEvents: pwaTrace};
-      const tabTrace = await TraceOfTab.compute_(trace);
+      const tabTrace = TraceOfTab.compute(trace);
       const events = TracingProcessor.getMainThreadTopLevelEvents(tabTrace);
       const ret = TracingProcessor.getRiskToResponsiveness(events, 0, tabTrace.timings.traceEnd);
       assert.equal(ret.durations.length, 645);
diff --git a/types/artifacts.d.ts b/types/artifacts.d.ts
index 860a0520f633..3129406a9b90 100644
--- a/types/artifacts.d.ts
+++ b/types/artifacts.d.ts
@@ -9,7 +9,7 @@ import _LanternSimulator = require('../lighthouse-core/lib/dependency-graph/simu
 import _NetworkRequest = require('../lighthouse-core/lib/network-request.js');
 import speedline = require('speedline-core');
 
-type _TaskNode = import('../lighthouse-core/computed/main-thread-tasks.js').TaskNode;
+type _TaskNode = import('../lighthouse-core/lib/tracehouse/main-thread-tasks.js').TaskNode;
 
 type LanternSimulator = InstanceType<typeof _LanternSimulator>;
 

From ccc5a922c17393c900275319b099647a05c0107c Mon Sep 17 00:00:00 2001
From: Patrick Hulce <patrick.hulce@gmail.com>
Date: Wed, 5 Jun 2019 01:13:57 -0500
Subject: [PATCH 015/110] misc: update broken tracing-processor require (#9123)

---
 .../computed/metrics/cumulative-long-queuing-delay.js           | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lighthouse-core/computed/metrics/cumulative-long-queuing-delay.js b/lighthouse-core/computed/metrics/cumulative-long-queuing-delay.js
index 65f9c7bdcc5a..da168907235f 100644
--- a/lighthouse-core/computed/metrics/cumulative-long-queuing-delay.js
+++ b/lighthouse-core/computed/metrics/cumulative-long-queuing-delay.js
@@ -8,7 +8,7 @@
 const makeComputedArtifact = require('../computed-artifact.js');
 const ComputedMetric = require('./metric.js');
 const LHError = require('../../lib/lh-error.js');
-const TracingProcessor = require('../../lib/traces/tracing-processor.js');
+const TracingProcessor = require('../../lib/tracehouse/tracing-processor.js');
 const LanternCumulativeLongQueuingDelay = require('./lantern-cumulative-long-queuing-delay.js');
 const TimetoInteractive = require('./interactive.js');
 

From 9ebae67202a6df281781024ffa911a27643e629d Mon Sep 17 00:00:00 2001
From: Patrick Hulce <patrick.hulce@gmail.com>
Date: Wed, 5 Jun 2019 15:12:38 -0500
Subject: [PATCH 016/110] core(gather-runner): convert PAGE_HUNG to non-fatal
 runtimeError (#9121)

---
 clients/extension/scripts/popup.js            |  7 ----
 lighthouse-cli/run.js                         | 18 ---------
 .../test/smokehouse/error-expectations.js     |  4 +-
 .../test/smokehouse/smokehouse-report.js      |  6 ---
 lighthouse-cli/test/smokehouse/smokehouse.js  | 38 +++----------------
 lighthouse-core/gather/driver.js              | 22 ++++++++---
 lighthouse-core/gather/gather-runner.js       |  7 +++-
 types/smokehouse.d.ts                         |  1 -
 8 files changed, 30 insertions(+), 73 deletions(-)

diff --git a/clients/extension/scripts/popup.js b/clients/extension/scripts/popup.js
index bf33fe7c26eb..382e2d635207 100644
--- a/clients/extension/scripts/popup.js
+++ b/clients/extension/scripts/popup.js
@@ -13,14 +13,7 @@
  * Lighthouse itself, mapped to more useful strings to report to the user.
  */
 const NON_BUG_ERROR_MESSAGES = {
-  // The user tries to review an error page or has network issues
-  'ERRORED_DOCUMENT_REQUEST': 'Unable to load the page. Please verify the url you ' +
-      'are trying to review.',
-  'FAILED_DOCUMENT_REQUEST': 'Unable to load the page. Please verify the url you ' +
-      'are trying to review.',
   'DNS_FAILURE': 'DNS servers could not resolve the provided domain.',
-  'INSECURE_DOCUMENT_REQUEST': 'The URL you have provided does not have a valid' +
-      ' SSL certificate.',
   'INVALID_URL': 'Lighthouse can only audit URLs that start' +
       ' with http:// or https://.',
 
diff --git a/lighthouse-cli/run.js b/lighthouse-cli/run.js
index 88c6a4ba848d..cc8c717f1995 100644
--- a/lighthouse-cli/run.js
+++ b/lighthouse-cli/run.js
@@ -24,8 +24,6 @@ const opn = require('opn');
 
 const _RUNTIME_ERROR_CODE = 1;
 const _PROTOCOL_TIMEOUT_EXIT_CODE = 67;
-const _PAGE_HUNG_EXIT_CODE = 68;
-const _INSECURE_DOCUMENT_REQUEST_EXIT_CODE = 69;
 
 /**
  * exported for testing
@@ -76,18 +74,6 @@ function printProtocolTimeoutErrorAndExit() {
   return process.exit(_PROTOCOL_TIMEOUT_EXIT_CODE);
 }
 
-/** @param {LighthouseError} err @return {never} */
-function printPageHungErrorAndExit(err) {
-  console.error('Page hung:', err.friendlyMessage);
-  return process.exit(_PAGE_HUNG_EXIT_CODE);
-}
-
-/** @param {LighthouseError} err @return {never} */
-function printInsecureDocumentRequestErrorAndExit(err) {
-  console.error('Insecure document request:', err.friendlyMessage);
-  return process.exit(_INSECURE_DOCUMENT_REQUEST_EXIT_CODE);
-}
-
 /**
  * @param {LighthouseError} err
  * @return {never}
@@ -109,10 +95,6 @@ function printErrorAndExit(err) {
     return printConnectionErrorAndExit();
   } else if (err.code === 'CRI_TIMEOUT') {
     return printProtocolTimeoutErrorAndExit();
-  } else if (err.code === 'PAGE_HUNG') {
-    return printPageHungErrorAndExit(err);
-  } else if (err.code === 'INSECURE_DOCUMENT_REQUEST') {
-    return printInsecureDocumentRequestErrorAndExit(err);
   } else {
     return printRuntimeErrorAndExit(err);
   }
diff --git a/lighthouse-cli/test/smokehouse/error-expectations.js b/lighthouse-cli/test/smokehouse/error-expectations.js
index 55afc640f430..c7d43683349f 100644
--- a/lighthouse-cli/test/smokehouse/error-expectations.js
+++ b/lighthouse-cli/test/smokehouse/error-expectations.js
@@ -10,19 +10,19 @@
  */
 module.exports = [
   {
-    errorCode: 'PAGE_HUNG',
     lhr: {
       requestedUrl: 'http://localhost:10200/infinite-loop.html',
       finalUrl: 'http://localhost:10200/infinite-loop.html',
       audits: {},
+      runtimeError: {code: 'PAGE_HUNG'},
     },
   },
   {
-    errorCode: undefined,
     lhr: {
       requestedUrl: 'https://expired.badssl.com',
       finalUrl: 'https://expired.badssl.com/',
       audits: {},
+      runtimeError: {code: 'FAILED_DOCUMENT_REQUEST'},
     },
   },
 ];
diff --git a/lighthouse-cli/test/smokehouse/smokehouse-report.js b/lighthouse-cli/test/smokehouse/smokehouse-report.js
index 656561f32152..f3f4f04b0af2 100644
--- a/lighthouse-cli/test/smokehouse/smokehouse-report.js
+++ b/lighthouse-cli/test/smokehouse/smokehouse-report.js
@@ -155,12 +155,6 @@ function collateResults(actual, expected) {
   });
 
   return [
-    {
-      name: 'error code',
-      actual: actual.errorCode,
-      expected: expected.errorCode,
-      equal: actual.errorCode === expected.errorCode,
-    },
     {
       name: 'final url',
       actual: actual.lhr.finalUrl,
diff --git a/lighthouse-cli/test/smokehouse/smokehouse.js b/lighthouse-cli/test/smokehouse/smokehouse.js
index 680de8884578..0d3f5ff3f869 100755
--- a/lighthouse-cli/test/smokehouse/smokehouse.js
+++ b/lighthouse-cli/test/smokehouse/smokehouse.js
@@ -16,8 +16,6 @@ const log = require('lighthouse-logger');
 const {collateResults, report} = require('./smokehouse-report.js');
 
 const PROTOCOL_TIMEOUT_EXIT_CODE = 67;
-const PAGE_HUNG_EXIT_CODE = 68;
-const INSECURE_DOCUMENT_REQUEST_EXIT_CODE = 69;
 const RETRIES = 3;
 
 /**
@@ -38,21 +36,6 @@ function resolveLocalOrCwd(payloadPath) {
   return resolved;
 }
 
-/**
- * Determines if the Lighthouse run ended in an unexpected fatal result.
- * @param {number} exitCode
- * @param {string} outputPath
- */
-function isUnexpectedFatalResult(exitCode, outputPath) {
-  return exitCode !== 0
-    // These runtime errors are currently fatal but "expected" runtime errors we are asserting against.
-    && exitCode !== PAGE_HUNG_EXIT_CODE
-    && exitCode !== INSECURE_DOCUMENT_REQUEST_EXIT_CODE
-    // On runtime errors we exit with a error status code, but still output a report.
-    // If the report exists, it wasn't a fatal LH error we need to abort on, it's one we're asserting :)
-    && !fs.existsSync(outputPath);
-}
-
 /**
  * Launch Chrome and do a full Lighthouse run.
  * @param {string} url
@@ -108,25 +91,17 @@ function runLighthouse(url, configPath, isDebug) {
   if (runResults.status === PROTOCOL_TIMEOUT_EXIT_CODE) {
     console.error(`Lighthouse debugger connection timed out ${RETRIES} times. Giving up.`);
     process.exit(1);
-  } else if (isUnexpectedFatalResult(runResults.status, outputPath)) {
-    console.error(`Lighthouse run failed with exit code ${runResults.status}. stderr to follow:`);
+  } else if (!fs.existsSync(outputPath)) {
+    console.error(`Lighthouse run failed to produce a report and exited with ${runResults.status}. stderr to follow:`); // eslint-disable-line max-len
     console.error(runResults.stderr);
     process.exit(runResults.status);
   }
 
-  let errorCode;
-  let lhr = {requestedUrl: url, finalUrl: url, audits: {}};
-  if (runResults.status === PAGE_HUNG_EXIT_CODE) {
-    errorCode = 'PAGE_HUNG';
-  } else if (runResults.status === INSECURE_DOCUMENT_REQUEST_EXIT_CODE) {
-    errorCode = 'INSECURE_DOCUMENT_REQUEST';
+  const lhr = JSON.parse(fs.readFileSync(outputPath, 'utf8'));
+  if (isDebug) {
+    console.log('LHR output available at: ', outputPath);
   } else {
-    lhr = JSON.parse(fs.readFileSync(outputPath, 'utf8'));
-    if (isDebug) {
-      console.log('LHR output available at: ', outputPath);
-    } else if (fs.existsSync(outputPath)) {
-      fs.unlinkSync(outputPath);
-    }
+    fs.unlinkSync(outputPath);
   }
 
   // Artifacts are undefined if they weren't written to disk (e.g. if there was an error).
@@ -136,7 +111,6 @@ function runLighthouse(url, configPath, isDebug) {
   } catch (e) {}
 
   return {
-    errorCode,
     lhr,
     artifacts,
   };
diff --git a/lighthouse-core/gather/driver.js b/lighthouse-core/gather/driver.js
index a07c4d6d6295..a5a8ee8a6ee3 100644
--- a/lighthouse-core/gather/driver.js
+++ b/lighthouse-core/gather/driver.js
@@ -1452,7 +1452,7 @@ class Driver {
    * @param {string} url
    * @return {Promise<void>}
    */
-  clearDataForOrigin(url) {
+  async clearDataForOrigin(url) {
     const origin = new URL(url).origin;
 
     // Clear all types of storage except cookies, so the user isn't logged out.
@@ -1469,10 +1469,22 @@ class Driver {
       'cache_storage',
     ].join(',');
 
-    return this.sendCommand('Storage.clearDataForOrigin', {
-      origin: origin,
-      storageTypes: typesToClear,
-    });
+    // `Storage.clearDataForOrigin` is one of our PROTOCOL_TIMEOUT culprits and this command is also
+    // run in the context of PAGE_HUNG to cleanup. We'll keep the timeout low and just warn if it fails.
+    this.setNextProtocolTimeout(5000);
+
+    try {
+      await this.sendCommand('Storage.clearDataForOrigin', {
+        origin: origin,
+        storageTypes: typesToClear,
+      });
+    } catch (err) {
+      if (/** @type {LH.LighthouseError} */(err).code === 'PROTOCOL_TIMEOUT') {
+        log.warn('Driver', 'clearDataForOrigin timed out');
+      } else {
+        throw err;
+      }
+    }
   }
 
   /**
diff --git a/lighthouse-core/gather/gather-runner.js b/lighthouse-core/gather/gather-runner.js
index 24f3baafb578..99fc7b6ffd5e 100644
--- a/lighthouse-core/gather/gather-runner.js
+++ b/lighthouse-core/gather/gather-runner.js
@@ -71,7 +71,7 @@ class GatherRunner {
       passContext.url = finalUrl;
     } catch (err) {
       // If it's one of our loading-based LHErrors, we'll treat it as a page load error.
-      if (err.code === 'NO_FCP') {
+      if (err.code === 'NO_FCP' || err.code === 'PAGE_HUNG') {
         return {navigationError: err};
       }
 
@@ -452,7 +452,7 @@ class GatherRunner {
       traces: {},
       devtoolsLogs: {},
       settings: options.settings,
-      URL: {requestedUrl: options.requestedUrl, finalUrl: ''},
+      URL: {requestedUrl: options.requestedUrl, finalUrl: options.requestedUrl},
       Timing: [],
     };
   }
@@ -552,6 +552,9 @@ class GatherRunner {
         const passResults = await GatherRunner.runPass(passContext);
         Object.assign(artifacts, passResults.artifacts);
 
+        // If we encountered a pageLoadError, don't try to keep loading the page in future passes.
+        if (passResults.pageLoadError) break;
+
         if (isFirstPass) {
           await GatherRunner.populateBaseArtifacts(passContext);
           isFirstPass = false;
diff --git a/types/smokehouse.d.ts b/types/smokehouse.d.ts
index 5dc28921a256..246e9cbc25b8 100644
--- a/types/smokehouse.d.ts
+++ b/types/smokehouse.d.ts
@@ -22,7 +22,6 @@
   export type ExpectedLHR = Pick<LH.Result, 'audits' | 'finalUrl' | 'requestedUrl'>
 
   export type ExpectedRunnerResult = {
-    errorCode?: string;
     lhr: ExpectedLHR,
     artifacts?: Partial<LH.Artifacts>
   }

From 9e97e103c2f3a8872e69c469a0a5e80769507efc Mon Sep 17 00:00:00 2001
From: Brendan Kenny <bckenny@gmail.com>
Date: Wed, 5 Jun 2019 18:23:33 -0700
Subject: [PATCH 017/110] deps: bump transitive dep js-yaml (#9131)

---
 yarn.lock | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/yarn.lock b/yarn.lock
index db33cf0d9f32..6bc1183b6128 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5142,18 +5142,10 @@ js-tokens@^4.0.0:
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-4.0.0.tgz#19203fb59991df98e3a287050d4647cdeaf32499"
   integrity sha512-RdJUflcE3cUzKiMqQgsCu06FPu9UdIJO0beYbPhHN4k6apgJtifcoCtT9bcxOpYBtpD2kCM6Sbzg4CausW/PKQ==
 
-js-yaml@^3.11.0, js-yaml@^3.12.0:
-  version "3.12.1"
-  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.12.1.tgz#295c8632a18a23e054cf5c9d3cecafe678167600"
-  integrity sha512-um46hB9wNOKlwkHgiuyEVAybXBjwFUV0Z/RaHJblRd9DXltue9FTYvzCr9ErQrK9Adz5MU4gHWVaNUfdmrC8qA==
-  dependencies:
-    argparse "^1.0.7"
-    esprima "^4.0.0"
-
-js-yaml@^3.9.1:
-  version "3.10.0"
-  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.10.0.tgz#2e78441646bd4682e963f22b6e92823c309c62dc"
-  integrity sha512-O2v52ffjLa9VeM43J4XocZE//WT9N0IiwDa3KSHH7Tu8CtH+1qM8SIZvnsTh6v+4yFy5KUY3BHUVwjpfAWsjIA==
+js-yaml@^3.11.0, js-yaml@^3.12.0, js-yaml@^3.9.1:
+  version "3.13.1"
+  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.13.1.tgz#aff151b30bfdfa8e49e05da22e7415e9dfa37847"
+  integrity sha512-YfbcO7jXDdyj0DGxYVSlSeQNHbD7XPWvrVWeVUujrQEoZzWJIRrCPoyk6kL6IAjAG2IolMK4T0hNUe0HOUs5Jw==
   dependencies:
     argparse "^1.0.7"
     esprima "^4.0.0"

From 4a83d2b2b6fd12557bba2d4a467018f470e7f7c8 Mon Sep 17 00:00:00 2001
From: Brendan Kenny <bckenny@gmail.com>
Date: Thu, 6 Jun 2019 16:38:12 -0700
Subject: [PATCH 018/110] tests(smokehouse): always assert lhr.runtimeError
 (#9130)

---
 .../test/smokehouse/error-config.js           |  2 ++
 .../test/smokehouse/error-expectations.js     |  8 ++++++
 .../test/smokehouse/seo/expectations.js       |  4 +++
 .../test/smokehouse/smokehouse-report.js      |  9 ++++++-
 lighthouse-cli/test/smokehouse/smokehouse.js  | 26 +++++++++++++------
 lighthouse-core/lib/asset-saver.js            |  4 +--
 lighthouse-core/runner.js                     |  2 +-
 .../scripts/update-report-fixtures.js         |  4 +--
 types/smokehouse.d.ts                         |  2 +-
 9 files changed, 46 insertions(+), 15 deletions(-)

diff --git a/lighthouse-cli/test/smokehouse/error-config.js b/lighthouse-cli/test/smokehouse/error-config.js
index 771bdf60461e..6be23c61645d 100644
--- a/lighthouse-cli/test/smokehouse/error-config.js
+++ b/lighthouse-cli/test/smokehouse/error-config.js
@@ -14,6 +14,8 @@ module.exports = {
     maxWaitForLoad: 5000,
     onlyAudits: [
       'first-contentful-paint',
+      // TODO: this audit collects a non-base artifact, allowing the runtimeError to be collected.
+      'content-width',
     ],
   },
 };
diff --git a/lighthouse-cli/test/smokehouse/error-expectations.js b/lighthouse-cli/test/smokehouse/error-expectations.js
index c7d43683349f..0d2e40ac47eb 100644
--- a/lighthouse-cli/test/smokehouse/error-expectations.js
+++ b/lighthouse-cli/test/smokehouse/error-expectations.js
@@ -14,15 +14,23 @@ module.exports = [
       requestedUrl: 'http://localhost:10200/infinite-loop.html',
       finalUrl: 'http://localhost:10200/infinite-loop.html',
       audits: {},
+      // TODO: runtimeError only exists because of selection of audits.
       runtimeError: {code: 'PAGE_HUNG'},
     },
+    artifacts: {
+      ViewportDimensions: {code: 'PAGE_HUNG'},
+    },
   },
   {
     lhr: {
       requestedUrl: 'https://expired.badssl.com',
       finalUrl: 'https://expired.badssl.com/',
       audits: {},
+      // TODO: runtimeError only exists because of selection of audits.
       runtimeError: {code: 'FAILED_DOCUMENT_REQUEST'},
     },
+    artifacts: {
+      ViewportDimensions: {code: 'FAILED_DOCUMENT_REQUEST'},
+    },
   },
 ];
diff --git a/lighthouse-cli/test/smokehouse/seo/expectations.js b/lighthouse-cli/test/smokehouse/seo/expectations.js
index f5b9a7b182f0..098d0f0358e6 100644
--- a/lighthouse-cli/test/smokehouse/seo/expectations.js
+++ b/lighthouse-cli/test/smokehouse/seo/expectations.js
@@ -210,6 +210,10 @@ module.exports = [
       // Note: most scores are null (audit error) because the page 403ed.
       requestedUrl: BASE_URL + 'seo-failure-cases.html?status_code=403',
       finalUrl: BASE_URL + 'seo-failure-cases.html?status_code=403',
+      runtimeError: {
+        code: 'ERRORED_DOCUMENT_REQUEST',
+        message: /Status code: 403/,
+      },
       audits: {
         'http-status-code': {
           score: 0,
diff --git a/lighthouse-cli/test/smokehouse/smokehouse-report.js b/lighthouse-cli/test/smokehouse/smokehouse-report.js
index f3f4f04b0af2..5f670a38a394 100644
--- a/lighthouse-cli/test/smokehouse/smokehouse-report.js
+++ b/lighthouse-cli/test/smokehouse/smokehouse-report.js
@@ -126,6 +126,11 @@ function makeComparison(name, actualResult, expectedResult) {
  * @return {Smokehouse.Comparison[]}
  */
 function collateResults(actual, expected) {
+  // If actual run had a runtimeError, expected *must* have a runtimeError.
+  // Relies on the fact that an `undefined` argument to makeComparison() can only match `undefined`.
+  const runtimeErrorAssertion = makeComparison('runtimeError', actual.lhr.runtimeError,
+      expected.lhr.runtimeError);
+
   /** @type {Smokehouse.Comparison[]} */
   let artifactAssertions = [];
   if (expected.artifacts) {
@@ -161,6 +166,7 @@ function collateResults(actual, expected) {
       expected: expected.lhr.finalUrl,
       equal: actual.lhr.finalUrl === expected.lhr.finalUrl,
     },
+    runtimeErrorAssertion,
     ...artifactAssertions,
     ...auditAssertions,
   ];
@@ -194,7 +200,8 @@ function reportAssertion(assertion) {
   } else {
     if (assertion.diff) {
       const diff = assertion.diff;
-      const fullActual = JSON.stringify(assertion.actual, null, 2).replace(/\n/g, '\n      ');
+      const fullActual = String(JSON.stringify(assertion.actual, null, 2))
+          .replace(/\n/g, '\n      ');
       const msg = `
   ${log.redify(log.cross)} difference at ${log.bold}${diff.path}${log.reset}
               expected: ${JSON.stringify(diff.expected)}
diff --git a/lighthouse-cli/test/smokehouse/smokehouse.js b/lighthouse-cli/test/smokehouse/smokehouse.js
index 0d3f5ff3f869..c39b4f481997 100755
--- a/lighthouse-cli/test/smokehouse/smokehouse.js
+++ b/lighthouse-cli/test/smokehouse/smokehouse.js
@@ -13,7 +13,10 @@ const path = require('path');
 const spawnSync = require('child_process').spawnSync;
 const yargs = require('yargs');
 const log = require('lighthouse-logger');
+const rimraf = require('rimraf');
+
 const {collateResults, report} = require('./smokehouse-report.js');
+const assetSaver = require('../../../lighthouse-core/lib/asset-saver.js');
 
 const PROTOCOL_TIMEOUT_EXIT_CODE = 67;
 const RETRIES = 3;
@@ -88,27 +91,34 @@ function runLighthouse(url, configPath, isDebug) {
     console.error(`STDERR: ${runResults.stderr}`);
   }
 
-  if (runResults.status === PROTOCOL_TIMEOUT_EXIT_CODE) {
+  const exitCode = runResults.status;
+  if (exitCode === PROTOCOL_TIMEOUT_EXIT_CODE) {
     console.error(`Lighthouse debugger connection timed out ${RETRIES} times. Giving up.`);
     process.exit(1);
   } else if (!fs.existsSync(outputPath)) {
-    console.error(`Lighthouse run failed to produce a report and exited with ${runResults.status}. stderr to follow:`); // eslint-disable-line max-len
+    console.error(`Lighthouse run failed to produce a report and exited with ${exitCode}. stderr to follow:`); // eslint-disable-line max-len
     console.error(runResults.stderr);
-    process.exit(runResults.status);
+    process.exit(exitCode);
   }
 
+  /** @type {LH.Result} */
   const lhr = JSON.parse(fs.readFileSync(outputPath, 'utf8'));
+  const artifacts = assetSaver.loadArtifacts(artifactsDirectory);
+
   if (isDebug) {
     console.log('LHR output available at: ', outputPath);
+    console.log('Artifacts avaiable in: ', artifactsDirectory);
   } else {
     fs.unlinkSync(outputPath);
+    rimraf.sync(artifactsDirectory);
   }
 
-  // Artifacts are undefined if they weren't written to disk (e.g. if there was an error).
-  let artifacts;
-  try {
-    artifacts = JSON.parse(fs.readFileSync(`${artifactsDirectory}/artifacts.json`, 'utf8'));
-  } catch (e) {}
+  // There should either be both an error exitCode and a lhr.runtimeError or neither.
+  if (Boolean(exitCode) !== Boolean(lhr.runtimeError)) {
+    const runtimeErrorCode = lhr.runtimeError && lhr.runtimeError.code;
+    console.error(`Lighthouse did not exit with an error correctly, exiting with ${exitCode} but with runtimeError '${runtimeErrorCode}'`); // eslint-disable-line max-len
+    process.exit(1);
+  }
 
   return {
     lhr,
diff --git a/lighthouse-core/lib/asset-saver.js b/lighthouse-core/lib/asset-saver.js
index ce4f7a7859b0..b5325c87756f 100644
--- a/lighthouse-core/lib/asset-saver.js
+++ b/lighthouse-core/lib/asset-saver.js
@@ -33,9 +33,9 @@ const devtoolsLogSuffix = '.devtoolslog.json';
  * Load artifacts object from files located within basePath
  * Also save the traces to their own files
  * @param {string} basePath
- * @return {Promise<LH.Artifacts>}
+ * @return {LH.Artifacts}
  */
-async function loadArtifacts(basePath) {
+function loadArtifacts(basePath) {
   log.log('Reading artifacts from disk:', basePath);
 
   if (!fs.existsSync(basePath)) {
diff --git a/lighthouse-core/runner.js b/lighthouse-core/runner.js
index 3838016f2581..153b26075f12 100644
--- a/lighthouse-core/runner.js
+++ b/lighthouse-core/runner.js
@@ -60,7 +60,7 @@ class Runner {
       if (settings.auditMode && !settings.gatherMode) {
         // No browser required, just load the artifacts from disk.
         const path = Runner._getArtifactsPath(settings);
-        artifacts = await assetSaver.loadArtifacts(path);
+        artifacts = assetSaver.loadArtifacts(path);
         requestedUrl = artifacts.URL.requestedUrl;
 
         if (!requestedUrl) {
diff --git a/lighthouse-core/scripts/update-report-fixtures.js b/lighthouse-core/scripts/update-report-fixtures.js
index 10d64051c397..5f157878301f 100644
--- a/lighthouse-core/scripts/update-report-fixtures.js
+++ b/lighthouse-core/scripts/update-report-fixtures.js
@@ -28,7 +28,7 @@ async function update(artifactName) {
     res(address.port);
   }));
 
-  const oldArtifacts = await assetSaver.loadArtifacts(artifactPath);
+  const oldArtifacts = assetSaver.loadArtifacts(artifactPath);
 
   const url = `http://localhost:${port}/dobetterweb/dbw_tester.html`;
   const rawFlags = [
@@ -41,7 +41,7 @@ async function update(artifactName) {
 
   if (artifactName) {
     // Revert everything except the one artifact
-    const newArtifacts = await assetSaver.loadArtifacts(artifactPath);
+    const newArtifacts = assetSaver.loadArtifacts(artifactPath);
     if (!(artifactName in newArtifacts) && !(artifactName in oldArtifacts)) {
       throw Error('Unknown artifact name: ' + artifactName);
     }
diff --git a/types/smokehouse.d.ts b/types/smokehouse.d.ts
index 246e9cbc25b8..7cc91133e8b6 100644
--- a/types/smokehouse.d.ts
+++ b/types/smokehouse.d.ts
@@ -19,7 +19,7 @@
     diff?: Difference | null;
   }
 
-  export type ExpectedLHR = Pick<LH.Result, 'audits' | 'finalUrl' | 'requestedUrl'>
+  export type ExpectedLHR = Pick<LH.Result, 'audits' | 'finalUrl' | 'requestedUrl' | 'runtimeError'>
 
   export type ExpectedRunnerResult = {
     lhr: ExpectedLHR,

From 7ba677681c41f73a802d41b586566963eecddbda Mon Sep 17 00:00:00 2001
From: Patrick Hulce <patrick.hulce@gmail.com>
Date: Wed, 5 Jun 2019 13:33:44 -0500
Subject: [PATCH 019/110] core(tracehouse): rename trace-of-tab

---
 .../lib/tracehouse/{trace-of-tab.js => trace-processor.js}        | 0
 .../tracehouse/{trace-of-tab-test.js => trace-processor-test.js}  | 0
 2 files changed, 0 insertions(+), 0 deletions(-)
 rename lighthouse-core/lib/tracehouse/{trace-of-tab.js => trace-processor.js} (100%)
 rename lighthouse-core/test/lib/tracehouse/{trace-of-tab-test.js => trace-processor-test.js} (100%)

diff --git a/lighthouse-core/lib/tracehouse/trace-of-tab.js b/lighthouse-core/lib/tracehouse/trace-processor.js
similarity index 100%
rename from lighthouse-core/lib/tracehouse/trace-of-tab.js
rename to lighthouse-core/lib/tracehouse/trace-processor.js
diff --git a/lighthouse-core/test/lib/tracehouse/trace-of-tab-test.js b/lighthouse-core/test/lib/tracehouse/trace-processor-test.js
similarity index 100%
rename from lighthouse-core/test/lib/tracehouse/trace-of-tab-test.js
rename to lighthouse-core/test/lib/tracehouse/trace-processor-test.js

From ddff3d6628da2fc36c9713ac183b7a5e040dfbf6 Mon Sep 17 00:00:00 2001
From: Patrick Hulce <patrick.hulce@gmail.com>
Date: Thu, 6 Jun 2019 18:29:21 -0500
Subject: [PATCH 020/110] core(tracehouse): merge tracing-processor with
 trace-of-tab

---
 docs/architecture.md                          |   2 +-
 .../metrics/cumulative-long-queuing-delay.js  |   2 +-
 .../metrics/estimated-input-latency.js        |   2 +-
 .../computed/metrics/first-cpu-idle.js        |   2 +-
 .../computed/metrics/interactive.js           |   2 +-
 .../computed/metrics/max-potential-fid.js     |   2 +-
 lighthouse-core/computed/metrics/metric.js    |   2 +-
 .../computed/page-dependency-graph.js         |   2 +-
 lighthouse-core/computed/trace-of-tab.js      |  31 +-
 lighthouse-core/lib/minify-trace.js           |   5 +-
 .../lib/tracehouse/trace-processor.js         | 324 +++++++++-
 .../lib/tracehouse/tracing-processor.js       | 285 ---------
 .../computed/metrics/first-cpu-idle-test.js   |   2 +-
 .../test/computed/trace-of-tab-test.js        |  32 +
 .../lib/tracehouse/main-thread-tasks-test.js  |   6 +-
 .../lib/tracehouse/trace-processor-test.js    | 565 +++++++++++++-----
 .../lib/tracehouse/tracing-processor-test.js  | 244 --------
 17 files changed, 781 insertions(+), 729 deletions(-)
 delete mode 100644 lighthouse-core/lib/tracehouse/tracing-processor.js
 delete mode 100644 lighthouse-core/test/lib/tracehouse/tracing-processor-test.js

diff --git a/docs/architecture.md b/docs/architecture.md
index a3ed283dfb1d..cf67e925ddc0 100644
--- a/docs/architecture.md
+++ b/docs/architecture.md
@@ -39,7 +39,7 @@ driver.sendCommand('Security.enable');
 
 ## Understanding a Trace
 
-`lighthouse-core/lib/tracehouse/trace-of-tab.js` and `lighthouse-core/lib/tracehouse/tracing-processor.js` provide the core transformation of a trace into more meaningful objects. Each raw trace event has a monotonically increasing timestamp in microseconds, a thread ID, a process ID, a duration in microseconds (potentially), and other applicable metadata properties such as the event type, the task name, the frame, etc. [Learn more about trace events](https://docs.google.com/document/d/1CvAClvFfyA5R-PhYUmn5OOQtYMH4h6I0nSsKchNAySU/preview).
+`lighthouse-core/lib/tracehouse/trace-processor.js` provides the core transformation of a trace into more meaningful objects. Each raw trace event has a monotonically increasing timestamp in microseconds, a thread ID, a process ID, a duration in microseconds (potentially), and other applicable metadata properties such as the event type, the task name, the frame, etc. [Learn more about trace events](https://docs.google.com/document/d/1CvAClvFfyA5R-PhYUmn5OOQtYMH4h6I0nSsKchNAySU/preview).
 
 ### Example Trace Event
 ```js
diff --git a/lighthouse-core/computed/metrics/cumulative-long-queuing-delay.js b/lighthouse-core/computed/metrics/cumulative-long-queuing-delay.js
index da168907235f..18aa99d1561a 100644
--- a/lighthouse-core/computed/metrics/cumulative-long-queuing-delay.js
+++ b/lighthouse-core/computed/metrics/cumulative-long-queuing-delay.js
@@ -8,7 +8,7 @@
 const makeComputedArtifact = require('../computed-artifact.js');
 const ComputedMetric = require('./metric.js');
 const LHError = require('../../lib/lh-error.js');
-const TracingProcessor = require('../../lib/tracehouse/tracing-processor.js');
+const TracingProcessor = require('../../lib/tracehouse/trace-processor.js');
 const LanternCumulativeLongQueuingDelay = require('./lantern-cumulative-long-queuing-delay.js');
 const TimetoInteractive = require('./interactive.js');
 
diff --git a/lighthouse-core/computed/metrics/estimated-input-latency.js b/lighthouse-core/computed/metrics/estimated-input-latency.js
index a027667d9ee0..ef4bab2d6a6f 100644
--- a/lighthouse-core/computed/metrics/estimated-input-latency.js
+++ b/lighthouse-core/computed/metrics/estimated-input-latency.js
@@ -8,7 +8,7 @@
 const makeComputedArtifact = require('../computed-artifact.js');
 const ComputedMetric = require('./metric.js');
 const LHError = require('../../lib/lh-error.js');
-const TracingProcessor = require('../../lib/tracehouse/tracing-processor.js');
+const TracingProcessor = require('../../lib/tracehouse/trace-processor.js');
 const LanternEstimatedInputLatency = require('./lantern-estimated-input-latency.js');
 
 const ROLLING_WINDOW_SIZE = 5000;
diff --git a/lighthouse-core/computed/metrics/first-cpu-idle.js b/lighthouse-core/computed/metrics/first-cpu-idle.js
index 202821e16568..ff85b08665b5 100644
--- a/lighthouse-core/computed/metrics/first-cpu-idle.js
+++ b/lighthouse-core/computed/metrics/first-cpu-idle.js
@@ -7,7 +7,7 @@
 
 const makeComputedArtifact = require('../computed-artifact.js');
 const ComputedMetric = require('./metric.js');
-const TracingProcessor = require('../../lib/tracehouse/tracing-processor.js');
+const TracingProcessor = require('../../lib/tracehouse/trace-processor.js');
 const LHError = require('../../lib/lh-error.js');
 const LanternFirstCPUIdle = require('./lantern-first-cpu-idle.js');
 
diff --git a/lighthouse-core/computed/metrics/interactive.js b/lighthouse-core/computed/metrics/interactive.js
index cc7fbd05fcd5..c61ec510126c 100644
--- a/lighthouse-core/computed/metrics/interactive.js
+++ b/lighthouse-core/computed/metrics/interactive.js
@@ -10,7 +10,7 @@ const ComputedMetric = require('./metric.js');
 const LanternInteractive = require('./lantern-interactive.js');
 
 const NetworkRecorder = require('../../lib/network-recorder.js');
-const TracingProcessor = require('../../lib/tracehouse/tracing-processor.js');
+const TracingProcessor = require('../../lib/tracehouse/trace-processor.js');
 const LHError = require('../../lib/lh-error.js');
 
 const REQUIRED_QUIET_WINDOW = 5000;
diff --git a/lighthouse-core/computed/metrics/max-potential-fid.js b/lighthouse-core/computed/metrics/max-potential-fid.js
index 6fed0414e5c1..76db19c9ece0 100644
--- a/lighthouse-core/computed/metrics/max-potential-fid.js
+++ b/lighthouse-core/computed/metrics/max-potential-fid.js
@@ -9,7 +9,7 @@ const makeComputedArtifact = require('../computed-artifact.js');
 const MetricArtifact = require('./metric.js');
 const LanternMaxPotentialFID = require('./lantern-max-potential-fid.js');
 const LHError = require('../../lib/lh-error.js');
-const TracingProcessor = require('../../lib/tracehouse/tracing-processor.js');
+const TracingProcessor = require('../../lib/tracehouse/trace-processor.js');
 
 class MaxPotentialFID extends MetricArtifact {
   /**
diff --git a/lighthouse-core/computed/metrics/metric.js b/lighthouse-core/computed/metrics/metric.js
index 1b2457ff083e..64a4a8938aee 100644
--- a/lighthouse-core/computed/metrics/metric.js
+++ b/lighthouse-core/computed/metrics/metric.js
@@ -5,7 +5,7 @@
  */
 'use strict';
 
-const TracingProcessor = require('../../lib/tracehouse/tracing-processor.js');
+const TracingProcessor = require('../../lib/tracehouse/trace-processor.js');
 const TraceOfTab = require('../trace-of-tab.js');
 const NetworkRecords = require('../network-records.js');
 
diff --git a/lighthouse-core/computed/page-dependency-graph.js b/lighthouse-core/computed/page-dependency-graph.js
index 2f728eaf2ef5..df711b783acb 100644
--- a/lighthouse-core/computed/page-dependency-graph.js
+++ b/lighthouse-core/computed/page-dependency-graph.js
@@ -9,7 +9,7 @@ const makeComputedArtifact = require('./computed-artifact.js');
 const NetworkNode = require('../lib/dependency-graph/network-node.js');
 const CPUNode = require('../lib/dependency-graph/cpu-node.js');
 const NetworkAnalyzer = require('../lib/dependency-graph/simulator/network-analyzer.js');
-const TracingProcessor = require('../lib/tracehouse/tracing-processor.js');
+const TracingProcessor = require('../lib/tracehouse/trace-processor.js');
 const NetworkRequest = require('../lib/network-request.js');
 const TraceOfTab = require('./trace-of-tab.js');
 const NetworkRecords = require('./network-records.js');
diff --git a/lighthouse-core/computed/trace-of-tab.js b/lighthouse-core/computed/trace-of-tab.js
index 7aa3ee252867..b8f572c89dd8 100644
--- a/lighthouse-core/computed/trace-of-tab.js
+++ b/lighthouse-core/computed/trace-of-tab.js
@@ -6,7 +6,34 @@
 'use strict';
 
 const makeComputedArtifact = require('./computed-artifact.js');
-const TraceOfTab_ = require('../lib/tracehouse/trace-of-tab.js');
+const LHError = require('../lib/lh-error.js');
+const TraceProcessor = require('../lib/tracehouse/trace-processor.js');
+
+// TraceProcessor throws generic errors, but we'd like our special localized and code-specific LHError
+// objects to be thrown instead.
+class LHTraceProcessor extends TraceProcessor {
+  /**
+   * @return {Error}
+   */
+  static createNoNavstartError() {
+    return new LHError(LHError.errors.NO_NAVSTART);
+  }
+
+  /**
+   * @return {Error}
+   */
+  static createNoFirstContentfulPaintError() {
+    return new LHError(LHError.errors.NO_FCP);
+  }
+
+  /**
+   * @return {Error}
+   */
+  static createNoTracingStartedError() {
+    return new LHError(LHError.errors.NO_TRACING_STARTED);
+  }
+}
+
 
 class TraceOfTab {
   /**
@@ -16,7 +43,7 @@ class TraceOfTab {
    * @return {Promise<LH.Artifacts.TraceOfTab>}
   */
   static async compute_(trace) {
-    return TraceOfTab_.compute(trace);
+    return LHTraceProcessor.computeTraceOfTab(trace);
   }
 }
 
diff --git a/lighthouse-core/lib/minify-trace.js b/lighthouse-core/lib/minify-trace.js
index 0ff5bd8f34d5..afda69099d49 100644
--- a/lighthouse-core/lib/minify-trace.js
+++ b/lighthouse-core/lib/minify-trace.js
@@ -12,11 +12,10 @@
  *  See the following files for necessary events:
  *    - lighthouse-core/computed/page-dependency-graph.js
  *    - lighthouse-core/lib/dependency-graph/cpu-node.js
- *    - lighthouse-core/lib/tracehouse/trace-of-tab.js
- *    - lighthouse-core/lib/tracehouse/tracing-processor.js
+ *    - lighthouse-core/lib/tracehouse/trace-processor.js
  */
 
-const TracingProcessor = require('./tracehouse/tracing-processor.js');
+const TracingProcessor = require('./tracehouse/trace-processor.js');
 
 const toplevelTaskNames = new Set([
   'RunTask', // m71+
diff --git a/lighthouse-core/lib/tracehouse/trace-processor.js b/lighthouse-core/lib/tracehouse/trace-processor.js
index 65cbc08de3de..2bc4c6feeca6 100644
--- a/lighthouse-core/lib/tracehouse/trace-processor.js
+++ b/lighthouse-core/lib/tracehouse/trace-processor.js
@@ -17,19 +17,49 @@
  */
 
 const log = require('lighthouse-logger');
-const TracingProcessor = require('./tracing-processor.js');
-const LHError = require('../lh-error.js');
-const Sentry = require('../sentry.js');
 
 const ACCEPTABLE_NAVIGATION_URL_REGEX = /^(chrome|https?):/;
 
-class TraceOfTab {
+// The ideal input response latency, the time between the input task and the
+// first frame of the response.
+const BASE_RESPONSE_LATENCY = 16;
+// m71+ We added RunTask to `disabled-by-default-lighthouse`
+const SCHEDULABLE_TASK_TITLE_LH = 'RunTask';
+// m69-70 DoWork is different and we now need RunTask, see https://bugs.chromium.org/p/chromium/issues/detail?id=871204#c11
+const SCHEDULABLE_TASK_TITLE_ALT1 = 'ThreadControllerImpl::RunTask';
+// In m66-68 refactored to this task title, https://crrev.com/c/883346
+const SCHEDULABLE_TASK_TITLE_ALT2 = 'ThreadControllerImpl::DoWork';
+// m65 and earlier
+const SCHEDULABLE_TASK_TITLE_ALT3 = 'TaskQueueManager::ProcessTaskFromWorkQueue';
+
+class TraceProcessor {
+  /**
+   * @return {Error}
+   */
+  static createNoNavstartError() {
+    return new Error('No navigationStart event found');
+  }
+
+  /**
+   * @return {Error}
+   */
+  static createNoFirstContentfulPaintError() {
+    return new Error('No firstContentfulPaint event found');
+  }
+
+  /**
+   * @return {Error}
+   */
+  static createNoTracingStartedError() {
+    return new Error('No tracingStartedInBrowser event found');
+  }
+
   /**
    * Returns true if the event is a navigation start event of a document whose URL seems valid.
    *
    * @param {LH.TraceEvent} event
    */
-  static isNavigationStartOfInterest(event) {
+  static _isNavigationStartOfInterest(event) {
     return event.name === 'navigationStart' &&
       (!event.args.data || !event.args.data.documentLoaderURL ||
         ACCEPTABLE_NAVIGATION_URL_REGEX.test(event.args.data.documentLoaderURL));
@@ -39,7 +69,7 @@ class TraceOfTab {
    * @param {LH.TraceEvent[]} traceEvents
    * @param {(e: LH.TraceEvent) => boolean} filter
    */
-  static filteredStableSort(traceEvents, filter) {
+  static _filteredStableSort(traceEvents, filter) {
     // create an array of the indices that we want to keep
     const indices = [];
     for (let srcIndex = 0; srcIndex < traceEvents.length; srcIndex++) {
@@ -63,6 +93,259 @@ class TraceOfTab {
     return sorted;
   }
 
+  /**
+   * There should *always* be at least one top level event, having 0 typically means something is
+   * drastically wrong with the trace and we should just give up early and loudly.
+   *
+   * @param {LH.TraceEvent[]} events
+   */
+  static assertHasToplevelEvents(events) {
+    const hasToplevelTask = events.some(this.isScheduleableTask);
+    if (!hasToplevelTask) {
+      throw new Error('Could not find any top level events');
+    }
+  }
+
+
+  /**
+   * Calculate duration at specified percentiles for given population of
+   * durations.
+   * If one of the durations overlaps the end of the window, the full
+   * duration should be in the duration array, but the length not included
+   * within the window should be given as `clippedLength`. For instance, if a
+   * 50ms duration occurs 10ms before the end of the window, `50` should be in
+   * the `durations` array, and `clippedLength` should be set to 40.
+   * @see https://docs.google.com/document/d/1b9slyaB9yho91YTOkAQfpCdULFkZM9LqsipcX3t7He8/preview
+   * @param {!Array<number>} durations Array of durations, sorted in ascending order.
+   * @param {number} totalTime Total time (in ms) of interval containing durations.
+   * @param {!Array<number>} percentiles Array of percentiles of interest, in ascending order.
+   * @param {number=} clippedLength Optional length clipped from a duration overlapping end of window. Default of 0.
+   * @return {!Array<{percentile: number, time: number}>}
+   * @private
+   */
+  static _riskPercentiles(durations, totalTime, percentiles, clippedLength = 0) {
+    let busyTime = 0;
+    for (let i = 0; i < durations.length; i++) {
+      busyTime += durations[i];
+    }
+    busyTime -= clippedLength;
+
+    // Start with idle time already complete.
+    let completedTime = totalTime - busyTime;
+    let duration = 0;
+    let cdfTime = completedTime;
+    const results = [];
+
+    let durationIndex = -1;
+    let remainingCount = durations.length + 1;
+    if (clippedLength > 0) {
+      // If there was a clipped duration, one less in count since one hasn't started yet.
+      remainingCount--;
+    }
+
+    // Find percentiles of interest, in order.
+    for (const percentile of percentiles) {
+      // Loop over durations, calculating a CDF value for each until it is above
+      // the target percentile.
+      const percentileTime = percentile * totalTime;
+      while (cdfTime < percentileTime && durationIndex < durations.length - 1) {
+        completedTime += duration;
+        remainingCount -= (duration < 0 ? -1 : 1);
+
+        if (clippedLength > 0 && clippedLength < durations[durationIndex + 1]) {
+          duration = -clippedLength;
+          clippedLength = 0;
+        } else {
+          durationIndex++;
+          duration = durations[durationIndex];
+        }
+
+        // Calculate value of CDF (multiplied by totalTime) for the end of this duration.
+        cdfTime = completedTime + Math.abs(duration) * remainingCount;
+      }
+
+      // Negative results are within idle time (0ms wait by definition), so clamp at zero.
+      results.push({
+        percentile,
+        time: Math.max(0, (percentileTime - completedTime) / remainingCount) +
+          BASE_RESPONSE_LATENCY,
+      });
+    }
+
+    return results;
+  }
+
+  /**
+   * Calculates the maximum queueing time (in ms) of high priority tasks for
+   * selected percentiles within a window of the main thread.
+   * @see https://docs.google.com/document/d/1b9slyaB9yho91YTOkAQfpCdULFkZM9LqsipcX3t7He8/preview
+   * @param {Array<ToplevelEvent>} events
+   * @param {number} startTime Start time (in ms relative to navstart) of range of interest.
+   * @param {number} endTime End time (in ms relative to navstart) of range of interest.
+   * @param {!Array<number>=} percentiles Optional array of percentiles to compute. Defaults to [0.5, 0.75, 0.9, 0.99, 1].
+   * @return {!Array<{percentile: number, time: number}>}
+   */
+  static getRiskToResponsiveness(
+      events,
+      startTime,
+      endTime,
+      percentiles = [0.5, 0.75, 0.9, 0.99, 1]
+  ) {
+    const totalTime = endTime - startTime;
+    percentiles.sort((a, b) => a - b);
+
+    const ret = this.getMainThreadTopLevelEventDurations(events, startTime, endTime);
+    return this._riskPercentiles(ret.durations, totalTime, percentiles,
+        ret.clippedLength);
+  }
+
+  /**
+   * Provides durations in ms of all main thread top-level events
+   * @param {Array<ToplevelEvent>} topLevelEvents
+   * @param {number} startTime Optional start time (in ms relative to navstart) of range of interest. Defaults to navstart.
+   * @param {number} endTime Optional end time (in ms relative to navstart) of range of interest. Defaults to trace end.
+   * @return {{durations: Array<number>, clippedLength: number}}
+   */
+  static getMainThreadTopLevelEventDurations(topLevelEvents, startTime = 0, endTime = Infinity) {
+    // Find durations of all slices in range of interest.
+    /** @type {Array<number>} */
+    const durations = [];
+    let clippedLength = 0;
+
+    for (const event of topLevelEvents) {
+      if (event.end < startTime || event.start > endTime) {
+        continue;
+      }
+
+      let duration = event.duration;
+      let eventStart = event.start;
+      if (eventStart < startTime) {
+        // Any part of task before window can be discarded.
+        eventStart = startTime;
+        duration = event.end - startTime;
+      }
+
+      if (event.end > endTime) {
+        // Any part of task after window must be clipped but accounted for.
+        clippedLength = duration - (endTime - eventStart);
+      }
+
+      durations.push(duration);
+    }
+    durations.sort((a, b) => a - b);
+
+    return {
+      durations,
+      clippedLength,
+    };
+  }
+
+  /**
+   * Provides the top level events on the main thread with timestamps in ms relative to navigation
+   * start.
+   * @param {LH.Artifacts.TraceOfTab} tabTrace
+   * @param {number=} startTime Optional start time (in ms relative to navstart) of range of interest. Defaults to navstart.
+   * @param {number=} endTime Optional end time (in ms relative to navstart) of range of interest. Defaults to trace end.
+   * @return {Array<ToplevelEvent>}
+   */
+  static getMainThreadTopLevelEvents(tabTrace, startTime = 0, endTime = Infinity) {
+    const topLevelEvents = [];
+    // note: mainThreadEvents is already sorted by event start
+    for (const event of tabTrace.mainThreadEvents) {
+      if (!this.isScheduleableTask(event) || !event.dur) continue;
+
+      const start = (event.ts - tabTrace.navigationStartEvt.ts) / 1000;
+      const end = (event.ts + event.dur - tabTrace.navigationStartEvt.ts) / 1000;
+      if (start > endTime || end < startTime) continue;
+
+      topLevelEvents.push({
+        start,
+        end,
+        duration: event.dur / 1000,
+      });
+    }
+
+    return topLevelEvents;
+  }
+
+  /**
+   * @param {LH.TraceEvent[]} events
+   * @return {{pid: number, tid: number, frameId: string}}
+   */
+  static findMainFrameIds(events) {
+    // Prefer the newer TracingStartedInBrowser event first, if it exists
+    const startedInBrowserEvt = events.find(e => e.name === 'TracingStartedInBrowser');
+    if (startedInBrowserEvt && startedInBrowserEvt.args.data &&
+        startedInBrowserEvt.args.data.frames) {
+      const mainFrame = startedInBrowserEvt.args.data.frames.find(frame => !frame.parent);
+      const frameId = mainFrame && mainFrame.frame;
+      const pid = mainFrame && mainFrame.processId;
+
+      const threadNameEvt = events.find(e => e.pid === pid && e.ph === 'M' &&
+        e.cat === '__metadata' && e.name === 'thread_name' && e.args.name === 'CrRendererMain');
+      const tid = threadNameEvt && threadNameEvt.tid;
+
+      if (pid && tid && frameId) {
+        return {
+          pid,
+          tid,
+          frameId,
+        };
+      }
+    }
+
+    // Support legacy browser versions that do not emit TracingStartedInBrowser event.
+    // The first TracingStartedInPage in the trace is definitely our renderer thread of interest
+    // Beware: the tracingStartedInPage event can appear slightly after a navigationStart
+    const startedInPageEvt = events.find(e => e.name === 'TracingStartedInPage');
+    if (startedInPageEvt && startedInPageEvt.args && startedInPageEvt.args.data) {
+      const frameId = startedInPageEvt.args.data.page;
+      if (frameId) {
+        return {
+          pid: startedInPageEvt.pid,
+          tid: startedInPageEvt.tid,
+          frameId,
+        };
+      }
+    }
+
+    // Support the case where everything else fails, see https://github.com/GoogleChrome/lighthouse/issues/7118.
+    // If we can't find either TracingStarted event, then we'll fallback to the first navStart that
+    // looks like it was loading the main frame with a real URL. Because the schema for this event
+    // has changed across Chrome versions, we'll be extra defensive about finding this case.
+    const navStartEvt = events.find(e => Boolean(e.name === 'navigationStart' && e.args &&
+      e.args.data && e.args.data.isLoadingMainFrame && e.args.data.documentLoaderURL));
+    // Find the first resource that was requested and make sure it agrees on the id.
+    const firstResourceSendEvt = events.find(e => e.name === 'ResourceSendRequest');
+    // We know that these properties exist if we found the events, but TSC doesn't.
+    if (navStartEvt && navStartEvt.args && navStartEvt.args.data &&
+        firstResourceSendEvt &&
+        firstResourceSendEvt.pid === navStartEvt.pid &&
+        firstResourceSendEvt.tid === navStartEvt.tid) {
+      const frameId = navStartEvt.args.frame;
+      if (frameId) {
+        return {
+          pid: navStartEvt.pid,
+          tid: navStartEvt.tid,
+          frameId,
+        };
+      }
+    }
+
+    throw this.createNoTracingStartedError();
+  }
+
+  /**
+   * @param {LH.TraceEvent} evt
+   * @return {boolean}
+   */
+  static isScheduleableTask(evt) {
+    return evt.name === SCHEDULABLE_TASK_TITLE_LH ||
+    evt.name === SCHEDULABLE_TASK_TITLE_ALT1 ||
+    evt.name === SCHEDULABLE_TASK_TITLE_ALT2 ||
+    evt.name === SCHEDULABLE_TASK_TITLE_ALT3;
+  }
+
 
   /**
    * Finds key trace events, identifies main process/thread, and returns timings of trace events
@@ -70,10 +353,10 @@ class TraceOfTab {
    * @param {LH.Trace} trace
    * @return {LH.Artifacts.TraceOfTab}
   */
-  static compute(trace) {
+  static computeTraceOfTab(trace) {
     // Parse the trace for our key events and sort them by timestamp. Note: sort
     // *must* be stable to keep events correctly nested.
-    const keyEvents = TraceOfTab.filteredStableSort(trace.traceEvents, e => {
+    const keyEvents = this._filteredStableSort(trace.traceEvents, e => {
       return e.cat.includes('blink.user_timing') ||
           e.cat.includes('loading') ||
           e.cat.includes('devtools.timeline') ||
@@ -81,14 +364,14 @@ class TraceOfTab {
     });
 
     // Find the inspected frame
-    const mainFrameIds = TracingProcessor.findMainFrameIds(keyEvents);
+    const mainFrameIds = this.findMainFrameIds(keyEvents);
 
     // Filter to just events matching the frame ID for sanity
     const frameEvents = keyEvents.filter(e => e.args.frame === mainFrameIds.frameId);
 
     // Our navStart will be the last frame navigation in the trace
-    const navigationStart = frameEvents.filter(TraceOfTab.isNavigationStartOfInterest).pop();
-    if (!navigationStart) throw new LHError(LHError.errors.NO_NAVSTART);
+    const navigationStart = frameEvents.filter(this._isNavigationStartOfInterest).pop();
+    if (!navigationStart) throw this.createNoNavstartError();
 
     // Find our first paint of this frame
     const firstPaint = frameEvents.find(e => e.name === 'firstPaint' && e.ts > navigationStart.ts);
@@ -97,7 +380,7 @@ class TraceOfTab {
     const firstContentfulPaint = frameEvents.find(
       e => e.name === 'firstContentfulPaint' && e.ts > navigationStart.ts
     );
-    if (!firstContentfulPaint) throw new LHError(LHError.errors.NO_FCP);
+    if (!firstContentfulPaint) throw this.createNoFirstContentfulPaintError();
 
     // fMP will follow at/after the FP
     let firstMeaningfulPaint = frameEvents.find(
@@ -110,9 +393,6 @@ class TraceOfTab {
     // In this case, we'll use the last firstMeaningfulPaintCandidate we can find.
     // However, if no candidates were found (a bogus trace, likely), we fail.
     if (!firstMeaningfulPaint) {
-      // Track this with Sentry since it's likely a bug we should investigate.
-      Sentry.captureMessage('No firstMeaningfulPaint found, using fallback', {level: 'warning'});
-
       const fmpCand = 'firstMeaningfulPaintCandidate';
       fmpFellBack = true;
       log.verbose('trace-of-tab', `No firstMeaningfulPaint found, falling back to last ${fmpCand}`);
@@ -130,8 +410,8 @@ class TraceOfTab {
 
     // subset all trace events to just our tab's process (incl threads other than main)
     // stable-sort events to keep them correctly nested.
-    const processEvents = TraceOfTab
-      .filteredStableSort(trace.traceEvents, e => e.pid === mainFrameIds.pid);
+    const processEvents = TraceProcessor
+      ._filteredStableSort(trace.traceEvents, e => e.pid === mainFrameIds.pid);
 
     const mainThreadEvents = processEvents
       .filter(e => e.tid === mainFrameIds.tid);
@@ -188,4 +468,12 @@ class TraceOfTab {
   }
 }
 
-module.exports = TraceOfTab;
+module.exports = TraceProcessor;
+
+
+/**
+ * @typedef ToplevelEvent
+ * @prop {number} start
+ * @prop {number} end
+ * @prop {number} duration
+ */
diff --git a/lighthouse-core/lib/tracehouse/tracing-processor.js b/lighthouse-core/lib/tracehouse/tracing-processor.js
deleted file mode 100644
index e3a11991c05f..000000000000
--- a/lighthouse-core/lib/tracehouse/tracing-processor.js
+++ /dev/null
@@ -1,285 +0,0 @@
-/**
- * @license Copyright 2016 Google Inc. All Rights Reserved.
- * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
- * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
- */
-'use strict';
-
-// The ideal input response latency, the time between the input task and the
-// first frame of the response.
-const BASE_RESPONSE_LATENCY = 16;
-// m71+ We added RunTask to `disabled-by-default-lighthouse`
-const SCHEDULABLE_TASK_TITLE_LH = 'RunTask';
-// m69-70 DoWork is different and we now need RunTask, see https://bugs.chromium.org/p/chromium/issues/detail?id=871204#c11
-const SCHEDULABLE_TASK_TITLE_ALT1 = 'ThreadControllerImpl::RunTask';
-// In m66-68 refactored to this task title, https://crrev.com/c/883346
-const SCHEDULABLE_TASK_TITLE_ALT2 = 'ThreadControllerImpl::DoWork';
-// m65 and earlier
-const SCHEDULABLE_TASK_TITLE_ALT3 = 'TaskQueueManager::ProcessTaskFromWorkQueue';
-
-
-const LHError = require('../lh-error.js');
-
-class TraceProcessor {
-  /**
-   * There should *always* be at least one top level event, having 0 typically means something is
-   * drastically wrong with the trace and we should just give up early and loudly.
-   *
-   * @param {LH.TraceEvent[]} events
-   */
-  static assertHasToplevelEvents(events) {
-    const hasToplevelTask = events.some(TraceProcessor.isScheduleableTask);
-    if (!hasToplevelTask) {
-      throw new Error('Could not find any top level events');
-    }
-  }
-
-
-  /**
-   * Calculate duration at specified percentiles for given population of
-   * durations.
-   * If one of the durations overlaps the end of the window, the full
-   * duration should be in the duration array, but the length not included
-   * within the window should be given as `clippedLength`. For instance, if a
-   * 50ms duration occurs 10ms before the end of the window, `50` should be in
-   * the `durations` array, and `clippedLength` should be set to 40.
-   * @see https://docs.google.com/document/d/1b9slyaB9yho91YTOkAQfpCdULFkZM9LqsipcX3t7He8/preview
-   * @param {!Array<number>} durations Array of durations, sorted in ascending order.
-   * @param {number} totalTime Total time (in ms) of interval containing durations.
-   * @param {!Array<number>} percentiles Array of percentiles of interest, in ascending order.
-   * @param {number=} clippedLength Optional length clipped from a duration overlapping end of window. Default of 0.
-   * @return {!Array<{percentile: number, time: number}>}
-   * @private
-   */
-  static _riskPercentiles(durations, totalTime, percentiles, clippedLength = 0) {
-    let busyTime = 0;
-    for (let i = 0; i < durations.length; i++) {
-      busyTime += durations[i];
-    }
-    busyTime -= clippedLength;
-
-    // Start with idle time already complete.
-    let completedTime = totalTime - busyTime;
-    let duration = 0;
-    let cdfTime = completedTime;
-    const results = [];
-
-    let durationIndex = -1;
-    let remainingCount = durations.length + 1;
-    if (clippedLength > 0) {
-      // If there was a clipped duration, one less in count since one hasn't started yet.
-      remainingCount--;
-    }
-
-    // Find percentiles of interest, in order.
-    for (const percentile of percentiles) {
-      // Loop over durations, calculating a CDF value for each until it is above
-      // the target percentile.
-      const percentileTime = percentile * totalTime;
-      while (cdfTime < percentileTime && durationIndex < durations.length - 1) {
-        completedTime += duration;
-        remainingCount -= (duration < 0 ? -1 : 1);
-
-        if (clippedLength > 0 && clippedLength < durations[durationIndex + 1]) {
-          duration = -clippedLength;
-          clippedLength = 0;
-        } else {
-          durationIndex++;
-          duration = durations[durationIndex];
-        }
-
-        // Calculate value of CDF (multiplied by totalTime) for the end of this duration.
-        cdfTime = completedTime + Math.abs(duration) * remainingCount;
-      }
-
-      // Negative results are within idle time (0ms wait by definition), so clamp at zero.
-      results.push({
-        percentile,
-        time: Math.max(0, (percentileTime - completedTime) / remainingCount) +
-          BASE_RESPONSE_LATENCY,
-      });
-    }
-
-    return results;
-  }
-
-  /**
-   * Calculates the maximum queueing time (in ms) of high priority tasks for
-   * selected percentiles within a window of the main thread.
-   * @see https://docs.google.com/document/d/1b9slyaB9yho91YTOkAQfpCdULFkZM9LqsipcX3t7He8/preview
-   * @param {Array<ToplevelEvent>} events
-   * @param {number} startTime Start time (in ms relative to navstart) of range of interest.
-   * @param {number} endTime End time (in ms relative to navstart) of range of interest.
-   * @param {!Array<number>=} percentiles Optional array of percentiles to compute. Defaults to [0.5, 0.75, 0.9, 0.99, 1].
-   * @return {!Array<{percentile: number, time: number}>}
-   */
-  static getRiskToResponsiveness(
-      events,
-      startTime,
-      endTime,
-      percentiles = [0.5, 0.75, 0.9, 0.99, 1]
-  ) {
-    const totalTime = endTime - startTime;
-    percentiles.sort((a, b) => a - b);
-
-    const ret = TraceProcessor.getMainThreadTopLevelEventDurations(events, startTime, endTime);
-    return TraceProcessor._riskPercentiles(ret.durations, totalTime, percentiles,
-        ret.clippedLength);
-  }
-
-  /**
-   * Provides durations in ms of all main thread top-level events
-   * @param {Array<ToplevelEvent>} topLevelEvents
-   * @param {number} startTime Optional start time (in ms relative to navstart) of range of interest. Defaults to navstart.
-   * @param {number} endTime Optional end time (in ms relative to navstart) of range of interest. Defaults to trace end.
-   * @return {{durations: Array<number>, clippedLength: number}}
-   */
-  static getMainThreadTopLevelEventDurations(topLevelEvents, startTime = 0, endTime = Infinity) {
-    // Find durations of all slices in range of interest.
-    /** @type {Array<number>} */
-    const durations = [];
-    let clippedLength = 0;
-
-    for (const event of topLevelEvents) {
-      if (event.end < startTime || event.start > endTime) {
-        continue;
-      }
-
-      let duration = event.duration;
-      let eventStart = event.start;
-      if (eventStart < startTime) {
-        // Any part of task before window can be discarded.
-        eventStart = startTime;
-        duration = event.end - startTime;
-      }
-
-      if (event.end > endTime) {
-        // Any part of task after window must be clipped but accounted for.
-        clippedLength = duration - (endTime - eventStart);
-      }
-
-      durations.push(duration);
-    }
-    durations.sort((a, b) => a - b);
-
-    return {
-      durations,
-      clippedLength,
-    };
-  }
-
-  /**
-   * Provides the top level events on the main thread with timestamps in ms relative to navigation
-   * start.
-   * @param {LH.Artifacts.TraceOfTab} tabTrace
-   * @param {number=} startTime Optional start time (in ms relative to navstart) of range of interest. Defaults to navstart.
-   * @param {number=} endTime Optional end time (in ms relative to navstart) of range of interest. Defaults to trace end.
-   * @return {Array<ToplevelEvent>}
-   */
-  static getMainThreadTopLevelEvents(tabTrace, startTime = 0, endTime = Infinity) {
-    const topLevelEvents = [];
-    // note: mainThreadEvents is already sorted by event start
-    for (const event of tabTrace.mainThreadEvents) {
-      if (!TraceProcessor.isScheduleableTask(event) || !event.dur) continue;
-
-      const start = (event.ts - tabTrace.navigationStartEvt.ts) / 1000;
-      const end = (event.ts + event.dur - tabTrace.navigationStartEvt.ts) / 1000;
-      if (start > endTime || end < startTime) continue;
-
-      topLevelEvents.push({
-        start,
-        end,
-        duration: event.dur / 1000,
-      });
-    }
-
-    return topLevelEvents;
-  }
-
-  /**
-   * @param {LH.TraceEvent[]} events
-   * @return {{pid: number, tid: number, frameId: string}}
-   */
-  static findMainFrameIds(events) {
-    // Prefer the newer TracingStartedInBrowser event first, if it exists
-    const startedInBrowserEvt = events.find(e => e.name === 'TracingStartedInBrowser');
-    if (startedInBrowserEvt && startedInBrowserEvt.args.data &&
-        startedInBrowserEvt.args.data.frames) {
-      const mainFrame = startedInBrowserEvt.args.data.frames.find(frame => !frame.parent);
-      const frameId = mainFrame && mainFrame.frame;
-      const pid = mainFrame && mainFrame.processId;
-
-      const threadNameEvt = events.find(e => e.pid === pid && e.ph === 'M' &&
-        e.cat === '__metadata' && e.name === 'thread_name' && e.args.name === 'CrRendererMain');
-      const tid = threadNameEvt && threadNameEvt.tid;
-
-      if (pid && tid && frameId) {
-        return {
-          pid,
-          tid,
-          frameId,
-        };
-      }
-    }
-
-    // Support legacy browser versions that do not emit TracingStartedInBrowser event.
-    // The first TracingStartedInPage in the trace is definitely our renderer thread of interest
-    // Beware: the tracingStartedInPage event can appear slightly after a navigationStart
-    const startedInPageEvt = events.find(e => e.name === 'TracingStartedInPage');
-    if (startedInPageEvt && startedInPageEvt.args && startedInPageEvt.args.data) {
-      const frameId = startedInPageEvt.args.data.page;
-      if (frameId) {
-        return {
-          pid: startedInPageEvt.pid,
-          tid: startedInPageEvt.tid,
-          frameId,
-        };
-      }
-    }
-
-    // Support the case where everything else fails, see https://github.com/GoogleChrome/lighthouse/issues/7118.
-    // If we can't find either TracingStarted event, then we'll fallback to the first navStart that
-    // looks like it was loading the main frame with a real URL. Because the schema for this event
-    // has changed across Chrome versions, we'll be extra defensive about finding this case.
-    const navStartEvt = events.find(e => Boolean(e.name === 'navigationStart' && e.args &&
-      e.args.data && e.args.data.isLoadingMainFrame && e.args.data.documentLoaderURL));
-    // Find the first resource that was requested and make sure it agrees on the id.
-    const firstResourceSendEvt = events.find(e => e.name === 'ResourceSendRequest');
-    // We know that these properties exist if we found the events, but TSC doesn't.
-    if (navStartEvt && navStartEvt.args && navStartEvt.args.data &&
-        firstResourceSendEvt &&
-        firstResourceSendEvt.pid === navStartEvt.pid &&
-        firstResourceSendEvt.tid === navStartEvt.tid) {
-      const frameId = navStartEvt.args.frame;
-      if (frameId) {
-        return {
-          pid: navStartEvt.pid,
-          tid: navStartEvt.tid,
-          frameId,
-        };
-      }
-    }
-
-    throw new LHError(LHError.errors.NO_TRACING_STARTED);
-  }
-
-  /**
-   * @param {LH.TraceEvent} evt
-   * @return {boolean}
-   */
-  static isScheduleableTask(evt) {
-    return evt.name === SCHEDULABLE_TASK_TITLE_LH ||
-    evt.name === SCHEDULABLE_TASK_TITLE_ALT1 ||
-    evt.name === SCHEDULABLE_TASK_TITLE_ALT2 ||
-    evt.name === SCHEDULABLE_TASK_TITLE_ALT3;
-  }
-}
-
-/**
- * @typedef ToplevelEvent
- * @prop {number} start
- * @prop {number} end
- * @prop {number} duration
- */
-
-module.exports = TraceProcessor;
diff --git a/lighthouse-core/test/computed/metrics/first-cpu-idle-test.js b/lighthouse-core/test/computed/metrics/first-cpu-idle-test.js
index cfb21da04bff..6233f46a4090 100644
--- a/lighthouse-core/test/computed/metrics/first-cpu-idle-test.js
+++ b/lighthouse-core/test/computed/metrics/first-cpu-idle-test.js
@@ -6,7 +6,7 @@
 'use strict';
 
 const FirstCPUIdle = require('../../../computed/metrics/first-cpu-idle.js');
-const TracingProcessor = require('../../../lib/tracehouse/tracing-processor.js');
+const TracingProcessor = require('../../../lib/tracehouse/trace-processor.js');
 
 const tooShortTrace = require('../../fixtures/traces/progressive-app.json');
 const acceptableTrace = require('../../fixtures/traces/progressive-app-m60.json');
diff --git a/lighthouse-core/test/computed/trace-of-tab-test.js b/lighthouse-core/test/computed/trace-of-tab-test.js
index 4c14d71cab83..3b337276c6b1 100644
--- a/lighthouse-core/test/computed/trace-of-tab-test.js
+++ b/lighthouse-core/test/computed/trace-of-tab-test.js
@@ -9,6 +9,8 @@
 
 const TraceOfTab = require('../../computed/trace-of-tab.js');
 const pwaTrace = require('../fixtures/traces/progressive-app-m60.json');
+const noFCPtrace = require('../fixtures/traces/airhorner_no_fcp.json');
+const noNavStartTrace = require('../fixtures/traces/no_navstart_event.json');
 
 describe('TraceOfTabComputed', () => {
   it('computes the artifact', async () => {
@@ -122,4 +124,34 @@ describe('TraceOfTabComputed', () => {
       },
     });
   });
+
+  it('fails with NO_NAVSTART', async () => {
+    const context = {computedCache: new Map()};
+    await expect(TraceOfTab.request(noNavStartTrace, context))
+      .rejects.toMatchObject({code: 'NO_NAVSTART'});
+  });
+
+  it('fails with NO_FCP', async () => {
+    const context = {computedCache: new Map()};
+    await expect(TraceOfTab.request(noFCPtrace, context))
+      .rejects.toMatchObject({code: 'NO_FCP'});
+  });
+
+  it('fails with NO_TRACING_STARTED', async () => {
+    const context = {computedCache: new Map()};
+    const noTracingStartedTrace = {
+      traceEvents: pwaTrace.traceEvents.filter(event => {
+        if (event.name === 'TracingStartedInBrowser' ||
+            event.name === 'TracingStartedInPage' ||
+            event.name === 'ResourceSendRequest') {
+          return false;
+        }
+
+        return true;
+      }),
+    };
+
+    await expect(TraceOfTab.request(noTracingStartedTrace, context))
+      .rejects.toMatchObject({code: 'NO_TRACING_STARTED'});
+  });
 });
diff --git a/lighthouse-core/test/lib/tracehouse/main-thread-tasks-test.js b/lighthouse-core/test/lib/tracehouse/main-thread-tasks-test.js
index fbfdc5234c06..d73120baa78b 100644
--- a/lighthouse-core/test/lib/tracehouse/main-thread-tasks-test.js
+++ b/lighthouse-core/test/lib/tracehouse/main-thread-tasks-test.js
@@ -8,10 +8,10 @@
 /* eslint-env jest */
 
 const MainThreadTasks = require('../../../lib/tracehouse/main-thread-tasks.js');
-const TraceOfTab = require('../../../lib/tracehouse/trace-of-tab.js');
+const TraceProcessor = require('../../../lib/tracehouse/trace-processor.js');
 const taskGroups = require('../../../lib/tracehouse/task-groups.js').taskGroups;
 const pwaTrace = require('../../fixtures/traces/progressive-app.json');
-const TracingProcessor = require('../../../lib/tracehouse/tracing-processor.js');
+const TracingProcessor = require('../../../lib/tracehouse/trace-processor.js');
 const assert = require('assert');
 
 describe('Main Thread Tasks', () => {
@@ -31,7 +31,7 @@ describe('Main Thread Tasks', () => {
   });
 
   function run(trace) {
-    const {mainThreadEvents, timestamps} = TraceOfTab.compute(trace);
+    const {mainThreadEvents, timestamps} = TraceProcessor.computeTraceOfTab(trace);
     return MainThreadTasks.getMainThreadTasks(mainThreadEvents, timestamps.traceEnd);
   }
 
diff --git a/lighthouse-core/test/lib/tracehouse/trace-processor-test.js b/lighthouse-core/test/lib/tracehouse/trace-processor-test.js
index a8fee73408fd..66e1204d0c1c 100644
--- a/lighthouse-core/test/lib/tracehouse/trace-processor-test.js
+++ b/lighthouse-core/test/lib/tracehouse/trace-processor-test.js
@@ -5,10 +5,11 @@
  */
 'use strict';
 
-const TraceOfTab = require('../../../lib/tracehouse/trace-of-tab.js');
+const TraceProcessor = require('../../../lib/tracehouse/trace-processor.js');
 
 const assert = require('assert');
 const fs = require('fs');
+const pwaTrace = require('../../fixtures/traces/progressive-app.json');
 const badNavStartTrace = require('../../fixtures/traces/bad-nav-start-ts.json');
 const lateTracingStartedTrace = require('../../fixtures/traces/tracingstarted-after-navstart.json');
 const noTracingStartedTrace = require('../../fixtures/traces/no-tracingstarted-m74.json');
@@ -19,191 +20,425 @@ const noNavStartTrace = require('../../fixtures/traces/no_navstart_event.json');
 const backgroundTabTrace = require('../../fixtures/traces/backgrounded-tab-missing-paints.json');
 
 /* eslint-env jest */
-describe('Trace of Tab computed artifact:', () => {
-  it('gathers the events from the tab\'s process', () => {
-    const trace = TraceOfTab.compute(lateTracingStartedTrace);
 
-    const firstEvt = trace.processEvents[0];
-    trace.processEvents.forEach(evt => {
-      assert.equal(evt.pid, firstEvt.pid, 'A traceEvent is found from another process');
+describe('TraceProcessor', () => {
+  describe('_riskPercentiles', () => {
+    const defaultPercentiles = [0, 0.25, 0.5, 0.75, 0.9, 0.99, 1];
+
+    /**
+     * Create a riskPercentiles result object by matching the values in percentiles
+     * and times.
+     * @param {!Array<number>} percentiles
+     * @param {!Array<number>} times
+     * @return {!Array<{percentile: number, time: number}>}
+     */
+    function createRiskPercentiles(percentiles, times) {
+      return percentiles.map((percentile, index) => {
+        return {
+          percentile,
+          time: times[index],
+        };
+      });
+    }
+
+    it('correctly calculates percentiles of no tasks', () => {
+      const results = TraceProcessor._riskPercentiles([], 100, defaultPercentiles);
+      const expected = createRiskPercentiles(defaultPercentiles, [16, 16, 16, 16, 16, 16, 16]);
+      assert.deepEqual(results, expected);
     });
 
-    assert.ok(firstEvt.pid === trace.mainFrameIds.pid);
-    assert.ok(firstEvt.pid === trace.navigationStartEvt.pid);
-    assert.ok(firstEvt.pid === trace.firstContentfulPaintEvt.pid);
-    assert.ok(firstEvt.pid === trace.firstMeaningfulPaintEvt.pid);
-  });
+    it('correctly calculates percentiles of a single task with idle time', () => {
+      const results = TraceProcessor._riskPercentiles([50], 100, defaultPercentiles);
+      const expected = createRiskPercentiles(defaultPercentiles, [16, 16, 16, 41, 56, 65, 66]);
+      assert.deepEqual(results, expected);
+    });
+
+    it('correctly calculates percentiles of a single task with no idle time', () => {
+      const results = TraceProcessor._riskPercentiles([50], 50, defaultPercentiles);
+      const expected = createRiskPercentiles(defaultPercentiles,
+          [16, 28.5, 41, 53.5, 61, 65.5, 66]);
+      assert.deepEqual(results, expected);
+    });
+
+    it('correctly calculates percentiles of several equal-length tasks', () => {
+      const results = TraceProcessor._riskPercentiles([50, 50, 50, 50], 400, defaultPercentiles);
+      const expected = createRiskPercentiles(defaultPercentiles, [16, 16, 16, 41, 56, 65, 66]);
+      assert.deepEqual(results, expected);
+    });
+
+    it('correctly calculates percentiles of tasks including zero-length durations', () => {
+      const results = TraceProcessor._riskPercentiles([0, 0, 0, 10, 20, 20, 30, 30, 120], 320,
+          defaultPercentiles);
+      const expected = createRiskPercentiles(defaultPercentiles, [16, 16, 28, 56, 104, 132.8, 136]);
+      assert.deepEqual(results, expected);
+    });
+
+    // Three tasks of one second each, all within a five-second window.
+    // Mean Queueing Time of 300ms.
+    it('correctly calculates percentiles of three one-second tasks in a five-second window', () => {
+      const results = TraceProcessor._riskPercentiles([1000, 1000, 1000], 5000,
+          defaultPercentiles, 0);
+      // Round to hundredths to simplify floating point comparison.
+      results.forEach(result => {
+        result.time = Number(result.time.toFixed(2));
+      });
+
+      const expected = createRiskPercentiles(defaultPercentiles,
+          [16, 16, 182.67, 599.33, 849.33, 999.33, 1016]);
+      assert.deepEqual(results, expected);
+    });
+
+    it('correctly calculates percentiles of tasks with a clipped task', () => {
+      const results = TraceProcessor._riskPercentiles([10, 20, 50, 60, 90, 100], 300,
+          defaultPercentiles, 30);
+      // Round to hundredths to simplify floating point comparison.
+      results.forEach(result => {
+        result.time = Number(result.time.toFixed(2));
+      });
+
+      const expected = createRiskPercentiles(defaultPercentiles,
+          [16, 32.25, 53.5, 74.33, 96, 113, 116]);
+      assert.deepEqual(results, expected);
+    });
+
+    // One 20 second long task over three five-second windows.
+    it('correctly calculates percentiles of single task over multiple windows', () => {
+      // Starts 3 seconds into the first window. Mean Queueing Time = 7600ms.
+      const TASK_LENGTH = 20000;
+      const results1 = TraceProcessor._riskPercentiles([TASK_LENGTH], 5000,
+          defaultPercentiles, TASK_LENGTH - 2000);
+      const expected1 = createRiskPercentiles(defaultPercentiles,
+          [16, 16, 16, 18766, 19516, 19966, 20016]);
+      assert.deepEqual(results1, expected1);
 
-  it('computes timings of each event', () => {
-    const trace = TraceOfTab.compute(lateTracingStartedTrace);
-    assert.equal(Math.round(trace.timings.navigationStart), 0);
-    assert.equal(Math.round(trace.timings.firstPaint), 80);
-    assert.equal(Math.round(trace.timings.firstContentfulPaint), 80);
-    assert.equal(Math.round(trace.timings.firstMeaningfulPaint), 530);
-    assert.equal(Math.round(trace.timings.traceEnd), 649);
+      // Starts 2 seconds before and ends 13 seconds after. Mean Queueing Time = 15500ms.
+      const results2 = TraceProcessor._riskPercentiles([TASK_LENGTH - 2000], 5000,
+          defaultPercentiles, TASK_LENGTH - 7000);
+      const expected2 = createRiskPercentiles(defaultPercentiles,
+          [16, 14266, 15516, 16766, 17516, 17966, 18016]);
+      assert.deepEqual(results2, expected2);
+
+      // Starts 17 seconds before and ends 3 seconds into the window. Mean Queueing Time = 900ms.
+      const results3 = TraceProcessor._riskPercentiles([TASK_LENGTH - 17000], 5000,
+          defaultPercentiles, 0);
+      const expected3 = createRiskPercentiles(defaultPercentiles,
+          [16, 16, 516, 1766, 2516, 2966, 3016]);
+      assert.deepEqual(results3, expected3);
+    });
+
+    it('correctly calculates with a task shorter than the clipped length of another', () => {
+      const results = TraceProcessor._riskPercentiles([40, 100], 100,
+          defaultPercentiles, 50);
+      const expected = createRiskPercentiles(defaultPercentiles,
+          [16, 31, 56, 91, 106, 115, 116]);
+      assert.deepEqual(results, expected);
+    });
+
+    it('correctly calculates with a task clipped completely', () => {
+      const results = TraceProcessor._riskPercentiles([40, 100], 100,
+          defaultPercentiles, 100);
+      const expected = createRiskPercentiles(defaultPercentiles,
+          [16, 16, 16, 31, 46, 55, 56]);
+      assert.deepEqual(results, expected);
+    });
+
+    it('does not divide by zero when duration sum is less than whole', () => {
+      // Durations chosen such that, due to floating point error:
+      //   const idleTime = totalTime - (duration1 + duration2);
+      //   (idleTime + duration1 + duration2) < totalTime
+      const duration1 = 67 / 107;
+      const duration2 = 67 / 53;
+      const totalTime = 10;
+      const results = TraceProcessor._riskPercentiles([duration1, duration2], totalTime, [1], 0);
+      const expected = createRiskPercentiles([1], [16 + duration2]);
+      assert.deepEqual(results, expected);
+    });
   });
 
-  it('computes timestamps of each event', () => {
-    const trace = TraceOfTab.compute(lateTracingStartedTrace);
-    assert.equal(Math.round(trace.timestamps.navigationStart), 29343540951);
-    assert.equal(Math.round(trace.timestamps.firstPaint), 29343620997);
-    assert.equal(Math.round(trace.timestamps.firstContentfulPaint), 29343621005);
-    assert.equal(Math.round(trace.timestamps.firstMeaningfulPaint), 29344070867);
-    assert.equal(Math.round(trace.timestamps.traceEnd), 29344190223);
+  describe('getMainThreadTopLevelEvents', () => {
+    it('gets durations of top-level tasks', () => {
+      const trace = {traceEvents: pwaTrace};
+      const tabTrace = TraceProcessor.computeTraceOfTab(trace);
+      const ret = TraceProcessor.getMainThreadTopLevelEvents(tabTrace);
+
+      assert.equal(ret.length, 645);
+    });
+
+    it('filters events based on start and end times', () => {
+      const baseTime = 20000 * 1000;
+      const name = 'TaskQueueManager::ProcessTaskFromWorkQueue';
+      const tabTrace = {
+        navigationStartEvt: {ts: baseTime},
+        mainThreadEvents: [
+          // 15ms to 25ms
+          {ts: baseTime + 15 * 1000, dur: 10 * 1000, name},
+          // 40ms to 60ms
+          {ts: baseTime + 40 * 1000, dur: 20 * 1000, name},
+          // 1000ms to 2000ms
+          {ts: baseTime + 1000 * 1000, dur: 1000 * 1000, name},
+          // 4000ms to 4020ms
+          {ts: baseTime + 4000 * 1000, dur: 20 * 1000, name},
+        ],
+      };
+
+      const ret = TraceProcessor.getMainThreadTopLevelEvents(
+        tabTrace,
+        50,
+        1500
+      );
+      assert.equal(ret.length, 2);
+      assert.equal(ret[0].start, 40);
+      assert.equal(ret[0].end, 60);
+      assert.equal(ret[0].duration, 20);
+      assert.equal(ret[1].start, 1000);
+      assert.equal(ret[1].end, 2000);
+      assert.equal(ret[1].duration, 1000);
+    });
   });
 
-  describe('finds correct FMP', () => {
-    it('if there was a tracingStartedInPage after the frame\'s navStart', () => {
-      const trace = TraceOfTab.compute(lateTracingStartedTrace);
-      assert.equal(trace.mainFrameIds.frameId, '0x163736997740');
-      assert.equal(trace.navigationStartEvt.ts, 29343540951);
-      assert.equal(trace.firstContentfulPaintEvt.ts, 29343621005);
-      assert.equal(trace.firstMeaningfulPaintEvt.ts, 29344070867);
-      assert.ok(!trace.fmpFellBack);
-    });
-
-    it('if there was a tracingStartedInPage after the frame\'s navStart #2', () => {
-      const trace = TraceOfTab.compute(badNavStartTrace);
-      assert.equal(trace.mainFrameIds.frameId, '0x89915541e48');
-      assert.equal(trace.navigationStartEvt.ts, 8885424467);
-      assert.equal(trace.firstContentfulPaintEvt.ts, 8886056886);
-      assert.equal(trace.firstMeaningfulPaintEvt.ts, 8886056891);
-      assert.ok(!trace.fmpFellBack);
-    });
-
-    it('if it appears slightly before the fCP', () => {
-      const trace = TraceOfTab.compute(preactTrace);
-      assert.equal(trace.mainFrameIds.frameId, '0x25edaa521e58');
-      assert.equal(trace.navigationStartEvt.ts, 1805796384607);
-      assert.equal(trace.firstContentfulPaintEvt.ts, 1805797263653);
-      assert.equal(trace.firstMeaningfulPaintEvt.ts, 1805797262960);
-      assert.ok(!trace.fmpFellBack);
-    });
-
-    it('from candidates if no defined FMP exists', () => {
-      const trace = TraceOfTab.compute(noFMPtrace);
-      assert.equal(trace.mainFrameIds.frameId, '0x150343381dd0');
-      assert.equal(trace.navigationStartEvt.ts, 2146735807738);
-      assert.equal(trace.firstContentfulPaintEvt.ts, 2146737302468);
-      assert.equal(trace.firstMeaningfulPaintEvt.ts, 2146740268666);
-      assert.ok(trace.fmpFellBack);
+  describe('getMainThreadTopLevelEventDurations', () => {
+    it('gets durations of top-level tasks', async () => {
+      const trace = {traceEvents: pwaTrace};
+      const tabTrace = TraceProcessor.computeTraceOfTab(trace);
+      const events = TraceProcessor.getMainThreadTopLevelEvents(tabTrace);
+      const ret = TraceProcessor.getMainThreadTopLevelEventDurations(events);
+      const durations = ret.durations;
+
+      function getDurationFromIndex(index) {
+        return Number(durations[index].toFixed(2));
+      }
+
+      assert.equal(durations.filter(dur => isNaN(dur)).length, 0, 'NaN found');
+      assert.equal(durations.length, 645);
+
+      const sum = durations.reduce((a, b) => a + b);
+      assert.equal(Math.round(sum), 386);
+
+      assert.equal(getDurationFromIndex(50), 0.01);
+      assert.equal(getDurationFromIndex(300), 0.04);
+      assert.equal(getDurationFromIndex(400), 0.07);
+      assert.equal(getDurationFromIndex(durations.length - 3), 26.01);
+      assert.equal(getDurationFromIndex(durations.length - 2), 36.9);
+      assert.equal(getDurationFromIndex(durations.length - 1), 38.53);
     });
   });
 
-  it('handles traces missing a paints (captured in background tab)', () => {
-    const trace = TraceOfTab.compute(backgroundTabTrace);
-    assert.equal(trace.mainFrameIds.frameId, '0x53965941e30');
-    assert.notEqual(trace.navigationStartEvt.ts, 1966813346529, 'picked wrong frame');
-    assert.notEqual(trace.navigationStartEvt.ts, 1966813520313, 'picked wrong frame');
-    assert.equal(
-      trace.navigationStartEvt.ts,
-      1966813258737,
-      'didnt select navStart event with same timestamp as usertiming measure'
-    );
-    assert.equal(trace.firstMeaningfulPaintEvt, undefined, 'bad fmp');
+  describe('getRiskToResponsiveness', () => {
+    let oldFn;
+    // monkeypatch _riskPercentiles to test just getRiskToResponsiveness
+    beforeEach(() => {
+      oldFn = TraceProcessor._riskPercentiles;
+      TraceProcessor._riskPercentiles = (durations, totalTime, percentiles, clippedLength) => {
+        return {
+          durations, totalTime, percentiles, clippedLength,
+        };
+      };
+    });
+
+    it('compute correct defaults', async () => {
+      const trace = {traceEvents: pwaTrace};
+      const tabTrace = TraceProcessor.computeTraceOfTab(trace);
+      const events = TraceProcessor.getMainThreadTopLevelEvents(tabTrace);
+      const ret = TraceProcessor.getRiskToResponsiveness(events, 0, tabTrace.timings.traceEnd);
+      assert.equal(ret.durations.length, 645);
+      assert.equal(Math.round(ret.totalTime), 2143);
+      assert.equal(ret.clippedLength, 0);
+      assert.deepEqual(ret.percentiles, [0.5, 0.75, 0.9, 0.99, 1]);
+    });
+
+    afterEach(() => {
+      TraceProcessor._riskPercentiles = oldFn;
+    });
   });
 
-  it('handles traces with TracingStartedInBrowser events', () => {
-    const tracingStartedInBrowserTrace = {
-      'traceEvents': [{
-        'pid': 69850,
-        'tid': 69850,
-        'ts': 2193564729582,
-        'ph': 'I',
-        'cat': 'disabled-by-default-devtools.timeline',
-        'name': 'TracingStartedInBrowser',
-        'args': {'data': {
-          'frameTreeNodeId': 1,
-          'frames': [{
+  describe('computeTraceOfTab', () => {
+    it('gathers the events from the tab\'s process', () => {
+      const trace = TraceProcessor.computeTraceOfTab(lateTracingStartedTrace);
+
+      const firstEvt = trace.processEvents[0];
+      trace.processEvents.forEach(evt => {
+        assert.equal(evt.pid, firstEvt.pid, 'A traceEvent is found from another process');
+      });
+
+      assert.ok(firstEvt.pid === trace.mainFrameIds.pid);
+      assert.ok(firstEvt.pid === trace.navigationStartEvt.pid);
+      assert.ok(firstEvt.pid === trace.firstContentfulPaintEvt.pid);
+      assert.ok(firstEvt.pid === trace.firstMeaningfulPaintEvt.pid);
+    });
+
+    it('computes timings of each event', () => {
+      const trace = TraceProcessor.computeTraceOfTab(lateTracingStartedTrace);
+      assert.equal(Math.round(trace.timings.navigationStart), 0);
+      assert.equal(Math.round(trace.timings.firstPaint), 80);
+      assert.equal(Math.round(trace.timings.firstContentfulPaint), 80);
+      assert.equal(Math.round(trace.timings.firstMeaningfulPaint), 530);
+      assert.equal(Math.round(trace.timings.traceEnd), 649);
+    });
+
+    it('computes timestamps of each event', () => {
+      const trace = TraceProcessor.computeTraceOfTab(lateTracingStartedTrace);
+      assert.equal(Math.round(trace.timestamps.navigationStart), 29343540951);
+      assert.equal(Math.round(trace.timestamps.firstPaint), 29343620997);
+      assert.equal(Math.round(trace.timestamps.firstContentfulPaint), 29343621005);
+      assert.equal(Math.round(trace.timestamps.firstMeaningfulPaint), 29344070867);
+      assert.equal(Math.round(trace.timestamps.traceEnd), 29344190223);
+    });
+
+    describe('finds correct FMP', () => {
+      it('if there was a tracingStartedInPage after the frame\'s navStart', () => {
+        const trace = TraceProcessor.computeTraceOfTab(lateTracingStartedTrace);
+        assert.equal(trace.mainFrameIds.frameId, '0x163736997740');
+        assert.equal(trace.navigationStartEvt.ts, 29343540951);
+        assert.equal(trace.firstContentfulPaintEvt.ts, 29343621005);
+        assert.equal(trace.firstMeaningfulPaintEvt.ts, 29344070867);
+        assert.ok(!trace.fmpFellBack);
+      });
+
+      it('if there was a tracingStartedInPage after the frame\'s navStart #2', () => {
+        const trace = TraceProcessor.computeTraceOfTab(badNavStartTrace);
+        assert.equal(trace.mainFrameIds.frameId, '0x89915541e48');
+        assert.equal(trace.navigationStartEvt.ts, 8885424467);
+        assert.equal(trace.firstContentfulPaintEvt.ts, 8886056886);
+        assert.equal(trace.firstMeaningfulPaintEvt.ts, 8886056891);
+        assert.ok(!trace.fmpFellBack);
+      });
+
+      it('if it appears slightly before the fCP', () => {
+        const trace = TraceProcessor.computeTraceOfTab(preactTrace);
+        assert.equal(trace.mainFrameIds.frameId, '0x25edaa521e58');
+        assert.equal(trace.navigationStartEvt.ts, 1805796384607);
+        assert.equal(trace.firstContentfulPaintEvt.ts, 1805797263653);
+        assert.equal(trace.firstMeaningfulPaintEvt.ts, 1805797262960);
+        assert.ok(!trace.fmpFellBack);
+      });
+
+      it('from candidates if no defined FMP exists', () => {
+        const trace = TraceProcessor.computeTraceOfTab(noFMPtrace);
+        assert.equal(trace.mainFrameIds.frameId, '0x150343381dd0');
+        assert.equal(trace.navigationStartEvt.ts, 2146735807738);
+        assert.equal(trace.firstContentfulPaintEvt.ts, 2146737302468);
+        assert.equal(trace.firstMeaningfulPaintEvt.ts, 2146740268666);
+        assert.ok(trace.fmpFellBack);
+      });
+    });
+
+    it('handles traces missing a paints (captured in background tab)', () => {
+      const trace = TraceProcessor.computeTraceOfTab(backgroundTabTrace);
+      assert.equal(trace.mainFrameIds.frameId, '0x53965941e30');
+      assert.notEqual(trace.navigationStartEvt.ts, 1966813346529, 'picked wrong frame');
+      assert.notEqual(trace.navigationStartEvt.ts, 1966813520313, 'picked wrong frame');
+      assert.equal(
+        trace.navigationStartEvt.ts,
+        1966813258737,
+        'didnt select navStart event with same timestamp as usertiming measure'
+      );
+      assert.equal(trace.firstMeaningfulPaintEvt, undefined, 'bad fmp');
+    });
+
+    it('handles traces with TracingStartedInBrowser events', () => {
+      const tracingStartedInBrowserTrace = {
+        'traceEvents': [{
+          'pid': 69850,
+          'tid': 69850,
+          'ts': 2193564729582,
+          'ph': 'I',
+          'cat': 'disabled-by-default-devtools.timeline',
+          'name': 'TracingStartedInBrowser',
+          'args': {'data': {
+            'frameTreeNodeId': 1,
+            'frames': [{
+              'frame': 'B192D1F3355A6F961EC8F0B01623C1FB',
+              'url': 'http://www.example.com/',
+              'name': '',
+              'processId': 69920,
+            }],
+          }},
+          'tts': 1085165,
+          's': 't',
+        }, {
+          'pid': 69920,
+          'tid': 1,
+          'ts': 2193564790059,
+          'ph': 'R',
+          'cat': 'blink.user_timing',
+          'name': 'navigationStart',
+          'args': {
             'frame': 'B192D1F3355A6F961EC8F0B01623C1FB',
-            'url': 'http://www.example.com/',
-            'name': '',
-            'processId': 69920,
-          }],
-        }},
-        'tts': 1085165,
-        's': 't',
-      }, {
-        'pid': 69920,
-        'tid': 1,
-        'ts': 2193564790059,
-        'ph': 'R',
-        'cat': 'blink.user_timing',
-        'name': 'navigationStart',
-        'args': {
-          'frame': 'B192D1F3355A6F961EC8F0B01623C1FB',
-          'data': {
-            'documentLoaderURL': 'http://www.example.com/',
-            'isLoadingMainFrame': true,
+            'data': {
+              'documentLoaderURL': 'http://www.example.com/',
+              'isLoadingMainFrame': true,
+            },
           },
-        },
-        'tts': 141371,
-      }, {
-        'pid': 69920,
-        'tid': 1,
-        'ts': 2193564790060,
-        'ph': 'R',
-        'cat': 'loading,rail,devtools.timeline',
-        'name': 'firstContentfulPaint',
-        'args': {
-          'frame': 'B192D1F3355A6F961EC8F0B01623C1FB',
-        },
-        'tts': 141372,
-      }, {
-        'pid': 69920,
-        'tid': 1,
-        'ts': 0,
-        'ph': 'M',
-        'cat': '__metadata',
-        'name': 'thread_name',
-        'args': {'name': 'CrRendererMain'},
-      }]};
-    const trace = TraceOfTab.compute(tracingStartedInBrowserTrace);
-    assert.equal(trace.mainFrameIds.frameId, 'B192D1F3355A6F961EC8F0B01623C1FB');
-    assert.equal(trace.navigationStartEvt.ts, 2193564790059);
-  });
+          'tts': 141371,
+        }, {
+          'pid': 69920,
+          'tid': 1,
+          'ts': 2193564790060,
+          'ph': 'R',
+          'cat': 'loading,rail,devtools.timeline',
+          'name': 'firstContentfulPaint',
+          'args': {
+            'frame': 'B192D1F3355A6F961EC8F0B01623C1FB',
+          },
+          'tts': 141372,
+        }, {
+          'pid': 69920,
+          'tid': 1,
+          'ts': 0,
+          'ph': 'M',
+          'cat': '__metadata',
+          'name': 'thread_name',
+          'args': {'name': 'CrRendererMain'},
+        }]};
+      const trace = TraceProcessor.computeTraceOfTab(tracingStartedInBrowserTrace);
+      assert.equal(trace.mainFrameIds.frameId, 'B192D1F3355A6F961EC8F0B01623C1FB');
+      assert.equal(trace.navigationStartEvt.ts, 2193564790059);
+    });
 
-  it('handles no TracingStarted errors in m74+', () => {
-    const trace = TraceOfTab.compute(noTracingStartedTrace);
-    expect(trace.mainFrameIds.frameId).toEqual('0E0B1AF0B1BA04676037345D18A71577');
-    expect(trace.firstContentfulPaintEvt.ts).toEqual(2610265036367);
-  });
+    it('handles no TracingStarted errors in m74+', () => {
+      const trace = TraceProcessor.computeTraceOfTab(noTracingStartedTrace);
+      expect(trace.mainFrameIds.frameId).toEqual('0E0B1AF0B1BA04676037345D18A71577');
+      expect(trace.firstContentfulPaintEvt.ts).toEqual(2610265036367);
+    });
 
-  it('stably sorts events', () => {
-    const traceJson = fs.readFileSync(__dirname +
-        '/../../fixtures/traces/tracingstarted-after-navstart.json', 'utf8');
-    const trace = TraceOfTab.compute(JSON.parse(traceJson));
-    const mainPid = trace.mainThreadEvents[0].pid;
-
-    const freshProcessEvents = JSON.parse(traceJson).traceEvents
-        .filter(e => e.pid === mainPid);
-
-    // Group all events with the same timestamp in original trace order.
-    const tsMap = new Map();
-    for (const event of freshProcessEvents) {
-      const tsGroup = tsMap.get(event.ts) || [];
-      tsGroup.push(event);
-      tsMap.set(event.ts, tsGroup);
-    }
+    it('stably sorts events', () => {
+      const traceJson = fs.readFileSync(__dirname +
+          '/../../fixtures/traces/tracingstarted-after-navstart.json', 'utf8');
+      const trace = TraceProcessor.computeTraceOfTab(JSON.parse(traceJson));
+      const mainPid = trace.mainThreadEvents[0].pid;
 
-    // Assert that groups of same-timestamped events are in the same order in
-    // processed events.
-    for (const [ts, tsGroup] of tsMap) {
-      if (tsGroup.length === 1) {
-        continue;
+      const freshProcessEvents = JSON.parse(traceJson).traceEvents
+          .filter(e => e.pid === mainPid);
+
+      // Group all events with the same timestamp in original trace order.
+      const tsMap = new Map();
+      for (const event of freshProcessEvents) {
+        const tsGroup = tsMap.get(event.ts) || [];
+        tsGroup.push(event);
+        tsMap.set(event.ts, tsGroup);
       }
 
-      // .filter overhead could be slow, but only a handful of tsGroups.
-      const sortedEvents = trace.processEvents.filter(e => e.ts === ts);
-      assert.deepStrictEqual(sortedEvents, tsGroup);
-    }
-  });
+      // Assert that groups of same-timestamped events are in the same order in
+      // processed events.
+      for (const [ts, tsGroup] of tsMap) {
+        if (tsGroup.length === 1) {
+          continue;
+        }
 
-  it('throws on traces missing a navigationStart', () => {
-    expect(() =>TraceOfTab.compute(noNavStartTrace)).toThrowError('NO_NAVSTART');
-  });
+        // .filter overhead could be slow, but only a handful of tsGroups.
+        const sortedEvents = trace.processEvents.filter(e => e.ts === ts);
+        assert.deepStrictEqual(sortedEvents, tsGroup);
+      }
+    });
+
+    it('throws on traces missing a navigationStart', () => {
+      expect(() => TraceProcessor.computeTraceOfTab(noNavStartTrace))
+        .toThrowError('navigationStart');
+    });
 
-  it('throws on traces missing an FCP', () => {
-    expect(() =>TraceOfTab.compute(noFCPtrace)).toThrowError('NO_FCP');
+    it('throws on traces missing an FCP', () => {
+      expect(() => TraceProcessor.computeTraceOfTab(noFCPtrace))
+        .toThrowError('firstContentfulPaint');
+    });
   });
 });
diff --git a/lighthouse-core/test/lib/tracehouse/tracing-processor-test.js b/lighthouse-core/test/lib/tracehouse/tracing-processor-test.js
deleted file mode 100644
index 3241c8298d79..000000000000
--- a/lighthouse-core/test/lib/tracehouse/tracing-processor-test.js
+++ /dev/null
@@ -1,244 +0,0 @@
-/**
- * @license Copyright 2016 Google Inc. All Rights Reserved.
- * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
- * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
- */
-'use strict';
-
-const assert = require('assert');
-
-/* eslint-env jest */
-const TracingProcessor = require('../../../lib/tracehouse/tracing-processor.js');
-const pwaTrace = require('../../fixtures/traces/progressive-app.json');
-const defaultPercentiles = [0, 0.25, 0.5, 0.75, 0.9, 0.99, 1];
-
-const TraceOfTab = require('../../../lib/tracehouse/trace-of-tab.js');
-
-/**
- * Create a riskPercentiles result object by matching the values in percentiles
- * and times.
- * @param {!Array<number>} percentiles
- * @param {!Array<number>} times
- * @return {!Array<{percentile: number, time: number}>}
- */
-function createRiskPercentiles(percentiles, times) {
-  return percentiles.map((percentile, index) => {
-    return {
-      percentile,
-      time: times[index],
-    };
-  });
-}
-
-describe('TracingProcessor lib', () => {
-  describe('riskPercentiles calculation', () => {
-    it('correctly calculates percentiles of no tasks', () => {
-      const results = TracingProcessor._riskPercentiles([], 100, defaultPercentiles);
-      const expected = createRiskPercentiles(defaultPercentiles, [16, 16, 16, 16, 16, 16, 16]);
-      assert.deepEqual(results, expected);
-    });
-
-    it('correctly calculates percentiles of a single task with idle time', () => {
-      const results = TracingProcessor._riskPercentiles([50], 100, defaultPercentiles);
-      const expected = createRiskPercentiles(defaultPercentiles, [16, 16, 16, 41, 56, 65, 66]);
-      assert.deepEqual(results, expected);
-    });
-
-    it('correctly calculates percentiles of a single task with no idle time', () => {
-      const results = TracingProcessor._riskPercentiles([50], 50, defaultPercentiles);
-      const expected = createRiskPercentiles(defaultPercentiles,
-          [16, 28.5, 41, 53.5, 61, 65.5, 66]);
-      assert.deepEqual(results, expected);
-    });
-
-    it('correctly calculates percentiles of several equal-length tasks', () => {
-      const results = TracingProcessor._riskPercentiles([50, 50, 50, 50], 400, defaultPercentiles);
-      const expected = createRiskPercentiles(defaultPercentiles, [16, 16, 16, 41, 56, 65, 66]);
-      assert.deepEqual(results, expected);
-    });
-
-    it('correctly calculates percentiles of tasks including zero-length durations', () => {
-      const results = TracingProcessor._riskPercentiles([0, 0, 0, 10, 20, 20, 30, 30, 120], 320,
-          defaultPercentiles);
-      const expected = createRiskPercentiles(defaultPercentiles, [16, 16, 28, 56, 104, 132.8, 136]);
-      assert.deepEqual(results, expected);
-    });
-
-    // Three tasks of one second each, all within a five-second window.
-    // Mean Queueing Time of 300ms.
-    it('correctly calculates percentiles of three one-second tasks in a five-second window', () => {
-      const results = TracingProcessor._riskPercentiles([1000, 1000, 1000], 5000,
-          defaultPercentiles, 0);
-      // Round to hundredths to simplify floating point comparison.
-      results.forEach(result => {
-        result.time = Number(result.time.toFixed(2));
-      });
-
-      const expected = createRiskPercentiles(defaultPercentiles,
-          [16, 16, 182.67, 599.33, 849.33, 999.33, 1016]);
-      assert.deepEqual(results, expected);
-    });
-
-    it('correctly calculates percentiles of tasks with a clipped task', () => {
-      const results = TracingProcessor._riskPercentiles([10, 20, 50, 60, 90, 100], 300,
-          defaultPercentiles, 30);
-      // Round to hundredths to simplify floating point comparison.
-      results.forEach(result => {
-        result.time = Number(result.time.toFixed(2));
-      });
-
-      const expected = createRiskPercentiles(defaultPercentiles,
-          [16, 32.25, 53.5, 74.33, 96, 113, 116]);
-      assert.deepEqual(results, expected);
-    });
-
-    // One 20 second long task over three five-second windows.
-    it('correctly calculates percentiles of single task over multiple windows', () => {
-      // Starts 3 seconds into the first window. Mean Queueing Time = 7600ms.
-      const TASK_LENGTH = 20000;
-      const results1 = TracingProcessor._riskPercentiles([TASK_LENGTH], 5000,
-          defaultPercentiles, TASK_LENGTH - 2000);
-      const expected1 = createRiskPercentiles(defaultPercentiles,
-          [16, 16, 16, 18766, 19516, 19966, 20016]);
-      assert.deepEqual(results1, expected1);
-
-      // Starts 2 seconds before and ends 13 seconds after. Mean Queueing Time = 15500ms.
-      const results2 = TracingProcessor._riskPercentiles([TASK_LENGTH - 2000], 5000,
-          defaultPercentiles, TASK_LENGTH - 7000);
-      const expected2 = createRiskPercentiles(defaultPercentiles,
-          [16, 14266, 15516, 16766, 17516, 17966, 18016]);
-      assert.deepEqual(results2, expected2);
-
-      // Starts 17 seconds before and ends 3 seconds into the window. Mean Queueing Time = 900ms.
-      const results3 = TracingProcessor._riskPercentiles([TASK_LENGTH - 17000], 5000,
-          defaultPercentiles, 0);
-      const expected3 = createRiskPercentiles(defaultPercentiles,
-          [16, 16, 516, 1766, 2516, 2966, 3016]);
-      assert.deepEqual(results3, expected3);
-    });
-
-    it('correctly calculates with a task shorter than the clipped length of another', () => {
-      const results = TracingProcessor._riskPercentiles([40, 100], 100,
-          defaultPercentiles, 50);
-      const expected = createRiskPercentiles(defaultPercentiles,
-          [16, 31, 56, 91, 106, 115, 116]);
-      assert.deepEqual(results, expected);
-    });
-
-    it('correctly calculates with a task clipped completely', () => {
-      const results = TracingProcessor._riskPercentiles([40, 100], 100,
-          defaultPercentiles, 100);
-      const expected = createRiskPercentiles(defaultPercentiles,
-          [16, 16, 16, 31, 46, 55, 56]);
-      assert.deepEqual(results, expected);
-    });
-
-    it('does not divide by zero when duration sum is less than whole', () => {
-      // Durations chosen such that, due to floating point error:
-      //   const idleTime = totalTime - (duration1 + duration2);
-      //   (idleTime + duration1 + duration2) < totalTime
-      const duration1 = 67 / 107;
-      const duration2 = 67 / 53;
-      const totalTime = 10;
-      const results = TracingProcessor._riskPercentiles([duration1, duration2], totalTime, [1], 0);
-      const expected = createRiskPercentiles([1], [16 + duration2]);
-      assert.deepEqual(results, expected);
-    });
-  });
-
-  describe('getMainThreadTopLevelEvents', () => {
-    it('gets durations of top-level tasks', () => {
-      const trace = {traceEvents: pwaTrace};
-      const tabTrace = TraceOfTab.compute(trace);
-      const ret = TracingProcessor.getMainThreadTopLevelEvents(tabTrace);
-
-      assert.equal(ret.length, 645);
-    });
-
-    it('filters events based on start and end times', () => {
-      const baseTime = 20000 * 1000;
-      const name = 'TaskQueueManager::ProcessTaskFromWorkQueue';
-      const tabTrace = {
-        navigationStartEvt: {ts: baseTime},
-        mainThreadEvents: [
-          // 15ms to 25ms
-          {ts: baseTime + 15 * 1000, dur: 10 * 1000, name},
-          // 40ms to 60ms
-          {ts: baseTime + 40 * 1000, dur: 20 * 1000, name},
-          // 1000ms to 2000ms
-          {ts: baseTime + 1000 * 1000, dur: 1000 * 1000, name},
-          // 4000ms to 4020ms
-          {ts: baseTime + 4000 * 1000, dur: 20 * 1000, name},
-        ],
-      };
-
-      const ret = TracingProcessor.getMainThreadTopLevelEvents(
-        tabTrace,
-        50,
-        1500
-      );
-      assert.equal(ret.length, 2);
-      assert.equal(ret[0].start, 40);
-      assert.equal(ret[0].end, 60);
-      assert.equal(ret[0].duration, 20);
-      assert.equal(ret[1].start, 1000);
-      assert.equal(ret[1].end, 2000);
-      assert.equal(ret[1].duration, 1000);
-    });
-  });
-
-  describe('getMainThreadTopLevelEventDurations', () => {
-    it('gets durations of top-level tasks', async () => {
-      const trace = {traceEvents: pwaTrace};
-      const tabTrace = TraceOfTab.compute(trace);
-      const events = TracingProcessor.getMainThreadTopLevelEvents(tabTrace);
-      const ret = TracingProcessor.getMainThreadTopLevelEventDurations(events);
-      const durations = ret.durations;
-
-      function getDurationFromIndex(index) {
-        return Number(durations[index].toFixed(2));
-      }
-
-      assert.equal(durations.filter(dur => isNaN(dur)).length, 0, 'NaN found');
-      assert.equal(durations.length, 645);
-
-      const sum = durations.reduce((a, b) => a + b);
-      assert.equal(Math.round(sum), 386);
-
-      assert.equal(getDurationFromIndex(50), 0.01);
-      assert.equal(getDurationFromIndex(300), 0.04);
-      assert.equal(getDurationFromIndex(400), 0.07);
-      assert.equal(getDurationFromIndex(durations.length - 3), 26.01);
-      assert.equal(getDurationFromIndex(durations.length - 2), 36.9);
-      assert.equal(getDurationFromIndex(durations.length - 1), 38.53);
-    });
-  });
-
-  describe('risk to responsiveness', () => {
-    let oldFn;
-    // monkeypatch _riskPercentiles to test just getRiskToResponsiveness
-    beforeEach(() => {
-      oldFn = TracingProcessor._riskPercentiles;
-      TracingProcessor._riskPercentiles = (durations, totalTime, percentiles, clippedLength) => {
-        return {
-          durations, totalTime, percentiles, clippedLength,
-        };
-      };
-    });
-
-    it('compute correct defaults', async () => {
-      const trace = {traceEvents: pwaTrace};
-      const tabTrace = TraceOfTab.compute(trace);
-      const events = TracingProcessor.getMainThreadTopLevelEvents(tabTrace);
-      const ret = TracingProcessor.getRiskToResponsiveness(events, 0, tabTrace.timings.traceEnd);
-      assert.equal(ret.durations.length, 645);
-      assert.equal(Math.round(ret.totalTime), 2143);
-      assert.equal(ret.clippedLength, 0);
-      assert.deepEqual(ret.percentiles, [0.5, 0.75, 0.9, 0.99, 1]);
-    });
-
-    afterEach(() => {
-      TracingProcessor._riskPercentiles = oldFn;
-    });
-  });
-});

From 0a286124692f0e521a2625be09ef8d70a9492cf6 Mon Sep 17 00:00:00 2001
From: Patrick Hulce <patrick.hulce@gmail.com>
Date: Thu, 6 Jun 2019 20:32:50 -0500
Subject: [PATCH 021/110] core(gather-runner): always reset scroll position
 (#9060)

---
 lighthouse-core/config/default-config.js      |  1 -
 lighthouse-core/gather/driver.js              | 41 ++++++++++++++++++-
 lighthouse-core/gather/gather-runner.js       |  6 +++
 lighthouse-core/test/gather/driver-test.js    | 13 ++++++
 lighthouse-core/test/gather/fake-driver.js    |  9 ++++
 .../test/gather/gather-runner-test.js         | 30 ++++++++++++++
 6 files changed, 98 insertions(+), 2 deletions(-)

diff --git a/lighthouse-core/config/default-config.js b/lighthouse-core/config/default-config.js
index 15916dda5d7f..d10e91196537 100644
--- a/lighthouse-core/config/default-config.js
+++ b/lighthouse-core/config/default-config.js
@@ -135,7 +135,6 @@ const defaultConfig = {
       'seo/embedded-content',
       'seo/robots-txt',
       'seo/tap-targets',
-      // Always run axe last because it scrolls the page down to the bottom
       'accessibility',
     ],
   },
diff --git a/lighthouse-core/gather/driver.js b/lighthouse-core/gather/driver.js
index a5a8ee8a6ee3..b9d58f6d5566 100644
--- a/lighthouse-core/gather/driver.js
+++ b/lighthouse-core/gather/driver.js
@@ -86,6 +86,16 @@ class Driver {
       this._handleReceivedMessageFromTarget(event, []).catch(this._handleEventError);
     });
 
+    // We use isolated execution contexts for `evaluateAsync` that can be destroyed through navigation
+    // and other page actions. Cleanup our relevant bookkeeping as we see those events.
+    this.on('Runtime.executionContextDestroyed', event => {
+      if (event.executionContextId === this._isolatedExecutionContextId) {
+        this._clearIsolatedContextId();
+      }
+    });
+
+    this.on('Page.frameNavigated', () => this._clearIsolatedContextId());
+
     connection.on('protocolevent', this._handleProtocolEvent.bind(this));
 
     /**
@@ -464,7 +474,20 @@ class Driver {
    */
   async evaluateAsync(expression, options = {}) {
     const contextId = options.useIsolation ? await this._getOrCreateIsolatedContextId() : undefined;
-    return this._evaluateInContext(expression, contextId);
+
+    try {
+      // `await` is not redunant here because we want to `catch` the async errors
+      return await this._evaluateInContext(expression, contextId);
+    } catch (err) {
+      // If we were using isolation and the context disappeared on us, retry one more time.
+      if (contextId && err.message.includes('Cannot find context')) {
+        this._clearIsolatedContextId();
+        const freshContextId = await this._getOrCreateIsolatedContextId();
+        return this._evaluateInContext(expression, freshContextId);
+      }
+
+      throw err;
+    }
   }
 
   /**
@@ -1268,6 +1291,22 @@ class Driver {
     return flattenedDocument.nodes ? flattenedDocument.nodes : [];
   }
 
+  /**
+   * @param {{x: number, y: number}} position
+   * @return {Promise<void>}
+   */
+  scrollTo(position) {
+    const scrollExpression = `window.scrollTo(${position.x}, ${position.y})`;
+    return this.evaluateAsync(scrollExpression, {useIsolation: true});
+  }
+
+  /**
+   * @return {Promise<{x: number, y: number}>}
+   */
+  getScrollPosition() {
+    return this.evaluateAsync(`({x: window.scrollX, y: window.scrollY})`, {useIsolation: true});
+  }
+
   /**
    * @param {{additionalTraceCategories?: string|null}=} settings
    * @return {Promise<void>}
diff --git a/lighthouse-core/gather/gather-runner.js b/lighthouse-core/gather/gather-runner.js
index 99fc7b6ffd5e..c1d50c80f8e7 100644
--- a/lighthouse-core/gather/gather-runner.js
+++ b/lighthouse-core/gather/gather-runner.js
@@ -339,12 +339,17 @@ class GatherRunner {
    * @return {Promise<void>}
    */
   static async afterPass(passContext, loadData, gathererResults) {
+    const driver = passContext.driver;
     const config = passContext.passConfig;
     const gatherers = config.gatherers;
 
     const apStatus = {msg: `Running afterPass methods`, id: `lh:gather:afterPass`};
     log.time(apStatus, 'verbose');
 
+    // Some gatherers scroll the page which can cause unexpected results for other gatherers.
+    // We reset the scroll position in between each gatherer.
+    const scrollPosition = await driver.getScrollPosition();
+
     for (const gathererDefn of gatherers) {
       const gatherer = gathererDefn.instance;
       const status = {
@@ -362,6 +367,7 @@ class GatherRunner {
       gathererResult.push(artifactPromise);
       gathererResults[gatherer.name] = gathererResult;
       await artifactPromise.catch(() => {});
+      await driver.scrollTo(scrollPosition);
       log.timeEnd(status);
     }
     log.timeEnd(apStatus);
diff --git a/lighthouse-core/test/gather/driver-test.js b/lighthouse-core/test/gather/driver-test.js
index dfe5ed6ba6af..62bfbcb2c1c7 100644
--- a/lighthouse-core/test/gather/driver-test.js
+++ b/lighthouse-core/test/gather/driver-test.js
@@ -317,6 +317,19 @@ describe('.evaluateAsync', () => {
       expect.anything()
     );
   });
+
+  it('recovers from isolation failures', async () => {
+    connectionStub.sendCommand = createMockSendCommandFn()
+      .mockResponse('Page.getResourceTree', {frameTree: {frame: {id: 1337}}})
+      .mockResponse('Page.createIsolatedWorld', {executionContextId: 9001})
+      .mockResponse('Runtime.evaluate', Promise.reject(new Error('Cannot find context')))
+      .mockResponse('Page.getResourceTree', {frameTree: {frame: {id: 1337}}})
+      .mockResponse('Page.createIsolatedWorld', {executionContextId: 9002})
+      .mockResponse('Runtime.evaluate', {result: {value: 'mocked value'}});
+
+    const value = await driver.evaluateAsync('"magic"', {useIsolation: true});
+    expect(value).toEqual('mocked value');
+  });
 });
 
 describe('.sendCommand', () => {
diff --git a/lighthouse-core/test/gather/fake-driver.js b/lighthouse-core/test/gather/fake-driver.js
index 1db517772bea..108a40aa6d78 100644
--- a/lighthouse-core/test/gather/fake-driver.js
+++ b/lighthouse-core/test/gather/fake-driver.js
@@ -6,6 +6,8 @@
 'use strict';
 
 function makeFakeDriver({protocolGetVersionResponse}) {
+  let scrollPosition = {x: 0, y: 0};
+
   return {
     getBrowserVersion() {
       return Promise.resolve(Object.assign({}, protocolGetVersionResponse, {milestone: 71}));
@@ -57,6 +59,13 @@ function makeFakeDriver({protocolGetVersionResponse}) {
     evaluateAsync() {
       return Promise.resolve({});
     },
+    scrollTo(position) {
+      scrollPosition = position;
+      return Promise.resolve();
+    },
+    getScrollPosition() {
+      return Promise.resolve(scrollPosition);
+    },
     registerPerformanceObserver() {
       return Promise.resolve();
     },
diff --git a/lighthouse-core/test/gather/gather-runner-test.js b/lighthouse-core/test/gather/gather-runner-test.js
index 3ec3ec8e3a58..f76f0f63ff00 100644
--- a/lighthouse-core/test/gather/gather-runner-test.js
+++ b/lighthouse-core/test/gather/gather-runner-test.js
@@ -396,6 +396,8 @@ describe('GatherRunner', function() {
       endTrace: asyncFunc,
       endDevtoolsLog: () => [],
       getBrowserVersion: async () => ({userAgent: ''}),
+      getScrollPosition: async () => 1,
+      scrollTo: async () => {},
     };
     const passConfig = {
       passName: 'default',
@@ -677,6 +679,34 @@ describe('GatherRunner', function() {
     });
   });
 
+  it('resets scroll position between every gatherer', async () => {
+    class ScrollMcScrollyGatherer extends TestGatherer {
+      afterPass(context) {
+        context.driver.scrollTo({x: 1000, y: 1000});
+      }
+    }
+
+    const url = 'https://example.com';
+    const driver = Object.assign({}, fakeDriver);
+    const scrollToSpy = jest.spyOn(driver, 'scrollTo');
+
+    const passConfig = {
+      recordTrace: true,
+      gatherers: [
+        {instance: new ScrollMcScrollyGatherer()},
+        {instance: new TestGatherer()},
+      ],
+    };
+
+    await GatherRunner.afterPass({url, driver, passConfig}, {}, {TestGatherer: []});
+    // One time for the afterPass of ScrollMcScrolly, two times for the resets of the two gatherers.
+    expect(scrollToSpy.mock.calls).toEqual([
+      [{x: 1000, y: 1000}],
+      [{x: 0, y: 0}],
+      [{x: 0, y: 0}],
+    ]);
+  });
+
   it('does as many passes as are required', () => {
     const t1 = new TestGatherer();
     const t2 = new TestGatherer();

From 212b6acb7102f0b208638149c1016957242ed430 Mon Sep 17 00:00:00 2001
From: Nickolas Benakis <nickolasbenele@gmail.com>
Date: Fri, 7 Jun 2019 05:47:04 +0300
Subject: [PATCH 022/110] core(page-functions): don't try to clone a ShadowRoot
 (#9079)

---
 .../test/fixtures/dobetterweb/dbw_tester.html | 12 ++++++++
 .../dobetterweb/dbw-expectations.js           | 10 +++++--
 lighthouse-core/lib/page-functions.js         | 30 ++++++++++++-------
 .../test/lib/page-functions-test.js           | 14 ++++++++-
 4 files changed, 51 insertions(+), 15 deletions(-)

diff --git a/lighthouse-cli/test/fixtures/dobetterweb/dbw_tester.html b/lighthouse-cli/test/fixtures/dobetterweb/dbw_tester.html
index ed96a7f74c3b..f01647c4172d 100644
--- a/lighthouse-cli/test/fixtures/dobetterweb/dbw_tester.html
+++ b/lighthouse-cli/test/fixtures/dobetterweb/dbw_tester.html
@@ -117,6 +117,18 @@
 <object id="5934a"></object>
 <object id="5934b"></object>
 
+<div id="shadow-root-container"></div>
+<script>
+  // DOM Size has had trouble with very specific shadow root traversal issues.
+  // Make sure it can handle reporting of the widest element being a shadow root.
+  const shadowRootContainer = document.getElementById('shadow-root-container');
+  const shadowRoot = shadowRootContainer.attachShadow({mode: 'open'});
+  for (let i = 0; i < 100; i++) {
+    const span = document.createElement('span');
+    shadowRoot.appendChild(span);
+  }
+</script>
+
 <script>
   // Ensure gatherers still work when individual elements override '.matches'
   document.getElementById("5934a").matches = "blahblah";
diff --git a/lighthouse-cli/test/smokehouse/dobetterweb/dbw-expectations.js b/lighthouse-cli/test/smokehouse/dobetterweb/dbw-expectations.js
index b044ba7bed37..ef5ad5c02fc2 100644
--- a/lighthouse-cli/test/smokehouse/dobetterweb/dbw-expectations.js
+++ b/lighthouse-cli/test/smokehouse/dobetterweb/dbw-expectations.js
@@ -155,12 +155,16 @@ module.exports = [
         },
         'dom-size': {
           score: 1,
-          numericValue: 35,
+          numericValue: 137,
           details: {
             items: [
-              {statistic: 'Total DOM Elements', value: '35'},
+              {statistic: 'Total DOM Elements', value: '137'},
               {statistic: 'Maximum DOM Depth', value: '3'},
-              {statistic: 'Maximum Child Elements', value: '33'},
+              {
+                statistic: 'Maximum Child Elements',
+                value: '100',
+                element: {value: '<div id="shadow-root-container">'},
+              },
             ],
           },
         },
diff --git a/lighthouse-core/lib/page-functions.js b/lighthouse-core/lib/page-functions.js
index 770c0c855fc5..e6073668f79a 100644
--- a/lighthouse-core/lib/page-functions.js
+++ b/lighthouse-core/lib/page-functions.js
@@ -6,7 +6,7 @@
 // @ts-nocheck
 'use strict';
 
-/* global window document Node */
+/* global window document Node ShadowRoot */
 
 /**
  * Helper functions that are passed by `toString()` by Driver to be evaluated in target page.
@@ -107,24 +107,32 @@ function getElementsInDocument(selector) {
 
 /**
  * Gets the opening tag text of the given node.
- * @param {Element} element
+ * @param {Element|ShadowRoot} element
  * @param {Array<string>=} ignoreAttrs An optional array of attribute tags to not include in the HTML snippet.
  * @return {string}
  */
 /* istanbul ignore next */
 function getOuterHTMLSnippet(element, ignoreAttrs = []) {
-  const clone = element.cloneNode();
-
-  ignoreAttrs.forEach(attribute =>{
-    clone.removeAttribute(attribute);
-  });
-
-  const reOpeningTag = /^[\s\S]*?>/;
-  const match = clone.outerHTML.match(reOpeningTag);
+  try {
+    // ShadowRoots are sometimes passed in; use their hosts' outerHTML.
+    if (element instanceof ShadowRoot) {
+      element = element.host;
+    }
 
-  return (match && match[0]) || '';
+    const clone = element.cloneNode();
+    ignoreAttrs.forEach(attribute =>{
+      clone.removeAttribute(attribute);
+    });
+    const reOpeningTag = /^[\s\S]*?>/;
+    const match = clone.outerHTML.match(reOpeningTag);
+    return (match && match[0]) || '';
+  } catch (_) {
+    // As a last resort, fall back to localName.
+    return `<${element.localName}>`;
+  }
 }
 
+
 /**
  * Computes a memory/CPU performance benchmark index to determine rough device class.
  * @see https://docs.google.com/spreadsheets/d/1E0gZwKsxegudkjJl8Fki_sOwHKpqgXwt8aBAfuUaB8A/edit?usp=sharing
diff --git a/lighthouse-core/test/lib/page-functions-test.js b/lighthouse-core/test/lib/page-functions-test.js
index f7febf7dc69a..7c110c368158 100644
--- a/lighthouse-core/test/lib/page-functions-test.js
+++ b/lighthouse-core/test/lib/page-functions-test.js
@@ -16,10 +16,15 @@ describe('Page Functions', () => {
   let dom;
 
   beforeAll(() => {
-    const {document} = new jsdom.JSDOM().window;
+    const {document, ShadowRoot} = new jsdom.JSDOM().window;
+    global.ShadowRoot = ShadowRoot;
     dom = new DOM(document);
   });
 
+  afterAll(() => {
+    global.ShadowRoot = undefined;
+  });
+
   describe('get outer HTML snippets', () => {
     it('gets full HTML snippet', () => {
       assert.equal(pageFunctions.getOuterHTMLSnippet(
@@ -38,6 +43,13 @@ describe('Page Functions', () => {
       ), '<div id="1">');
     });
 
+    it('should handle dom nodes that cannot be cloned', () => {
+      const element = dom.createElement('div');
+      element.cloneNode = () => {
+        throw new Error('oops!');
+      };
+      assert.equal(pageFunctions.getOuterHTMLSnippet(element), '<div>');
+    });
     it('ignores when attribute not found', () => {
       assert.equal(pageFunctions.getOuterHTMLSnippet(
         dom.createElement('div', '', {'id': '1', 'style': 'style', 'aria-label': 'label'}),

From aef01e9e2550eab83859b14c5a4cd04640242c8c Mon Sep 17 00:00:00 2001
From: cjamcl <cjamcl@google.com>
Date: Fri, 7 Jun 2019 10:20:02 -0700
Subject: [PATCH 023/110] report: remove unused css vars (#9144)

---
 lighthouse-core/report/html/report-styles.css | 42 -------------------
 1 file changed, 42 deletions(-)

diff --git a/lighthouse-core/report/html/report-styles.css b/lighthouse-core/report/html/report-styles.css
index 1821d721d9f2..e8eb75d52d0a 100644
--- a/lighthouse-core/report/html/report-styles.css
+++ b/lighthouse-core/report/html/report-styles.css
@@ -22,59 +22,30 @@
   --body-text-color: var(--color-black-900);
   --body-font-size: 16px;
   --body-line-height: 24px;
-  --subheader-font-size: 14px;
-  --subheader-line-height: 20px;
   --subheader-color: hsl(206, 6%, 25%);
-  --header-bg-color: #f1f3f4;
   --header-font-size: 20px;
   --header-line-height: 24px;
-  --title-font-size: 24px;
-  --title-line-height: 28px;
-  --caption-font-size: 12px;
   --caption-line-height: 16px;
   --default-padding: 12px;
   --section-padding: 16px;
   --section-indent: 16px;
-  --audit-group-indent: 16px;
   --audit-item-gap: 5px;
-  --audit-indent: 16px;
   --text-indent: 8px;
-  --expandable-indent: 20px;
   --secondary-text-color: var(--color-black-800);
-  /*--accent-color: #3879d9;*/
   --informative-color: var(--color-blue-900);
   --medium-75-gray: #757575;
   --medium-50-gray: hsl(210, 17%, 98%);
-  --medium-100-gray: hsl(200, 12%, 95%);
-  --warning-color: #ffab00; /* md amber a700 */
   --report-secondary-border-color: #ebebeb;
-  --metric-timeline-rule-color: #b3b3b3;
   --display-value-gray: hsl(216, 5%, 39%);
   --report-width: calc(60 * var(--body-font-size));
   --report-min-width: 400px;
-  /* Edge doesn't support calc(var(calc())) */
-  --report-width-half: calc(30 * var(--body-font-size));
   --report-header-height: 161px;
-  --report-header-color: #202124;
-  --navitem-font-size: var(--body-font-size);
-  --navitem-line-height: var(--body-line-height);
-  --navitem-hpadding: var(--body-font-size);
-  --navitem-vpadding: calc(var(--navitem-line-height) / 2);
-  --lh-score-highlight-bg: hsla(0, 0%, 90%, 0.2);
   --lh-score-icon-background-size: 24px;
-  --lh-group-icon-background-size: var(--lh-score-icon-background-size);
   --lh-export-icon-size: var(--lh-score-icon-background-size);
   --lh-export-icon-color: var(--medium-75-gray);
-  --lh-score-margin: 12px;
-  --lh-table-header-bg: #f8f9fa;
   --lh-table-higlight-bg: hsla(0, 0%, 75%, 0.1);
   --lh-sparkline-height: 5px;
-  --lh-sparkline-thin-height: 3px;
-  --lh-filmstrip-thumbnail-width: 60px;
-  --lh-category-score-width: calc(5 * var(--body-font-size));
   --lh-audit-vpadding: 8px;
-  --lh-audit-index-width: 18px;
-  --lh-audit-hgap: 12px;
   --lh-audit-group-vpadding: 8px;
   --lh-section-vpadding: 12px;
   --chevron-size: 12px;
@@ -89,7 +60,6 @@
   --color-black-600: #757575;
   --color-black-800: #424242;
   --color-black-900: #212121;
-  --off-black: #111111;
   --color-black: #000000;
   --color-blue: #2962FF;
   --color-green-700: #018642;
@@ -114,7 +84,6 @@
   --gauge-circle-size-big: 112px;
   --gauge-circle-size: 80px;
   --header-padding: 20px 0 20px 0;
-  --highlighter-bg: var(--color-black-400);
   --icon-square-size: calc(var(--score-shape-size) * 0.88);
   --plugin-badge-bg: var(--color-white);
   --plugin-badge-size-big: calc(var(--gauge-circle-size-big) / 2.7);
@@ -187,7 +156,6 @@
 
   --topbar-bg: var(--color-black);
   --plugin-badge-bg: var(--color-black-800);
-  --header-bg-color: var(--color-black-900);
   --env-item-bg: var(--color-black);
   --report-secondary-border-color: var(--color-black-200);
 
@@ -195,7 +163,6 @@
   --body-text-color: var(--color-black-100);
   --secondary-text-color: var(--color-black-400);
 
-  --highlighter-bg: var(--color-black-200);
   --plugin-icon-url: var(--plugin-icon-url-dark);
 
   --informative-color: var(--color-blue-200);
@@ -246,20 +213,12 @@
   --monospace-font-family: 'Menlo', 'dejavu sans mono', 'Consolas', 'Lucida Console', monospace;
   --body-font-size: 12px;
   --body-line-height: 20px;
-  --subheader-font-size: 14px;
-  --subheader-line-height: 18px;
   --header-font-size: 16px;
   --header-line-height: 20px;
-  --title-font-size: 20px;
-  --title-line-height: 24px;
-  --caption-font-size: 11px;
   --caption-line-height: 14px;
   --default-padding: 12px;
   --section-padding: 12px;
   --section-indent: 8px;
-  --audit-group-indent: 16px;
-  --audit-indent: 16px;
-  --expandable-indent: 16px;
 
   --gauge-circle-size-big: 72px;
   --gauge-circle-size: 64px;
@@ -280,7 +239,6 @@
   --score-title-line-height: 20px;
 
   --lh-audit-vpadding: 4px;
-  --lh-audit-hgap: 12px;
   --lh-audit-group-vpadding: 12px;
   --lh-section-vpadding: 8px;
 }

From 5aeef234faf8a342bf5d195529019d61f5b05cbb Mon Sep 17 00:00:00 2001
From: Shane Exterkamp <shaneexterkamp5@gmail.com>
Date: Fri, 7 Jun 2019 11:35:56 -0700
Subject: [PATCH 024/110] i18n: localize column headers of budget audits
 (#9127)

---
 lighthouse-core/audits/network-requests.js   |  2 +-
 lighthouse-core/audits/performance-budget.js | 10 ++++++----
 lighthouse-core/audits/resource-summary.js   |  6 +++---
 lighthouse-core/lib/i18n/en-US.json          | 16 ++++++++++++++++
 lighthouse-core/lib/i18n/i18n.js             |  6 ++++++
 lighthouse-core/test/results/sample_v2.json  | 15 +++++++++++++++
 6 files changed, 47 insertions(+), 8 deletions(-)

diff --git a/lighthouse-core/audits/network-requests.js b/lighthouse-core/audits/network-requests.js
index 722895d3c810..53acc72bbb63 100644
--- a/lighthouse-core/audits/network-requests.js
+++ b/lighthouse-core/audits/network-requests.js
@@ -72,7 +72,7 @@ class NetworkRequests extends Audit {
           itemType: 'bytes',
           displayUnit: 'kb',
           granularity: 1,
-          text: 'Transfer Size',
+          text: 'Transfer Size', // TODO(exterkamp): i18n this when i18n'ing this file
         },
         {
           key: 'resourceSize',
diff --git a/lighthouse-core/audits/performance-budget.js b/lighthouse-core/audits/performance-budget.js
index 71f3630e908b..9d520df6f2eb 100644
--- a/lighthouse-core/audits/performance-budget.js
+++ b/lighthouse-core/audits/performance-budget.js
@@ -20,6 +20,8 @@ const UIStrings = {
     =1 {1 request}
     other {# requests}
    }`,
+  /** Label for a column in a data table; entries will be how much the quantity or size of network requests exceeded a predetermined budget.*/
+  columnOverBudget: 'Over Budget',
 };
 
 const str_ = i18n.createMessageInstanceIdFn(__filename, UIStrings);
@@ -130,11 +132,11 @@ class ResourceBudget extends Audit {
 
     /** @type { LH.Audit.Details.Table['headings'] } */
     const headers = [
-      {key: 'label', itemType: 'text', text: 'Resource Type'},
-      {key: 'requestCount', itemType: 'numeric', text: 'Requests'},
-      {key: 'size', itemType: 'bytes', text: 'Transfer Size'},
+      {key: 'label', itemType: 'text', text: str_(i18n.UIStrings.columnResourceType)},
+      {key: 'requestCount', itemType: 'numeric', text: str_(i18n.UIStrings.columnRequests)},
+      {key: 'size', itemType: 'bytes', text: str_(i18n.UIStrings.columnTransferSize)},
       {key: 'countOverBudget', itemType: 'text', text: ''},
-      {key: 'sizeOverBudget', itemType: 'bytes', text: 'Over Budget'},
+      {key: 'sizeOverBudget', itemType: 'bytes', text: str_(UIStrings.columnOverBudget)},
     ];
 
     return {
diff --git a/lighthouse-core/audits/resource-summary.js b/lighthouse-core/audits/resource-summary.js
index d7835a9cbecd..18bbf9d03f09 100644
--- a/lighthouse-core/audits/resource-summary.js
+++ b/lighthouse-core/audits/resource-summary.js
@@ -48,9 +48,9 @@ class ResourceSummary extends Audit {
 
     /** @type {LH.Audit.Details.Table['headings']} */
     const headings = [
-      {key: 'label', itemType: 'text', text: 'Resource Type'},
-      {key: 'requestCount', itemType: 'numeric', text: 'Requests'},
-      {key: 'size', itemType: 'bytes', text: 'Transfer Size'},
+      {key: 'label', itemType: 'text', text: str_(i18n.UIStrings.columnResourceType)},
+      {key: 'requestCount', itemType: 'numeric', text: str_(i18n.UIStrings.columnRequests)},
+      {key: 'size', itemType: 'bytes', text: str_(i18n.UIStrings.columnTransferSize)},
     ];
 
 
diff --git a/lighthouse-core/lib/i18n/en-US.json b/lighthouse-core/lib/i18n/en-US.json
index adfc34c8fa21..b4d573c3d4c0 100644
--- a/lighthouse-core/lib/i18n/en-US.json
+++ b/lighthouse-core/lib/i18n/en-US.json
@@ -759,6 +759,10 @@
     "message": "Server Backend Latencies",
     "description": "Descriptive title of a Lighthouse audit that tells the user the server latencies observed from each origin the page connected to. This is displayed in a list of audit titles that Lighthouse generates."
   },
+  "lighthouse-core/audits/performance-budget.js | columnOverBudget": {
+    "message": "Over Budget",
+    "description": "Label for a column in a data table; entries will be how much the quantity or size of network requests exceeded a predetermined budget."
+  },
   "lighthouse-core/audits/performance-budget.js | description": {
     "message": "Keep the quantity and size of network requests under the targets set by the provided performance budget. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/budgets).",
     "description": "Description of a Lighthouse audit where a user sets budgets for the quantity and size of page resources. No character length limits. 'Learn More' becomes link text to additional documentation."
@@ -1243,6 +1247,14 @@
     "message": "Cache TTL",
     "description": "Label for the TTL column in data tables, entries will be the time to live value of the cache header on a web resource"
   },
+  "lighthouse-core/lib/i18n/i18n.js | columnRequests": {
+    "message": "Requests",
+    "description": "Label for a column in a data table; entries will be the number of network requests done by a webpage."
+  },
+  "lighthouse-core/lib/i18n/i18n.js | columnResourceType": {
+    "message": "Resource Type",
+    "description": "Label for a column in a data table; entries will be types of resources loaded over the network, e.g. \"Scripts\", \"Third-Party\", \"Stylesheet\"."
+  },
   "lighthouse-core/lib/i18n/i18n.js | columnSize": {
     "message": "Size",
     "description": "Label for the size column in data tables, entries will be the size of a web resource in kilobytes"
@@ -1251,6 +1263,10 @@
     "message": "Time Spent",
     "description": "Label for the time spent column in data tables, entries will be the number of milliseconds spent during a particular activity"
   },
+  "lighthouse-core/lib/i18n/i18n.js | columnTransferSize": {
+    "message": "Transfer Size",
+    "description": "Label for a column in a data table; entries will be the number of kilobytes transferred to load a set of files."
+  },
   "lighthouse-core/lib/i18n/i18n.js | columnURL": {
     "message": "URL",
     "description": "Label for the URL column in data tables, entries will be the URL of a web resource"
diff --git a/lighthouse-core/lib/i18n/i18n.js b/lighthouse-core/lib/i18n/i18n.js
index b93423b4a83f..03df5dd23ca2 100644
--- a/lighthouse-core/lib/i18n/i18n.js
+++ b/lighthouse-core/lib/i18n/i18n.js
@@ -56,6 +56,12 @@ const UIStrings = {
   columnWastedMs: 'Potential Savings',
   /** Label for the time spent column in data tables, entries will be the number of milliseconds spent during a particular activity */
   columnTimeSpent: 'Time Spent',
+  /** Label for a column in a data table; entries will be types of resources loaded over the network, e.g. "Scripts", "Third-Party", "Stylesheet". */
+  columnResourceType: 'Resource Type',
+  /** Label for a column in a data table; entries will be the number of network requests done by a webpage.*/
+  columnRequests: 'Requests',
+  /** Label for a column in a data table; entries will be the number of kilobytes transferred to load a set of files.*/
+  columnTransferSize: 'Transfer Size',
   /** Label for a row in a data table; entries will be the total number and byte size of all resources loaded by a web page. */
   totalResourceType: 'Total',
   /** Label for a row in a data table; entries will be the total number and byte size of all 'Document' resources loaded by a web page. */
diff --git a/lighthouse-core/test/results/sample_v2.json b/lighthouse-core/test/results/sample_v2.json
index bfb2a297b9b2..088cbea1083d 100644
--- a/lighthouse-core/test/results/sample_v2.json
+++ b/lighthouse-core/test/results/sample_v2.json
@@ -5300,6 +5300,21 @@
       "lighthouse-core/audits/performance-budget.js | description": [
         "audits[performance-budget].description"
       ],
+      "lighthouse-core/lib/i18n/i18n.js | columnResourceType": [
+        "audits[performance-budget].details.headings[0].text",
+        "audits[resource-summary].details.headings[0].text"
+      ],
+      "lighthouse-core/lib/i18n/i18n.js | columnRequests": [
+        "audits[performance-budget].details.headings[1].text",
+        "audits[resource-summary].details.headings[1].text"
+      ],
+      "lighthouse-core/lib/i18n/i18n.js | columnTransferSize": [
+        "audits[performance-budget].details.headings[2].text",
+        "audits[resource-summary].details.headings[2].text"
+      ],
+      "lighthouse-core/audits/performance-budget.js | columnOverBudget": [
+        "audits[performance-budget].details.headings[4].text"
+      ],
       "lighthouse-core/lib/i18n/i18n.js | scriptResourceType": [
         "audits[performance-budget].details.items[0].label",
         "audits[resource-summary].details.items[1].label"

From 0e221e51417627daa8aeea7f65e2585e8c73299f Mon Sep 17 00:00:00 2001
From: cjamcl <cjamcl@google.com>
Date: Sat, 8 Jun 2019 11:37:12 -0700
Subject: [PATCH 025/110] report: rename exports to tools (#9135)

---
 .../html/renderer/report-ui-features.js       | 48 ++++++++--------
 lighthouse-core/report/html/report-styles.css |  4 +-
 lighthouse-core/report/html/templates.html    | 56 +++++++++----------
 .../app/src/viewer-ui-features.js             |  4 +-
 lighthouse-viewer/app/styles/viewer.css       |  4 +-
 5 files changed, 58 insertions(+), 58 deletions(-)

diff --git a/lighthouse-core/report/html/renderer/report-ui-features.js b/lighthouse-core/report/html/renderer/report-ui-features.js
index 612ba1a3e4dd..213199757c28 100644
--- a/lighthouse-core/report/html/renderer/report-ui-features.js
+++ b/lighthouse-core/report/html/renderer/report-ui-features.js
@@ -19,7 +19,7 @@
 /* eslint-env browser */
 
 /**
- * @fileoverview Adds export button, print, and other dynamic functionality to
+ * @fileoverview Adds tools button, print, and other dynamic functionality to
  * the report.
  */
 
@@ -49,7 +49,7 @@ class ReportUIFeatures {
     /** @type {boolean} */
     this._copyAttempt = false;
     /** @type {HTMLElement} */
-    this.exportButton; // eslint-disable-line no-unused-expressions
+    this.toolsButton; // eslint-disable-line no-unused-expressions
     /** @type {HTMLElement} */
     this.topbarEl; // eslint-disable-line no-unused-expressions
     /** @type {HTMLElement} */
@@ -61,8 +61,8 @@ class ReportUIFeatures {
 
     this.onMediaQueryChange = this.onMediaQueryChange.bind(this);
     this.onCopy = this.onCopy.bind(this);
-    this.onExportButtonClick = this.onExportButtonClick.bind(this);
-    this.onExport = this.onExport.bind(this);
+    this.onToolsButtonClick = this.onToolsButtonClick.bind(this);
+    this.onToolAction = this.onToolAction.bind(this);
     this.onKeyDown = this.onKeyDown.bind(this);
     this.onKeyUp = this.onKeyUp.bind(this);
     this.onChevronClick = this.onChevronClick.bind(this);
@@ -73,7 +73,7 @@ class ReportUIFeatures {
   }
 
   /**
-   * Adds export button, print, and other functionality to the report. The method
+   * Adds tools button, print, and other functionality to the report. The method
    * should be called whenever the report needs to be re-rendered.
    * @param {LH.Result} report
    */
@@ -81,7 +81,7 @@ class ReportUIFeatures {
     this.json = report;
 
     this._setupMediaQueryListeners();
-    this._setupExportButton();
+    this._setupToolsButton();
     this._setupThirdPartyFilter();
     this._setUpCollapseDetailsAfterPrinting();
     this._resetUIState();
@@ -205,12 +205,12 @@ class ReportUIFeatures {
     root.classList.toggle('lh-narrow', mql.matches);
   }
 
-  _setupExportButton() {
-    this.exportButton = this._dom.find('.lh-export__button', this._document);
-    this.exportButton.addEventListener('click', this.onExportButtonClick);
+  _setupToolsButton() {
+    this.toolsButton = this._dom.find('.lh-tools__button', this._document);
+    this.toolsButton.addEventListener('click', this.onToolsButtonClick);
 
-    const dropdown = this._dom.find('.lh-export__dropdown', this._document);
-    dropdown.addEventListener('click', this.onExport);
+    const dropdown = this._dom.find('.lh-tools__dropdown', this._document);
+    dropdown.addEventListener('click', this.onToolAction);
   }
 
   _setupThirdPartyFilter() {
@@ -377,17 +377,17 @@ class ReportUIFeatures {
     }
   }
 
-  closeExportDropdown() {
-    this.exportButton.classList.remove('active');
+  closeToolsDropdown() {
+    this.toolsButton.classList.remove('active');
   }
 
   /**
-   * Click handler for export button.
+   * Click handler for tools button.
    * @param {Event} e
    */
-  onExportButtonClick(e) {
+  onToolsButtonClick(e) {
     e.preventDefault();
-    this.exportButton.classList.toggle('active');
+    this.toolsButton.classList.toggle('active');
     this._document.addEventListener('keydown', this.onKeyDown);
   }
 
@@ -397,15 +397,15 @@ class ReportUIFeatures {
    * be in their closed state (not opened) and the templates should be unstamped.
    */
   _resetUIState() {
-    this.closeExportDropdown();
+    this.closeToolsDropdown();
     this._dom.resetTemplates();
   }
 
   /**
-   * Handler for "export as" button.
+   * Handler for tool button.
    * @param {Event} e
    */
-  onExport(e) {
+  onToolAction(e) {
     e.preventDefault();
 
     const el = /** @type {?Element} */ (e.target);
@@ -420,12 +420,12 @@ class ReportUIFeatures {
         break;
       case 'print-summary':
         this.collapseAllDetails();
-        this.closeExportDropdown();
+        this.closeToolsDropdown();
         self.print();
         break;
       case 'print-expanded':
         this.expandAllDetails();
-        this.closeExportDropdown();
+        this.closeToolsDropdown();
         self.print();
         break;
       case 'save-json': {
@@ -459,7 +459,7 @@ class ReportUIFeatures {
       }
     }
 
-    this.closeExportDropdown();
+    this.closeToolsDropdown();
     this._document.removeEventListener('keydown', this.onKeyDown);
   }
 
@@ -469,7 +469,7 @@ class ReportUIFeatures {
    */
   onKeyDown(e) {
     if (e.keyCode === 27) { // ESC
-      this.closeExportDropdown();
+      this.closeToolsDropdown();
     }
   }
 
@@ -480,7 +480,7 @@ class ReportUIFeatures {
   onKeyUp(e) {
     // Ctrl+P - Expands audit details when user prints via keyboard shortcut.
     if ((e.ctrlKey || e.metaKey) && e.keyCode === 80) {
-      this.closeExportDropdown();
+      this.closeToolsDropdown();
     }
   }
 
diff --git a/lighthouse-core/report/html/report-styles.css b/lighthouse-core/report/html/report-styles.css
index e8eb75d52d0a..f7690d342391 100644
--- a/lighthouse-core/report/html/report-styles.css
+++ b/lighthouse-core/report/html/report-styles.css
@@ -41,8 +41,8 @@
   --report-min-width: 400px;
   --report-header-height: 161px;
   --lh-score-icon-background-size: 24px;
-  --lh-export-icon-size: var(--lh-score-icon-background-size);
-  --lh-export-icon-color: var(--medium-75-gray);
+  --lh-tools-icon-size: var(--lh-score-icon-background-size);
+  --lh-tools-icon-color: var(--medium-75-gray);
   --lh-table-higlight-bg: hsla(0, 0%, 75%, 0.1);
   --lh-sparkline-height: 5px;
   --lh-audit-vpadding: 8px;
diff --git a/lighthouse-core/report/html/templates.html b/lighthouse-core/report/html/templates.html
index ee4b388c69af..ffa2f896fd4c 100644
--- a/lighthouse-core/report/html/templates.html
+++ b/lighthouse-core/report/html/templates.html
@@ -253,40 +253,40 @@
       color: var(--body-text-color);
     }
 
-    .lh-export {
+    .lh-tools {
       margin-left: auto;
       will-change: transform;
     }
-    .lh-export__button {
-      width: var(--lh-export-icon-size);
-      height: var(--lh-export-icon-size);
+    .lh-tools__button {
+      width: var(--lh-tools-icon-size);
+      height: var(--lh-tools-icon-size);
       cursor: pointer;
       margin-right: 5px;
     }
     /*
-      Some features in the top right drop down menu don't work in the DevTools
+      Some features in the tools dropdown menu don't work in the DevTools
       client. They could with some tweaks, but currently they don't. For example:
       Saving as HTML/JSON - does not bring up a file dialog, as one would expect in DevTools.
                             also, it saves the AuditsPanel HTML, which is funky.
     */
-    .lh-devtools .lh-export__button {
+    .lh-devtools .lh-tools__button {
       display: none;
     }
-    .lh-export__button svg {
-      fill: var(--lh-export-icon-color);
+    .lh-tools__button svg {
+      fill: var(--lh-tools-icon-color);
     }
-    .dark .lh-export__button svg {
+    .dark .lh-tools__button svg {
       filter: invert(1);
     }
-    .lh-export__button:focus,
-    .lh-export__button.active {
+    .lh-tools__button:focus,
+    .lh-tools__button.active {
       outline: none;
     }
-    .lh-export__button.active + .lh-export__dropdown {
+    .lh-tools__button.active + .lh-tools__dropdown {
       opacity: 1;
       clip: rect(-1px, 187px, 242px, -3px);
     }
-    .lh-export__dropdown {
+    .lh-tools__dropdown {
       position: absolute;
       background-color: var(--body-background-color);
       border: 1px solid var(--report-border-color);
@@ -301,7 +301,7 @@
       opacity: 0;
       transition: all 200ms cubic-bezier(0,0,0.2,1);
     }
-    .lh-export__dropdown a {
+    .lh-tools__dropdown a {
       display: block;
       color: currentColor;
       text-decoration: none;
@@ -309,12 +309,12 @@
       padding: 0 12px;
       line-height: 2;
     }
-    .lh-export__dropdown a:hover,
-    .lh-export__dropdown a:focus {
+    .lh-tools__dropdown a:hover,
+    .lh-tools__dropdown a:focus {
       background-color: var(--color-black-200);
       outline: none;
     }
-    .lh-export__dropdown .report-icon {
+    .lh-tools__dropdown .report-icon {
       cursor: pointer;
       background-repeat: no-repeat;
       background-position: 8px 50%;
@@ -326,22 +326,22 @@
       color: var(--color-black-900);
       filter: invert(1);
     }
-    .dark .lh-export__dropdown a:hover,
-    .dark .lh-export__dropdown a:focus {
+    .dark .lh-tools__dropdown a:hover,
+    .dark .lh-tools__dropdown a:focus {
       background-color: #BDBDBD;
     }
     /* copy icon needs slight adjustments to look great */
-    .lh-export__dropdown .report-icon--copy {
+    .lh-tools__dropdown .report-icon--copy {
       background-size: 16px;
       background-position: 9px 50%;
     }
     /* save-as-gist option hidden in report */
-    .lh-export__dropdown .lh-export--gist {
+    .lh-tools__dropdown .lh-tools--gist {
       display: none;
     }
 
     @media screen and (max-width: 964px) {
-      .lh-export__dropdown {
+      .lh-tools__dropdown {
         right: 0;
         left: initial;
       }
@@ -365,22 +365,22 @@
 
     <a href="" class="lh-topbar__url" target="_blank" rel="noopener"></a>
 
-    <div class="lh-export">
-      <div class="report-icon report-icon--share lh-export__button" title="Export report">
+    <div class="lh-tools">
+      <div class="report-icon report-icon--share lh-tools__button" title="Export report">
         <svg width="100%" height="100%" viewBox="0 0 24 24">
             <path d="M0 0h24v24H0z" fill="none"/>
             <path d="M12 8c1.1 0 2-.9 2-2s-.9-2-2-2-2 .9-2 2 .9 2 2 2zm0 2c-1.1 0-2 .9-2 2s.9 2 2 2 2-.9 2-2-.9-2-2-2zm0 6c-1.1 0-2 .9-2 2s.9 2 2 2 2-.9 2-2-.9-2-2-2z"/>
         </svg>
       </div>
-      <div class="lh-export__dropdown">
-        <!-- TODO(i18n): localize export dropdown -->
+      <div class="lh-tools__dropdown">
+         <!-- TODO(i18n): localize tools dropdown -->
         <a href="#" class="report-icon report-icon--print" data-action="print-summary">Print Summary</a>
         <a href="#" class="report-icon report-icon--print" data-action="print-expanded">Print Expanded</a>
         <a href="#" class="report-icon report-icon--copy" data-action="copy">Copy JSON</a>
         <a href="#" class="report-icon report-icon--download" data-action="save-html">Save as HTML</a>
         <a href="#" class="report-icon report-icon--download" data-action="save-json">Save as JSON</a>
-        <a href="#" class="report-icon report-icon--open lh-export--viewer" data-action="open-viewer">Open in Viewer</a>
-        <a href="#" class="report-icon report-icon--open lh-export--gist" data-action="save-gist">Save as Gist</a>
+        <a href="#" class="report-icon report-icon--open lh-tools--viewer" data-action="open-viewer">Open in Viewer</a>
+        <a href="#" class="report-icon report-icon--open lh-tools--gist" data-action="save-gist">Save as Gist</a>
         <a href="#" class="report-icon report-icon--dark" data-action="toggle-dark">Toggle Dark Theme</a>
       </div>
     </div>
diff --git a/lighthouse-viewer/app/src/viewer-ui-features.js b/lighthouse-viewer/app/src/viewer-ui-features.js
index 0cb8a27e1f90..52f1b3407993 100644
--- a/lighthouse-viewer/app/src/viewer-ui-features.js
+++ b/lighthouse-viewer/app/src/viewer-ui-features.js
@@ -31,7 +31,7 @@ class ViewerUIFeatures extends ReportUIFeatures {
 
     // Disable option to save as gist if no callback for saving.
     if (!this._saveGistCallback) {
-      const saveGistItem = this._dom.find('.lh-export--gist', this._document);
+      const saveGistItem = this._dom.find('.lh-tools--gist', this._document);
       saveGistItem.setAttribute('disabled', 'true');
     }
   }
@@ -57,7 +57,7 @@ class ViewerUIFeatures extends ReportUIFeatures {
     }
 
     // Disable save-as-gist option after saving.
-    const saveGistItem = this._dom.find('.lh-export--gist', this._document);
+    const saveGistItem = this._dom.find('.lh-tools--gist', this._document);
     saveGistItem.setAttribute('disabled', 'true');
   }
 }
diff --git a/lighthouse-viewer/app/styles/viewer.css b/lighthouse-viewer/app/styles/viewer.css
index 9ab58e78125c..a4925187f355 100644
--- a/lighthouse-viewer/app/styles/viewer.css
+++ b/lighthouse-viewer/app/styles/viewer.css
@@ -116,11 +116,11 @@
 }
 
 /* open-in-viewer option hidden in Viewer */
-.lh-export__dropdown .lh-export--viewer {
+.lh-tools__dropdown .lh-tools--viewer {
   display: none;
 }
 
 /* open-in-gist option visible in Viewer */
-.lh-export__dropdown .lh-export--gist {
+.lh-tools__dropdown .lh-tools--gist {
   display: block !important;
 }

From cb32e4ec022c0e7be6c0c394e7c2594c83201032 Mon Sep 17 00:00:00 2001
From: Adam <adamhenson1979@gmail.com>
Date: Mon, 10 Jun 2019 10:51:51 -0400
Subject: [PATCH 026/110] docs(readme): related project: lighthouse-persist
 (#9161)

---
 readme.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/readme.md b/readme.md
index c0ce1e340842..50d447e5c40e 100644
--- a/readme.md
+++ b/readme.md
@@ -318,6 +318,7 @@ Other awesome open source projects that use Lighthouse.
 * **[lighthouse-lambda](https://github.com/joytocode/lighthouse-lambda)** - Run Lighthouse on AWS Lambda with prebuilt stable desktop Headless Chrome.
 * **[lighthouse-magic-light](https://github.com/manekinekko/lighthouse-magic-light)** set the color of the MagicLight Bluetooth Smart Light Bulb based on Lighthouse score
 * **[lighthouse-mocha-example](https://github.com/justinribeiro/lighthouse-mocha-example)** - gather performance metrics via Lighthouse and tests them in Mocha
+* **[lighthouse-persist](https://github.com/foo-software/lighthouse-persist)** - Run Lighthouse and upload HTML reports to an AWS S3 bucket.
 * **[lighthouse4u](https://github.com/godaddy/lighthouse4u)** - LH4U provides Google Lighthouse as a service, surfaced by both a friendly UI+API, and backed by Elastic Search for easy querying and visualization.
 * **[performance-budgets](https://performance-budgets.netlify.com/)** - Easily assert Lighthouse budgets with Docker.
 * **[pwmetrics](https://github.com/paulirish/pwmetrics/)** - gather performance metrics

From 0bb1e59963c078a4b564e54fd65c813b85eb8916 Mon Sep 17 00:00:00 2001
From: cjamcl <cjamcl@google.com>
Date: Tue, 11 Jun 2019 09:57:24 -0700
Subject: [PATCH 027/110] report: make tools menu focus-able (#9169)

---
 lighthouse-core/report/html/templates.html | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/lighthouse-core/report/html/templates.html b/lighthouse-core/report/html/templates.html
index ffa2f896fd4c..2e6d9cc3238c 100644
--- a/lighthouse-core/report/html/templates.html
+++ b/lighthouse-core/report/html/templates.html
@@ -262,6 +262,14 @@
       height: var(--lh-tools-icon-size);
       cursor: pointer;
       margin-right: 5px;
+      /* This is actually a button element, but we want to style it like a transparent div. */
+      display: flex;
+      background: none;
+      color: inherit;
+      border: none;
+      padding: 0;
+      font: inherit;
+      outline: inherit;
     }
     /*
       Some features in the tools dropdown menu don't work in the DevTools
@@ -278,13 +286,10 @@
     .dark .lh-tools__button svg {
       filter: invert(1);
     }
-    .lh-tools__button:focus,
-    .lh-tools__button.active {
-      outline: none;
-    }
     .lh-tools__button.active + .lh-tools__dropdown {
       opacity: 1;
       clip: rect(-1px, 187px, 242px, -3px);
+      visibility: visible;
     }
     .lh-tools__dropdown {
       position: absolute;
@@ -298,6 +303,7 @@
       box-shadow: 1px 1px 3px #ccc;
       min-width: 125px;
       clip: rect(0, 164px, 0, 0);
+      visibility: hidden;
       opacity: 0;
       transition: all 200ms cubic-bezier(0,0,0.2,1);
     }
@@ -366,12 +372,12 @@
     <a href="" class="lh-topbar__url" target="_blank" rel="noopener"></a>
 
     <div class="lh-tools">
-      <div class="report-icon report-icon--share lh-tools__button" title="Export report">
+      <button class="report-icon report-icon--share lh-tools__button" title="Export report">
         <svg width="100%" height="100%" viewBox="0 0 24 24">
             <path d="M0 0h24v24H0z" fill="none"/>
             <path d="M12 8c1.1 0 2-.9 2-2s-.9-2-2-2-2 .9-2 2 .9 2 2 2zm0 2c-1.1 0-2 .9-2 2s.9 2 2 2 2-.9 2-2-.9-2-2-2zm0 6c-1.1 0-2 .9-2 2s.9 2 2 2 2-.9 2-2-.9-2-2-2z"/>
         </svg>
-      </div>
+      </button>
       <div class="lh-tools__dropdown">
          <!-- TODO(i18n): localize tools dropdown -->
         <a href="#" class="report-icon report-icon--print" data-action="print-summary">Print Summary</a>

From a1bf2aff8aaf68b50840ba45fc17c19651e234c5 Mon Sep 17 00:00:00 2001
From: "dependabot-preview[bot]"
 <dependabot-preview[bot]@users.noreply.github.com>
Date: Tue, 11 Jun 2019 12:18:51 -0700
Subject: [PATCH 028/110] deps(security): bump extend from 3.0.0 to 3.0.2
 (#9184)

---
 yarn.lock | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/yarn.lock b/yarn.lock
index 6bc1183b6128..050128c60cdc 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3224,12 +3224,7 @@ extend-shallow@^3.0.0, extend-shallow@^3.0.2:
     assign-symbols "^1.0.0"
     is-extendable "^1.0.1"
 
-extend@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/extend/-/extend-3.0.0.tgz#5a474353b9f3353ddd8176dfd37b91c83a46f1d4"
-  integrity sha1-WkdDU7nzNT3dgXbf03uRyDpG8dQ=
-
-extend@~3.0.2:
+extend@^3.0.0, extend@~3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/extend/-/extend-3.0.2.tgz#f8b1136b4071fbd8eb140aff858b1019ec2915fa"
   integrity sha512-fjquC59cD7CyW6urNXK0FBufkZcoiGG80wTuPujX590cB5Ttln20E2UB4S/WARVqhXffZl2LNgS+gQdPIIim/g==

From 162ab75475456f193130480e07a5fbd86f116759 Mon Sep 17 00:00:00 2001
From: Paul Irish <paul.irish@gmail.com>
Date: Tue, 11 Jun 2019 13:25:20 -0700
Subject: [PATCH 029/110] proto: update processForProto method signature,
 string -> LH.Result (#9016)

---
 clients/lightrider/lightrider-entry.js        | 25 ++++++-------
 lighthouse-core/lib/proto-preprocessor.js     | 14 ++++----
 .../test/lib/proto-preprocessor-test.js       | 33 ++++++++++-------
 lighthouse-core/test/report/proto-test.js     | 35 +++++++++----------
 4 files changed, 54 insertions(+), 53 deletions(-)

diff --git a/clients/lightrider/lightrider-entry.js b/clients/lightrider/lightrider-entry.js
index 5bfb7ce78a02..49cfa55610ea 100644
--- a/clients/lightrider/lightrider-entry.js
+++ b/clients/lightrider/lightrider-entry.js
@@ -24,9 +24,9 @@ const LR_PRESETS = {
  * If configOverride is provided, lrDevice and categoryIDs are ignored.
  * @param {Connection} connection
  * @param {string} url
- * @param {LH.Flags} flags Lighthouse flags, including `output`
+ * @param {LH.Flags} flags Lighthouse flags
  * @param {{lrDevice?: 'desktop'|'mobile', categoryIDs?: Array<string>, logAssets: boolean, configOverride?: LH.Config.Json}} lrOpts Options coming from Lightrider
- * @return {Promise<string|Array<string>|void>}
+ * @return {Promise<string>}
  */
 async function runLighthouseInLR(connection, url, flags, lrOpts) {
   const {lrDevice, categoryIDs, logAssets, configOverride} = lrOpts;
@@ -52,22 +52,17 @@ async function runLighthouseInLR(connection, url, flags, lrOpts) {
 
   try {
     const runnerResult = await lighthouse(url, flags, config, connection);
-    if (!runnerResult) return;
+    if (!runnerResult) throw new Error('Lighthouse finished without a runnerResult');
 
-    // pre process the LHR for proto
-    if (flags.output === 'json' && typeof runnerResult.report === 'string') {
-      // When LR is called with |internal: {keep_raw_response: true, save_lighthouse_assets: true}|,
-      // this code will log artifacts to raw_response.artifacts.
-      if (logAssets) {
-        // @ts-ignore - Regenerate the report, but tack on the artifacts.
-        runnerResult.lhr.artifacts = runnerResult.artifacts;
-        runnerResult.report = JSON.stringify(runnerResult.lhr);
-      }
-
-      return preprocessor.processForProto(runnerResult.report);
+    // When LR is called with |internal: {keep_raw_response: true, save_lighthouse_assets: true}|,
+    // this code will log artifacts to raw_response.artifacts.
+    if (logAssets) {
+      // @ts-ignore - piggyback the artifacts on the LHR.
+      runnerResult.lhr.artifacts = runnerResult.artifacts;
     }
 
-    return runnerResult.report;
+    // pre process the LHR for proto
+    return JSON.stringify(preprocessor.processForProto(runnerResult.lhr));
   } catch (err) {
     // If an error ruined the entire lighthouse run, attempt to return a meaningful error.
     let runtimeError;
diff --git a/lighthouse-core/lib/proto-preprocessor.js b/lighthouse-core/lib/proto-preprocessor.js
index 0db83e1fe345..7f5142b9563d 100644
--- a/lighthouse-core/lib/proto-preprocessor.js
+++ b/lighthouse-core/lib/proto-preprocessor.js
@@ -16,11 +16,13 @@ const fs = require('fs');
  */
 
 /**
-  * @param {string} result
+  * Transform an LHR into a proto-friendly, mostly-compatible LHR.
+  * @param {LH.Result} lhr
+  * @return {LH.Result}
   */
-function processForProto(result) {
+function processForProto(lhr) {
   /** @type {LH.Result} */
-  const reportJson = JSON.parse(result);
+  const reportJson = JSON.parse(JSON.stringify(lhr));
 
   // Clean up the configSettings
   // Note: This is not strictly required for conversion if protobuf parsing is set to
@@ -95,7 +97,7 @@ function processForProto(result) {
 
   removeStrings(reportJson);
 
-  return JSON.stringify(reportJson);
+  return reportJson;
 }
 
 // @ts-ignore claims always false, but this checks if cli or module
@@ -113,9 +115,9 @@ if (require.main === module) {
 
   if (input && output) {
     // process the file
-    const report = processForProto(fs.readFileSync(input, 'utf-8'));
+    const report = processForProto(JSON.parse(fs.readFileSync(input, 'utf-8')));
     // write to output from argv
-    fs.writeFileSync(output, report, 'utf-8');
+    fs.writeFileSync(output, JSON.stringify(report), 'utf-8');
   }
 } else {
   module.exports = {
diff --git a/lighthouse-core/test/lib/proto-preprocessor-test.js b/lighthouse-core/test/lib/proto-preprocessor-test.js
index ca1761c88a52..1057a0bbe641 100644
--- a/lighthouse-core/test/lib/proto-preprocessor-test.js
+++ b/lighthouse-core/test/lib/proto-preprocessor-test.js
@@ -5,10 +5,17 @@
  */
 'use strict';
 
-const processForProto = require('../../lib/proto-preprocessor.js').processForProto;
+const {processForProto} = require('../../lib/proto-preprocessor.js');
+const sampleJson = require('../results/sample_v2.json');
 
 /* eslint-env jest */
 describe('processing for proto', () => {
+  it('doesn\'t modify the input object', () => {
+    const input = JSON.parse(JSON.stringify(sampleJson));
+    processForProto(input);
+    expect(input).toEqual(sampleJson);
+  });
+
   it('keeps only necessary configSettings', () => {
     const input = {
       'configSettings': {
@@ -44,9 +51,9 @@ describe('processing for proto', () => {
         'onlyCategories': null,
       },
     };
-    const output = processForProto(JSON.stringify(input));
+    const output = processForProto(input);
 
-    expect(JSON.parse(output)).toMatchObject(expectation);
+    expect(output).toMatchObject(expectation);
   });
 
   it('cleans up default runtimeErrors', () => {
@@ -56,9 +63,9 @@ describe('processing for proto', () => {
       },
     };
 
-    const output = processForProto(JSON.stringify(input));
+    const output = processForProto(input);
 
-    expect(JSON.parse(output)).not.toHaveProperty('runtimeError');
+    expect(output).not.toHaveProperty('runtimeError');
   });
 
   it('non-default runtimeErrors are untouched', () => {
@@ -68,9 +75,9 @@ describe('processing for proto', () => {
       },
     };
 
-    const output = processForProto(JSON.stringify(input));
+    const output = processForProto(input);
 
-    expect(JSON.parse(output)).toMatchObject(input);
+    expect(output).toMatchObject(input);
   });
 
   it('cleans up audits', () => {
@@ -91,9 +98,9 @@ describe('processing for proto', () => {
         },
       },
     };
-    const output = processForProto(JSON.stringify(input));
+    const output = processForProto(input);
 
-    expect(JSON.parse(output)).toMatchObject(expectation);
+    expect(output).toMatchObject(expectation);
   });
 
 
@@ -108,9 +115,9 @@ describe('processing for proto', () => {
     const expectation = {
       'i18n': {},
     };
-    const output = processForProto(JSON.stringify(input));
+    const output = processForProto(input);
 
-    expect(JSON.parse(output)).toMatchObject(expectation);
+    expect(output).toMatchObject(expectation);
   });
 
   it('removes empty strings', () => {
@@ -151,8 +158,8 @@ describe('processing for proto', () => {
         ],
       },
     };
-    const output = processForProto(JSON.stringify(input));
+    const output = processForProto(input);
 
-    expect(JSON.parse(output)).toMatchObject(expectation);
+    expect(output).toMatchObject(expectation);
   });
 });
diff --git a/lighthouse-core/test/report/proto-test.js b/lighthouse-core/test/report/proto-test.js
index a7d051c8b474..4425924c7992 100644
--- a/lighthouse-core/test/report/proto-test.js
+++ b/lighthouse-core/test/report/proto-test.js
@@ -5,60 +5,57 @@
  */
 'use strict';
 
-const path = require('path');
-const fs = require('fs');
-
-const sample = fs.readFileSync(path.resolve(__dirname, '../results/sample_v2.json'));
+const sampleJson = require('../results/sample_v2.json');
 const roundTripJson = require('../../../proto/sample_v2_round_trip.json');
 const preprocessor = require('../../lib/proto-preprocessor.js');
 
 /* eslint-env jest */
 
 describe('round trip JSON comparison subsets', () => {
-  let sampleJson;
+  let processedLHR;
 
   beforeEach(() => {
-    sampleJson = JSON.parse(preprocessor.processForProto(sample));
+    processedLHR = preprocessor.processForProto(sampleJson);
   });
 
   it('has the same audit results and details (if applicable)', () => {
-    for (const auditId of Object.keys(sampleJson.audits)) {
-      expect(roundTripJson.audits[auditId]).toEqual(sampleJson.audits[auditId]);
+    for (const auditId of Object.keys(processedLHR.audits)) {
+      expect(roundTripJson.audits[auditId]).toEqual(processedLHR.audits[auditId]);
     }
   });
 
   it('has the same i18n rendererFormattedStrings', () => {
-    expect(roundTripJson.i18n).toMatchObject(sampleJson.i18n);
+    expect(roundTripJson.i18n).toMatchObject(processedLHR.i18n);
   });
 
   it('has the same top level values', () => {
     // Don't test all top level properties that are objects.
-    Object.keys(sampleJson).forEach(audit => {
-      if (typeof sampleJson[audit] === 'object' && !Array.isArray(sampleJson[audit])) {
-        delete sampleJson[audit];
+    Object.keys(processedLHR).forEach(audit => {
+      if (typeof processedLHR[audit] === 'object' && !Array.isArray(processedLHR[audit])) {
+        delete processedLHR[audit];
       }
     });
 
     // Properties set to their type's default value will be omitted in the roundTripJson.
     // For an explicit list of properties, remove sampleJson values if set to a default.
-    if (Array.isArray(sampleJson.stackPacks) && sampleJson.stackPacks.length === 0) {
-      delete sampleJson.stackPacks;
+    if (Array.isArray(processedLHR.stackPacks) && processedLHR.stackPacks.length === 0) {
+      delete processedLHR.stackPacks;
     }
 
-    expect(roundTripJson).toMatchObject(sampleJson);
+    expect(roundTripJson).toMatchObject(processedLHR);
   });
 
   it('has the same config values', () => {
     // Config settings from proto round trip should be a subset of the actual settings.
-    expect(sampleJson.configSettings).toMatchObject(roundTripJson.configSettings);
+    expect(processedLHR.configSettings).toMatchObject(roundTripJson.configSettings);
   });
 });
 
 describe('round trip JSON comparison to everything', () => {
-  let sampleJson;
+  let processedLHR;
 
   beforeEach(() => {
-    sampleJson = JSON.parse(preprocessor.processForProto(sample));
+    processedLHR = preprocessor.processForProto(sampleJson);
 
     // Proto conversion turns empty summaries into null. This is OK,
     // and is handled in the PSI roundtrip just fine, but messes up the easy
@@ -71,6 +68,6 @@ describe('round trip JSON comparison to everything', () => {
   });
 
   it('has the same JSON overall', () => {
-    expect(sampleJson).toMatchObject(roundTripJson);
+    expect(processedLHR).toMatchObject(roundTripJson);
   });
 });

From f8971e2f240ad73042218ade0f0d14999e4186d3 Mon Sep 17 00:00:00 2001
From: cjamcl <cjamcl@google.com>
Date: Tue, 11 Jun 2019 13:55:07 -0700
Subject: [PATCH 030/110] report: only print light theme (#9173)

---
 lighthouse-core/report/html/report-styles.css | 64 ++++++++++---------
 1 file changed, 33 insertions(+), 31 deletions(-)

diff --git a/lighthouse-core/report/html/report-styles.css b/lighthouse-core/report/html/report-styles.css
index f7690d342391..62d1cb231ca9 100644
--- a/lighthouse-core/report/html/report-styles.css
+++ b/lighthouse-core/report/html/report-styles.css
@@ -144,37 +144,39 @@
   --pwa-optimized-color-url: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><rect fill="%230CCE6B" width="24" height="24" rx="12"/><path d="M5 5h14v14H5z"/><path fill="%23FFF" d="M12 15.07l3.6 2.18-.95-4.1 3.18-2.76-4.2-.36L12 6.17l-1.64 3.86-4.2.36 3.2 2.76-.96 4.1z"/></g></svg>');
 }
 
-.lh-vars.dark {
-  --color-red-700: var(--color-red);
-  --color-green-700: var(--color-green);
-  --color-teal-600: var(--color-cyan-500);
-  --color-orange-700: var(--color-orange);
-
-  --color-black-200: var(--color-black-800);
-  --color-black-400: var(--color-black-600);
-  --color-black-600: var(--color-black-500);
-
-  --topbar-bg: var(--color-black);
-  --plugin-badge-bg: var(--color-black-800);
-  --env-item-bg: var(--color-black);
-  --report-secondary-border-color: var(--color-black-200);
-
-  --body-background-color: var(--color-black-900);
-  --body-text-color: var(--color-black-100);
-  --secondary-text-color: var(--color-black-400);
-
-  --plugin-icon-url: var(--plugin-icon-url-dark);
-
-  --informative-color: var(--color-blue-200);
-
-  --medium-50-gray: #757575;
-  --medium-75-gray: var(--color-white);
-
-  --color-hover: rgba(0, 0, 0, 0.2);
-
-  --pwa-fast-reliable-gray-url: var(--pwa-fast-reliable-gray-url-dark);
-  --pwa-installable-gray-url: var(--pwa-installable-gray-url-dark);
-  --pwa-optimized-gray-url: var(--pwa-optimized-gray-url-dark);
+@media not print {
+  .lh-vars.dark {
+    --color-red-700: var(--color-red);
+    --color-green-700: var(--color-green);
+    --color-teal-600: var(--color-cyan-500);
+    --color-orange-700: var(--color-orange);
+  
+    --color-black-200: var(--color-black-800);
+    --color-black-400: var(--color-black-600);
+    --color-black-600: var(--color-black-500);
+  
+    --topbar-bg: var(--color-black);
+    --plugin-badge-bg: var(--color-black-800);
+    --env-item-bg: var(--color-black);
+    --report-secondary-border-color: var(--color-black-200);
+  
+    --body-background-color: var(--color-black-900);
+    --body-text-color: var(--color-black-100);
+    --secondary-text-color: var(--color-black-400);
+  
+    --plugin-icon-url: var(--plugin-icon-url-dark);
+  
+    --informative-color: var(--color-blue-200);
+  
+    --medium-50-gray: #757575;
+    --medium-75-gray: var(--color-white);
+  
+    --color-hover: rgba(0, 0, 0, 0.2);
+  
+    --pwa-fast-reliable-gray-url: var(--pwa-fast-reliable-gray-url-dark);
+    --pwa-installable-gray-url: var(--pwa-installable-gray-url-dark);
+    --pwa-optimized-gray-url: var(--pwa-optimized-gray-url-dark);
+  }
 }
 
 @media only screen and (max-width: 480px) {

From 233f197c7ab12081c569fd61814802863a183290 Mon Sep 17 00:00:00 2001
From: Brendan Kenny <bckenny@gmail.com>
Date: Tue, 11 Jun 2019 15:21:31 -0700
Subject: [PATCH 031/110] report: ensure SVG elements in <defs> have unique ids
 (#9151)

---
 .../html/renderer/pwa-category-renderer.js    | 47 +++++++++++++++++++
 lighthouse-core/report/html/templates.html    |  8 ++--
 .../renderer/pwa-category-renderer-test.js    | 34 +++++++++++++-
 3 files changed, 84 insertions(+), 5 deletions(-)

diff --git a/lighthouse-core/report/html/renderer/pwa-category-renderer.js b/lighthouse-core/report/html/renderer/pwa-category-renderer.js
index 0c96c60159b7..1b49cff5c0ce 100644
--- a/lighthouse-core/report/html/renderer/pwa-category-renderer.js
+++ b/lighthouse-core/report/html/renderer/pwa-category-renderer.js
@@ -18,6 +18,16 @@
 
 /* globals self, Util, CategoryRenderer */
 
+/**
+ * An always-increasing counter for making unique SVG ID suffixes.
+ */
+const getUniqueSuffix = (() => {
+  let svgSuffix = 0;
+  return function() {
+    return svgSuffix++;
+  };
+})();
+
 class PwaCategoryRenderer extends CategoryRenderer {
   /**
    * @param {LH.ReportResult.Category} category
@@ -62,6 +72,11 @@ class PwaCategoryRenderer extends CategoryRenderer {
       tmpl));
     wrapper.href = `#${category.id}`;
 
+    // Correct IDs in case multiple instances end up in the page.
+    const svgRoot = tmpl.querySelector('svg');
+    if (!svgRoot) throw new Error('no SVG element found in PWA score gauge template');
+    PwaCategoryRenderer._makeSvgReferencesUnique(svgRoot);
+
     const allGroups = this._getGroupIds(category.auditRefs);
     const passingGroupIds = this._getPassingGroupIds(category.auditRefs);
 
@@ -147,6 +162,38 @@ class PwaCategoryRenderer extends CategoryRenderer {
 
     return auditsElem;
   }
+
+  /**
+   * Alters SVG id references so multiple instances of an SVG element can coexist
+   * in a single page. If `svgRoot` has a `<defs>` block, gives all elements defined
+   * in it unique ids, then updates id references (`<use xlink:href="...">`,
+   * `fill="url(#...)"`) to the altered ids in all descendents of `svgRoot`.
+   * @param {SVGElement} svgRoot
+   */
+  static _makeSvgReferencesUnique(svgRoot) {
+    const defsEl = svgRoot.querySelector('defs');
+    if (!defsEl) return;
+
+    const idSuffix = getUniqueSuffix();
+    const elementsToUpdate = defsEl.querySelectorAll('[id]');
+    for (const el of elementsToUpdate) {
+      const oldId = el.id;
+      const newId = `${oldId}-${idSuffix}`;
+      el.id = newId;
+
+      // Update all <use>s.
+      const useEls = svgRoot.querySelectorAll(`use[href="#${oldId}"]`);
+      for (const useEl of useEls) {
+        useEl.setAttribute('href', `#${newId}`);
+      }
+
+      // Update all fill="url(#...)"s.
+      const fillEls = svgRoot.querySelectorAll(`[fill="url(#${oldId})"]`);
+      for (const fillEl of fillEls) {
+        fillEl.setAttribute('fill', `url(#${newId})`);
+      }
+    }
+  }
 }
 
 if (typeof module !== 'undefined' && module.exports) {
diff --git a/lighthouse-core/report/html/templates.html b/lighthouse-core/report/html/templates.html
index 2e6d9cc3238c..50bbed8c2ec8 100644
--- a/lighthouse-core/report/html/templates.html
+++ b/lighthouse-core/report/html/templates.html
@@ -675,24 +675,24 @@
         <!-- Just fast and reliable. -->
         <g class="lh-gauge--pwa__component lh-gauge--pwa__fast-reliable-badge" transform="translate(20, 29)">
           <path fill="url(#lh-gauge--pwa__fast-reliable__shadow-gradient)" d="M33.63 19.49A30 30 0 0 1 16.2 30.36L3 17.14 17.14 3l16.49 16.49z"/>
-          <use xlink:href="#lh-gauge--pwa__fast-reliable-badge" />
+          <use href="#lh-gauge--pwa__fast-reliable-badge" />
         </g>
 
         <!-- Just installable. -->
         <g class="lh-gauge--pwa__component lh-gauge--pwa__installable-badge" transform="translate(20, 29)">
           <path fill="url(#lh-gauge--pwa__installable__shadow-gradient)" d="M33.629 19.487c-4.272 5.453-10.391 9.39-17.415 10.869L3 17.142 17.142 3 33.63 19.487z"/>
-          <use xlink:href="#lh-gauge--pwa__installable-badge" />
+          <use href="#lh-gauge--pwa__installable-badge" />
         </g>
 
         <!-- Fast and reliable and installable. -->
         <g class="lh-gauge--pwa__component lh-gauge--pwa__fast-reliable-installable-badges">
           <g transform="translate(8, 29)"> <!-- fast and reliable -->
             <path fill="url(#lh-gauge--pwa__fast-reliable__shadow-gradient)" d="M16.321 30.463L3 17.143 17.142 3l22.365 22.365A29.864 29.864 0 0 1 22 31c-1.942 0-3.84-.184-5.679-.537z"/>
-            <use xlink:href="#lh-gauge--pwa__fast-reliable-badge" />
+            <use href="#lh-gauge--pwa__fast-reliable-badge" />
           </g>
           <g transform="translate(32, 29)"> <!-- installable -->
             <path fill="url(#lh-gauge--pwa__installable__shadow-gradient)" d="M25.982 11.84a30.107 30.107 0 0 1-13.08 15.203L3 17.143 17.142 3l8.84 8.84z"/>
-            <use xlink:href="#lh-gauge--pwa__installable-badge" />
+            <use href="#lh-gauge--pwa__installable-badge" />
           </g>
         </g>
 
diff --git a/lighthouse-core/test/report/html/renderer/pwa-category-renderer-test.js b/lighthouse-core/test/report/html/renderer/pwa-category-renderer-test.js
index 8bbe83b1d6a6..e71a81f5d1ad 100644
--- a/lighthouse-core/test/report/html/renderer/pwa-category-renderer-test.js
+++ b/lighthouse-core/test/report/html/renderer/pwa-category-renderer-test.js
@@ -242,7 +242,7 @@ describe('PwaCategoryRenderer', () => {
   describe('#renderScoreGauge', () => {
     it('renders an error score gauge in case of category error', () => {
       category.score = null;
-      const badgeGauge = pwaRenderer.renderScoreGauge(category);
+      const badgeGauge = pwaRenderer.renderScoreGauge(category, sampleResults.categoryGroups);
 
       // Not a PWA gauge.
       assert.strictEqual(badgeGauge.querySelector('.lh-gauge--pwa__wrapper'), null);
@@ -251,5 +251,37 @@ describe('PwaCategoryRenderer', () => {
       assert.strictEqual(percentageElem.textContent, '?');
       assert.strictEqual(percentageElem.title, Util.UIStrings.errorLabel);
     });
+
+    it('renders score gauges with unique ids for items in <defs>', () => {
+      const gauge1 = pwaRenderer.renderScoreGauge(category, sampleResults.categoryGroups);
+      const gauge1Ids = [...gauge1.querySelectorAll('defs [id]')].map(el => el.id);
+      assert.ok(gauge1Ids.length > 3);
+
+      const gauge2 = pwaRenderer.renderScoreGauge(category, sampleResults.categoryGroups);
+      const gauge2Ids = [...gauge2.querySelectorAll('defs [id]')].map(el => el.id);
+      assert.ok(gauge2Ids.length === gauge1Ids.length);
+
+      /** Returns whether id is used by at least one <use> or fill under `rootEl`. */
+      function idInUseElOrFillAttr(rootEl, id) {
+        const isUse = rootEl.querySelector(`use[href="#${id}"]`);
+        const isFill = rootEl.querySelector(`[fill="url(#${id})"]`);
+
+        return !!(isUse || isFill);
+      }
+
+      // Check that each gauge1 ID is actually used in gauge1 and isn't used in gauge2.
+      for (const gauge1Id of gauge1Ids) {
+        assert.equal(idInUseElOrFillAttr(gauge1, gauge1Id), true);
+        assert.ok(!gauge2Ids.includes(gauge1Id));
+        assert.equal(idInUseElOrFillAttr(gauge2, gauge1Id), false);
+      }
+
+      // And that the reverse is true for gauge2 IDs.
+      for (const gauge2Id of gauge2Ids) {
+        assert.equal(idInUseElOrFillAttr(gauge1, gauge2Id), false);
+        assert.equal(idInUseElOrFillAttr(gauge2, gauge2Id), true);
+        assert.ok(!gauge1Ids.includes(gauge2Id));
+      }
+    });
   });
 });

From 7bcd1b4c84110c83acaa4df18b0c82e905673868 Mon Sep 17 00:00:00 2001
From: Brendan Kenny <bckenny@gmail.com>
Date: Tue, 11 Jun 2019 15:31:34 -0700
Subject: [PATCH 032/110] report: position sticky-header highlighter with css
 grid (#9186)

---
 lighthouse-core/report/html/renderer/report-ui-features.js | 5 ++---
 lighthouse-core/report/html/templates.html                 | 7 +++++--
 2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/lighthouse-core/report/html/renderer/report-ui-features.js b/lighthouse-core/report/html/renderer/report-ui-features.js
index 213199757c28..df9583dacf84 100644
--- a/lighthouse-core/report/html/renderer/report-ui-features.js
+++ b/lighthouse-core/report/html/renderer/report-ui-features.js
@@ -314,9 +314,8 @@ class ReportUIFeatures {
     this.scoreScaleEl = this._dom.find('.lh-scorescale', this._document);
     this.stickyHeaderEl = this._dom.find('.lh-sticky-header', this._document);
 
-    // Position highlighter at first gauge; will be transformed on scroll.
-    const firstGauge = this._dom.find('.lh-gauge__wrapper', this.stickyHeaderEl);
-    this.highlightEl = this._dom.createChildOf(firstGauge, 'div', 'lh-highlighter');
+    // Highlighter will be absolutely positioned at first gauge, then transformed on scroll.
+    this.highlightEl = this._dom.createChildOf(this.stickyHeaderEl, 'div', 'lh-highlighter');
   }
 
   /**
diff --git a/lighthouse-core/report/html/templates.html b/lighthouse-core/report/html/templates.html
index 50bbed8c2ec8..0323cf54db7d 100644
--- a/lighthouse-core/report/html/templates.html
+++ b/lighthouse-core/report/html/templates.html
@@ -186,7 +186,8 @@
     }
 
     .lh-sticky-header--visible {
-      display: flex;
+      display: grid;
+      grid-auto-flow: column;
       pointer-events: auto;
     }
 
@@ -204,8 +205,10 @@
       width: var(--score-container-width);
       height: 1px;
       background: var(--color-highlighter-bg);
+      /* Position at bottom of first gauge in sticky header. */
       position: absolute;
-      bottom: -5px;
+      grid-column: 1;
+      bottom: -1px;
     }
 
     .lh-gauge__wrapper:first-of-type {

From d18ad42edb165d05d55dd2a67e1b87746887fc07 Mon Sep 17 00:00:00 2001
From: cjamcl <cjamcl@gmail.com>
Date: Tue, 11 Jun 2019 17:27:47 -0700
Subject: [PATCH 033/110] report(devtools): enable report features (#9157)

---
 build/build-dt-report-resources.js                       | 4 ++--
 .../report/html/renderer/report-ui-features.js           | 8 ++++++--
 lighthouse-core/report/html/templates.html               | 9 ---------
 3 files changed, 8 insertions(+), 13 deletions(-)

diff --git a/build/build-dt-report-resources.js b/build/build-dt-report-resources.js
index 0e568c59fbac..4793c6243e34 100644
--- a/build/build-dt-report-resources.js
+++ b/build/build-dt-report-resources.js
@@ -36,8 +36,8 @@ writeFile('templates.html', htmlReportAssets.REPORT_TEMPLATES);
 
 const pathToReportAssets = require.resolve('../clients/devtools-report-assets.js');
 browserify(generatorFilename, {standalone: 'Lighthouse.ReportGenerator'})
-  // Shims './html/html-report-assets' to resolve to devtools-report-assets.
-  .require(pathToReportAssets, {expose: './html/html-report-assets'})
+  // Shims './html/html-report-assets.js' to resolve to devtools-report-assets.js
+  .require(pathToReportAssets, {expose: './html/html-report-assets.js'})
   .bundle((err, src) => {
     if (err) throw err;
     fs.writeFileSync(bundleOutFile, src.toString());
diff --git a/lighthouse-core/report/html/renderer/report-ui-features.js b/lighthouse-core/report/html/renderer/report-ui-features.js
index df9583dacf84..ab947a78f319 100644
--- a/lighthouse-core/report/html/renderer/report-ui-features.js
+++ b/lighthouse-core/report/html/renderer/report-ui-features.js
@@ -420,12 +420,12 @@ class ReportUIFeatures {
       case 'print-summary':
         this.collapseAllDetails();
         this.closeToolsDropdown();
-        self.print();
+        this._print();
         break;
       case 'print-expanded':
         this.expandAllDetails();
         this.closeToolsDropdown();
-        self.print();
+        this._print();
         break;
       case 'save-json': {
         const jsonStr = JSON.stringify(this.json, null, 2);
@@ -462,6 +462,10 @@ class ReportUIFeatures {
     this._document.removeEventListener('keydown', this.onKeyDown);
   }
 
+  _print() {
+    self.print();
+  }
+
   /**
    * Keydown handler for the document.
    * @param {KeyboardEvent} e
diff --git a/lighthouse-core/report/html/templates.html b/lighthouse-core/report/html/templates.html
index 0323cf54db7d..01498480b615 100644
--- a/lighthouse-core/report/html/templates.html
+++ b/lighthouse-core/report/html/templates.html
@@ -274,15 +274,6 @@
       font: inherit;
       outline: inherit;
     }
-    /*
-      Some features in the tools dropdown menu don't work in the DevTools
-      client. They could with some tweaks, but currently they don't. For example:
-      Saving as HTML/JSON - does not bring up a file dialog, as one would expect in DevTools.
-                            also, it saves the AuditsPanel HTML, which is funky.
-    */
-    .lh-devtools .lh-tools__button {
-      display: none;
-    }
     .lh-tools__button svg {
       fill: var(--lh-tools-icon-color);
     }

From 8ff0330726c0652c2cbc06015f1349ac329bf924 Mon Sep 17 00:00:00 2001
From: Paul Irish <paulirish@google.com>
Date: Tue, 11 Jun 2019 17:59:04 -0700
Subject: [PATCH 034/110] report: update permalink calculations for correct
 hash nav scroll position (#9188)

---
 lighthouse-core/report/html/report-styles.css | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/lighthouse-core/report/html/report-styles.css b/lighthouse-core/report/html/report-styles.css
index 62d1cb231ca9..d1752a9dc00e 100644
--- a/lighthouse-core/report/html/report-styles.css
+++ b/lighthouse-core/report/html/report-styles.css
@@ -39,7 +39,6 @@
   --display-value-gray: hsl(216, 5%, 39%);
   --report-width: calc(60 * var(--body-font-size));
   --report-min-width: 400px;
-  --report-header-height: 161px;
   --lh-score-icon-background-size: 24px;
   --lh-tools-icon-size: var(--lh-score-icon-background-size);
   --lh-tools-icon-color: var(--medium-75-gray);
@@ -1212,8 +1211,10 @@
    https://css-tricks.com/hash-tag-links-padding/
 */
 .lh-category > .lh-permalink {
-  margin-top: calc((var(--report-header-height) + var(--default-padding)) * -1);
-  padding-bottom: calc(var(--report-header-height) + var(--default-padding));
+  --sticky-header-height: calc(var(--gauge-circle-size) + var(--score-container-padding) * 2);
+  --topbar-plus-header: calc(var(--topbar-height) + var(--sticky-header-height));
+  margin-top: calc(var(--topbar-plus-header) * -1);
+  padding-bottom: var(--topbar-plus-header);
   display: block;
   visibility: hidden;
 }

From 0c4f2a72fabd6445c41b6d0183cc00f52c4d514f Mon Sep 17 00:00:00 2001
From: Justin Ribeiro <justin@justinribeiro.com>
Date: Wed, 12 Jun 2019 07:59:46 -0700
Subject: [PATCH 035/110] docs(readme): related project:
 lighthouse-jest-example (#9172)

---
 readme.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/readme.md b/readme.md
index 50d447e5c40e..9008202926e7 100644
--- a/readme.md
+++ b/readme.md
@@ -315,6 +315,7 @@ Other awesome open source projects that use Lighthouse.
 * **[lighthouse-cron](https://github.com/thearegee/lighthouse-cron)** - Cron multiple batch Lighthouse audits and emit results for sending to remote server.
 * **[lighthouse-gh-reporter](https://github.com/carlesnunez/lighthouse-gh-reporter)** - Run Lighthouse in CI and report back in a comment on your pull requests
 * **[lighthouse-hue](https://github.com/ebidel/lighthouse-hue)** - set the color of Philips Hue lights based on a Lighthouse score
+* **[lighthouse-jest-example](https://github.com/justinribeiro/lighthouse-jest-example)** - gather performance metrics via Lighthouse and assert results with Jest; uses Puppeteer to start Chrome with network emulation settings defined by WebPageTest.
 * **[lighthouse-lambda](https://github.com/joytocode/lighthouse-lambda)** - Run Lighthouse on AWS Lambda with prebuilt stable desktop Headless Chrome.
 * **[lighthouse-magic-light](https://github.com/manekinekko/lighthouse-magic-light)** set the color of the MagicLight Bluetooth Smart Light Bulb based on Lighthouse score
 * **[lighthouse-mocha-example](https://github.com/justinribeiro/lighthouse-mocha-example)** - gather performance metrics via Lighthouse and tests them in Mocha

From 6c90731af4d7b4c2aca107da6c18edf6fab9584b Mon Sep 17 00:00:00 2001
From: Shane Exterkamp <shaneexterkamp5@gmail.com>
Date: Wed, 12 Jun 2019 11:40:26 -0400
Subject: [PATCH 036/110] i18n: add es-419 (#9171)

---
 lighthouse-core/lib/i18n/locales.js          |   25 +
 lighthouse-core/lib/i18n/locales/es-419.json | 1064 ++++++++++++++++++
 lighthouse-core/lib/i18n/locales/pt.json     |    2 +-
 types/externs.d.ts                           |    2 +-
 4 files changed, 1091 insertions(+), 2 deletions(-)
 create mode 100644 lighthouse-core/lib/i18n/locales/es-419.json

diff --git a/lighthouse-core/lib/i18n/locales.js b/lighthouse-core/lib/i18n/locales.js
index 273f778b72e6..37f76548cd8f 100644
--- a/lighthouse-core/lib/i18n/locales.js
+++ b/lighthouse-core/lib/i18n/locales.js
@@ -40,6 +40,31 @@ const locales = {
   'el': require('./locales/el.json'),
   'en-XA': require('./locales/en-XA.json'), // psuedolocalization
   'es': require('./locales/es.json'),
+  'es-419': require('./locales/es-419.json'),
+  // Aliases of es-419: https://raw.githubusercontent.com/unicode-cldr/cldr-core/master/supplemental/parentLocales.json
+  'es-AR': require('./locales/es-419.json'),
+  'es-BO': require('./locales/es-419.json'),
+  'es-BR': require('./locales/es-419.json'),
+  'es-BZ': require('./locales/es-419.json'),
+  'es-CL': require('./locales/es-419.json'),
+  'es-CO': require('./locales/es-419.json'),
+  'es-CR': require('./locales/es-419.json'),
+  'es-CU': require('./locales/es-419.json'),
+  'es-DO': require('./locales/es-419.json'),
+  'es-EC': require('./locales/es-419.json'),
+  'es-GT': require('./locales/es-419.json'),
+  'es-HN': require('./locales/es-419.json'),
+  'es-MX': require('./locales/es-419.json'),
+  'es-NI': require('./locales/es-419.json'),
+  'es-PA': require('./locales/es-419.json'),
+  'es-PE': require('./locales/es-419.json'),
+  'es-PR': require('./locales/es-419.json'),
+  'es-PY': require('./locales/es-419.json'),
+  'es-SV': require('./locales/es-419.json'),
+  'es-US': require('./locales/es-419.json'),
+  'es-UY': require('./locales/es-419.json'),
+  'es-VE': require('./locales/es-419.json'),
+
   'fi': require('./locales/fi.json'),
   'fil': require('./locales/fil.json'),
   'fr': require('./locales/fr.json'), // fr-CH identical, so it falls back into fr
diff --git a/lighthouse-core/lib/i18n/locales/es-419.json b/lighthouse-core/lib/i18n/locales/es-419.json
new file mode 100644
index 000000000000..2e594f377580
--- /dev/null
+++ b/lighthouse-core/lib/i18n/locales/es-419.json
@@ -0,0 +1,1064 @@
+{
+  "lighthouse-core/audits/accessibility/accesskeys.js | description": {
+    "message": "Las claves de acceso permiten a los usuarios dirigirse rápidamente a una parte concreta de la página. Para facilitar una navegación correcta, las claves de acceso deben ser únicas. [Más información](https://dequeuniversity.com/rules/axe/3.1/accesskeys?application=lighthouse)"
+  },
+  "lighthouse-core/audits/accessibility/accesskeys.js | failureTitle": {
+    "message": "Los valores de \"[accesskey]\" no son únicos"
+  },
+  "lighthouse-core/audits/accessibility/accesskeys.js | title": {
+    "message": "Los valores de \"[accesskey]\" son únicos"
+  },
+  "lighthouse-core/audits/accessibility/aria-allowed-attr.js | description": {
+    "message": "Cada función de ARIA admite un subconjunto determinado de atributos \"aria-*\". Si no coinciden, se invalidarán los atributos \"aria-*\". [Más información](https://dequeuniversity.com/rules/axe/3.1/aria-allowed-attr?application=lighthouse)"
+  },
+  "lighthouse-core/audits/accessibility/aria-allowed-attr.js | failureTitle": {
+    "message": "Los atributos \"[aria-*]\" no se corresponden con sus funciones"
+  },
+  "lighthouse-core/audits/accessibility/aria-allowed-attr.js | title": {
+    "message": "Los atributos \"[aria-*]\" se corresponden con sus funciones"
+  },
+  "lighthouse-core/audits/accessibility/aria-required-attr.js | description": {
+    "message": "Algunas funciones de ARIA incluyen atributos obligatorios que describen el estado del elemento a los lectores de pantalla. [Más información](https://dequeuniversity.com/rules/axe/3.1/aria-required-attr?application=lighthouse)"
+  },
+  "lighthouse-core/audits/accessibility/aria-required-attr.js | failureTitle": {
+    "message": "\"[role]\" no incluyen todos los atributos \"[aria-*]\" necesarios"
+  },
+  "lighthouse-core/audits/accessibility/aria-required-attr.js | title": {
+    "message": "\"[role]\" incluyen todos los atributos \"[aria-*]\" necesarios"
+  },
+  "lighthouse-core/audits/accessibility/aria-required-children.js | description": {
+    "message": "Algunas funciones principales de ARIA deben contener funciones secundarias específicas para llevar a cabo las funciones de accesibilidad correspondientes. [Más información](https://dequeuniversity.com/rules/axe/3.1/aria-required-children?application=lighthouse)"
+  },
+  "lighthouse-core/audits/accessibility/aria-required-children.js | failureTitle": {
+    "message": "Faltan elementos con atributos \"[role]\" que requieren otros atributos \"[role]\" secundarios específicos."
+  },
+  "lighthouse-core/audits/accessibility/aria-required-children.js | title": {
+    "message": "Se incluyeron los elementos con atributos \"[role]\" que requieren otros atributos \"[role]\" secundarios específicos"
+  },
+  "lighthouse-core/audits/accessibility/aria-required-parent.js | description": {
+    "message": "Algunas funciones secundarias de ARIA se deben incluir dentro de funciones principales concretas para poder llevar a cabo las funciones de accesibilidad correspondientes. [Más información](https://dequeuniversity.com/rules/axe/3.1/aria-required-parent?application=lighthouse)"
+  },
+  "lighthouse-core/audits/accessibility/aria-required-parent.js | failureTitle": {
+    "message": "Los atributos \"[role]\" no se incluyen en los elementos principales necesarios"
+  },
+  "lighthouse-core/audits/accessibility/aria-required-parent.js | title": {
+    "message": "Los atributos \"[role]\" están incluidos en los elementos principales correspondientes"
+  },
+  "lighthouse-core/audits/accessibility/aria-roles.js | description": {
+    "message": "Las funciones de ARIA deben tener valores válidos para realizar las funciones de accesibilidad correspondientes. [Más información](https://dequeuniversity.com/rules/axe/3.1/aria-roles?application=lighthouse)"
+  },
+  "lighthouse-core/audits/accessibility/aria-roles.js | failureTitle": {
+    "message": "Los valores de \"[role]\" no son válidos"
+  },
+  "lighthouse-core/audits/accessibility/aria-roles.js | title": {
+    "message": "Los valores de \"[role]\" son válidos"
+  },
+  "lighthouse-core/audits/accessibility/aria-valid-attr-value.js | description": {
+    "message": "Las tecnologías asistivas, como lectores de pantalla, no pueden interpretar atributos ARIA con valores no válidos. [Más información](https://dequeuniversity.com/rules/axe/3.1/aria-valid-attr-value?application=lighthouse)"
+  },
+  "lighthouse-core/audits/accessibility/aria-valid-attr-value.js | failureTitle": {
+    "message": "Los atributos \"[aria-*]\" no tienen valores válidos"
+  },
+  "lighthouse-core/audits/accessibility/aria-valid-attr-value.js | title": {
+    "message": "Los atributos \"[aria-*]\" tienen un valor válido"
+  },
+  "lighthouse-core/audits/accessibility/aria-valid-attr.js | description": {
+    "message": "Las tecnologías de asistencia, como los lectores de pantalla, no pueden interpretar los atributos ARIA cuyos valores no sean válidos. [Más información](https://dequeuniversity.com/rules/axe/3.1/aria-valid-attr?application=lighthouse)"
+  },
+  "lighthouse-core/audits/accessibility/aria-valid-attr.js | failureTitle": {
+    "message": "Los atributos \"[aria-*]\" no son válidos o no están bien escritos"
+  },
+  "lighthouse-core/audits/accessibility/aria-valid-attr.js | title": {
+    "message": "Los atributos \"[aria-*]\" son válidos y están bien escritos"
+  },
+  "lighthouse-core/audits/accessibility/audio-caption.js | description": {
+    "message": "Los subtítulos permiten que los elementos de audio sean útiles para usuarios sordos o con problemas de audición, dado que proporcionan información fundamental, como identificar quién habla, lo que dicen y otros sonidos no verbales. [Más información](https://dequeuniversity.com/rules/axe/3.1/audio-caption?application=lighthouse)"
+  },
+  "lighthouse-core/audits/accessibility/audio-caption.js | failureTitle": {
+    "message": "Falta un elemento \"<track>\" con \"[kind=\"captions\"]\" en los elementos \"<audio>\"."
+  },
+  "lighthouse-core/audits/accessibility/audio-caption.js | title": {
+    "message": "Los elementos \"<audio>\" contienen un elemento \"<track>\" con \"[kind=\"captions\"]\""
+  },
+  "lighthouse-core/audits/accessibility/axe-audit.js | failingElementsHeader": {
+    "message": "Elementos con errores"
+  },
+  "lighthouse-core/audits/accessibility/button-name.js | description": {
+    "message": "Si un botón no tiene un nombre accesible, los lectores de pantalla lo leerán en voz alta como \"botón\", por lo que resultan inservibles para los usuarios que necesitan usar lectores de pantalla para navegar. [Más información](https://dequeuniversity.com/rules/axe/3.1/button-name?application=lighthouse)"
+  },
+  "lighthouse-core/audits/accessibility/button-name.js | failureTitle": {
+    "message": "Los botones no tienen nombres accesibles"
+  },
+  "lighthouse-core/audits/accessibility/button-name.js | title": {
+    "message": "Los botones tienen nombres accesibles"
+  },
+  "lighthouse-core/audits/accessibility/bypass.js | description": {
+    "message": "Incluir maneras de omitir el contenido repetitivo permite a los usuarios navegar por la página de forma más eficaz. [Más información](https://dequeuniversity.com/rules/axe/3.1/bypass?application=lighthouse)"
+  },
+  "lighthouse-core/audits/accessibility/bypass.js | failureTitle": {
+    "message": "La página no contiene ningún título, vínculo de omisión ni región de punto de referencia"
+  },
+  "lighthouse-core/audits/accessibility/bypass.js | title": {
+    "message": "La página contiene un título, un vínculo de omisión o una región de punto de referencia"
+  },
+  "lighthouse-core/audits/accessibility/color-contrast.js | description": {
+    "message": "Los textos con poco contraste resultan difíciles o imposibles de leer para muchos usuarios. [Más información](https://dequeuniversity.com/rules/axe/3.1/color-contrast?application=lighthouse)"
+  },
+  "lighthouse-core/audits/accessibility/color-contrast.js | failureTitle": {
+    "message": "Los colores de fondo y de primer plano no tienen una relación de contraste adecuada."
+  },
+  "lighthouse-core/audits/accessibility/color-contrast.js | title": {
+    "message": "Los colores de fondo y de primer plano tienen una relación de contraste adecuada"
+  },
+  "lighthouse-core/audits/accessibility/definition-list.js | description": {
+    "message": "Si las listas de definiciones no están bien marcadas, es posible que los lectores de pantalla las interpreten de forma confusa o imprecisa. [Más información](https://dequeuniversity.com/rules/axe/3.1/definition-list?application=lighthouse)"
+  },
+  "lighthouse-core/audits/accessibility/definition-list.js | failureTitle": {
+    "message": "Los elementos \"<dl>\" no contienen únicamente grupos de \"<dt>\" y \"<dd>\" o elementos \"<script>\" o \"<template>\" ordenados correctamente."
+  },
+  "lighthouse-core/audits/accessibility/definition-list.js | title": {
+    "message": "Los elementos \"<dl>\" solo contienen grupos de \"<dt>\" y \"<dd>\" ordenados correctamente, o elementos \"<script>\" o \"<template>\"."
+  },
+  "lighthouse-core/audits/accessibility/dlitem.js | description": {
+    "message": "Los elementos de la lista de definiciones (\"<dt>\" y \"<dd>\") deben estar incluidos en un elemento \"<dl>\" principal para asegurarte de que los lectores de pantalla puedan leerlos en voz alta correctamente. [Más información](https://dequeuniversity.com/rules/axe/3.1/dlitem?application=lighthouse)"
+  },
+  "lighthouse-core/audits/accessibility/dlitem.js | failureTitle": {
+    "message": "Los elementos de la lista de definiciones no están incluidos en elementos \"<dl>\""
+  },
+  "lighthouse-core/audits/accessibility/dlitem.js | title": {
+    "message": "Los elementos de la lista de definiciones se incluyen en los elementos \"<dl>\""
+  },
+  "lighthouse-core/audits/accessibility/document-title.js | description": {
+    "message": "Con el título, los usuarios de lectores de pantalla obtienen una descripción general de la página. Los usuarios de motores de búsqueda lo utilizan para determinar si una página es relevante para su búsqueda. [Más información](https://developers.google.com/web/tools/lighthouse/audits/title)"
+  },
+  "lighthouse-core/audits/accessibility/document-title.js | failureTitle": {
+    "message": "El documento no tiene ningún elemento \"<title>\""
+  },
+  "lighthouse-core/audits/accessibility/document-title.js | title": {
+    "message": "El documento tiene un elemento \"<title>\""
+  },
+  "lighthouse-core/audits/accessibility/duplicate-id.js | description": {
+    "message": "El valor de los atributos id debe ser único para evitar que las tecnologías de asistencia omitan otras instancias. [Más información](https://dequeuniversity.com/rules/axe/3.1/duplicate-id?application=lighthouse)"
+  },
+  "lighthouse-core/audits/accessibility/duplicate-id.js | failureTitle": {
+    "message": "Los atributos \"[id]\" de la página no son únicos"
+  },
+  "lighthouse-core/audits/accessibility/duplicate-id.js | title": {
+    "message": "Los atributos \"[id]\" de la página son únicos"
+  },
+  "lighthouse-core/audits/accessibility/frame-title.js | description": {
+    "message": "Los usuarios de lectores de pantalla necesitan que los marcos tengan títulos para que se describa su contenido. [Más información](https://dequeuniversity.com/rules/axe/3.1/frame-title?application=lighthouse)"
+  },
+  "lighthouse-core/audits/accessibility/frame-title.js | failureTitle": {
+    "message": "Los elementos \"<frame>\" o \"<iframe>\" no tienen título"
+  },
+  "lighthouse-core/audits/accessibility/frame-title.js | title": {
+    "message": "Los elementos \"<frame>\" o \"<iframe>\" tienen título"
+  },
+  "lighthouse-core/audits/accessibility/html-has-lang.js | description": {
+    "message": "Si no se especifica ningún atributo de idioma para una página, los lectores de pantalla asumirán que la página tiene el idioma predeterminado que el usuario eligió al configurar el lector de pantalla. Si el idioma de la página es diferente del predeterminado, es posible que el lector de pantalla no lea bien el texto de la página. [Más información](https://dequeuniversity.com/rules/axe/3.1/html-has-lang?application=lighthouse)"
+  },
+  "lighthouse-core/audits/accessibility/html-has-lang.js | failureTitle": {
+    "message": "El elemento \"<html>\" no contiene ningún atributo \"[lang]\""
+  },
+  "lighthouse-core/audits/accessibility/html-has-lang.js | title": {
+    "message": "El elemento \"<html>\" tiene un atributo \"[lang]\""
+  },
+  "lighthouse-core/audits/accessibility/html-lang-valid.js | description": {
+    "message": "Especificar un [idioma BCP 47] valido (https://www.w3.org/International/questions/qa-choosing-language-tags#question) permite a los lectores de pantalla leer el texto en voz alta correctamente. [Más información](https://dequeuniversity.com/rules/axe/3.1/valid-lang?application=lighthouse)"
+  },
+  "lighthouse-core/audits/accessibility/html-lang-valid.js | failureTitle": {
+    "message": "El elemento \"<html>\" no tiene un valor válido para el atributo \"[lang]\"."
+  },
+  "lighthouse-core/audits/accessibility/html-lang-valid.js | title": {
+    "message": "El elemento \"<html>\" tiene un valor válido para el atributo \"[lang]\""
+  },
+  "lighthouse-core/audits/accessibility/image-alt.js | description": {
+    "message": "El texto de los elementos informativos debe ser corto y descriptivo. Los elementos decorativos se pueden omitir usando un atributo alt vacío. [Más información](https://dequeuniversity.com/rules/axe/3.1/image-alt?application=lighthouse)"
+  },
+  "lighthouse-core/audits/accessibility/image-alt.js | failureTitle": {
+    "message": "Los elementos de imagen no tienen ningún atributo \"[alt]\""
+  },
+  "lighthouse-core/audits/accessibility/image-alt.js | title": {
+    "message": "Los elementos de imagen tienen atributos \"[alt]\""
+  },
+  "lighthouse-core/audits/accessibility/input-image-alt.js | description": {
+    "message": "Cuando se usa una imagen como botón \"<input>\", resulta útil proporcionar un texto alternativo para permitir que los usuarios de lectores de pantalla entiendan cuál es la función del botón. [Más información](https://dequeuniversity.com/rules/axe/3.1/input-image-alt?application=lighthouse)"
+  },
+  "lighthouse-core/audits/accessibility/input-image-alt.js | failureTitle": {
+    "message": "Los elementos \"<input type=\"image\">\" no tienen texto \"[alt]\""
+  },
+  "lighthouse-core/audits/accessibility/input-image-alt.js | title": {
+    "message": "Los elementos \"<input type=\"image\">\" no contienen texto \"[alt]\""
+  },
+  "lighthouse-core/audits/accessibility/label.js | description": {
+    "message": "Las etiquetas facilitan que las tecnologías de asistencia, como los lectores de pantalla, puedan leer los controles de los formularios de forma correcta. [Más información](https://dequeuniversity.com/rules/axe/3.1/label?application=lighthouse)"
+  },
+  "lighthouse-core/audits/accessibility/label.js | failureTitle": {
+    "message": "Los elementos de formulario no tienen ninguna etiqueta asociada"
+  },
+  "lighthouse-core/audits/accessibility/label.js | title": {
+    "message": "Los elementos de formulario tienen etiquetas asociadas"
+  },
+  "lighthouse-core/audits/accessibility/layout-table.js | description": {
+    "message": "Una tabla que se utilice para diseño no debe incluir elementos de datos (como ordinales), leyendas ni atributos de resumen, dado que pueden confundir a los usuarios de lectores de pantalla. [Más información](https://dequeuniversity.com/rules/axe/3.1/layout-table?application=lighthouse)"
+  },
+  "lighthouse-core/audits/accessibility/layout-table.js | failureTitle": {
+    "message": "Los elementos \"<table>\" de presentación no evitan el uso de \"<th>\", \"<caption>\" ni el atributo \"[summary]\"."
+  },
+  "lighthouse-core/audits/accessibility/layout-table.js | title": {
+    "message": "Los elementos \"<table>\" de presentación no utilizan elementos \"<th>\" o \"<caption>\" ni el atributo \"[summary]\"."
+  },
+  "lighthouse-core/audits/accessibility/link-name.js | description": {
+    "message": "Usar textos de vínculo (y textos alternativos para las imágenes, si estas se usan como vínculos) que sean reconocibles, únicos y que se puedan seleccionar mejora la experiencia de navegación de los usuarios de lectores de pantalla. [Más información](https://dequeuniversity.com/rules/axe/3.1/link-name?application=lighthouse)"
+  },
+  "lighthouse-core/audits/accessibility/link-name.js | failureTitle": {
+    "message": "Los vínculos no tienen nombres reconocibles"
+  },
+  "lighthouse-core/audits/accessibility/link-name.js | title": {
+    "message": "Los vínculos tienen nombres reconocibles"
+  },
+  "lighthouse-core/audits/accessibility/list.js | description": {
+    "message": "Los lectores de pantalla leen las listas en voz alta de una forma concreta. Se recomienda utilizar una estructura de listas adecuada para que los lectores de pantalla puedan leer las listas de forma correcta. [Más información](https://dequeuniversity.com/rules/axe/3.1/list?application=lighthouse)"
+  },
+  "lighthouse-core/audits/accessibility/list.js | failureTitle": {
+    "message": "Las listas no contienen únicamente elementos \"<li>\" y elementos que admiten scripts (\"<script>\" y \"<template>\")."
+  },
+  "lighthouse-core/audits/accessibility/list.js | title": {
+    "message": "Las listas solo contienen elementos \"<li>\" y elementos que admiten scripts (\"<script>\" y \"<template>\")."
+  },
+  "lighthouse-core/audits/accessibility/listitem.js | description": {
+    "message": "Los lectores de pantalla requieren que los elementos de lista (\"<li>\") estén incluidos dentro de un elemento \"<ul>\" o \"<ol>\" principal para poder leerlos en voz alta correctamente. [Más información](https://dequeuniversity.com/rules/axe/3.1/listitem?application=lighthouse)"
+  },
+  "lighthouse-core/audits/accessibility/listitem.js | failureTitle": {
+    "message": "Los elementos de lista (\"<li>\") no se encuentran dentro de los elementos principales \"<ul>\" o \"<ol>\"."
+  },
+  "lighthouse-core/audits/accessibility/listitem.js | title": {
+    "message": "Los objetos de lista (\"<li>\") están incluidos dentro de los elementos principales \"<ul>\" o \"<ol>\""
+  },
+  "lighthouse-core/audits/accessibility/meta-refresh.js | description": {
+    "message": "Los usuarios no esperan que una página se actualice automáticamente. Al hacerlo, se moverá el enfoque a la parte superior de la página. Esta acción puede generar una experiencia frustrante o confusa. [Más información](https://dequeuniversity.com/rules/axe/3.1/meta-refresh?application=lighthouse)"
+  },
+  "lighthouse-core/audits/accessibility/meta-refresh.js | failureTitle": {
+    "message": "El documento utiliza \"<meta http-equiv=\"refresh\">\""
+  },
+  "lighthouse-core/audits/accessibility/meta-refresh.js | title": {
+    "message": "El documento no utiliza \"<meta http-equiv=\"refresh\">\""
+  },
+  "lighthouse-core/audits/accessibility/meta-viewport.js | description": {
+    "message": "Desactivar el zoom provoca problemas para los usuarios con visión reducida, ya que necesitan ampliar la pantalla para poder ver correctamente el contenido de las páginas web. [Más información](https://dequeuniversity.com/rules/axe/3.1/meta-viewport?application=lighthouse)"
+  },
+  "lighthouse-core/audits/accessibility/meta-viewport.js | failureTitle": {
+    "message": "\"[user-scalable=\"no\"]\" se utiliza en el elemento \"<meta name=\"viewport\">\" o el atributo \"[maximum-scale]\" tiene un valor inferior a 5."
+  },
+  "lighthouse-core/audits/accessibility/meta-viewport.js | title": {
+    "message": "\"[user-scalable=\"no\"]\" no se utiliza en el elemento \"<meta name=\"viewport\">\" y el atributo \"[maximum-scale]\" no tiene un valor inferior a 5."
+  },
+  "lighthouse-core/audits/accessibility/object-alt.js | description": {
+    "message": "Los lectores de pantalla no pueden traducir contenido que no sea texto. Al añadir texto alternativo a los elementos \"<object>\", los lectores de pantalla podrán transmitir su significado a los usuarios. [Más información](https://dequeuniversity.com/rules/axe/3.1/object-alt?application=lighthouse)"
+  },
+  "lighthouse-core/audits/accessibility/object-alt.js | failureTitle": {
+    "message": "Los elementos \"<object>\" no tienen texto \"[alt]\""
+  },
+  "lighthouse-core/audits/accessibility/object-alt.js | title": {
+    "message": "Los elementos \"<object>\" tienen texto \"[alt]\""
+  },
+  "lighthouse-core/audits/accessibility/tabindex.js | description": {
+    "message": "Si el valor es superior a 0, significa que el orden de navegación es explícito. Aunque técnicamente es válido, esto suele producir experiencias frustrantes para los usuarios que necesitan usar tecnologías de asistencia. [Más información](https://dequeuniversity.com/rules/axe/3.1/tabindex?application=lighthouse)"
+  },
+  "lighthouse-core/audits/accessibility/tabindex.js | failureTitle": {
+    "message": "Algunos elementos tienen un valor de \"[tabindex]\" superior a 0"
+  },
+  "lighthouse-core/audits/accessibility/tabindex.js | title": {
+    "message": "No hay ningún elemento con un valor de \"[tabindex]\" superior a 0"
+  },
+  "lighthouse-core/audits/accessibility/td-headers-attr.js | description": {
+    "message": "Los lectores de pantalla incluyen funciones para facilitar la navegación por las tablas. Debes asegurarte de que las celdas \"<td>\" que usan el atributo \"[headers]\" solo hacen referencia a otras celdas de la misma tabla, a fin de mejorar la experiencia de los usuarios de lectores de pantalla. [Más información](https://dequeuniversity.com/rules/axe/3.1/td-headers-attr?application=lighthouse)"
+  },
+  "lighthouse-core/audits/accessibility/td-headers-attr.js | failureTitle": {
+    "message": "Las celdas de los elementos \"<table>\" que usan el atributo \"[headers]\" hacen referencia a otras celdas de esa misma tabla."
+  },
+  "lighthouse-core/audits/accessibility/td-headers-attr.js | title": {
+    "message": "Las celdas de los elementos \"<table>\" que usan el atributo \"[headers]\" solo hacen referencia a otras celdas de esa misma tabla."
+  },
+  "lighthouse-core/audits/accessibility/th-has-data-cells.js | description": {
+    "message": "Los lectores de pantalla incluyen funciones para facilitar la navegación por las tablas. Asegurarse de que los encabezados de las tablas siempre hagan referencia a un conjunto específico de celdas puede mejora la experiencia de los usuarios de lectores de pantalla. [Más información](https://dequeuniversity.com/rules/axe/3.1/th-has-data-cells?application=lighthouse)"
+  },
+  "lighthouse-core/audits/accessibility/th-has-data-cells.js | failureTitle": {
+    "message": "Los elementos \"<th>\" y los elementos con \"[role=\"columnheader\"/\"rowheader\"]\" no contienen las celdas de datos que describen."
+  },
+  "lighthouse-core/audits/accessibility/th-has-data-cells.js | title": {
+    "message": "Los elementos \"<th>\" y los elementos con \"[role=\"columnheader\"/\"rowheader\"]\" contienen las celdas de datos que describen."
+  },
+  "lighthouse-core/audits/accessibility/valid-lang.js | description": {
+    "message": "Especificar un [idioma BCP 47] válido (https://www.w3.org/International/questions/qa-choosing-language-tags#question) en los elementos ayuda a asegurar que los lectores de pantalla pronuncien correctamente las palabras del texto. [Más información](https://dequeuniversity.com/rules/axe/3.1/valid-lang?application=lighthouse)"
+  },
+  "lighthouse-core/audits/accessibility/valid-lang.js | failureTitle": {
+    "message": "Los atributos \"[lang]\" no tienen un valor válido"
+  },
+  "lighthouse-core/audits/accessibility/valid-lang.js | title": {
+    "message": "Los atributos \"[lang]\" tienen un valor válido"
+  },
+  "lighthouse-core/audits/accessibility/video-caption.js | description": {
+    "message": "Si un video tiene subtítulos, los usuarios sordos o con problemas auditivos pueden acceder a la información con más facilidad. [Más información](https://dequeuniversity.com/rules/axe/3.1/video-caption?application=lighthouse)"
+  },
+  "lighthouse-core/audits/accessibility/video-caption.js | failureTitle": {
+    "message": "Los elementos \"<video>\" no contienen ningún elemento \"<track>\" con \"[kind=\"captions\"]\"."
+  },
+  "lighthouse-core/audits/accessibility/video-caption.js | title": {
+    "message": "Los elementos \"<video>\" contienen un elemento \"<track>\" con \"[kind=\"captions\"]\""
+  },
+  "lighthouse-core/audits/accessibility/video-description.js | description": {
+    "message": "Las descripciones de audio proporcionan información relevante en videos cuyos diálogos no transmiten todo el contenido, como en el caso de las expresiones faciales y las escenas. [Más información](https://dequeuniversity.com/rules/axe/3.1/video-description?application=lighthouse)"
+  },
+  "lighthouse-core/audits/accessibility/video-description.js | failureTitle": {
+    "message": "Los elementos \"<video>\" no contienen ningún elemento \"<track>\" con \"[kind=\"description\"]\"."
+  },
+  "lighthouse-core/audits/accessibility/video-description.js | title": {
+    "message": "Los elementos \"<video>\" contienen un elemento \"<track>\" con \"[kind=\"description\"]\""
+  },
+  "lighthouse-core/audits/bootup-time.js | chromeExtensionsWarning": {
+    "message": "Las extensiones de Chrome afectaron de forma negativa al rendimiento de carga de esta página. Prueba a auditarla en modo incógnito o desde un perfil de Chrome sin extensiones."
+  },
+  "lighthouse-core/audits/bootup-time.js | columnScriptEval": {
+    "message": "Evaluación de la secuencia de comandos"
+  },
+  "lighthouse-core/audits/bootup-time.js | columnScriptParse": {
+    "message": "Análisis de la secuencia de comandos"
+  },
+  "lighthouse-core/audits/bootup-time.js | columnTotal": {
+    "message": "Tiempo de CPU total"
+  },
+  "lighthouse-core/audits/bootup-time.js | description": {
+    "message": "Te recomendamos que reduzcas el tiempo de análisis, compilación y ejecución de JS. Para ello, puedes utilizar cargas útiles de JS más pequeñas. [Más información](https://developers.google.com/web/tools/lighthouse/audits/bootup)"
+  },
+  "lighthouse-core/audits/bootup-time.js | failureTitle": {
+    "message": "Reduce el tiempo de ejecución de JavaScript"
+  },
+  "lighthouse-core/audits/bootup-time.js | title": {
+    "message": "Tiempo de ejecución de JavaScript"
+  },
+  "lighthouse-core/audits/byte-efficiency/efficient-animated-content.js | description": {
+    "message": "Los GIF de gran tamaño no son eficaces para mostrar contenido animado. En su lugar, considera utilizar formatos de video MPEG4/WebM para animaciones y formatos PNG/WebP para imágenes estáticas a fin de ahorrar bytes de la red. [Más información](https://developers.google.com/web/fundamentals/performance/optimizing-content-efficiency/replace-animated-gifs-with-video/)"
+  },
+  "lighthouse-core/audits/byte-efficiency/efficient-animated-content.js | title": {
+    "message": "Usa formatos de video para incluir contenido animado"
+  },
+  "lighthouse-core/audits/byte-efficiency/offscreen-images.js | description": {
+    "message": "Te recomendamos que uses la carga diferida con imágenes ocultas y que no aparecen en pantalla una vez que todos los recursos críticos hayan terminado de cargarse para reducir el tiempo hasta que la página es interactiva. [Más información](https://developers.google.com/web/tools/lighthouse/audits/offscreen-images)"
+  },
+  "lighthouse-core/audits/byte-efficiency/offscreen-images.js | title": {
+    "message": "Posterga la carga de imágenes que no aparecen en pantalla"
+  },
+  "lighthouse-core/audits/byte-efficiency/render-blocking-resources.js | description": {
+    "message": "Hay recursos que bloquean el primer renderizado de la página. Te recomendamos que muestres los elementos JS/CSS críticos insertados y postergues todos los JS/styles que no sean críticos. [Más información](https://developers.google.com/web/tools/lighthouse/audits/blocking-resources)"
+  },
+  "lighthouse-core/audits/byte-efficiency/render-blocking-resources.js | title": {
+    "message": "Elimina los recursos que bloqueen el renderizado"
+  },
+  "lighthouse-core/audits/byte-efficiency/total-byte-weight.js | description": {
+    "message": "Si la carga útil de la red es muy grande, los usuarios consumen más datos móviles y las páginas tardan más en cargarse. [Más información](https://developers.google.com/web/tools/lighthouse/audits/network-payloads)"
+  },
+  "lighthouse-core/audits/byte-efficiency/total-byte-weight.js | displayValue": {
+    "message": "Tamaño total: {totalBytes, number, bytes} KB"
+  },
+  "lighthouse-core/audits/byte-efficiency/total-byte-weight.js | failureTitle": {
+    "message": "Evita cargas útiles de red de gran tamaño"
+  },
+  "lighthouse-core/audits/byte-efficiency/total-byte-weight.js | title": {
+    "message": "Evita cargas útiles de red de gran tamaño"
+  },
+  "lighthouse-core/audits/byte-efficiency/unminified-css.js | description": {
+    "message": "Si reduces los archivos CSS, se puede reducir el tamaño de la carga útil de la red. [Más información](https://developers.google.com/web/tools/lighthouse/audits/minify-css)"
+  },
+  "lighthouse-core/audits/byte-efficiency/unminified-css.js | title": {
+    "message": "Reduce el uso de CSS"
+  },
+  "lighthouse-core/audits/byte-efficiency/unminified-javascript.js | description": {
+    "message": "Si reduces los archivos JavaScript, se puede reducir el tamaño de la carga útil y el tiempo de análisis de la secuencia de comandos. [Más información](https://developers.google.com/speed/docs/insights/MinifyResources)"
+  },
+  "lighthouse-core/audits/byte-efficiency/unminified-javascript.js | title": {
+    "message": "Reducir el uso de JavaScript"
+  },
+  "lighthouse-core/audits/byte-efficiency/unused-css-rules.js | description": {
+    "message": "Elimina las reglas inactivas de las hojas de estilo y retrasa la carga de las CSS que no se utilicen para el contenido de la mitad superior de la página. Así, se reducirán los bytes consumidos innecesariamente por la actividad de red. [Más información](https://developers.google.com/web/tools/lighthouse/audits/unused-css)"
+  },
+  "lighthouse-core/audits/byte-efficiency/unused-css-rules.js | title": {
+    "message": "Quita los recursos CSS que no se usen"
+  },
+  "lighthouse-core/audits/byte-efficiency/unused-javascript.js | description": {
+    "message": "Quita el contenido JavaScript sin usar para reducir el número de bytes que consume la actividad de red."
+  },
+  "lighthouse-core/audits/byte-efficiency/unused-javascript.js | title": {
+    "message": "Quita el código JavaScript sin usar"
+  },
+  "lighthouse-core/audits/byte-efficiency/uses-long-cache-ttl.js | description": {
+    "message": "Una duración en caché más larga puede aumentar el número de visitas repetidas a tu página. [Más información](https://developers.google.com/web/tools/lighthouse/audits/cache-policy)"
+  },
+  "lighthouse-core/audits/byte-efficiency/uses-long-cache-ttl.js | displayValue": {
+    "message": "{itemCount,plural, =1{Se encontró 1 recurso}other{Se encontraron # recursos}}"
+  },
+  "lighthouse-core/audits/byte-efficiency/uses-long-cache-ttl.js | failureTitle": {
+    "message": "Publica elementos estáticos con una política de caché eficaz"
+  },
+  "lighthouse-core/audits/byte-efficiency/uses-long-cache-ttl.js | title": {
+    "message": "Usa una política de caché eficaz en recursos estáticos"
+  },
+  "lighthouse-core/audits/byte-efficiency/uses-optimized-images.js | description": {
+    "message": "Las imágenes optimizadas se cargan más rápido y consumen menos datos móviles. [Más información](https://developers.google.com/web/tools/lighthouse/audits/optimize-images)"
+  },
+  "lighthouse-core/audits/byte-efficiency/uses-optimized-images.js | title": {
+    "message": "Codifica las imágenes de forma eficaz"
+  },
+  "lighthouse-core/audits/byte-efficiency/uses-responsive-images.js | description": {
+    "message": "Muestra imágenes con un tamaño adecuado para ahorrar datos móviles y mejorar el tiempo de carga. [Más información](https://developers.google.com/web/tools/lighthouse/audits/oversized-images)"
+  },
+  "lighthouse-core/audits/byte-efficiency/uses-responsive-images.js | title": {
+    "message": "Usa un tamaño adecuado para las imágenes"
+  },
+  "lighthouse-core/audits/byte-efficiency/uses-text-compression.js | description": {
+    "message": "Los recursos basados en texto se deberían publicar comprimidos (gzip, deflate o brotli) para minimizar el total de bytes de la red. [Más información](https://developers.google.com/web/tools/lighthouse/audits/text-compression)"
+  },
+  "lighthouse-core/audits/byte-efficiency/uses-text-compression.js | title": {
+    "message": "Habilita la compresión de texto"
+  },
+  "lighthouse-core/audits/byte-efficiency/uses-webp-images.js | description": {
+    "message": "Los formatos como JPEG 2000, JPEG XR y WebP comprimen mejor las imágenes que los formatos PNG o JPEG, lo que hace que se descarguen más rápido y consuman menos datos. [Más información](https://developers.google.com/web/tools/lighthouse/audits/webp)"
+  },
+  "lighthouse-core/audits/byte-efficiency/uses-webp-images.js | title": {
+    "message": "Publica imágenes con formatos de próxima generación"
+  },
+  "lighthouse-core/audits/critical-request-chains.js | description": {
+    "message": "Las cadenas de solicitud crítica que se muestran a continuación indican qué recursos son de alta prioridad. Te recomendamos que reduzcas la longitud de las cadenas, disminuyas el tamaño de los recursos o postergues la descarga de recursos innecesarios para mejorar la carga de la página. [Más información](https://developers.google.com/web/tools/lighthouse/audits/critical-request-chains)"
+  },
+  "lighthouse-core/audits/critical-request-chains.js | displayValue": {
+    "message": "{itemCount,plural, =1{Se encontró 1 cadena}other{Se encontraron # cadenas}}"
+  },
+  "lighthouse-core/audits/critical-request-chains.js | title": {
+    "message": "Minimiza la profundidad de las solicitudes críticas"
+  },
+  "lighthouse-core/audits/dobetterweb/dom-size.js | columnElement": {
+    "message": "Elemento"
+  },
+  "lighthouse-core/audits/dobetterweb/dom-size.js | columnStatistic": {
+    "message": "Estadística"
+  },
+  "lighthouse-core/audits/dobetterweb/dom-size.js | columnValue": {
+    "message": "Valor"
+  },
+  "lighthouse-core/audits/dobetterweb/dom-size.js | description": {
+    "message": "Los desarrolladores de navegadores recomiendan que las páginas contengan menos de 1500 elementos de DOM. Lo ideal es conseguir una profundidad de árbol inferior a 32 elementos y a 60 elementos secundarios por cada elemento principal. Los DOM de gran tamaño aumentan el uso de la memoria, hacen que los [cálculos de estilo](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations) duren más y generan costosos [reinicios del flujo del diseño](https://developers.google.com/speed/articles/reflow). [Más información](https://developers.google.com/web/tools/lighthouse/audits/dom-size)"
+  },
+  "lighthouse-core/audits/dobetterweb/dom-size.js | displayValue": {
+    "message": "{itemCount,plural, =1{1 elemento}other{# elementos}}"
+  },
+  "lighthouse-core/audits/dobetterweb/dom-size.js | failureTitle": {
+    "message": "Evita un tamaño excesivo de DOM"
+  },
+  "lighthouse-core/audits/dobetterweb/dom-size.js | statisticDOMDepth": {
+    "message": "Profundidad máxima de DOM"
+  },
+  "lighthouse-core/audits/dobetterweb/dom-size.js | statisticDOMElements": {
+    "message": "Total de elementos DOM"
+  },
+  "lighthouse-core/audits/dobetterweb/dom-size.js | statisticDOMWidth": {
+    "message": "Número máximo de elementos secundarios"
+  },
+  "lighthouse-core/audits/dobetterweb/dom-size.js | title": {
+    "message": "Evita un tamaño excesivo de DOM"
+  },
+  "lighthouse-core/audits/font-display.js | description": {
+    "message": "Utiliza la función de CSS font-display para que los usuarios vean el texto mientras se carga la fuente web. [Más información](https://developers.google.com/web/updates/2016/02/font-display)"
+  },
+  "lighthouse-core/audits/font-display.js | failureTitle": {
+    "message": "Asegúrate de que el texto permanece visible mientras se carga la fuente web"
+  },
+  "lighthouse-core/audits/font-display.js | title": {
+    "message": "Todo el texto permanece visible mientras se carga la fuente web"
+  },
+  "lighthouse-core/audits/load-fast-enough-for-pwa.js | description": {
+    "message": "Si las páginas se cargan rápidamente en las redes móviles, el usuario disfrutará de una buena experiencia. [Más información](https://developers.google.com/web/tools/lighthouse/audits/fast-3g)"
+  },
+  "lighthouse-core/audits/load-fast-enough-for-pwa.js | displayValueText": {
+    "message": "Interactiva a los {timeInMs, number, seconds} s"
+  },
+  "lighthouse-core/audits/load-fast-enough-for-pwa.js | displayValueTextWithOverride": {
+    "message": "Interactiva en una red móvil simulada a los {timeInMs, number, seconds} s"
+  },
+  "lighthouse-core/audits/load-fast-enough-for-pwa.js | failureTitle": {
+    "message": "La página no se carga suficientemente rápido en las redes móviles"
+  },
+  "lighthouse-core/audits/load-fast-enough-for-pwa.js | title": {
+    "message": "La carga de la página es lo suficientemente rápida en redes móviles"
+  },
+  "lighthouse-core/audits/mainthread-work-breakdown.js | columnCategory": {
+    "message": "Categoría"
+  },
+  "lighthouse-core/audits/mainthread-work-breakdown.js | description": {
+    "message": "Te recomendamos que reduzcas el tiempo de análisis, compilación y ejecución de JS. Para ello, puedes utilizar cargas útiles de JS más pequeñas."
+  },
+  "lighthouse-core/audits/mainthread-work-breakdown.js | failureTitle": {
+    "message": "Minimiza el trabajo del hilo principal"
+  },
+  "lighthouse-core/audits/mainthread-work-breakdown.js | title": {
+    "message": "Minimiza el trabajo del hilo principal"
+  },
+  "lighthouse-core/audits/metrics/estimated-input-latency.js | description": {
+    "message": "La latencia de entrada estimada es el tiempo, en milisegundos, que tarda tu app en responder a las acciones de los usuarios durante el periodo de 5 s más activo de carga de la página. Si la latencia es superior a 50 ms, es posible que los usuarios piensen que tu app es lenta. [Más información](https://developers.google.com/web/tools/lighthouse/audits/estimated-input-latency)"
+  },
+  "lighthouse-core/audits/metrics/estimated-input-latency.js | title": {
+    "message": "Latencia de entrada estimada"
+  },
+  "lighthouse-core/audits/metrics/first-contentful-paint.js | description": {
+    "message": "El Primer procesamiento de imagen con contenido indica el momento en el que se procesa el primer texto o imagen. [Más información](https://developers.google.com/web/tools/lighthouse/audits/first-contentful-paint)"
+  },
+  "lighthouse-core/audits/metrics/first-contentful-paint.js | title": {
+    "message": "Primer procesamiento de imagen con contenido"
+  },
+  "lighthouse-core/audits/metrics/first-cpu-idle.js | description": {
+    "message": "El primer tiempo inactivo de la CPU indica la primera vez que el hilo principal de la página está lo suficientemente inactivo para recibir acciones del usuario. [Más información](https://developers.google.com/web/tools/lighthouse/audits/first-interactive)"
+  },
+  "lighthouse-core/audits/metrics/first-cpu-idle.js | title": {
+    "message": "Primer tiempo inactivo de la CPU"
+  },
+  "lighthouse-core/audits/metrics/first-meaningful-paint.js | description": {
+    "message": "La primera puntura significativa mide el momento en que se muestra el contenido principal de la página. [Más información](https://developers.google.com/web/tools/lighthouse/audits/first-meaningful-paint)"
+  },
+  "lighthouse-core/audits/metrics/first-meaningful-paint.js | title": {
+    "message": "Primera pintura significativa"
+  },
+  "lighthouse-core/audits/metrics/interactive.js | description": {
+    "message": "El tiempo de carga es el tiempo que tarda una página en ser totalmente interactiva. [Más información](https://developers.google.com/web/tools/lighthouse/audits/consistently-interactive)"
+  },
+  "lighthouse-core/audits/metrics/interactive.js | title": {
+    "message": "Tiempo de carga"
+  },
+  "lighthouse-core/audits/metrics/max-potential-fid.js | description": {
+    "message": "El posible retraso de primera entrada que podrían experimentar los usuarios es la duración (en milisegundos) de la tarea más larga."
+  },
+  "lighthouse-core/audits/metrics/max-potential-fid.js | title": {
+    "message": "FID potencial máxima"
+  },
+  "lighthouse-core/audits/metrics/speed-index.js | description": {
+    "message": "El índice de velocidad indica la rapidez con la que se puede ver el contenido de una página. [Más información](https://developers.google.com/web/tools/lighthouse/audits/speed-index)"
+  },
+  "lighthouse-core/audits/metrics/speed-index.js | title": {
+    "message": "Índice de velocidad"
+  },
+  "lighthouse-core/audits/network-rtt.js | description": {
+    "message": "Los tiempos de ida y vuelta (RTT) de la red afectan mucho al rendimiento. Un RTT alto hasta un origen indica que usar servidores más cercanos al usuario podría mejorar el rendimiento. [Más información](https://hpbn.co/primer-on-latency-and-bandwidth/)"
+  },
+  "lighthouse-core/audits/network-rtt.js | title": {
+    "message": "Tiempos de ida y vuelta de la red"
+  },
+  "lighthouse-core/audits/network-server-latency.js | description": {
+    "message": "Las latencias del servidor pueden afectar el rendimiento de la Web. Una latencia del servidor alta en un origen indica que el servidor está sobrecargado o que su rendimiento de backend es bajo. [Más información](https://hpbn.co/primer-on-web-performance/#analyzing-the-resource-waterfall)"
+  },
+  "lighthouse-core/audits/network-server-latency.js | title": {
+    "message": "Latencias de backend del servidor"
+  },
+  "lighthouse-core/audits/redirects.js | description": {
+    "message": "Las redirecciones provocan retrasos adicionales antes de que la página se pueda cargar. [Más información](https://developers.google.com/web/tools/lighthouse/audits/redirects)"
+  },
+  "lighthouse-core/audits/redirects.js | title": {
+    "message": "Evita que haya varias redirecciones de página"
+  },
+  "lighthouse-core/audits/seo/canonical.js | description": {
+    "message": "Los vínculos canónicos sugieren qué URL mostrar en los resultados de la búsqueda. [Más información](https://developers.google.com/web/tools/lighthouse/audits/canonical)"
+  },
+  "lighthouse-core/audits/seo/canonical.js | explanationConflict": {
+    "message": "Múltiples URL en conflicto ({urlList})"
+  },
+  "lighthouse-core/audits/seo/canonical.js | explanationDifferentDomain": {
+    "message": "Apunta a un dominio diferente ({url})"
+  },
+  "lighthouse-core/audits/seo/canonical.js | explanationInvalid": {
+    "message": "URL no válida ({url})"
+  },
+  "lighthouse-core/audits/seo/canonical.js | explanationPointsElsewhere": {
+    "message": "Apunta a otra ubicación \"hreflang\" ({url})"
+  },
+  "lighthouse-core/audits/seo/canonical.js | explanationRelative": {
+    "message": "URL relativa ({url})"
+  },
+  "lighthouse-core/audits/seo/canonical.js | explanationRoot": {
+    "message": "Apunta a la URL raíz del dominio (la página principal), en lugar de a una página de contenido equivalente"
+  },
+  "lighthouse-core/audits/seo/canonical.js | failureTitle": {
+    "message": "El documento no tiene un vínculo \"rel=canonical\" válido"
+  },
+  "lighthouse-core/audits/seo/canonical.js | title": {
+    "message": "El documento tiene un enlace \"rel=canonical\" válido"
+  },
+  "lighthouse-core/audits/seo/font-size.js | description": {
+    "message": "Las fuentes con un tamaño inferior a 12 px son demasiado pequeñas y poco legibles, lo que obliga a los visitantes que acceden con dispositivos móviles a pellizcar la pantalla para ampliarla y poder leer el texto. Intenta que más del 60% del texto de la página tenga un tamaño igual o superior a 12 px. [Más información](https://developers.google.com/web/tools/lighthouse/audits/font-sizes)"
+  },
+  "lighthouse-core/audits/seo/font-size.js | displayValue": {
+    "message": "{decimalProportion, number, extendedPercent} del texto es legible"
+  },
+  "lighthouse-core/audits/seo/font-size.js | explanation": {
+    "message": "El {decimalProportion, number, extendedPercent} del texto es demasiado pequeño."
+  },
+  "lighthouse-core/audits/seo/font-size.js | explanationViewport": {
+    "message": "El texto es ilegible porque no hay metaetiquetas de de la vista del puerto optimizadas para pantallas de dispositivos móviles."
+  },
+  "lighthouse-core/audits/seo/font-size.js | explanationWithDisclaimer": {
+    "message": "El {decimalProportion, number, extendedPercent} del texto es demasiado pequeño (según la muestra {decimalProportionVisited, number, extendedPercent})."
+  },
+  "lighthouse-core/audits/seo/font-size.js | failureTitle": {
+    "message": "El documento no usa tamaños de fuente legibles"
+  },
+  "lighthouse-core/audits/seo/font-size.js | title": {
+    "message": "El documento usa tamaños de fuente legibles"
+  },
+  "lighthouse-core/audits/seo/hreflang.js | description": {
+    "message": "Los vínculos de hreflang indican a los motores de búsqueda qué versiones de las páginas deben incluir en los resultados de búsqueda de una región o un idioma determinados. [Más información](https://developers.google.com/web/tools/lighthouse/audits/hreflang)"
+  },
+  "lighthouse-core/audits/seo/hreflang.js | failureTitle": {
+    "message": "El atributo \"hreflang\" del documento no es válido"
+  },
+  "lighthouse-core/audits/seo/hreflang.js | title": {
+    "message": "El atributo \"hreflang\" del documento es válido"
+  },
+  "lighthouse-core/audits/seo/http-status-code.js | description": {
+    "message": "Es posible que las páginas con códigos de estado HTTP incorrectos no estén bien indexadas. [Más información](https://developers.google.com/web/tools/lighthouse/audits/successful-http-code)"
+  },
+  "lighthouse-core/audits/seo/http-status-code.js | failureTitle": {
+    "message": "El código de estado HTTP de la página no es válido"
+  },
+  "lighthouse-core/audits/seo/http-status-code.js | title": {
+    "message": "El código de estado HTTP de la página es válido"
+  },
+  "lighthouse-core/audits/seo/is-crawlable.js | description": {
+    "message": "Los motores de búsqueda no pueden incluir tus páginas en los resultados de búsqueda si no tienen permiso para rastrearlas. [Más información](https://developers.google.com/web/tools/lighthouse/audits/indexing)"
+  },
+  "lighthouse-core/audits/seo/is-crawlable.js | failureTitle": {
+    "message": "Se bloqueó la indexación de la página"
+  },
+  "lighthouse-core/audits/seo/is-crawlable.js | title": {
+    "message": "No se bloqueó la indexación de la página"
+  },
+  "lighthouse-core/audits/seo/link-text.js | description": {
+    "message": "El texto descriptivo de los vínculos ayuda a los motores de búsqueda a entender tu contenido. [Más información](https://developers.google.com/web/tools/lighthouse/audits/descriptive-link-text)"
+  },
+  "lighthouse-core/audits/seo/link-text.js | displayValue": {
+    "message": "{itemCount,plural, =1{Se encontró 1 vínculo}other{Se encontraron # vínculos}}"
+  },
+  "lighthouse-core/audits/seo/link-text.js | failureTitle": {
+    "message": "Los vínculos no tienen texto descriptivo"
+  },
+  "lighthouse-core/audits/seo/link-text.js | title": {
+    "message": "Los vínculos tienen texto descriptivo"
+  },
+  "lighthouse-core/audits/seo/manual/structured-data.js | description": {
+    "message": "Ejecuta la [Herramienta de pruebas de datos estructurados](https://search.google.com/structured-data/testing-tool/) y la herramienta [Structured Data Linter](http://linter.structured-data.org/) para validar los datos estructurados. [Más información](https://developers.google.com/search/docs/guides/mark-up-content)"
+  },
+  "lighthouse-core/audits/seo/manual/structured-data.js | title": {
+    "message": "Los datos estructurados son válidos"
+  },
+  "lighthouse-core/audits/seo/meta-description.js | description": {
+    "message": "Se pueden incluir metadescripciones en los resultados de búsqueda para resumir brevemente el contenido de la página. [Más información](https://developers.google.com/web/tools/lighthouse/audits/description)"
+  },
+  "lighthouse-core/audits/seo/meta-description.js | explanation": {
+    "message": "El texto de la descripción está vacío."
+  },
+  "lighthouse-core/audits/seo/meta-description.js | failureTitle": {
+    "message": "El documento no tiene una metadescripción"
+  },
+  "lighthouse-core/audits/seo/meta-description.js | title": {
+    "message": "El documento tiene una metadescripción"
+  },
+  "lighthouse-core/audits/seo/plugins.js | description": {
+    "message": "Los motores de búsqueda no pueden indexar el contenido de los complementos, y muchos dispositivos limitan el uso de complementos o no los admiten. [Más información](https://developers.google.com/web/tools/lighthouse/audits/plugins)"
+  },
+  "lighthouse-core/audits/seo/plugins.js | failureTitle": {
+    "message": "El documento usa complementos"
+  },
+  "lighthouse-core/audits/seo/plugins.js | title": {
+    "message": "Los documentos evitan el uso de complementos"
+  },
+  "lighthouse-core/audits/seo/robots-txt.js | description": {
+    "message": "Si el formato del archivo robots.txt no es correcto, es posible que los rastreadores no puedan interpretar cómo quieres que se rastree o indexe tu sitio web."
+  },
+  "lighthouse-core/audits/seo/robots-txt.js | displayValueHttpBadCode": {
+    "message": "la solicitud de robots.txt ha devuelto el siguiente estado de HTTP: {statusCode}"
+  },
+  "lighthouse-core/audits/seo/robots-txt.js | displayValueValidationError": {
+    "message": "{itemCount,plural, =1{Se encontró 1 error}other{Se encontraron # errores}}"
+  },
+  "lighthouse-core/audits/seo/robots-txt.js | explanation": {
+    "message": "Lighthouse no pudo descargar un archivo robots.txt"
+  },
+  "lighthouse-core/audits/seo/robots-txt.js | failureTitle": {
+    "message": "robots.txt no es válido"
+  },
+  "lighthouse-core/audits/seo/robots-txt.js | title": {
+    "message": "robots.txt es válido"
+  },
+  "lighthouse-core/audits/seo/tap-targets.js | description": {
+    "message": "Los elementos interactivos, como los botones y enlaces, deben ser suficientemente grandes (48 × 48 px) y tener suficiente espacio alrededor para poder tocarlos con facilidad sin superponerse con otros elementos. [Más información](https://developers.google.com/web/fundamentals/accessibility/accessible-styles#multi-device_responsive_design)"
+  },
+  "lighthouse-core/audits/seo/tap-targets.js | displayValue": {
+    "message": "El {decimalProportion, number, percent} de los elementos táctiles tiene un tamaño adecuado"
+  },
+  "lighthouse-core/audits/seo/tap-targets.js | explanationViewportMetaNotOptimized": {
+    "message": "Los elementos táctiles son demasiado pequeños porque no hay metaetiquetas de viewport optimizadas para pantallas de dispositivos móviles"
+  },
+  "lighthouse-core/audits/seo/tap-targets.js | failureTitle": {
+    "message": "El tamaño de los elementos táctiles no es el adecuado"
+  },
+  "lighthouse-core/audits/seo/tap-targets.js | overlappingTargetHeader": {
+    "message": "Elementos superpuestos"
+  },
+  "lighthouse-core/audits/seo/tap-targets.js | sizeHeader": {
+    "message": "Tamaño"
+  },
+  "lighthouse-core/audits/seo/tap-targets.js | tapTargetHeader": {
+    "message": "Elemento táctil"
+  },
+  "lighthouse-core/audits/seo/tap-targets.js | title": {
+    "message": "El tamaño de los elementos táctiles es el adecuado"
+  },
+  "lighthouse-core/audits/time-to-first-byte.js | description": {
+    "message": "El tiempo hasta el primer byte indica el momento en el que el servidor envía una respuesta. [Más información](https://developers.google.com/web/tools/lighthouse/audits/ttfb)"
+  },
+  "lighthouse-core/audits/time-to-first-byte.js | displayValue": {
+    "message": "El documento raíz ha tardado {timeInMs, number, milliseconds} ms"
+  },
+  "lighthouse-core/audits/time-to-first-byte.js | failureTitle": {
+    "message": "Reduce los tiempos de respuesta del servidor (TTFB)"
+  },
+  "lighthouse-core/audits/time-to-first-byte.js | title": {
+    "message": "La respuesta del servidor es lenta (TTFB)"
+  },
+  "lighthouse-core/audits/user-timings.js | columnDuration": {
+    "message": "Duración"
+  },
+  "lighthouse-core/audits/user-timings.js | columnName": {
+    "message": "Nombre"
+  },
+  "lighthouse-core/audits/user-timings.js | columnStartTime": {
+    "message": "Hora de inicio"
+  },
+  "lighthouse-core/audits/user-timings.js | columnType": {
+    "message": "Tipo"
+  },
+  "lighthouse-core/audits/user-timings.js | description": {
+    "message": "Te recomendamos que uses la API de Tiempos de usuario en tu app para calcular su rendimiento real durante las principales experiencias de usuario. [Más información](https://developers.google.com/web/tools/lighthouse/audits/user-timing)"
+  },
+  "lighthouse-core/audits/user-timings.js | displayValue": {
+    "message": "{itemCount,plural, =1{1 tiempo de usuario}other{# tiempos de usuario}}"
+  },
+  "lighthouse-core/audits/user-timings.js | title": {
+    "message": "Medidas y marcas de Tiempos de usuario"
+  },
+  "lighthouse-core/audits/uses-rel-preconnect.js | crossoriginWarning": {
+    "message": "Se encontró un elemento <link> previo a la conexión para \"{securityOrigin}\", pero el navegador no lo usó. Comprueba que el atributo \"crossorigin\" se esté usando correctamente."
+  },
+  "lighthouse-core/audits/uses-rel-preconnect.js | description": {
+    "message": "Te recomendamos que agregues sugerencias de recursos preconnect o dns-prefetch para establecer conexiones previas con orígenes externos importantes. [Más información](https://developers.google.com/web/fundamentals/performance/resource-prioritization#preconnect)"
+  },
+  "lighthouse-core/audits/uses-rel-preconnect.js | title": {
+    "message": "Establece conexión previamente con los orígenes necesarios"
+  },
+  "lighthouse-core/audits/uses-rel-preload.js | crossoriginWarning": {
+    "message": "Se encontró un elemento <link> de precarga para \"{preloadURL}\", pero el navegador no lo utilizó. Comprueba que el atributo \"crossorigin\" se esté usando correctamente."
+  },
+  "lighthouse-core/audits/uses-rel-preload.js | description": {
+    "message": "Te recomendamos que uses <link rel=preload> para dar prioridad a los recursos que se solicitan más tarde al cargar la página. [Más información](https://developers.google.com/web/tools/lighthouse/audits/preload)"
+  },
+  "lighthouse-core/audits/uses-rel-preload.js | title": {
+    "message": "Carga previamente las solicitudes clave"
+  },
+  "lighthouse-core/config/default-config.js | a11yAriaGroupDescription": {
+    "message": "A continuación se indican consejos para optimizar el uso de ARIA en tu app, lo que puede mejorar la experiencia de los usuarios de tecnologías de asistencia, como los lectores de pantalla."
+  },
+  "lighthouse-core/config/default-config.js | a11yAriaGroupTitle": {
+    "message": "ARIA"
+  },
+  "lighthouse-core/config/default-config.js | a11yAudioVideoGroupDescription": {
+    "message": "Aquí tienes consejos para proporcionar contenido alternativo para audio y video. Así se puede mejorar la experiencia de los usuarios con dificultades auditivas o visuales."
+  },
+  "lighthouse-core/config/default-config.js | a11yAudioVideoGroupTitle": {
+    "message": "Audio y video"
+  },
+  "lighthouse-core/config/default-config.js | a11yBestPracticesGroupDescription": {
+    "message": "Estos elementos destacan las prácticas recomendadas de accesibilidad más habituales."
+  },
+  "lighthouse-core/config/default-config.js | a11yBestPracticesGroupTitle": {
+    "message": "Prácticas recomendadas"
+  },
+  "lighthouse-core/config/default-config.js | a11yCategoryDescription": {
+    "message": "Estas comprobaciones incluyen consejos para [mejorar la accesibilidad de tu app web](https://developers.google.com/web/fundamentals/accessibility). Solo se pueden detectar un subconjunto de problemas de accesibilidad de forma automática. Por eso, te recomendamos realizar pruebas manuales."
+  },
+  "lighthouse-core/config/default-config.js | a11yCategoryManualDescription": {
+    "message": "Estos elementos se ocupan de áreas que las herramientas de prueba automáticas no pueden analizar. Obtén más información en nuestra guía sobre [conducting an accessibility review](https://developers.google.com/web/fundamentals/accessibility/how-to-review)."
+  },
+  "lighthouse-core/config/default-config.js | a11yCategoryTitle": {
+    "message": "Accesibilidad"
+  },
+  "lighthouse-core/config/default-config.js | a11yColorContrastGroupDescription": {
+    "message": "A continuación se indican consejos para facilitar la lectura del contenido."
+  },
+  "lighthouse-core/config/default-config.js | a11yColorContrastGroupTitle": {
+    "message": "Contraste"
+  },
+  "lighthouse-core/config/default-config.js | a11yLanguageGroupDescription": {
+    "message": "A continuación se indican consejos para que los usuarios con diversas configuraciones regionales puedan interpretar mejor el contenido de las páginas."
+  },
+  "lighthouse-core/config/default-config.js | a11yLanguageGroupTitle": {
+    "message": "Internacionalización y localización"
+  },
+  "lighthouse-core/config/default-config.js | a11yNamesLabelsGroupDescription": {
+    "message": "A continuación se indican consejos para mejorar la semántica de los controles de tu app. Estos consejos pueden mejorar la experiencia de los usuarios de tecnologías de asistencia, como los lectores de pantalla."
+  },
+  "lighthouse-core/config/default-config.js | a11yNamesLabelsGroupTitle": {
+    "message": "Nombres y etiquetas"
+  },
+  "lighthouse-core/config/default-config.js | a11yNavigationGroupDescription": {
+    "message": "Estas son oportunidades para mejorar la navegación con el teclado en tu app."
+  },
+  "lighthouse-core/config/default-config.js | a11yNavigationGroupTitle": {
+    "message": "Navegación"
+  },
+  "lighthouse-core/config/default-config.js | a11yTablesListsVideoGroupDescription": {
+    "message": "Aquí tienes consejos para mejorar la lectura de datos en tablas o listas con tecnologías de asistencia como los lectores de pantalla."
+  },
+  "lighthouse-core/config/default-config.js | a11yTablesListsVideoGroupTitle": {
+    "message": "Tablas y listas"
+  },
+  "lighthouse-core/config/default-config.js | diagnosticsGroupDescription": {
+    "message": "Obtén más información sobre el rendimiento de tu app."
+  },
+  "lighthouse-core/config/default-config.js | diagnosticsGroupTitle": {
+    "message": "Diagnóstico"
+  },
+  "lighthouse-core/config/default-config.js | firstPaintImprovementsGroupDescription": {
+    "message": "El aspecto más importante del rendimiento es la rapidez con la que se renderizan los píxeles en la pantalla. Métricas clave: Primer procesamiento de imagen con contenido, Primera pintura significativa"
+  },
+  "lighthouse-core/config/default-config.js | firstPaintImprovementsGroupTitle": {
+    "message": "Mejoras del primer procesamiento de imagen"
+  },
+  "lighthouse-core/config/default-config.js | loadOpportunitiesGroupDescription": {
+    "message": "Estas optimizaciones pueden hacer que tus páginas se carguen más rápido."
+  },
+  "lighthouse-core/config/default-config.js | loadOpportunitiesGroupTitle": {
+    "message": "Oportunidades"
+  },
+  "lighthouse-core/config/default-config.js | metricGroupTitle": {
+    "message": "Métricas"
+  },
+  "lighthouse-core/config/default-config.js | overallImprovementsGroupDescription": {
+    "message": "Mejora la experiencia de carga general para que la página responda bien y se pueda usar lo antes posible. Métricas clave: Tiempo de carga, Índice de velocidad"
+  },
+  "lighthouse-core/config/default-config.js | overallImprovementsGroupTitle": {
+    "message": "Mejoras generales"
+  },
+  "lighthouse-core/config/default-config.js | performanceCategoryTitle": {
+    "message": "Rendimiento"
+  },
+  "lighthouse-core/config/default-config.js | pwaFastReliableGroupTitle": {
+    "message": "Rápida y confiable"
+  },
+  "lighthouse-core/config/default-config.js | pwaInstallableGroupTitle": {
+    "message": "Instalable"
+  },
+  "lighthouse-core/config/default-config.js | pwaOptimizedGroupTitle": {
+    "message": "Optimizado para PWA"
+  },
+  "lighthouse-core/config/default-config.js | seoCategoryDescription": {
+    "message": "Estas comprobaciones aseguran que tu página esté optimizada para posicionarse en los resultados de los motores de búsqueda. Hay otros factores que Lighthouse no comprueba y que pueden afectar a tu posicionamiento en los buscadores. [Más información](https://support.google.com/webmasters/answer/35769)"
+  },
+  "lighthouse-core/config/default-config.js | seoCategoryManualDescription": {
+    "message": "Ejecuta estos validadores adicionales en tu sitio web para comprobar más prácticas recomendadas de SEO."
+  },
+  "lighthouse-core/config/default-config.js | seoCategoryTitle": {
+    "message": "SEO"
+  },
+  "lighthouse-core/config/default-config.js | seoContentGroupDescription": {
+    "message": "Edita el código HTML de tu página web de forma que los rastreadores puedan entender mejor el contenido de tu app."
+  },
+  "lighthouse-core/config/default-config.js | seoContentGroupTitle": {
+    "message": "Prácticas recomendadas para el contenido"
+  },
+  "lighthouse-core/config/default-config.js | seoCrawlingGroupDescription": {
+    "message": "Para aparecer en los resultados de búsqueda, los rastreadores necesitan acceso a tu app."
+  },
+  "lighthouse-core/config/default-config.js | seoCrawlingGroupTitle": {
+    "message": "Rastreo e indexación"
+  },
+  "lighthouse-core/config/default-config.js | seoMobileGroupDescription": {
+    "message": "Asegúrate de que tus páginas estén optimizadas para dispositivos móviles para que los usuarios no tengan que pellizcar ni hacer zoom para leer las páginas de contenido. [Más información](https://developers.google.com/search/mobile-sites/)"
+  },
+  "lighthouse-core/config/default-config.js | seoMobileGroupTitle": {
+    "message": "Optimizada para dispositivos móviles"
+  },
+  "lighthouse-core/lib/i18n/i18n.js | columnCacheTTL": {
+    "message": "TTL en caché"
+  },
+  "lighthouse-core/lib/i18n/i18n.js | columnSize": {
+    "message": "Tamaño (KB)"
+  },
+  "lighthouse-core/lib/i18n/i18n.js | columnTimeSpent": {
+    "message": "Tiempo de uso"
+  },
+  "lighthouse-core/lib/i18n/i18n.js | columnURL": {
+    "message": "URL"
+  },
+  "lighthouse-core/lib/i18n/i18n.js | columnWastedBytes": {
+    "message": "Ahorro posible (KB)"
+  },
+  "lighthouse-core/lib/i18n/i18n.js | columnWastedMs": {
+    "message": "Ahorro posible (ms)"
+  },
+  "lighthouse-core/lib/i18n/i18n.js | displayValueByteSavings": {
+    "message": "Ahorro posible de {wastedBytes, number, bytes} KB"
+  },
+  "lighthouse-core/lib/i18n/i18n.js | displayValueMsSavings": {
+    "message": "Ahorro posible de {wastedMs, number, milliseconds} ms"
+  },
+  "lighthouse-core/lib/i18n/i18n.js | ms": {
+    "message": "{timeInMs, number, milliseconds} ms"
+  },
+  "lighthouse-core/lib/i18n/i18n.js | seconds": {
+    "message": "{timeInMs, number, seconds} s"
+  },
+  "lighthouse-core/lib/lh-error.js | badTraceRecording": {
+    "message": "Se produjo un error al registrar el rastro durante la carga de la página. Vuelve a ejecutar Lighthouse. ({errorCode})"
+  },
+  "lighthouse-core/lib/lh-error.js | criTimeout": {
+    "message": "Se agotó el tiempo de espera de la conexión inicial del protocolo del depurador."
+  },
+  "lighthouse-core/lib/lh-error.js | didntCollectScreenshots": {
+    "message": "Chrome no recopiló ninguna captura de pantalla al cargar la página. Comprueba que haya contenido visible en la página y vuelve a ejecutar Lighthouse. ({errorCode})"
+  },
+  "lighthouse-core/lib/lh-error.js | dnsFailure": {
+    "message": "Los servidores DNS no pudieron resolver el dominio proporcionado."
+  },
+  "lighthouse-core/lib/lh-error.js | internalChromeError": {
+    "message": "Se produjo un error interno de Chrome. Reinicia Chrome y vuelve a ejecutar Lighthouse."
+  },
+  "lighthouse-core/lib/lh-error.js | pageLoadFailed": {
+    "message": "Lighthouse no pudo cargar correctamente la página que solicitaste. Comprueba que estás probando la URL correcta y que el servidor responde correctamente a todas las solicitudes."
+  },
+  "lighthouse-core/lib/lh-error.js | pageLoadFailedHung": {
+    "message": "Lighthouse no pudo cargar correctamente la URL que solicitaste porque la página dejó de responder."
+  },
+  "lighthouse-core/lib/lh-error.js | pageLoadFailedInsecure": {
+    "message": "Las credenciales de seguridad de la URL que proporcionaste no son válidas. {securityMessages}"
+  },
+  "lighthouse-core/lib/lh-error.js | pageLoadFailedWithDetails": {
+    "message": "Lighthouse no pudo cargar correctamente la página que solicitaste. Comprueba que estás probando la URL correcta y que el servidor responde correctamente a todas las solicitudes. (Detalles: {errorDetails})"
+  },
+  "lighthouse-core/lib/lh-error.js | pageLoadFailedWithStatusCode": {
+    "message": "Lighthouse no pudo cargar correctamente la página que solicitaste. Comprueba que estás probando la URL correcta y que el servidor responde correctamente a todas las solicitudes. (Código de estado: {statusCode})"
+  },
+  "lighthouse-core/lib/lh-error.js | pageLoadTookTooLong": {
+    "message": "La página tardó demasiado en cargarse. Sigue los consejos del informe para reducir el tiempo de carga de la página y vuelve a ejecutar Lighthouse. ({errorCode})"
+  },
+  "lighthouse-core/lib/lh-error.js | protocolTimeout": {
+    "message": "Se superó el tiempo asignado para la respuesta de protocolo de DevTools. (Método: {protocolMethod})"
+  },
+  "lighthouse-core/lib/lh-error.js | requestContentTimeout": {
+    "message": "Se superó el tiempo asignado para obtener el contenido de los recursos"
+  },
+  "lighthouse-core/lib/lh-error.js | urlInvalid": {
+    "message": "Al parecer, la URL que proporcionaste no es válida."
+  },
+  "lighthouse-core/report/html/renderer/util.js | auditGroupExpandTooltip": {
+    "message": "Mostrar auditorías"
+  },
+  "lighthouse-core/report/html/renderer/util.js | crcInitialNavigation": {
+    "message": "Navegación inicial"
+  },
+  "lighthouse-core/report/html/renderer/util.js | crcLongestDurationLabel": {
+    "message": "Latencia de ruta crítica máxima:"
+  },
+  "lighthouse-core/report/html/renderer/util.js | errorLabel": {
+    "message": "Error"
+  },
+  "lighthouse-core/report/html/renderer/util.js | errorMissingAuditInfo": {
+    "message": "Error del informe: No hay información de la auditoría"
+  },
+  "lighthouse-core/report/html/renderer/util.js | labDataTitle": {
+    "message": "Datos de prueba"
+  },
+  "lighthouse-core/report/html/renderer/util.js | lsPerformanceCategoryDescription": {
+    "message": "[Lighthouse](https://developers.google.com/web/tools/lighthouse/) analizó la página actual en una red móvil emulada. Los valores son estimados y pueden variar."
+  },
+  "lighthouse-core/report/html/renderer/util.js | manualAuditsGroupTitle": {
+    "message": "Elementos adicionales que se deben comprobar manualmente"
+  },
+  "lighthouse-core/report/html/renderer/util.js | notApplicableAuditsGroupTitle": {
+    "message": "No aplicable"
+  },
+  "lighthouse-core/report/html/renderer/util.js | opportunityResourceColumnLabel": {
+    "message": "Oportunidad"
+  },
+  "lighthouse-core/report/html/renderer/util.js | opportunitySavingsColumnLabel": {
+    "message": "Ahorro estimado"
+  },
+  "lighthouse-core/report/html/renderer/util.js | passedAuditsGroupTitle": {
+    "message": "Auditorías aprobadas"
+  },
+  "lighthouse-core/report/html/renderer/util.js | snippetCollapseButtonLabel": {
+    "message": "Contraer fragmento"
+  },
+  "lighthouse-core/report/html/renderer/util.js | snippetExpandButtonLabel": {
+    "message": "Expandir fragmento"
+  },
+  "lighthouse-core/report/html/renderer/util.js | toplevelWarningsMessage": {
+    "message": "Algunos problemas afectaron la ejecución de Lighthouse:"
+  },
+  "lighthouse-core/report/html/renderer/util.js | varianceDisclaimer": {
+    "message": "Los valores son estimados y pueden variar."
+  },
+  "lighthouse-core/report/html/renderer/util.js | warningAuditsGroupTitle": {
+    "message": "Auditorías aprobadas con advertencias"
+  },
+  "lighthouse-core/report/html/renderer/util.js | warningHeader": {
+    "message": "Advertencias: "
+  },
+  "stack-packs/packs/wordpress.js | efficient_animated_content": {
+    "message": "Puedes subir tu GIF a un servicio que permita insertarlo como un video HTML5."
+  },
+  "stack-packs/packs/wordpress.js | offscreen_images": {
+    "message": "Instala un [complemento de carga diferida de WordPress](https://wordpress.org/plugins/search/lazy+load/) con la capacidad de postergar imágenes que no aparecen en la pantalla, o cambia a un tema con esa función. También puedes usar [el complemento AMP](https://wordpress.org/plugins/amp/)."
+  },
+  "stack-packs/packs/wordpress.js | render_blocking_resources": {
+    "message": "Existen varios complementos de WordPress que pueden ayudarte a [insertar recursos fundamentales](https://wordpress.org/plugins/search/critical+css/) o a [postergar precursos menos importantes](https://wordpress.org/plugins/search/defer+css+javascript/). Ten en cuenta que las optimizaciones que ofrecen estos complementos pueden bloquear funciones de tu tema o tus complementos, así que seguramente tengas que hacer cambios en el código."
+  },
+  "stack-packs/packs/wordpress.js | time_to_first_byte": {
+    "message": "Los temas, los complementos y las especificaciones del servidor afectan al tiempo de respuesta. Puedes buscar un tema más optimizado, seleccionar un complemento de optimización o actualizar tu servidor."
+  },
+  "stack-packs/packs/wordpress.js | total_byte_weight": {
+    "message": "Puedes mostrar fragmentos en tus listas de entradas (por ejemplo, mediante la etiqueta \"<more>\"), reducir la cantidad de entradas que se muestran en cada página, dividir tus entradas más largas en múltiples páginas o usar un complemento para postergar la carga de los comentarios."
+  },
+  "stack-packs/packs/wordpress.js | unminified_css": {
+    "message": "Hay varios [complementos de WordPress](https://wordpress.org/plugins/search/minify+css/) que pueden concatenar, reducir y comprimir tus estilos para acelerar tu sitio web. Te recomendamos que, si es posible, uses un proceso de creación para realizar la reducción de forma anticipada."
+  },
+  "stack-packs/packs/wordpress.js | unminified_javascript": {
+    "message": "Hay varios [complementos de WordPress](https://wordpress.org/plugins/search/minify+javascript/) que pueden concatenar, reducir y comprimir tus estilos para acelerar tu sitio web. Te recomendamos que, si es posible, uses un proceso de creación para realizar la reducción de forma anticipada."
+  },
+  "stack-packs/packs/wordpress.js | unused_css_rules": {
+    "message": "Puedes reducir o cambiar la cantidad de [complementos de WordPress](https://wordpress.org/plugins/) que cargan archivos CSS sin usar en tu página. Para identificar los complementos que agregan archivos CSS externos, ejecuta [cobertura de código](https://developers.google.com/web/updates/2017/04/devtools-release-notes#coverage) en DevTools de Chrome. Puedes identificar el tema o complemento en la URL de la hoja de estilo. Presta atención a los complementos con varias hojas de estilo en la lista y con muchos elementos en rojo en la cobertura de código. Un complemento solo debería poner en cola una hoja de estilo (si esta se usa en la página)."
+  },
+  "stack-packs/packs/wordpress.js | unused_javascript": {
+    "message": "Puedes reducir o cambiar la cantidad de [complementos de WordPress](https://wordpress.org/plugins/) que cargan JavaScript sin usar en tu página. Para identificar los complementos que agregan JavaScript externo, ejecuta [cobertura de código](https://developers.google.com/web/updates/2017/04/devtools-release-notes#coverage) en DevTools de Chrome. Puedes identificar el tema o complemento concreto en la URL de la secuencia de comandos. Presta atención a los complementos con varias secuencias de comandos en la lista y con muchos elementos en rojo en la cobertura de código. Un complemento solo debería poner en cola una secuencia de comandos (si esta se usa en la página)."
+  },
+  "stack-packs/packs/wordpress.js | uses_long_cache_ttl": {
+    "message": "Consulta información sobre el [almacenamiento en la memoria caché del navegador en WordPress](https://codex.wordpress.org/WordPress_Optimization#Browser_Caching)."
+  },
+  "stack-packs/packs/wordpress.js | uses_optimized_images": {
+    "message": "Puedes utilizar un [complemento de optimización de imágenes de WordPress](https://wordpress.org/plugins/search/optimize+images/) que comprima tus imágenes conservando la calidad."
+  },
+  "stack-packs/packs/wordpress.js | uses_responsive_images": {
+    "message": "Carga imágenes directamente a través de [media library](https://codex.wordpress.org/Media_Library_Screen) para garantizar que estén disponibles los tamaños de imagen requeridos y, luego, insértalas desde la biblioteca multimedia o usa el widget de imágenes para asegurarte de que se utilicen los tamaños de imagen óptimos (incluidos los que se utilizan para interrupciones de respuestas). Evita usar imágenes \"completas\", a menos que las dimensiones sean adecuadas para su uso. [Más información](https://codex.wordpress.org/Inserting_Images_into_Posts_and_Pages#Image_Size)"
+  },
+  "stack-packs/packs/wordpress.js | uses_text_compression": {
+    "message": "Puedes habilitar la compresión de texto en la configuración de tu servidor web."
+  },
+  "stack-packs/packs/wordpress.js | uses_webp_images": {
+    "message": "Puedes utilizar un [complemento](https://wordpress.org/plugins/search/convert+webp/) o un servicio que convierta automáticamente las imágenes que subas en los formatos óptimos."
+  }
+}
\ No newline at end of file
diff --git a/lighthouse-core/lib/i18n/locales/pt.json b/lighthouse-core/lib/i18n/locales/pt.json
index 53e806e90449..6b47079c9cf8 100644
--- a/lighthouse-core/lib/i18n/locales/pt.json
+++ b/lighthouse-core/lib/i18n/locales/pt.json
@@ -534,7 +534,7 @@
     "message": "Tempo até ficar interativa"
   },
   "lighthouse-core/audits/metrics/max-potential-fid.js | description": {
-    "message": "O primeiro atraso de entrada em potencial que seus usuários notariam seria a duração, em milésimos de segundo, da tarefa mais longa."
+    "message": "A potencial latência de entrada que seus usuários notariam seria a duração, em milésimos de segundo, da tarefa mais longa."
   },
   "lighthouse-core/audits/metrics/max-potential-fid.js | title": {
     "message": "Potencial máx. de 1º atraso de entrada"
diff --git a/types/externs.d.ts b/types/externs.d.ts
index 94b229dafc19..ded65e95fb99 100644
--- a/types/externs.d.ts
+++ b/types/externs.d.ts
@@ -74,7 +74,7 @@ declare global {
       serverResponseTimeByOrigin: {[origin: string]: number};
     }
 
-    export type Locale = 'en-US'|'en'|'en-AU'|'en-GB'|'en-IE'|'en-SG'|'en-ZA'|'en-IN'|'ar-XB'|'ar'|'bg'|'bs'|'ca'|'cs'|'da'|'de'|'el'|'en-XA'|'es'|'fi'|'fil'|'fr'|'he'|'hi'|'hr'|'hu'|'gsw'|'id'|'in'|'it'|'iw'|'ja'|'ko'|'ln'|'lt'|'lv'|'mo'|'nl'|'nb'|'no'|'pl'|'pt'|'pt-PT'|'ro'|'ru'|'sk'|'sl'|'sr'|'sr-Latn'|'sv'|'ta'|'te'|'th'|'tl'|'tr'|'uk'|'vi'|'zh'|'zh-HK'|'zh-TW';
+    export type Locale = 'en-US'|'en'|'en-AU'|'en-GB'|'en-IE'|'en-SG'|'en-ZA'|'en-IN'|'ar-XB'|'ar'|'bg'|'bs'|'ca'|'cs'|'da'|'de'|'el'|'en-XA'|'es'|'es-419'|'es-AR'|'es-BO'|'es-BR'|'es-BZ'|'es-CL'|'es-CO'|'es-CR'|'es-CU'|'es-DO'|'es-EC'|'es-GT'|'es-HN'|'es-MX'|'es-NI'|'es-PA'|'es-PE'|'es-PR'|'es-PY'|'es-SV'|'es-US'|'es-UY'|'es-VE'|'fi'|'fil'|'fr'|'he'|'hi'|'hr'|'hu'|'gsw'|'id'|'in'|'it'|'iw'|'ja'|'ko'|'ln'|'lt'|'lv'|'mo'|'nl'|'nb'|'no'|'pl'|'pt'|'pt-PT'|'ro'|'ru'|'sk'|'sl'|'sr'|'sr-Latn'|'sv'|'ta'|'te'|'th'|'tl'|'tr'|'uk'|'vi'|'zh'|'zh-HK'|'zh-TW';
 
     export type OutputMode = 'json' | 'html' | 'csv';
 

From c9996f4786984f2936980cac23fa03daf2ca4800 Mon Sep 17 00:00:00 2001
From: Rishi Kumar Chawda <rishichawda@users.noreply.github.com>
Date: Wed, 12 Jun 2019 23:43:00 +0530
Subject: [PATCH 037/110] docs(readme): update lighthouse-mocha-example related
 project (#9158)

---
 readme.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/readme.md b/readme.md
index 9008202926e7..0f8399ca8bdb 100644
--- a/readme.md
+++ b/readme.md
@@ -318,7 +318,7 @@ Other awesome open source projects that use Lighthouse.
 * **[lighthouse-jest-example](https://github.com/justinribeiro/lighthouse-jest-example)** - gather performance metrics via Lighthouse and assert results with Jest; uses Puppeteer to start Chrome with network emulation settings defined by WebPageTest.
 * **[lighthouse-lambda](https://github.com/joytocode/lighthouse-lambda)** - Run Lighthouse on AWS Lambda with prebuilt stable desktop Headless Chrome.
 * **[lighthouse-magic-light](https://github.com/manekinekko/lighthouse-magic-light)** set the color of the MagicLight Bluetooth Smart Light Bulb based on Lighthouse score
-* **[lighthouse-mocha-example](https://github.com/justinribeiro/lighthouse-mocha-example)** - gather performance metrics via Lighthouse and tests them in Mocha
+* **[lighthouse-mocha-example](https://github.com/rishichawda/lighthouse-mocha-example)** - Run Lighthouse performance tests with Mocha and chrome-launcher.
 * **[lighthouse-persist](https://github.com/foo-software/lighthouse-persist)** - Run Lighthouse and upload HTML reports to an AWS S3 bucket.
 * **[lighthouse4u](https://github.com/godaddy/lighthouse4u)** - LH4U provides Google Lighthouse as a service, surfaced by both a friendly UI+API, and backed by Elastic Search for easy querying and visualization.
 * **[performance-budgets](https://performance-budgets.netlify.com/)** - Easily assert Lighthouse budgets with Docker.

From 1e1941869c2346589f2bc3221a0bd0f9efa116c9 Mon Sep 17 00:00:00 2001
From: Patrick Hulce <patrick.hulce@gmail.com>
Date: Wed, 12 Jun 2019 18:42:29 -0500
Subject: [PATCH 038/110] core(gather-runner): treat Chrome interstitials as
 pageLoadErrors (#9176)

---
 .../test/smokehouse/error-expectations.js     |   4 +-
 lighthouse-core/gather/gather-runner.js       |  37 ++++-
 lighthouse-core/lib/i18n/en-US.json           |   4 +
 lighthouse-core/lib/lh-error.js               |   9 ++
 .../test/gather/gather-runner-test.js         | 129 ++++++++++++++++++
 5 files changed, 180 insertions(+), 3 deletions(-)

diff --git a/lighthouse-cli/test/smokehouse/error-expectations.js b/lighthouse-cli/test/smokehouse/error-expectations.js
index 0d2e40ac47eb..7f0f9bc80401 100644
--- a/lighthouse-cli/test/smokehouse/error-expectations.js
+++ b/lighthouse-cli/test/smokehouse/error-expectations.js
@@ -27,10 +27,10 @@ module.exports = [
       finalUrl: 'https://expired.badssl.com/',
       audits: {},
       // TODO: runtimeError only exists because of selection of audits.
-      runtimeError: {code: 'FAILED_DOCUMENT_REQUEST'},
+      runtimeError: {code: 'INSECURE_DOCUMENT_REQUEST'},
     },
     artifacts: {
-      ViewportDimensions: {code: 'FAILED_DOCUMENT_REQUEST'},
+      ViewportDimensions: {code: 'INSECURE_DOCUMENT_REQUEST'},
     },
   },
 ];
diff --git a/lighthouse-core/gather/gather-runner.js b/lighthouse-core/gather/gather-runner.js
index c1d50c80f8e7..deb8d4611fe6 100644
--- a/lighthouse-core/gather/gather-runner.js
+++ b/lighthouse-core/gather/gather-runner.js
@@ -167,6 +167,37 @@ class GatherRunner {
     }
   }
 
+  /**
+   * Returns an error if we ended up on the `chrome-error` page and all other requests failed.
+   * @param {Array<LH.Artifacts.NetworkRequest>} networkRecords
+   * @return {LH.LighthouseError|undefined}
+   */
+  static getInterstitialError(networkRecords) {
+    const interstitialRequest = networkRecords
+      .find(record => record.documentURL.startsWith('chrome-error://'));
+    // If the page didn't end up on a chrome interstitial, there's no error here.
+    if (!interstitialRequest) return undefined;
+
+    const pageNetworkRecords = networkRecords
+      .filter(record => !URL.NON_NETWORK_PROTOCOLS.includes(record.protocol) &&
+        !record.documentURL.startsWith('chrome-error://'));
+    // If none of the requests failed, there's no error here.
+    // We don't expect that this case could ever occur, but better safe than sorry.
+    // Note also that in cases of redirects, the initial requests could succeed and we still end up
+    // on the error interstitial page.
+    if (!pageNetworkRecords.some(record => record.failed)) return undefined;
+
+    // If a request failed with the `net::ERR_CERT_*` collection of errors, then it's a security issue.
+    const insecureRequest = pageNetworkRecords.find(record =>
+      record.failed && record.localizedFailDescription.startsWith('net::ERR_CERT'));
+    if (insecureRequest) {
+      return new LHError(LHError.errors.INSECURE_DOCUMENT_REQUEST, {securityMessages:
+        insecureRequest.localizedFailDescription});
+    }
+
+    return new LHError(LHError.errors.CHROME_INTERSTITIAL_ERROR);
+  }
+
   /**
    * Returns an error if the page load should be considered failed, e.g. from a
    * main document request failure, a security issue, etc.
@@ -177,10 +208,14 @@ class GatherRunner {
    */
   static getPageLoadError(passContext, loadData, navigationError) {
     const networkError = GatherRunner.getNetworkError(passContext.url, loadData.networkRecords);
+    const interstitialError = GatherRunner.getInterstitialError(loadData.networkRecords);
 
-    //  If the driver was offline, the load will fail without offline support. Ignore this case.
+    // If the driver was offline, the load will fail without offline support. Ignore this case.
     if (!passContext.driver.online) return;
 
+    // We want to special-case the interstitial beyond FAILED_DOCUMENT_REQUEST. See https://github.com/GoogleChrome/lighthouse/pull/8865#issuecomment-497507618
+    if (interstitialError) return interstitialError;
+
     // Network errors are usually the most specific and provide the best reason for why the page failed to load.
     // Prefer networkError over navigationError.
     // Example: `DNS_FAILURE` is better than `NO_FCP`.
diff --git a/lighthouse-core/lib/i18n/en-US.json b/lighthouse-core/lib/i18n/en-US.json
index b4d573c3d4c0..224f11629c55 100644
--- a/lighthouse-core/lib/i18n/en-US.json
+++ b/lighthouse-core/lib/i18n/en-US.json
@@ -1363,6 +1363,10 @@
     "message": "The URL you have provided does not have a valid security certificate. {securityMessages}",
     "description": "Error message explaining that the security certificate of the page Lighthouse observed was invalid, so the URL cannot be accessed. securityMessages will be replaced with one or more strings from the browser explaining what was insecure about the page load."
   },
+  "lighthouse-core/lib/lh-error.js | pageLoadFailedInterstitial": {
+    "message": "Chrome prevented page load with an interstitial. Make sure you are testing the correct URL and that the server is properly responding to all requests.",
+    "description": "Error message explaining that Chrome prevented the page from loading and displayed an interstitial screen instead, so the URL cannot be accessed."
+  },
   "lighthouse-core/lib/lh-error.js | pageLoadFailedWithDetails": {
     "message": "Lighthouse was unable to reliably load the page you requested. Make sure you are testing the correct URL and that the server is properly responding to all requests. (Details: {errorDetails})",
     "description": "Error message explaining that Lighthouse could not load the requested URL and the steps that might be taken to fix the unreliability."
diff --git a/lighthouse-core/lib/lh-error.js b/lighthouse-core/lib/lh-error.js
index fdbf06d7abfa..cf2c5be0df63 100644
--- a/lighthouse-core/lib/lh-error.js
+++ b/lighthouse-core/lib/lh-error.js
@@ -23,6 +23,8 @@ const UIStrings = {
   pageLoadFailedWithDetails: 'Lighthouse was unable to reliably load the page you requested. Make sure you are testing the correct URL and that the server is properly responding to all requests. (Details: {errorDetails})',
   /** Error message explaining that the security certificate of the page Lighthouse observed was invalid, so the URL cannot be accessed. securityMessages will be replaced with one or more strings from the browser explaining what was insecure about the page load. */
   pageLoadFailedInsecure: 'The URL you have provided does not have a valid security certificate. {securityMessages}',
+  /** Error message explaining that Chrome prevented the page from loading and displayed an interstitial screen instead, so the URL cannot be accessed. */
+  pageLoadFailedInterstitial: 'Chrome prevented page load with an interstitial. Make sure you are testing the correct URL and that the server is properly responding to all requests.',
   /** Error message explaining that Chrome has encountered an error during the Lighthouse run, and that Chrome should be restarted. */
   internalChromeError: 'An internal Chrome error occurred. Please restart Chrome and try re-running Lighthouse.',
   /** Error message explaining that fetching the resources of the webpage has taken longer than the maximum time. */
@@ -180,6 +182,13 @@ const ERRORS = {
     message: UIStrings.pageLoadFailedInsecure,
     lhrRuntimeError: true,
   },
+  /* Used when any Chrome interstitial error prevents page load.
+   */
+  CHROME_INTERSTITIAL_ERROR: {
+    code: 'CHROME_INTERSTITIAL_ERROR',
+    message: UIStrings.pageLoadFailedInterstitial,
+    lhrRuntimeError: true,
+  },
   /* Used when the page stopped responding and did not finish loading. */
   PAGE_HUNG: {
     code: 'PAGE_HUNG',
diff --git a/lighthouse-core/test/gather/gather-runner-test.js b/lighthouse-core/test/gather/gather-runner-test.js
index f76f0f63ff00..234bd7fd776a 100644
--- a/lighthouse-core/test/gather/gather-runner-test.js
+++ b/lighthouse-core/test/gather/gather-runner-test.js
@@ -850,6 +850,135 @@ describe('GatherRunner', function() {
     });
   });
 
+  describe('#getInterstitialError', () => {
+    it('passes when the page is loaded', () => {
+      const url = 'http://the-page.com';
+      const mainRecord = new NetworkRequest();
+      mainRecord.url = url;
+      expect(GatherRunner.getInterstitialError([mainRecord])).toBeUndefined();
+    });
+
+    it('passes when page fails to load normally', () => {
+      const url = 'http://the-page.com';
+      const mainRecord = new NetworkRequest();
+      mainRecord.url = url;
+      mainRecord.failed = true;
+      mainRecord.localizedFailDescription = 'foobar';
+      expect(GatherRunner.getInterstitialError([mainRecord])).toBeUndefined();
+    });
+
+    it('passes when page gets a generic interstitial but somehow also loads everything', () => {
+      // This case, AFAIK, is impossible, but we'll err on the side of not tanking the run.
+      const url = 'http://the-page.com';
+      const mainRecord = new NetworkRequest();
+      mainRecord.url = url;
+      const interstitialRecord = new NetworkRequest();
+      interstitialRecord.url = 'data:text/html;base64,abcdef';
+      interstitialRecord.documentURL = 'chrome-error://chromewebdata/';
+      const records = [mainRecord, interstitialRecord];
+      expect(GatherRunner.getInterstitialError(records)).toBeUndefined();
+    });
+
+    it('fails when page gets a generic interstitial', () => {
+      const url = 'http://the-page.com';
+      const mainRecord = new NetworkRequest();
+      mainRecord.url = url;
+      mainRecord.failed = true;
+      mainRecord.localizedFailDescription = 'ERR_CONNECTION_RESET';
+      const interstitialRecord = new NetworkRequest();
+      interstitialRecord.url = 'data:text/html;base64,abcdef';
+      interstitialRecord.documentURL = 'chrome-error://chromewebdata/';
+      const records = [mainRecord, interstitialRecord];
+      const error = GatherRunner.getInterstitialError(records);
+      expect(error.message).toEqual('CHROME_INTERSTITIAL_ERROR');
+      expect(error.code).toEqual('CHROME_INTERSTITIAL_ERROR');
+      expect(error.friendlyMessage).toBeDisplayString(/^Chrome prevented/);
+    });
+
+    it('fails when page gets a security interstitial', () => {
+      const url = 'http://the-page.com';
+      const mainRecord = new NetworkRequest();
+      mainRecord.url = url;
+      mainRecord.failed = true;
+      mainRecord.localizedFailDescription = 'net::ERR_CERT_COMMON_NAME_INVALID';
+      const interstitialRecord = new NetworkRequest();
+      interstitialRecord.url = 'data:text/html;base64,abcdef';
+      interstitialRecord.documentURL = 'chrome-error://chromewebdata/';
+      const records = [mainRecord, interstitialRecord];
+      const error = GatherRunner.getInterstitialError(records);
+      expect(error.message).toEqual('INSECURE_DOCUMENT_REQUEST');
+      expect(error.code).toEqual('INSECURE_DOCUMENT_REQUEST');
+      expect(error.friendlyMessage).toBeDisplayString(/valid security certificate/);
+      expect(error.friendlyMessage).toBeDisplayString(/net::ERR_CERT_COMMON_NAME_INVALID/);
+    });
+  });
+
+  describe('#getPageLoadError', () => {
+    let navigationError;
+
+    beforeEach(() => {
+      navigationError = new Error('NAVIGATION_ERROR');
+    });
+
+    it('passes when the page is loaded', () => {
+      const passContext = {url: 'http://the-page.com', driver: {online: true}};
+      const mainRecord = new NetworkRequest();
+      const loadData = {networkRecords: [mainRecord]};
+      mainRecord.url = passContext.url;
+      const error = GatherRunner.getPageLoadError(passContext, loadData, undefined);
+      expect(error).toBeUndefined();
+    });
+
+    it('passes when the page is offline', () => {
+      const passContext = {url: 'http://the-page.com', driver: {online: false}};
+      const mainRecord = new NetworkRequest();
+      const loadData = {networkRecords: [mainRecord]};
+      mainRecord.url = passContext.url;
+      mainRecord.failed = true;
+
+      const error = GatherRunner.getPageLoadError(passContext, loadData, undefined);
+      expect(error).toBeUndefined();
+    });
+
+    it('fails with interstitial error first', () => {
+      const passContext = {url: 'http://the-page.com', driver: {online: true}};
+      const mainRecord = new NetworkRequest();
+      const interstitialRecord = new NetworkRequest();
+      const loadData = {networkRecords: [mainRecord, interstitialRecord]};
+
+      mainRecord.url = passContext.url;
+      mainRecord.failed = true;
+      interstitialRecord.url = 'data:text/html;base64,abcdef';
+      interstitialRecord.documentURL = 'chrome-error://chromewebdata/';
+
+      const error = GatherRunner.getPageLoadError(passContext, loadData, navigationError);
+      expect(error.message).toEqual('CHROME_INTERSTITIAL_ERROR');
+    });
+
+    it('fails with network error next', () => {
+      const passContext = {url: 'http://the-page.com', driver: {online: true}};
+      const mainRecord = new NetworkRequest();
+      const loadData = {networkRecords: [mainRecord]};
+
+      mainRecord.url = passContext.url;
+      mainRecord.failed = true;
+
+      const error = GatherRunner.getPageLoadError(passContext, loadData, navigationError);
+      expect(error.message).toEqual('FAILED_DOCUMENT_REQUEST');
+    });
+
+    it('fails with nav error last', () => {
+      const passContext = {url: 'http://the-page.com', driver: {online: true}};
+      const mainRecord = new NetworkRequest();
+      const loadData = {networkRecords: [mainRecord]};
+
+      mainRecord.url = passContext.url;
+
+      const error = GatherRunner.getPageLoadError(passContext, loadData, navigationError);
+      expect(error.message).toEqual('NAVIGATION_ERROR');
+    });
+  });
+
   describe('artifact collection', () => {
     // Make sure our gatherers never execute in parallel
     it('runs gatherer lifecycle methods strictly in sequence', async () => {

From 76d2b12692584860d8343cb621c750c11fe1e15b Mon Sep 17 00:00:00 2001
From: Patrick Hulce <patrick.hulce@gmail.com>
Date: Fri, 14 Jun 2019 10:49:09 -0500
Subject: [PATCH 039/110] core(font-display): limit false positives (#9148)

---
 lighthouse-core/audits/font-display.js        | 48 ++++++++-----
 lighthouse-core/lib/i18n/en-US.json           |  4 ++
 .../test/audits/font-display-test.js          | 69 +++++++++++++++++--
 lighthouse-core/test/results/sample_v2.json   |  1 +
 proto/sample_v2_round_trip.json               |  3 +-
 5 files changed, 100 insertions(+), 25 deletions(-)

diff --git a/lighthouse-core/audits/font-display.js b/lighthouse-core/audits/font-display.js
index 52f0c1c35bc5..9f273a0a2179 100644
--- a/lighthouse-core/audits/font-display.js
+++ b/lighthouse-core/audits/font-display.js
@@ -24,6 +24,9 @@ const UIStrings = {
     'Leverage the font-display CSS feature to ensure text is user-visible while ' +
     'webfonts are loading. ' +
     '[Learn more](https://developers.google.com/web/updates/2016/02/font-display).',
+  /** A warning message that is shown when Lighthouse couldn't automatically check some of the page's fonts and that the user will need to manually check it. */
+  undeclaredFontURLWarning: 'Lighthouse was unable to automatically check the font-display value ' +
+    'for the following URL: {fontURL}.',
 };
 
 const str_ = i18n.createMessageInstanceIdFn(__filename, UIStrings);
@@ -44,10 +47,13 @@ class FontDisplay extends Audit {
 
   /**
    * @param {LH.Artifacts} artifacts
+   * @return {{passingURLs: Set<string>, failingURLs: Set<string>}}
    */
-  static findPassingFontDisplayDeclarations(artifacts) {
+  static findFontDisplayDeclarations(artifacts) {
     /** @type {Set<string>} */
     const passingURLs = new Set();
+    /** @type {Set<string>} */
+    const failingURLs = new Set();
 
     // Go through all the stylesheets to find all @font-face declarations
     for (const stylesheet of artifacts.CSSUsage.stylesheets) {
@@ -57,20 +63,18 @@ class FontDisplay extends Audit {
       const fontFaceDeclarations = newlinesStripped.match(/@font-face\s*{(.*?)}/g) || [];
       // Go through all the @font-face declarations to find a declared `font-display: ` property
       for (const declaration of fontFaceDeclarations) {
-        // Find the font-display value by matching a single token, optionally surrounded by whitespace,
-        // followed either by a semicolon or the end of a block.
-        const rawFontDisplay = declaration.match(/font-display\s*:\s*(\w+)\s*(;|\})/);
-        // If they didn't have a font-display property, it's the default, and it's failing; bail
-        if (!rawFontDisplay) continue;
-        // If they don't have one of the passing font-display values, it's failing; bail
-        const hasPassingFontDisplay = PASSING_FONT_DISPLAY_REGEX.test(rawFontDisplay[1]);
-        if (!hasPassingFontDisplay) continue;
-
-        // If it's passing, we'll try to find the URL it's referencing.
+        // We'll try to find the URL it's referencing.
         const rawFontURLs = declaration.match(CSS_URL_GLOBAL_REGEX);
         // If no URLs, we can't really do anything; bail
         if (!rawFontURLs) continue;
+        // Find the font-display value by matching a single token, optionally surrounded by whitespace,
+        // followed either by a semicolon or the end of a block.
+        const fontDisplayMatch = declaration.match(/font-display\s*:\s*(\w+)\s*(;|\})/);
+        const rawFontDisplay = (fontDisplayMatch && fontDisplayMatch[1]) || '';
+        const hasPassingFontDisplay = PASSING_FONT_DISPLAY_REGEX.test(rawFontDisplay);
+        const targetURLSet = hasPassingFontDisplay ? passingURLs : failingURLs;
 
+        // Finally convert the raw font URLs to the absolute URLs and add them to the set.
         const relativeURLs = rawFontURLs
           // @ts-ignore - guaranteed to match from previous regex, pull URL group out
           .map(s => s.match(CSS_URL_REGEX)[1].trim())
@@ -82,13 +86,14 @@ class FontDisplay extends Audit {
 
             return s;
           });
-        // Convert the relative CSS URL to an absolute URL and add it to the passing set
+
+        // Convert the relative CSS URL to an absolute URL and add it to the target set.
         for (const relativeURL of relativeURLs) {
           try {
             const relativeRoot = URL.isValid(stylesheet.header.sourceURL) ?
               stylesheet.header.sourceURL : artifacts.URL.finalUrl;
             const absoluteURL = new URL(relativeURL, relativeRoot);
-            passingURLs.add(absoluteURL.href);
+            targetURLSet.add(absoluteURL.href);
           } catch (err) {
             Sentry.captureException(err, {tags: {audit: this.meta.id}});
           }
@@ -96,7 +101,7 @@ class FontDisplay extends Audit {
       }
     }
 
-    return passingURLs;
+    return {passingURLs, failingURLs};
   }
 
   /**
@@ -107,16 +112,24 @@ class FontDisplay extends Audit {
   static async audit(artifacts, context) {
     const devtoolsLogs = artifacts.devtoolsLogs[this.DEFAULT_PASS];
     const networkRecords = await NetworkRecords.request(devtoolsLogs, context);
-    const passingFontURLs = FontDisplay.findPassingFontDisplayDeclarations(artifacts);
+    const {passingURLs, failingURLs} = FontDisplay.findFontDisplayDeclarations(artifacts);
+    /** @type {Array<string>} */
+    const warningURLs = [];
 
     const results = networkRecords
       // Find all fonts...
       .filter(record => record.resourceType === 'Font')
-      // ...that don't have a passing font-display value
-      .filter(record => !passingFontURLs.has(record.url))
       // ...and that aren't data URLs, the blocking concern doesn't really apply
       .filter(record => !/^data:/.test(record.url))
       .filter(record => !/^blob:/.test(record.url))
+      // ...that have a failing font-display value
+      .filter(record => {
+        // Failing URLs should be considered.
+        if (failingURLs.has(record.url)) return true;
+        // Everything else shouldn't be, but we should warn if we don't recognize the URL at all.
+        if (!passingURLs.has(record.url)) warningURLs.push(record.url);
+        return false;
+      })
       .map(record => {
         // In reality the end time should be calculated with paint time included
         // all browsers wait 3000ms to block text so we make sure 3000 is our max wasted time
@@ -139,6 +152,7 @@ class FontDisplay extends Audit {
     return {
       score: Number(results.length === 0),
       details,
+      warnings: warningURLs.map(fontURL => str_(UIStrings.undeclaredFontURLWarning, {fontURL})),
     };
   }
 }
diff --git a/lighthouse-core/lib/i18n/en-US.json b/lighthouse-core/lib/i18n/en-US.json
index 224f11629c55..91c6886af894 100644
--- a/lighthouse-core/lib/i18n/en-US.json
+++ b/lighthouse-core/lib/i18n/en-US.json
@@ -651,6 +651,10 @@
     "message": "All text remains visible during webfont loads",
     "description": "Title of a diagnostic audit that provides detail on if all the text on a webpage was visible while the page was loading its webfonts. This descriptive title is shown to users when the amount is acceptable and no user action is required."
   },
+  "lighthouse-core/audits/font-display.js | undeclaredFontURLWarning": {
+    "message": "Lighthouse was unable to automatically check the font-display value for the following URL: {fontURL}.",
+    "description": "A warning message that is shown when Lighthouse couldn't automatically check some of the page's fonts and that the user will need to manually check it."
+  },
   "lighthouse-core/audits/load-fast-enough-for-pwa.js | description": {
     "message": "A fast page load over a cellular network ensures a good mobile user experience. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/fast-3g).",
     "description": "Description of a Lighthouse audit that tells the user *why* they need to load fast enough on mobile networks. This is displayed after a user expands the section to see more. No character length limits. 'Learn More' becomes link text to additional documentation."
diff --git a/lighthouse-core/test/audits/font-display-test.js b/lighthouse-core/test/audits/font-display-test.js
index 36b674050513..f3dfad9d585e 100644
--- a/lighthouse-core/test/audits/font-display-test.js
+++ b/lighthouse-core/test/audits/font-display-test.js
@@ -6,7 +6,6 @@
 'use strict';
 
 const FontDisplayAudit = require('../../audits/font-display.js');
-const assert = require('assert');
 const networkRecordsToDevtoolsLog = require('../network-records-to-devtools-log.js');
 
 /* eslint-env jest */
@@ -73,8 +72,9 @@ describe('Performance: Font Display audit', () => {
       {url: networkRecords[1].url, wastedMs: 3000},
       {url: networkRecords[2].url, wastedMs: 1000},
     ];
-    assert.strictEqual(result.score, 0);
+    expect(result.score).toEqual(0);
     expect(result.details.items).toEqual(items);
+    expect(result.warnings).toEqual([]);
   });
 
   it('resolves URLs relative to stylesheet URL when available', async () => {
@@ -129,8 +129,9 @@ describe('Performance: Font Display audit', () => {
     ];
 
     const result = await FontDisplayAudit.audit(getArtifacts(), context);
-    assert.strictEqual(result.score, 1);
+    expect(result.score).toEqual(1);
     expect(result.details.items).toEqual([]);
+    expect(result.warnings).toEqual([]);
   });
 
   it('passes when all fonts have a correct font-display rule', async () => {
@@ -180,8 +181,9 @@ describe('Performance: Font Display audit', () => {
     ];
 
     const result = await FontDisplayAudit.audit(getArtifacts(), context);
-    assert.strictEqual(result.score, 1);
+    expect(result.score).toEqual(1);
     expect(result.details.items).toEqual([]);
+    expect(result.warnings).toEqual([]);
   });
 
   it('should handle real-world font-face declarations', async () => {
@@ -220,7 +222,7 @@ describe('Performance: Font Display audit', () => {
     ];
 
     const result = await FontDisplayAudit.audit(getArtifacts(), context);
-    assert.strictEqual(result.score, 0);
+    expect(result.score).toEqual(0);
     expect(result.details.items.map(item => item.url)).toEqual([
       'https://edition.i.cdn.cnn.com/.a/fonts/cnn/3.7.2/cnnclock-black.woff2',
       'https://registry.api.cnn.io/assets/fave/fonts/2.0.15/cnnsans-bold.woff',
@@ -228,6 +230,7 @@ describe('Performance: Font Display audit', () => {
       // 'https://example.com/foo/fonts/fontawesome-webfont.woff2?v=4.6.1',
       'https://fonts.gstatic.com/s/lato/v14/S6u9w4BMUTPHh50XSwiPGQ3q5d0.woff2',
     ]);
+    expect(result.warnings).toEqual([]);
   });
 
   it('handles varied font-display declarations', async () => {
@@ -259,7 +262,8 @@ describe('Performance: Font Display audit', () => {
 
     const result = await FontDisplayAudit.audit(getArtifacts(), context);
     expect(result.details.items).toEqual([]);
-    assert.strictEqual(result.score, 1);
+    expect(result.score).toEqual(1);
+    expect(result.warnings).toEqual([]);
   });
 
   it('handles custom source URLs from sourcemaps', async () => {
@@ -280,6 +284,57 @@ describe('Performance: Font Display audit', () => {
 
     const result = await FontDisplayAudit.audit(getArtifacts(), context);
     expect(result.details.items).toEqual([]);
-    assert.strictEqual(result.score, 1);
+    expect(result.score).toEqual(1);
+  });
+
+  it('should not flag a URL for which there is not @font-face at all', async () => {
+    // Sometimes the content does not come through, see https://github.com/GoogleChrome/lighthouse/issues/8493
+    stylesheet.content = ``;
+
+    networkRecords = [{
+      url: `https://example.com/foo/bar/font-0.woff`,
+      endTime: 2, startTime: 1,
+      resourceType: 'Font',
+    }];
+
+    const result = await FontDisplayAudit.audit(getArtifacts(), context);
+    expect(result.details.items).toEqual([]);
+    expect(result.score).toEqual(1);
+    expect(result.warnings).toHaveLength(1);
+    expect(result.warnings[0]).toBeDisplayString(/font-0.woff/);
+  });
+
+  it('should handle mixed content', async () => {
+    networkRecords = [{
+      url: `https://example.com/foo/bar/font-0.woff`,
+      endTime: 2, startTime: 1,
+      resourceType: 'Font',
+    }, {
+      url: `https://example.com/foo/bar/font-1.woff`,
+      endTime: 2, startTime: 1,
+      resourceType: 'Font',
+    }];
+
+    const artifacts = getArtifacts();
+    artifacts.CSSUsage.stylesheets = [
+      {content: '', header: {}},
+      {
+        content: `
+          @font-face {
+            /* try with " */
+            src: url("./font-0.woff");
+          }
+        `,
+        header: {},
+      },
+    ];
+    const result = await FontDisplayAudit.audit(artifacts, context);
+    expect(result.details.items).toEqual([{
+      url: `https://example.com/foo/bar/font-0.woff`,
+      wastedMs: 1000,
+    }]);
+    expect(result.score).toEqual(0);
+    expect(result.warnings).toHaveLength(1);
+    expect(result.warnings[0]).toBeDisplayString(/font-1.woff/);
   });
 });
diff --git a/lighthouse-core/test/results/sample_v2.json b/lighthouse-core/test/results/sample_v2.json
index 088cbea1083d..d9a6deefbf12 100644
--- a/lighthouse-core/test/results/sample_v2.json
+++ b/lighthouse-core/test/results/sample_v2.json
@@ -796,6 +796,7 @@
       "description": "Leverage the font-display CSS feature to ensure text is user-visible while webfonts are loading. [Learn more](https://developers.google.com/web/updates/2016/02/font-display).",
       "score": 1,
       "scoreDisplayMode": "binary",
+      "warnings": [],
       "details": {
         "type": "table",
         "headings": [],
diff --git a/proto/sample_v2_round_trip.json b/proto/sample_v2_round_trip.json
index 5e0e3279fa0f..54f58ebd45ec 100644
--- a/proto/sample_v2_round_trip.json
+++ b/proto/sample_v2_round_trip.json
@@ -759,7 +759,8 @@
             "id": "font-display",
             "score": 1.0,
             "scoreDisplayMode": "binary",
-            "title": "All text remains visible during webfont loads"
+            "title": "All text remains visible during webfont loads",
+            "warnings": []
         },
         "font-size": {
             "description": "Font sizes less than 12px are too small to be legible and require mobile visitors to \u201cpinch to zoom\u201d in order to read. Strive to have >60% of page text \u226512px. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/font-sizes).",

From 8a359d33ec5dc3558af98fb6dc0114418a2a46c4 Mon Sep 17 00:00:00 2001
From: Brendan Kenny <bckenny@gmail.com>
Date: Fri, 14 Jun 2019 12:36:31 -0700
Subject: [PATCH 040/110] report: add aria-labels to tools button and metric
 toggle (#9201)

---
 .../report/html/renderer/performance-category-renderer.js     | 4 ++--
 lighthouse-core/report/html/templates.html                    | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/lighthouse-core/report/html/renderer/performance-category-renderer.js b/lighthouse-core/report/html/renderer/performance-category-renderer.js
index 58083b5ee4e5..1193bb3a8d2d 100644
--- a/lighthouse-core/report/html/renderer/performance-category-renderer.js
+++ b/lighthouse-core/report/html/renderer/performance-category-renderer.js
@@ -123,14 +123,14 @@ class PerformanceCategoryRenderer extends CategoryRenderer {
     }
 
     // Metrics.
-    const metricAudits = category.auditRefs.filter(audit => audit.group === 'metrics');
     const metricAuditsEl = this.renderAuditGroup(groups.metrics);
 
     // Metric descriptions toggle.
     const toggleTmpl = this.dom.cloneTemplate('#tmpl-lh-metrics-toggle', this.templateContext);
     const toggleEl = this.dom.find('.lh-metrics-toggle', toggleTmpl);
-    metricAuditsEl.prepend(...toggleEl.childNodes);
+    metricAuditsEl.append(...toggleEl.childNodes);
 
+    const metricAudits = category.auditRefs.filter(audit => audit.group === 'metrics');
     const keyMetrics = metricAudits.filter(a => a.weight >= 3);
     const otherMetrics = metricAudits.filter(a => a.weight < 3);
 
diff --git a/lighthouse-core/report/html/templates.html b/lighthouse-core/report/html/templates.html
index 01498480b615..11d1d78e05fd 100644
--- a/lighthouse-core/report/html/templates.html
+++ b/lighthouse-core/report/html/templates.html
@@ -71,7 +71,7 @@
 <!-- Lighthouse metrics toggle -->
 <template id="tmpl-lh-metrics-toggle">
   <div class="lh-metrics-toggle">
-    <input class="lh-metrics-toggle__input" type="checkbox" name="toggle-metric-descriptions">
+    <input class="lh-metrics-toggle__input" type="checkbox" id="toggle-metric-descriptions" aria-label="Toggle the display of metric descriptions">
     <label class="lh-metrics-toggle__label" for="toggle-metric-descriptions">
       <div class="lh-metrics-toggle__icon lh-metrics-toggle__icon--less" aria-hidden="true">
         <svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="24" height="24" viewBox="0 0 24 24">
@@ -366,7 +366,7 @@
     <a href="" class="lh-topbar__url" target="_blank" rel="noopener"></a>
 
     <div class="lh-tools">
-      <button class="report-icon report-icon--share lh-tools__button" title="Export report">
+      <button class="report-icon report-icon--share lh-tools__button" title="Tools menu" aria-label="Toggle report tools menu">
         <svg width="100%" height="100%" viewBox="0 0 24 24">
             <path d="M0 0h24v24H0z" fill="none"/>
             <path d="M12 8c1.1 0 2-.9 2-2s-.9-2-2-2-2 .9-2 2 .9 2 2 2zm0 2c-1.1 0-2 .9-2 2s.9 2 2 2 2-.9 2-2-.9-2-2-2zm0 6c-1.1 0-2 .9-2 2s.9 2 2 2 2-.9 2-2-.9-2-2-2z"/>

From ebe7a22df3dcccf1ddefbddeae3aac9a3aeedc13 Mon Sep 17 00:00:00 2001
From: Ram <37770235+r0mflip@users.noreply.github.com>
Date: Mon, 17 Jun 2019 19:51:25 +0530
Subject: [PATCH 041/110] misc: use `CHROME_PATH` variable in CI and scripts
 (#9202)

---
 .appveyor.yml                              | 2 +-
 lighthouse-core/scripts/download-chrome.sh | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/.appveyor.yml b/.appveyor.yml
index 71fa74955d9f..f6e6cf6b91c5 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -21,7 +21,7 @@ install:
 
 before_test:
   - set "PATH=C:\MinGW\msys\1.0\bin;%PATH%"
-  - set "LIGHTHOUSE_CHROMIUM_PATH=%CD%\chrome-win32\chrome.exe"
+  - set "CHROME_PATH=%CD%\chrome-win32\chrome.exe"
   - bash ./lighthouse-core/scripts/download-chrome.sh
   - yarn build-all
 
diff --git a/lighthouse-core/scripts/download-chrome.sh b/lighthouse-core/scripts/download-chrome.sh
index 5c073cd7d5ab..aeeae3e901e2 100755
--- a/lighthouse-core/scripts/download-chrome.sh
+++ b/lighthouse-core/scripts/download-chrome.sh
@@ -14,12 +14,12 @@ else
   url="https://download-chromium.appspot.com/dl/Linux_x64?type=snapshots"
 fi
 
-if [ x"$LIGHTHOUSE_CHROMIUM_PATH" == x ]; then
-  echo "Error: Environment variable LIGHTHOUSE_CHROMIUM_PATH not set"
+if [ x"$CHROME_PATH" == x ]; then
+  echo "Error: Environment variable CHROME_PATH not set"
   exit 1
 fi
 
-if [ -e "$LIGHTHOUSE_CHROMIUM_PATH" ]; then
+if [ -e "$CHROME_PATH" ]; then
   echo "cached chrome found"
 else
   wget "$url" --no-check-certificate -q -O chrome.zip && unzip -q chrome.zip

From 5a229ac115993656f36173f0ea365b288275e0a2 Mon Sep 17 00:00:00 2001
From: Kaushik <kaushikchaubal@users.noreply.github.com>
Date: Mon, 17 Jun 2019 23:26:58 +0100
Subject: [PATCH 042/110] docs: change score type from 'string' to 'number'
 (#9225)

---
 docs/understanding-results.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/understanding-results.md b/docs/understanding-results.md
index a98ec06f7d90..c753e8e1d8ec 100644
--- a/docs/understanding-results.md
+++ b/docs/understanding-results.md
@@ -158,7 +158,7 @@ An array containing the different categories, their scores, and the results of t
 | id | `string` | The string identifier of the category. |
 | title | `string` | The human-friendly display name of the category. |
 | description | `string` | A brief description of the purpose of the category, supports markdown links. |
-| score | `string` | The overall score of the category, the weighted average of all its audits. |
+| score | `number` | The overall score of the category, the weighted average of all its audits. |
 | auditRefs | `AuditEntry[]` | An array of all the audit results in the category. |
 
 ### AuditEntry Properties

From 5c65f06a8fe12287e2f631406967b31df5c2d2b3 Mon Sep 17 00:00:00 2001
From: Connor Clark <cjamcl@google.com>
Date: Mon, 17 Jun 2019 17:10:44 -0700
Subject: [PATCH 043/110] misc: suggest uploading issue repro (#9217)

---
 .github/ISSUE_TEMPLATE/Bug_report.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/.github/ISSUE_TEMPLATE/Bug_report.md b/.github/ISSUE_TEMPLATE/Bug_report.md
index ea0f5dc9834e..098af3840a33 100644
--- a/.github/ISSUE_TEMPLATE/Bug_report.md
+++ b/.github/ISSUE_TEMPLATE/Bug_report.md
@@ -10,6 +10,8 @@ about: Report something working incorrectly
 
 #### Provide the steps to reproduce
 1. Run LH on <affected url>
+  
+<!-- If your page is only local, or is liable to change, consider uploading a repro so that we can more easily debug the problem. Some services that will help are: https://jsbin.com/, https://surge.sh/ -->
 
 #### What is the current behavior?
 

From f8d30cfa3030561dbb1c1295e3802d747ae71e6e Mon Sep 17 00:00:00 2001
From: Connor Clark <cjamcl@google.com>
Date: Mon, 17 Jun 2019 21:59:16 -0700
Subject: [PATCH 044/110] report: create naming convention for css variables
 (#9149)

---
 lighthouse-core/report/html/report-styles.css | 410 +++++++++---------
 lighthouse-core/report/html/templates.html    |  62 +--
 2 files changed, 243 insertions(+), 229 deletions(-)

diff --git a/lighthouse-core/report/html/report-styles.css b/lighthouse-core/report/html/report-styles.css
index d1752a9dc00e..4377ad093573 100644
--- a/lighthouse-core/report/html/report-styles.css
+++ b/lighthouse-core/report/html/report-styles.css
@@ -15,52 +15,68 @@
  * limitations under the License.
  */
 
+/*
+  Naming convention:
+
+  If a variable is used for a specific component: --{component}-{property name}-{modifier}
+
+  Both {component} and {property name} should be kebab-case. If the target is the entire page,
+  use 'report' for the component. The property name should be not be abbreviated. Use the
+  property name the variable is intended for - if it's used for multiple, a common descriptor
+  is fine (ex: 'size' for a variable applied to 'width' and 'height'). If a variable is shared
+  across multiple components, either create more variables or just drop the "{component}-"
+  part of the name. Append any modifiers at the end (ex: 'big', 'dark').
+
+  For colors: --color-{hue}-{intensity}
+
+  {intensity} is the Material Design tag - 700, A700, etc. Omit "-{intensity}" if there is only one
+  color of that hue.
+*/
 .lh-vars {
   --text-font-family: Roboto, Helvetica, Arial, sans-serif;
   --monospace-font-family: 'Roboto Mono', 'Menlo', 'dejavu sans mono', 'Consolas', 'Lucida Console', monospace;
-  --body-background-color: #fff;
-  --body-text-color: var(--color-black-900);
-  --body-font-size: 16px;
-  --body-line-height: 24px;
-  --subheader-color: hsl(206, 6%, 25%);
-  --header-font-size: 20px;
+  --report-background-color: #fff;
+  --report-text-color: var(--color-gray-900);
+  --report-font-size: 16px;
+  --report-line-height: 24px;
+  --snippet-color: var(--color-gray-800);
+  --category-header-font-size: 20px;
   --header-line-height: 24px;
-  --caption-line-height: 16px;
+  --audit-explanation-line-height: 16px;
   --default-padding: 12px;
-  --section-padding: 16px;
-  --section-indent: 16px;
-  --audit-item-gap: 5px;
-  --text-indent: 8px;
-  --secondary-text-color: var(--color-black-800);
+  --footer-padding-vertical: 16px;
+  --audit-margin-horizontal: 5px;
+  --stackpack-padding-horizontal: 10px;
+  --secondary-text-color: var(--color-gray-800);
   --informative-color: var(--color-blue-900);
-  --medium-75-gray: #757575;
-  --medium-50-gray: hsl(210, 17%, 98%);
+  --snippet-background-color: var(--color-gray-50);
   --report-secondary-border-color: #ebebeb;
-  --display-value-gray: hsl(216, 5%, 39%);
-  --report-width: calc(60 * var(--body-font-size));
+  --chevron-line-stroke: var(--color-gray-600);
+  --report-width: calc(60 * var(--report-font-size));
   --report-min-width: 400px;
-  --lh-score-icon-background-size: 24px;
-  --lh-tools-icon-size: var(--lh-score-icon-background-size);
-  --lh-tools-icon-color: var(--medium-75-gray);
-  --lh-table-higlight-bg: hsla(0, 0%, 75%, 0.1);
-  --lh-sparkline-height: 5px;
-  --lh-audit-vpadding: 8px;
-  --lh-audit-group-vpadding: 8px;
-  --lh-section-vpadding: 12px;
+  --score-icon-background-size: 24px;
+  --tools-icon-size: var(--score-icon-background-size);
+  --tools-icon-color: var(--color-gray-600);
+  --table-higlight-background-color: hsla(0, 0%, 75%, 0.1);
+  --sparkline-height: 5px;
+  --audit-padding-vertical: 8px;
+  --audit-group-padding-vertical: 8px;
+  --section-padding-vertical: 12px;
   --chevron-size: 12px;
-  --inner-audit-left-padding: calc(var(--score-shape-size) + var(--score-shape-margin-left) + var(--score-shape-margin-right));
+  --audit-description-padding-left: calc(var(--score-icon-size) + var(--score-icon-margin-left) + var(--score-icon-margin-right));
 
   /* Palette using Material Design Colors
    * https://www.materialui.co/colors */
-  --color-black-100: #F5F5F5;
-  --color-black-200: #E0E0E0;
-  --color-black-400: #BDBDBD;
-  --color-black-500: #9E9E9E;
-  --color-black-600: #757575;
-  --color-black-800: #424242;
-  --color-black-900: #212121;
-  --color-black: #000000;
-  --color-blue: #2962FF;
+  --color-gray-50: #FAFAFA;
+  --color-gray-100: #F5F5F5;
+  --color-gray-200: #E0E0E0;
+  --color-gray-400: #BDBDBD;
+  --color-gray-500: #9E9E9E;
+  --color-gray-600: #757575;
+  --color-gray-800: #424242;
+  --color-gray-900: #212121;
+  --color-gray: #000000;
+  --color-blue-A700: #2962FF;
   --color-green-700: #018642;
   --color-green: #0CCE6B;
   --color-orange-700: #D04900;
@@ -73,43 +89,43 @@
   --color-cyan-500: #00BCD4;
   --color-teal-600: #00897B;
 
-
-  /* TODO(cjamcl) clean up unused variables. */
-  --audits-margin-bottom: 40px;
-  --env-item-bg: var(--color-black-100);
+  --audit-group-margin-bottom: 40px;
+  --env-item-background-color: var(--color-gray-100);
   --env-name-min-width: 220px;
-  --env-tem-padding: 10px 0px;
-  --expandable-padding: 0 0 2px calc(var(--score-shape-margin-left) + var(--score-shape-size) + var(--score-shape-margin-right));
+  --env-item-padding: 10px 0px;
+  --env-item-font-size: 28px;
+  --env-item-line-height: 36px;
+  --metric-description-padding: 0 0 2px calc(var(--score-icon-margin-left) + var(--score-icon-size) + var(--score-icon-margin-right));
   --gauge-circle-size-big: 112px;
   --gauge-circle-size: 80px;
-  --header-padding: 20px 0 20px 0;
-  --icon-square-size: calc(var(--score-shape-size) * 0.88);
-  --plugin-badge-bg: var(--color-white);
+  --scores-container-padding: 20px 0 20px 0;
+  --icon-square-size: calc(var(--score-icon-size) * 0.88);
+  --plugin-badge-background-color: var(--color-white);
   --plugin-badge-size-big: calc(var(--gauge-circle-size-big) / 2.7);
   --plugin-badge-size: calc(var(--gauge-circle-size) / 2.7);
   --plugin-icon-size: 65%;
   --pwa-icon-margin: 0 6px 0 -2px;
-  --pwa-icon-size: var(--topbar-icon-size);
+  --pwa-icon-size: var(--topbar-logo-size);
   --score-container-padding: 8px;
-  --score-container-width: 148px;
-  --score-number-font-size-big: 38px;
-  --score-number-font-size: 28px;
-  --score-shape-margin-left: 4px;
-  --score-shape-margin-right: 12px;
-  --score-shape-margin: 0 var(--score-shape-margin-right) 0 var(--score-shape-margin-left);
-  --score-shape-size: 12px;
-  --score-title-font-size-big: 28px;
-  --score-title-font-size: 20px;
-  --score-title-line-height-big: 36px;
-  --score-title-line-height: 26px;
+  --gauge-wrapper-width: 148px;
+  --gauge-percentage-font-size-big: 38px;
+  --gauge-percentage-font-size: 28px;
+  --score-icon-margin-left: 4px;
+  --score-icon-margin-right: 12px;
+  --score-icon-margin: 0 var(--score-icon-margin-right) 0 var(--score-icon-margin-left);
+  --score-icon-size: 12px;
+  --gauge-label-font-size-big: 28px;
+  --gauge-label-font-size: 20px;
+  --gauge-label-line-height-big: 36px;
+  --gauge-label-line-height: 26px;
   --scorescale-height: 6px;
   --scorescale-width: 18px;
-  --section-padding: 40px;
-  --topbar-bg: var(--color-black-100);
+  --category-padding: 40px;
+  --topbar-background-color: var(--color-gray-100);
   --topbar-height: 32px;
-  --topbar-icon-size: 24px;
+  --topbar-logo-size: 24px;
   --topbar-padding: 0 8px;
-  --metrics-toggle-color: var(--color-black-200);
+  --metrics-toggle-background-color: var(--color-gray-200);
 
   --color-average-secondary: var(--color-orange-700);
   --color-average: var(--color-orange);
@@ -117,11 +133,11 @@
   --color-fail: var(--color-red);
   --color-pass-secondary: var(--color-green-700);
   --color-pass: var(--color-green);
-  --color-sticky-header-bg: var(--body-background-color);
-  --color-highlighter-bg: var(--body-text-color);
+  --sticky-header-background-color: var(--report-background-color);
+  --highlighter-background-color: var(--report-text-color);
 
   --color-hover: #FAFAFA;
-  --color-metric-toggle-lines: #7F7F7F;
+  --metric-toggle-lines-fill: #7F7F7F;
 
   --plugin-icon-url: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="24px" height="24px" viewBox="0 0 24 24" fill="%23757575"><path d="M0 0h24v24H0z" fill="none"/><path d="M20.5 11H19V7c0-1.1-.9-2-2-2h-4V3.5C13 2.12 11.88 1 10.5 1S8 2.12 8 3.5V5H4c-1.1 0-1.99.9-1.99 2v3.8H3.5c1.49 0 2.7 1.21 2.7 2.7s-1.21 2.7-2.7 2.7H2V20c0 1.1.9 2 2 2h3.8v-1.5c0-1.49 1.21-2.7 2.7-2.7 1.49 0 2.7 1.21 2.7 2.7V22H17c1.1 0 2-.9 2-2v-4h1.5c1.38 0 2.5-1.12 2.5-2.5S21.88 11 20.5 11z"/></svg>');
   --plugin-icon-url-dark: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="24px" height="24px" viewBox="0 0 24 24" fill="%23FFFFFF"><path d="M0 0h24v24H0z" fill="none"/><path d="M20.5 11H19V7c0-1.1-.9-2-2-2h-4V3.5C13 2.12 11.88 1 10.5 1S8 2.12 8 3.5V5H4c-1.1 0-1.99.9-1.99 2v3.8H3.5c1.49 0 2.7 1.21 2.7 2.7s-1.21 2.7-2.7 2.7H2V20c0 1.1.9 2 2 2h3.8v-1.5c0-1.49 1.21-2.7 2.7-2.7 1.49 0 2.7 1.21 2.7 2.7V22H17c1.1 0 2-.9 2-2v-4h1.5c1.38 0 2.5-1.12 2.5-2.5S21.88 11 20.5 11z"/></svg>');
@@ -149,29 +165,28 @@
     --color-green-700: var(--color-green);
     --color-teal-600: var(--color-cyan-500);
     --color-orange-700: var(--color-orange);
-  
-    --color-black-200: var(--color-black-800);
-    --color-black-400: var(--color-black-600);
-    --color-black-600: var(--color-black-500);
-  
-    --topbar-bg: var(--color-black);
-    --plugin-badge-bg: var(--color-black-800);
-    --env-item-bg: var(--color-black);
-    --report-secondary-border-color: var(--color-black-200);
-  
-    --body-background-color: var(--color-black-900);
-    --body-text-color: var(--color-black-100);
-    --secondary-text-color: var(--color-black-400);
-  
+
+    --color-gray-200: var(--color-gray-800);
+    --color-gray-400: var(--color-gray-600);
+    --color-gray-600: var(--color-gray-500);
+
+    --topbar-background-color: var(--color-gray);
+    --plugin-badge-background-color: var(--color-gray-800);
+    --env-item-background-color: var(--color-gray);
+    --report-secondary-border-color: var(--color-gray-200);
+
+    --report-background-color: var(--color-gray-900);
+    --report-text-color: var(--color-gray-100);
+    --secondary-text-color: var(--color-gray-400);
+
     --plugin-icon-url: var(--plugin-icon-url-dark);
-  
+
     --informative-color: var(--color-blue-200);
-  
-    --medium-50-gray: #757575;
-    --medium-75-gray: var(--color-white);
-  
+
+    --color-gray-50: #757575;
+
     --color-hover: rgba(0, 0, 0, 0.2);
-  
+
     --pwa-fast-reliable-gray-url: var(--pwa-fast-reliable-gray-url-dark);
     --pwa-installable-gray-url: var(--pwa-installable-gray-url-dark);
     --pwa-optimized-gray-url: var(--pwa-optimized-gray-url-dark);
@@ -180,27 +195,27 @@
 
 @media only screen and (max-width: 480px) {
   .lh-vars {
-    --audits-margin-bottom: 20px;
-    --body-font-size: 14px;
-    --body-line-height: 20px;
+    --audit-group-margin-bottom: 20px;
+    --report-font-size: 14px;
+    --report-line-height: 20px;
     --env-name-min-width: 120px;
     --gauge-circle-size-big: 96px;
     --gauge-circle-size: 72px;
     --header-padding: 16px 0 16px 0;
     --plugin-icon-size: 75%;
     --pwa-icon-margin: 0 7px 0 -3px;
-    --score-container-width: 112px;
-    --score-number-font-size-big: 34px;
-    --score-number-font-size: 26px;
-    --score-shape-margin-left: 2px;
-    --score-shape-size: 10px;
-    --score-title-font-size-big: 22px;
-    --score-title-font-size: 14px;
-    --score-title-line-height-big: 26px;
-    --score-title-line-height: 20px;
-    --section-padding: 24px;
+    --gauge-wrapper-width: 112px;
+    --gauge-percentage-font-size-big: 34px;
+    --gauge-percentage-font-size: 26px;
+    --score-icon-margin-left: 2px;
+    --score-icon-size: 10px;
+    --gauge-label-font-size-big: 22px;
+    --gauge-label-font-size: 14px;
+    --gauge-label-line-height-big: 26px;
+    --gauge-label-line-height: 20px;
+    --category-padding: 24px;
     --topbar-height: 28px;
-    --topbar-icon-size: 20px;
+    --topbar-logo-size: 20px;
   }
 
   /* Not enough space to adequately show the relative savings bars. */
@@ -212,36 +227,36 @@
 .lh-vars.lh-devtools {
   --text-font-family: '.SFNSDisplay-Regular', 'Helvetica Neue', 'Lucida Grande', sans-serif;
   --monospace-font-family: 'Menlo', 'dejavu sans mono', 'Consolas', 'Lucida Console', monospace;
-  --body-font-size: 12px;
-  --body-line-height: 20px;
-  --header-font-size: 16px;
+  --report-font-size: 12px;
+  --report-line-height: 20px;
+  --category-header-font-size: 16px;
   --header-line-height: 20px;
-  --caption-line-height: 14px;
+  --audit-explanation-line-height: 14px;
   --default-padding: 12px;
-  --section-padding: 12px;
-  --section-indent: 8px;
+  --category-padding: 12px;
+  --footer-padding-vertical: 8px;
 
   --gauge-circle-size-big: 72px;
   --gauge-circle-size: 64px;
 
-  --audits-margin-bottom: 20px;
+  --audit-group-margin-bottom: 20px;
   --env-name-min-width: 120px;
   --header-padding: 16px 0 16px 0;
   --plugin-icon-size: 75%;
   --pwa-icon-margin: 0 7px 0 -3px;
-  --score-container-width: 97px;
-  --score-number-font-size-big: 34px;
-  --score-number-font-size: 26px;
-  --score-shape-margin-left: 2px;
-  --score-shape-size: 10px;
-  --score-title-font-size-big: 22px;
-  --score-title-font-size: 14px;
-  --score-title-line-height-big: 26px;
-  --score-title-line-height: 20px;
+  --gauge-wrapper-width: 97px;
+  --gauge-percentage-font-size-big: 34px;
+  --gauge-percentage-font-size: 26px;
+  --score-icon-margin-left: 2px;
+  --score-icon-size: 10px;
+  --gauge-label-font-size-big: 22px;
+  --gauge-label-font-size: 14px;
+  --gauge-label-line-height-big: 26px;
+  --gauge-label-line-height: 20px;
 
-  --lh-audit-vpadding: 4px;
-  --lh-audit-group-vpadding: 12px;
-  --lh-section-vpadding: 8px;
+  --audit-padding-vertical: 4px;
+  --audit-group-padding-vertical: 12px;
+  --section-padding-vertical: 8px;
 }
 
 .lh-devtools.lh-root {
@@ -268,12 +283,12 @@
 
 .lh-root {
   font-family: var(--text-font-family);
-  font-size: var(--body-font-size);
+  font-size: var(--report-font-size);
   margin: 0;
-  line-height: var(--body-line-height);
-  background: var(--body-background-color);
+  line-height: var(--report-line-height);
+  background: var(--report-background-color);
   scroll-behavior: smooth;
-  color: var(--body-text-color);
+  color: var(--report-text-color);
 }
 
 .lh-root :focus {
@@ -321,18 +336,18 @@
 }
 
 .lh-audit__description, .lh-audit__stackpack {
-  --inner-audit-right-padding: calc(var(--text-indent) + 2px);
-  padding-left: var(--inner-audit-left-padding);
-  padding-right: var(--inner-audit-right-padding);
+  --inner-audit-padding-right: var(--stackpack-padding-horizontal);
+  padding-left: var(--audit-description-padding-left);
+  padding-right: var(--inner-audit-padding-right);
   padding-top: 8px;
   padding-bottom: 8px;
 }
 
 .lh-details {
-  font-size: var(--body-font-size);
+  font-size: var(--report-font-size);
   margin-top: var(--default-padding);
   margin-bottom: var(--default-padding);
-  margin-left: var(--inner-audit-left-padding);
+  margin-left: var(--audit-description-padding-left);
   /* whatever the .lh-details side margins are */
   width: 100%;
 }
@@ -391,9 +406,9 @@
 /* Score */
 
 .lh-audit__score-icon {
-  width: var(--score-shape-size);
-  height: var(--score-shape-size);
-  margin: var(--score-shape-margin);
+  width: var(--score-icon-size);
+  height: var(--score-icon-size);
+  margin: var(--score-icon-margin);
 }
 
 .lh-audit--pass .lh-audit__display-text {
@@ -417,19 +432,19 @@
   color: var(--color-fail-secondary);
 }
 .lh-audit--fail .lh-audit__score-icon {
-  border-left: calc(var(--score-shape-size) / 2) solid transparent;
-  border-right: calc(var(--score-shape-size) / 2) solid transparent;
-  border-bottom: var(--score-shape-size) solid var(--color-fail);
+  border-left: calc(var(--score-icon-size) / 2) solid transparent;
+  border-right: calc(var(--score-icon-size) / 2) solid transparent;
+  border-bottom: var(--score-icon-size) solid var(--color-fail);
 }
 
 .lh-audit--manual .lh-audit__display-text,
 .lh-audit--notapplicable .lh-audit__display-text {
-  color: var(--color-black-600);
+  color: var(--color-gray-600);
 }
 .lh-audit--manual .lh-audit__score-icon,
 .lh-audit--notapplicable .lh-audit__score-icon {
   border-radius: 100%;
-  background: var(--color-black-400);
+  background: var(--color-gray-400);
 }
 
 .lh-audit--error .lh-audit__score-icon {
@@ -437,13 +452,13 @@
 }
 
 .lh-audit--informative .lh-audit__display-text {
-  color: var(--color-black-600);
+  color: var(--color-gray-600);
 }
 
 .lh-audit--informative .lh-audit__score-icon {
   border: none;
   border-radius: 100%;
-  background: var(--color-black-400);
+  background: var(--color-gray-400);
 }
 
 .lh-audit__description,
@@ -451,7 +466,7 @@
   color: var(--secondary-text-color);
 }
 .lh-category-header__description  {
-  font-size: var(--body-font-size);
+  font-size: var(--report-font-size);
   text-align: center;
   margin: 0px auto;
   max-width: 400px;
@@ -461,7 +476,7 @@
 .lh-audit__display-text,
 .lh-load-opportunity__sparkline,
 .lh-chevron-container {
-  margin: 0 var(--audit-item-gap);
+  margin: 0 var(--audit-margin-horizontal);
 }
 .lh-chevron-container {
   margin-right: 0;
@@ -474,7 +489,7 @@
 /* Prepend display text with em dash separator. But not in Opportunities. */
 .lh-audit__display-text:not(:empty):before {
   content: '—';
-  margin-right: var(--audit-item-gap);
+  margin-right: var(--audit-margin-horizontal);
 }
 .lh-audit-group.lh-audit-group--load-opportunities .lh-audit__display-text:not(:empty):before {
   display: none;
@@ -485,7 +500,7 @@
   display: flex;
   align-items: center;
   font-weight: 500;
-  padding: var(--lh-audit-vpadding) 0;
+  padding: var(--audit-padding-vertical) 0;
 }
 
 .lh-audit--load-opportunity .lh-audit__header {
@@ -575,14 +590,14 @@
 }
 
 .lh-metrics__disclaimer {
-  color: var(--medium-75-gray);
-  margin: var(--lh-section-vpadding) 0;
+  color: var(--color-gray-600);
+  margin: var(--section-padding-vertical) 0;
 }
 
 .lh-metric__description {
   display: none;
   color: var(--secondary-text-color);
-  padding: var(--expandable-padding);
+  padding: var(--metric-description-padding);
 }
 
 .lh-metric__value {
@@ -628,15 +643,15 @@
 }
 .lh-metrics-toggle__input:not(:checked) + label .lh-metrics-toggle__icon--less,
 .lh-metrics-toggle__input:checked + label .lh-metrics-toggle__icon--more {
-  background-color: var(--color-blue);
-  --color-metric-toggle-lines: var(--color-white);
+  background-color: var(--color-blue-A700);
+  --metric-toggle-lines-fill: var(--color-white);
 }
 .lh-metrics-toggle__lines {
-  fill: var(--color-metric-toggle-lines);
+  fill: var(--metric-toggle-lines-fill);
 }
 
 .lh-metrics-toggle__label  {
-  background-color: var(--metrics-toggle-color);
+  background-color: var(--metrics-toggle-background-color);
 }
 
 .lh-metrics-toggle__label .lh-metrics-toggle__icon--less {
@@ -656,10 +671,10 @@
 
 .lh-metric .lh-metric__innerwrap::before {
   content: '';
-  width: var(--score-shape-size);
-  height: var(--score-shape-size);
+  width: var(--score-icon-size);
+  height: var(--score-icon-size);
   display: inline-block;
-  margin: var(--score-shape-margin);
+  margin: var(--score-icon-margin);
 }
 
 .lh-metric--pass .lh-metric__value {
@@ -683,9 +698,9 @@
   color: var(--color-fail-secondary);
 }
 .lh-metric--fail .lh-metric__innerwrap::before {
-  border-left: calc(var(--score-shape-size) / 2) solid transparent;
-  border-right: calc(var(--score-shape-size) / 2) solid transparent;
-  border-bottom: var(--score-shape-size) solid var(--color-fail);
+  border-left: calc(var(--score-icon-size) / 2) solid transparent;
+  border-right: calc(var(--score-icon-size) / 2) solid transparent;
+  border-bottom: var(--score-icon-size) solid var(--color-fail);
 }
 
 .lh-metric--error .lh-metric__value,
@@ -706,9 +721,9 @@
 }
 
 .lh-load-opportunity__header .lh-load-opportunity__col {
-  color: var(--medium-75-gray);
+  color: var(--color-gray-600);
   display: unset;
-  line-height: calc(2.3 * var(--body-font-size));
+  line-height: calc(2.3 * var(--report-font-size));
 }
 
 .lh-load-opportunity__col {
@@ -727,7 +742,7 @@
 
 .lh-audit--load-opportunity .lh-audit__display-text {
   text-align: right;
-  flex: 0 0 calc(3 * var(--body-font-size));
+  flex: 0 0 calc(3 * var(--report-font-size));
 }
 
 
@@ -735,11 +750,11 @@
 
 .lh-load-opportunity__sparkline {
   flex: 1;
-  margin-top: calc((var(--body-line-height) - var(--lh-sparkline-height)) / 2);
+  margin-top: calc((var(--report-line-height) - var(--sparkline-height)) / 2);
 }
 
 .lh-sparkline {
-  height: var(--lh-sparkline-height);
+  height: var(--sparkline-height);
   width: 100%;
 }
 
@@ -823,7 +838,7 @@
 /* Audit Group */
 
 .lh-audit-group {
-  margin-bottom: var(--audits-margin-bottom);
+  margin-bottom: var(--audit-group-margin-bottom);
   position: relative;
 }
 
@@ -882,22 +897,21 @@
 .lh-audit-group__summary {
   display: flex;
   justify-content: space-between;
-  padding-right: var(--text-indent);
-  margin-top: calc(var(--section-padding) * 1.5);
-  margin-bottom: var(--section-padding);
+  margin-top: calc(var(--category-padding) * 1.5);
+  margin-bottom: var(--category-padding);
 }
 
 .lh-audit-group__itemcount {
-  color: var(--color-black-600);
+  color: var(--color-gray-600);
   font-weight: bold;
 }
 .lh-audit-group__header .lh-chevron {
-  margin-top: calc((var(--body-line-height) - 5px) / 2);
+  margin-top: calc((var(--report-line-height) - 5px) / 2);
 }
 
 .lh-audit-group__header {
-  font-size: var(--body-font-size);
-  margin: 0 0 var(--lh-audit-group-vpadding);
+  font-size: var(--report-font-size);
+  margin: 0 0 var(--audit-group-padding-vertical);
   /* When the header takes 100% width, the chevron becomes small. */
   max-width: calc(100% - var(--chevron-size));
 }
@@ -912,16 +926,16 @@
 
 .lh-audit-group__header span.lh-audit-group__itemcount {
   font-weight: bold;
-  color: var(--color-black-600);
+  color: var(--color-gray-600);
 }
 
 .lh-audit-group__header span.lh-audit-group__description {
   font-weight: 500;
-  color: var(--color-black-600);
+  color: var(--color-gray-600);
 }
 .lh-audit-group__header span.lh-audit-group__description::before {
   content: '—';
-  margin: 0px var(--audit-item-gap);
+  margin: 0px var(--audit-margin-horizontal);
 }
 
 .lh-clump > .lh-audit-group__header,
@@ -931,12 +945,12 @@
 .lh-audit-group--pwa-fast-reliable .lh-audit-group__header,
 .lh-audit-group--pwa-installable .lh-audit-group__header,
 .lh-audit-group--pwa-optimized .lh-audit-group__header {
-  margin-top: var(--lh-audit-group-vpadding);
+  margin-top: var(--audit-group-padding-vertical);
 }
 
 .lh-audit-explanation {
-  margin: var(--lh-audit-vpadding) 0 calc(var(--lh-audit-vpadding) / 2);
-  line-height: var(--caption-line-height);
+  margin: var(--audit-padding-vertical) 0 calc(var(--audit-padding-vertical) / 2);
+  line-height: var(--audit-explanation-line-height);
 }
 
 .lh-audit--fail .lh-audit-explanation {
@@ -970,10 +984,10 @@
 }
 
 .lh-warnings {
-  --item-margin: calc(var(--body-line-height) / 6);
+  --item-margin: calc(var(--report-line-height) / 6);
   color: var(--color-average);
-  margin: var(--lh-audit-vpadding) 0;
-  padding: calc(var(--lh-audit-vpadding) / 2) var(--lh-audit-vpadding);
+  margin: var(--audit-padding-vertical) 0;
+  padding: calc(var(--audit-padding-vertical) / 2) var(--audit-padding-vertical);
 }
 .lh-warnings span {
   font-weight: bold;
@@ -982,11 +996,11 @@
 .lh-warnings--toplevel {
   --item-margin: calc(var(--header-line-height) / 4);
   color: var(--secondary-text-color);
-  margin: var(--section-padding);
-  padding: var(--section-padding);
+  margin: var(--category-padding);
+  padding: var(--category-padding);
 }
 .lh-warnings ul {
-  padding-left: calc(var(--section-padding) * 2);
+  padding-left: calc(var(--category-padding) * 2);
   margin: 0;
 }
 .lh-warnings li {
@@ -1062,7 +1076,7 @@
 .lh-gauge__wrapper--plugin .lh-gauge__svg-wrapper::before {
   width: var(--plugin-badge-size);
   height: var(--plugin-badge-size);
-  background-color: var(--plugin-badge-bg);
+  background-color: var(--plugin-badge-background-color);
   background-image: var(--plugin-icon-url);
   background-repeat: no-repeat;
   background-size: var(--plugin-icon-size);
@@ -1098,7 +1112,7 @@
 
 .lh-category .lh-gauge__percentage {
   --gauge-circle-size: var(--gauge-circle-size-big);
-  --score-number-font-size: var(--score-number-font-size-big);
+  --gauge-percentage-font-size: var(--gauge-percentage-font-size-big);
 }
 
 .lh-gauge__wrapper {
@@ -1118,17 +1132,17 @@
 }
 
 .lh-gauge__label {
-  font-size: var(--score-title-font-size);
-  line-height: var(--score-title-line-height);
+  font-size: var(--gauge-label-font-size);
+  line-height: var(--gauge-label-line-height);
   margin-top: 10px;
   text-align: center;
-  color: var(--body-text-color);
+  color: var(--report-text-color);
 }
 
 /* TODO(#8185) use more BEM (.lh-gauge__label--big) instead of relying on descendant selector */
 .lh-category .lh-gauge__label {
-  --score-title-font-size: var(--score-title-font-size-big);
-  --score-title-line-height: var(--score-title-line-height-big);
+  --gauge-label-font-size: var(--gauge-label-font-size-big);
+  --gauge-label-line-height: var(--gauge-label-line-height-big);
   margin-top: 14px;
 }
 
@@ -1137,7 +1151,7 @@
 .lh-scores-header .lh-gauge--pwa__wrapper,
 .lh-sticky-header .lh-gauge__wrapper,
 .lh-sticky-header .lh-gauge--pwa__wrapper {
-  width: var(--score-container-width);
+  width: var(--gauge-wrapper-width);
 }
 
 .lh-scores-header .lh-gauge--pwa__wrapper {
@@ -1148,7 +1162,7 @@
 .lh-scorescale {
   display: inline-flex;
   margin: 12px auto 0 auto;
-  border: 1px solid var(--color-black-200);
+  border: 1px solid var(--color-gray-200);
   border-radius: 20px;
   padding: 8px 8px;
 }
@@ -1194,17 +1208,17 @@
 }
 
 .lh-category {
-  padding: var(--section-padding);
+  padding: var(--category-padding);
   max-width: var(--report-width);
   margin: 0 auto;
 }
 
 .lh-category-wrapper {
-  border-bottom: 1px solid var(--color-black-200);
+  border-bottom: 1px solid var(--color-gray-200);
 }
 
 .lh-category-wrapper:first-of-type {
-  border-top: 1px solid var(--color-black-200);
+  border-top: 1px solid var(--color-gray-200);
 }
 
 /* section hash link jump should preserve fixed header
@@ -1220,9 +1234,9 @@
 }
 
 .lh-category-header {
-  font-size: var(--header-font-size);
+  font-size: var(--category-header-font-size);
   min-height: var(--gauge-circle-size);
-  margin-bottom: var(--lh-section-vpadding);
+  margin-bottom: var(--section-padding-vertical);
 }
 
 .lh-category-header .lh-score__gauge {
@@ -1232,7 +1246,7 @@
 }
 
 .lh-category-header .lh-audit__title {
-  font-size: var(--header-font-size);
+  font-size: var(--category-header-font-size);
   line-height: var(--header-line-height);
 }
 
@@ -1289,18 +1303,18 @@
   --image-preview-size: 24px;
   border-collapse: collapse;
   /* Can't assign padding to table, so shorten the width instead. */
-  width: calc(100% - var(--inner-audit-left-padding));
+  width: calc(100% - var(--audit-description-padding-left));
 }
 
 .lh-table thead th {
   font-weight: normal;
-  color: var(--color-black-600);
+  color: var(--color-gray-600);
   /* See text-wrapping comment on .lh-container. */
   word-break: normal;
 }
 
 .lh-table tbody tr:nth-child(odd) {
-  background-color: var(--lh-table-higlight-bg);
+  background-color: var(--table-higlight-background-color);
 }
 
 .lh-table th,
@@ -1361,7 +1375,7 @@
 }
 
 .lh-text__url-host {
-  margin-left: calc(var(--body-font-size) / 2);
+  margin-left: calc(var(--report-font-size) / 2);
   opacity: 0.6;
   font-size: 90%
 }
@@ -1381,15 +1395,15 @@
   --chevron-angle-right: -42deg;
   width: var(--chevron-size);
   height: var(--chevron-size);
-  margin-top: calc((var(--body-line-height) - 12px) / 2);
+  margin-top: calc((var(--report-line-height) - 12px) / 2);
 }
 
 .lh-chevron__lines {
   transition: transform 0.4s;
-  transform: translateY(var(--body-line-height));
+  transform: translateY(var(--report-line-height));
 }
 .lh-chevron__line {
- stroke: var(--display-value-gray);
+ stroke: var(--chevron-line-stroke);
  stroke-width: var(--chevron-size);
  stroke-linecap: square;
  transform-origin: 50%;
diff --git a/lighthouse-core/report/html/templates.html b/lighthouse-core/report/html/templates.html
index 11d1d78e05fd..b4097829d9cc 100644
--- a/lighthouse-core/report/html/templates.html
+++ b/lighthouse-core/report/html/templates.html
@@ -159,7 +159,7 @@
     .lh-scores-container {
       display: flex;
       flex-direction: column;
-      padding: var(--header-padding);
+      padding: var(--scores-container-padding);
       position: relative;
       width: 100%;
     }
@@ -168,8 +168,8 @@
       --gauge-circle-size: 36px;
       --plugin-badge-size: 18px;
       --plugin-icon-size: 75%;
-      --score-container-width: 60px;
-      --score-number-font-size: 13px;
+      --gauge-wrapper-width: 60px;
+      --gauge-percentage-font-size: 13px;
       position: sticky;
       left: 0;
       right: 0;
@@ -177,8 +177,8 @@
       font-weight: 700;
       display: none;
       justify-content: center;
-      background-color: var(--color-sticky-header-bg);
-      border-bottom: 1px solid var(--color-black-200);
+      background-color: var(--sticky-header-background-color);
+      border-bottom: 1px solid var(--color-gray-200);
       padding-top: var(--score-container-padding);
       padding-bottom: 4px;
       z-index: 1;
@@ -202,9 +202,9 @@
     }
 
     .lh-highlighter {
-      width: var(--score-container-width);
+      width: var(--gauge-wrapper-width);
       height: 1px;
-      background: var(--color-highlighter-bg);
+      background-color: var(--highlighter-background-color);
       /* Position at bottom of first gauge in sticky header. */
       position: absolute;
       grid-column: 1;
@@ -237,23 +237,23 @@
       display: flex;
       align-items: center;
       height: var(--topbar-height);
-      background-color: var(--topbar-bg);
+      background-color: var(--topbar-background-color);
       padding: var(--topbar-padding);
     }
 
     .lh-topbar__logo {
-      width: var(--topbar-icon-size);
-      height: var(--topbar-icon-size);
+      width: var(--topbar-logo-size);
+      height: var(--topbar-logo-size);
       user-select: none;
     }
     .lh-topbar__logo .shape {
-      fill: var(--body-text-color);
+      fill: var(--report-text-color);
     }
 
     .lh-topbar__url {
       margin: var(--topbar-padding);
       text-decoration: none;
-      color: var(--body-text-color);
+      color: var(--report-text-color);
     }
 
     .lh-tools {
@@ -261,8 +261,8 @@
       will-change: transform;
     }
     .lh-tools__button {
-      width: var(--lh-tools-icon-size);
-      height: var(--lh-tools-icon-size);
+      width: var(--tools-icon-size);
+      height: var(--tools-icon-size);
       cursor: pointer;
       margin-right: 5px;
       /* This is actually a button element, but we want to style it like a transparent div. */
@@ -275,7 +275,7 @@
       outline: inherit;
     }
     .lh-tools__button svg {
-      fill: var(--lh-tools-icon-color);
+      fill: var(--tools-icon-color);
     }
     .dark .lh-tools__button svg {
       filter: invert(1);
@@ -287,7 +287,7 @@
     }
     .lh-tools__dropdown {
       position: absolute;
-      background-color: var(--body-background-color);
+      background-color: var(--report-background-color);
       border: 1px solid var(--report-border-color);
       border-radius: 3px;
       padding: calc(var(--default-padding) / 2) 0;
@@ -311,7 +311,7 @@
     }
     .lh-tools__dropdown a:hover,
     .lh-tools__dropdown a:focus {
-      background-color: var(--color-black-200);
+      background-color: var(--color-gray-200);
       outline: none;
     }
     .lh-tools__dropdown .report-icon {
@@ -323,7 +323,7 @@
       text-indent: 18px;
     }
     .dark .report-icon {
-      color: var(--color-black-900);
+      color: var(--color-gray-900);
       filter: invert(1);
     }
     .dark .lh-tools__dropdown a:hover,
@@ -494,7 +494,7 @@
 <template id="tmpl-lh-footer">
   <style>
     .lh-footer {
-      padding: var(--section-indent) calc(var(--default-padding) * 2);
+      padding: var(--footer-padding-vertical) calc(var(--default-padding) * 2);
       max-width: var(--report-width);
       margin: 0 auto;
     }
@@ -502,8 +502,8 @@
       text-align: center;
     }
     .lh-env__title {
-      font-size: var(--score-title-font-size-big);
-      line-height: var(--score-title-line-height-big);
+      font-size: var(--env-item-font-size-big);
+      line-height: var(--env-item-line-height-big);
       text-align: center;
       padding: var(--score-container-padding);
     }
@@ -516,11 +516,11 @@
       padding: 0;
     }
     .lh-env__items .lh-env__item:nth-child(2n) {
-      background: var(--env-item-bg);
+      background-color: var(--env-item-background-color);
     }
     .lh-env__item {
       display: flex;
-      padding: var(--env-tem-padding);
+      padding: var(--env-item-padding);
       position: relative;
     }
     span.lh-env__name {
@@ -584,7 +584,7 @@
     }
 
     .lh-gauge--pwa__disc {
-      fill: var(--color-black-200);
+      fill: var(--color-gray-200);
     }
 
     .lh-gauge--pwa__logo--primary-color {
@@ -782,8 +782,8 @@
 <template id="tmpl-lh-3p-filter">
   <style>
     .lh-3p-filter {
-      background: var(--lh-table-higlight-bg);
-      color: var(--medium-75-gray);
+      background-color: var(--table-higlight-background-color);
+      color: var(--color-gray-600);
       float: right;
       padding: 6px;
     }
@@ -815,8 +815,8 @@
           overflow: hidden;
           padding: 10px;
           border-bottom: none;
-          color: var(--subheader-color);
-          background: var(--medium-50-gray);
+          color: var(--snippet-color);
+          background-color: var(--snippet-background-color);
           border: 1px solid var(--report-secondary-border-color);
         }
         .lh-snippet__title {
@@ -898,8 +898,8 @@
           display: inline-block;
           vertical-align: middle;
           margin-right: 4px;
-          width: var(--score-shape-size);
-          height: var(--score-shape-size);
+          width: var(--score-icon-size);
+          height: var(--score-icon-size);
           background-image: var(--fail-icon-url);
         }
         .lh-snippet__line-number {
@@ -909,7 +909,7 @@
           font-family: monospace;
           padding-right: 5px;
           margin-right: 5px;
-          color: var(--medium-75-gray);
+          color: var(--color-gray-600);
           user-select: none;
         }
       </style>

From abf27d41282c769b6ada43cffed1106a5fe5d5dd Mon Sep 17 00:00:00 2001
From: Brendan Kenny <bckenny@gmail.com>
Date: Mon, 17 Jun 2019 22:22:32 -0700
Subject: [PATCH 045/110] tests: clean up crufty gather-runner tests (#9227)

---
 .../test/gather/gather-runner-test.js         | 294 +++++++++---------
 1 file changed, 155 insertions(+), 139 deletions(-)

diff --git a/lighthouse-core/test/gather/gather-runner-test.js b/lighthouse-core/test/gather/gather-runner-test.js
index 234bd7fd776a..1bd47cb233c5 100644
--- a/lighthouse-core/test/gather/gather-runner-test.js
+++ b/lighthouse-core/test/gather/gather-runner-test.js
@@ -135,34 +135,31 @@ describe('GatherRunner', function() {
   });
 
   it('collects benchmark as an artifact', async () => {
-    const url = 'https://example.com';
+    const requestedUrl = 'https://example.com';
     const driver = fakeDriver;
-    const config = new Config({});
-    const settings = {};
-    const options = {url, driver, config, settings};
+    const config = new Config({passes: []});
+    const options = {requestedUrl, driver, settings: config.settings};
 
-    const results = await GatherRunner.run([], options);
+    const results = await GatherRunner.run(config.passes, options);
     expect(Number.isFinite(results.BenchmarkIndex)).toBeTruthy();
   });
 
   it('collects host user agent as an artifact', async () => {
-    const url = 'https://example.com';
+    const requestedUrl = 'https://example.com';
     const driver = fakeDriver;
-    const config = new Config({});
-    const settings = {};
-    const options = {url, driver, config, settings};
+    const config = new Config({passes: []});
+    const options = {requestedUrl, driver, settings: config.settings};
 
-    const results = await GatherRunner.run([], options);
+    const results = await GatherRunner.run(config.passes, options);
     expect(results.HostUserAgent).toEqual(fakeDriver.protocolGetVersionResponse.userAgent);
     expect(results.HostUserAgent).toMatch(/Chrome\/\d+/);
   });
 
   it('collects network user agent as an artifact', async () => {
-    const url = 'https://example.com';
+    const requestedUrl = 'https://example.com';
     const driver = fakeDriver;
     const config = new Config({passes: [{}]});
-    const settings = {};
-    const options = {url, driver, config, settings};
+    const options = {requestedUrl, driver, settings: config.settings};
 
     const results = await GatherRunner.run(config.passes, options);
     expect(results.NetworkUserAgent).toContain('Mozilla');
@@ -177,8 +174,7 @@ describe('GatherRunner', function() {
       },
     });
     const config = new Config({passes: [{}]});
-    const settings = {};
-    const options = {requestedUrl, driver, config, settings};
+    const options = {requestedUrl, driver, settings: config.settings};
 
     return GatherRunner.run(config.passes, options).then(artifacts => {
       assert.deepStrictEqual(artifacts.URL, {requestedUrl, finalUrl},
@@ -187,13 +183,15 @@ describe('GatherRunner', function() {
   });
 
   describe('collects TestedAsMobileDevice as an artifact', () => {
-    const url = 'https://example.com';
+    const requestedUrl = 'https://example.com';
 
     it('works when running on desktop device without emulation', async () => {
       const driver = fakeDriver;
-      const config = new Config({passes: [{}]});
-      const settings = {};
-      const options = {url, driver, config, settings};
+      const config = new Config({
+        passes: [],
+        settings: {emulatedFormFactor: 'none'},
+      });
+      const options = {requestedUrl, driver, settings: config.settings};
 
       const results = await GatherRunner.run(config.passes, options);
       expect(results.TestedAsMobileDevice).toBe(false);
@@ -201,9 +199,11 @@ describe('GatherRunner', function() {
 
     it('works when running on desktop device with mobile emulation', async () => {
       const driver = fakeDriver;
-      const config = new Config({passes: [{}]});
-      const settings = {emulatedFormFactor: 'mobile'};
-      const options = {url, driver, config, settings};
+      const config = new Config({
+        passes: [],
+        settings: {emulatedFormFactor: 'mobile'},
+      });
+      const options = {requestedUrl, driver, settings: config.settings};
 
       const results = await GatherRunner.run(config.passes, options);
       expect(results.TestedAsMobileDevice).toBe(true);
@@ -211,9 +211,11 @@ describe('GatherRunner', function() {
 
     it('works when running on mobile device without emulation', async () => {
       const driver = fakeDriverUsingRealMobileDevice;
-      const config = new Config({passes: [{}]});
-      const settings = {};
-      const options = {url, driver, config, settings};
+      const config = new Config({
+        passes: [],
+        settings: {emulatedFormFactor: 'none'},
+      });
+      const options = {requestedUrl, driver, settings: config.settings};
 
       const results = await GatherRunner.run(config.passes, options);
       expect(results.TestedAsMobileDevice).toBe(true);
@@ -221,9 +223,11 @@ describe('GatherRunner', function() {
 
     it('works when running on mobile device with desktop emulation', async () => {
       const driver = fakeDriverUsingRealMobileDevice;
-      const config = new Config({passes: [{}]});
-      const settings = {emulatedFormFactor: 'desktop'};
-      const options = {url, driver, config, settings};
+      const config = new Config({
+        passes: [],
+        settings: {emulatedFormFactor: 'desktop'},
+      });
+      const options = {requestedUrl, driver, settings: config.settings};
 
       const results = await GatherRunner.run(config.passes, options);
       expect(results.TestedAsMobileDevice).toBe(false);
@@ -416,7 +420,7 @@ describe('GatherRunner', function() {
       baseArtifacts: await GatherRunner.initializeBaseArtifacts({driver, settings, requestedUrl}),
     };
 
-    await GatherRunner.runPass(passContext, {TestGatherer: []});
+    await GatherRunner.runPass(passContext);
     assert.equal(tests.calledCleanBrowserCaches, true);
   });
 
@@ -588,9 +592,6 @@ describe('GatherRunner', function() {
       beginDevtoolsLog() {
         return Promise.resolve();
       },
-      gotoURL() {
-        return Promise.resolve();
-      },
     };
 
     const passConfig = {
@@ -601,7 +602,7 @@ describe('GatherRunner', function() {
     };
     const settings = {};
 
-    await GatherRunner.beginRecording({driver, passConfig, settings}, {TestGatherer: []});
+    await GatherRunner.beginRecording({driver, passConfig, settings});
     assert.equal(calledTrace, true);
   });
 
@@ -649,7 +650,7 @@ describe('GatherRunner', function() {
     };
     const settings = {};
 
-    await GatherRunner.beginRecording({driver, passConfig, settings}, {TestGatherer: []});
+    await GatherRunner.beginRecording({driver, passConfig, settings});
     assert.equal(calledDevtoolsLogCollect, true);
   });
 
@@ -710,27 +711,26 @@ describe('GatherRunner', function() {
   it('does as many passes as are required', () => {
     const t1 = new TestGatherer();
     const t2 = new TestGatherer();
-    const config = new Config({});
-    const settings = {};
 
-    const passes = [{
-      recordTrace: true,
-      passName: 'firstPass',
-      gatherers: [
-        {instance: t1},
-      ],
-    }, {
-      passName: 'secondPass',
-      gatherers: [
-        {instance: t2},
-      ],
-    }];
+    const config = new Config({
+      passes: [{
+        recordTrace: true,
+        passName: 'firstPass',
+        gatherers: [
+          {instance: t1},
+        ],
+      }, {
+        passName: 'secondPass',
+        gatherers: [
+          {instance: t2},
+        ],
+      }],
+    });
 
-    return GatherRunner.run(passes, {
+    return GatherRunner.run(config.passes, {
       driver: fakeDriver,
       requestedUrl: 'https://example.com',
-      settings,
-      config,
+      settings: config.settings,
     }).then(_ => {
       assert.ok(t1.called);
       assert.ok(t2.called);
@@ -738,18 +738,24 @@ describe('GatherRunner', function() {
   });
 
   it('respects trace names', () => {
-    const passes = [{
-      recordTrace: true,
-      passName: 'firstPass',
-      gatherers: [{instance: new TestGatherer()}],
-    }, {
-      recordTrace: true,
-      passName: 'secondPass',
-      gatherers: [{instance: new TestGatherer()}],
-    }];
-    const options = {driver: fakeDriver, requestedUrl: 'https://example.com', settings: {}, config: {}};
+    const config = new Config({
+      passes: [{
+        recordTrace: true,
+        passName: 'firstPass',
+        gatherers: [{instance: new TestGatherer()}],
+      }, {
+        recordTrace: true,
+        passName: 'secondPass',
+        gatherers: [{instance: new TestGatherer()}],
+      }],
+    });
+    const options = {
+      driver: fakeDriver,
+      requestedUrl: 'https://example.com',
+      settings: config.settings,
+    };
 
-    return GatherRunner.run(passes, options)
+    return GatherRunner.run(config.passes, options)
       .then(artifacts => {
         assert.ok(artifacts.traces.firstPass);
         assert.ok(artifacts.devtoolsLogs.firstPass);
@@ -759,18 +765,24 @@ describe('GatherRunner', function() {
   });
 
   it('doesn\'t leave networkRecords as an artifact', () => {
-    const passes = [{
-      recordTrace: true,
-      passName: 'firstPass',
-      gatherers: [{instance: new TestGatherer()}],
-    }, {
-      recordTrace: true,
-      passName: 'secondPass',
-      gatherers: [{instance: new TestGatherer()}],
-    }];
-    const options = {driver: fakeDriver, requestedUrl: 'https://example.com', settings: {}, config: {}};
+    const config = new Config({
+      passes: [{
+        recordTrace: true,
+        passName: 'firstPass',
+        gatherers: [{instance: new TestGatherer()}],
+      }, {
+        recordTrace: true,
+        passName: 'secondPass',
+        gatherers: [{instance: new TestGatherer()}],
+      }],
+    });
+    const options = {
+      driver: fakeDriver,
+      requestedUrl: 'https://example.com',
+      settings: config.settings,
+    };
 
-    return GatherRunner.run(passes, options)
+    return GatherRunner.run(config.passes, options)
       .then(artifacts => {
         assert.equal(artifacts.networkRecords, undefined);
       });
@@ -1043,15 +1055,16 @@ describe('GatherRunner', function() {
           }
         },
       ];
-      const passes = [{
-
-        gatherers: gatherers.map(G => ({instance: new G()})),
-      }];
+      const config = new Config({
+        passes: [{
+          gatherers: gatherers.map(G => ({instance: new G()})),
+        }],
+      });
 
-      const artifacts = await GatherRunner.run(passes, {
+      const artifacts = await GatherRunner.run(config.passes, {
         driver: fakeDriver,
         requestedUrl: 'https://example.com',
-        settings: {},
+        settings: config.settings,
       });
 
       // Ensure artifacts returned and not errors.
@@ -1097,16 +1110,16 @@ describe('GatherRunner', function() {
         }(),
       ].map(instance => ({instance}));
       const gathererNames = gatherers.map(gatherer => gatherer.instance.name);
-      const passes = [{
-
-        gatherers,
-      }];
+      const config = new Config({
+        passes: [{
+          gatherers,
+        }],
+      });
 
-      return GatherRunner.run(passes, {
+      return GatherRunner.run(config.passes, {
         driver: fakeDriver,
         requestedUrl: 'https://example.com',
-        settings: {},
-        config: new Config({}),
+        settings: config.settings,
       }).then(artifacts => {
         gathererNames.forEach(gathererName => {
           assert.strictEqual(artifacts[gathererName], gathererName);
@@ -1135,12 +1148,14 @@ describe('GatherRunner', function() {
         {instance: new class EavesdropGatherer3 extends EavesdropGatherer {}()},
       ];
 
-      const passes = [{gatherers}];
-      return GatherRunner.run(passes, {
+      const config = new Config({
+        passes: [{gatherers}],
+      });
+
+      return GatherRunner.run(config.passes, {
         driver: fakeDriver,
         requestedUrl: 'https://example.com',
-        settings: {},
-        config: new Config({}),
+        settings: config.settings,
       }).then(artifacts => {
         assert.equal(artifacts.EavesdropGatherer1, 1);
         assert.equal(artifacts.EavesdropGatherer2, 2);
@@ -1191,7 +1206,7 @@ describe('GatherRunner', function() {
         ],
       };
 
-      return GatherRunner.collectArtifacts(gathererResults, {}).then(({artifacts}) => {
+      return GatherRunner.collectArtifacts(gathererResults).then(({artifacts}) => {
         assert.strictEqual(artifacts.AfterGatherer, 97);
         assert.strictEqual(artifacts.PassGatherer, 284);
         assert.strictEqual(artifacts.SingleErrorGatherer, recoverableError);
@@ -1215,14 +1230,15 @@ describe('GatherRunner', function() {
         }
       }
 
-      const passes = [{
-        gatherers: [{instance: new WarningGatherer()}],
-      }];
-      const artifacts = await GatherRunner.run(passes, {
+      const config = new Config({
+        passes: [{
+          gatherers: [{instance: new WarningGatherer()}],
+        }],
+      });
+      const artifacts = await GatherRunner.run(config.passes, {
         driver: fakeDriver,
         requestedUrl: 'https://example.com',
-        settings: {},
-        config: new Config({}),
+        settings: config.settings,
       });
       assert.deepStrictEqual(artifacts.LighthouseRunWarnings, runWarnings);
     });
@@ -1267,16 +1283,16 @@ describe('GatherRunner', function() {
         }(),
       ].map(instance => ({instance}));
       const gathererNames = gatherers.map(gatherer => gatherer.instance.name);
-      const passes = [{
-
-        gatherers,
-      }];
+      const config = new Config({
+        passes: [{
+          gatherers,
+        }],
+      });
 
-      return GatherRunner.run(passes, {
+      return GatherRunner.run(config.passes, {
         driver: fakeDriver,
         requestedUrl: 'https://example.com',
-        settings: {},
-        config: new Config({}),
+        settings: config.settings,
       }).then(artifacts => {
         gathererNames.forEach(gathererName => {
           const errorArtifact = artifacts[gathererName];
@@ -1287,48 +1303,48 @@ describe('GatherRunner', function() {
     });
 
     it('rejects if a gatherer does not provide an artifact', () => {
-      const passes = [{
-
-        recordTrace: true,
-        passName: 'firstPass',
-        gatherers: [
-          {instance: new TestGathererNoArtifact()},
-        ],
-      }];
+      const config = new Config({
+        passes: [{
+          recordTrace: true,
+          passName: 'firstPass',
+          gatherers: [
+            {instance: new TestGathererNoArtifact()},
+          ],
+        }],
+      });
 
-      return GatherRunner.run(passes, {
+      return GatherRunner.run(config.passes, {
         driver: fakeDriver,
         requestedUrl: 'https://example.com',
-        settings: {},
-        config: new Config({}),
+        settings: config.settings,
       }).then(_ => assert.ok(false), _ => assert.ok(true));
     });
 
     it('rejects when domain name can\'t be resolved', () => {
-      const passes = [{
-
-        recordTrace: true,
-        passName: 'firstPass',
-        gatherers: [],
-      }];
+      const config = new Config({
+        passes: [{
+          recordTrace: true,
+          passName: 'firstPass',
+          gatherers: [],
+        }],
+      });
 
       // Arrange for driver to return unresolved request.
-      const url = 'http://www.some-non-existing-domain.com/';
+      const requestedUrl = 'http://www.some-non-existing-domain.com/';
       const unresolvedDriver = Object.assign({}, fakeDriver, {
         online: true,
         gotoURL() {
-          return Promise.resolve(url);
+          return Promise.resolve(requestedUrl);
         },
         endDevtoolsLog() {
           return unresolvedPerfLog;
         },
       });
 
-      return GatherRunner.run(passes, {
+      return GatherRunner.run(config.passes, {
         driver: unresolvedDriver,
-        url,
-        settings: {},
-        config: new Config({}),
+        requestedUrl,
+        settings: config.settings,
       }).then(artifacts => {
         assert.equal(artifacts.LighthouseRunWarnings.length, 1);
         expect(artifacts.LighthouseRunWarnings[0])
@@ -1337,30 +1353,30 @@ describe('GatherRunner', function() {
     });
 
     it('resolves when domain name can\'t be resolved but is offline', () => {
-      const passes = [{
-
-        recordTrace: true,
-        passName: 'firstPass',
-        gatherers: [],
-      }];
+      const config = new Config({
+        passes: [{
+          recordTrace: true,
+          passName: 'firstPass',
+          gatherers: [],
+        }],
+      });
 
       // Arrange for driver to return unresolved request.
-      const url = 'http://www.some-non-existing-domain.com/';
+      const requestedUrl = 'http://www.some-non-existing-domain.com/';
       const unresolvedDriver = Object.assign({}, fakeDriver, {
         online: false,
         gotoURL() {
-          return Promise.resolve(url);
+          return Promise.resolve(requestedUrl);
         },
         endDevtoolsLog() {
           return unresolvedPerfLog;
         },
       });
 
-      return GatherRunner.run(passes, {
+      return GatherRunner.run(config.passes, {
         driver: unresolvedDriver,
-        url,
-        settings: {},
-        config: new Config({}),
+        requestedUrl,
+        settings: config.settings,
       })
         .then(_ => {
           assert.ok(true);

From 016085cf5eed36c89e4e828563a341036b992eb3 Mon Sep 17 00:00:00 2001
From: Brendan Kenny <bckenny@gmail.com>
Date: Wed, 19 Jun 2019 12:52:01 -0700
Subject: [PATCH 046/110] core(gather-runner): don't save trace on pass with
 pageLoadError (#9198)

---
 .../test/smokehouse/seo/expectations.js       |  3 +-
 lighthouse-core/gather/gather-runner.js       | 24 ++++--
 .../test/gather/gather-runner-test.js         | 79 +++++++++++++++++++
 3 files changed, 98 insertions(+), 8 deletions(-)

diff --git a/lighthouse-cli/test/smokehouse/seo/expectations.js b/lighthouse-cli/test/smokehouse/seo/expectations.js
index 098d0f0358e6..0d370cd37a1e 100644
--- a/lighthouse-cli/test/smokehouse/seo/expectations.js
+++ b/lighthouse-cli/test/smokehouse/seo/expectations.js
@@ -216,8 +216,7 @@ module.exports = [
       },
       audits: {
         'http-status-code': {
-          score: 0,
-          displayValue: '403',
+          score: null,
         },
         'viewport': {
           score: null,
diff --git a/lighthouse-core/gather/gather-runner.js b/lighthouse-core/gather/gather-runner.js
index deb8d4611fe6..36216a0740b9 100644
--- a/lighthouse-core/gather/gather-runner.js
+++ b/lighthouse-core/gather/gather-runner.js
@@ -622,6 +622,18 @@ class GatherRunner {
     return !settings.disableStorageReset && passConfig.recordTrace && passConfig.useThrottling;
   }
 
+  /**
+   * Save the devtoolsLog and trace (if applicable) to baseArtifacts.
+   * @param {LH.Gatherer.PassContext} passContext
+   * @param {LH.Gatherer.LoadData} loadData
+   * @param {string} passName
+   */
+  static _addLoadDataToBaseArtifacts(passContext, loadData, passName) {
+    const baseArtifacts = passContext.baseArtifacts;
+    baseArtifacts.devtoolsLogs[passName] = loadData.devtoolsLog;
+    if (loadData.trace) baseArtifacts.traces[passName] = loadData.trace;
+  }
+
   /**
    * Starting from about:blank, load the page and run gatherers for this pass.
    * @param {LH.Gatherer.PassContext} passContext
@@ -648,20 +660,20 @@ class GatherRunner {
     // Disable throttling so the afterPass analysis isn't throttled
     await driver.setThrottling(passContext.settings, {useThrottling: false});
 
-    // Save devtoolsLog and trace.
-    const baseArtifacts = passContext.baseArtifacts;
-    baseArtifacts.devtoolsLogs[passConfig.passName] = loadData.devtoolsLog;
-    if (loadData.trace) baseArtifacts.traces[passConfig.passName] = loadData.trace;
-
     // If there were any load errors, treat all gatherers as if they errored.
     const pageLoadError = GatherRunner.getPageLoadError(passContext, loadData, possibleNavError);
     if (pageLoadError) {
       log.error('GatherRunner', pageLoadError.friendlyMessage, passContext.url);
       passContext.LighthouseRunWarnings.push(pageLoadError.friendlyMessage);
+      GatherRunner._addLoadDataToBaseArtifacts(passContext, loadData,
+          `pageLoadError-${passConfig.passName}`);
       return GatherRunner.generatePageLoadErrorArtifacts(passContext, pageLoadError);
     }
 
-    // If no error, run `afterPass()` on gatherers and return collected artifacts.
+    // If no error, save devtoolsLog and trace.
+    GatherRunner._addLoadDataToBaseArtifacts(passContext, loadData, passConfig.passName);
+
+    // Run `afterPass()` on gatherers and return collected artifacts.
     await GatherRunner.afterPass(passContext, loadData, gathererResults);
     return GatherRunner.collectArtifacts(gathererResults);
   }
diff --git a/lighthouse-core/test/gather/gather-runner-test.js b/lighthouse-core/test/gather/gather-runner-test.js
index 1bd47cb233c5..533e77646dfd 100644
--- a/lighthouse-core/test/gather/gather-runner-test.js
+++ b/lighthouse-core/test/gather/gather-runner-test.js
@@ -788,6 +788,85 @@ describe('GatherRunner', function() {
       });
   });
 
+  it('saves trace and devtoolsLog with error prefix when there was a runtime error', async () => {
+    const requestedUrl = 'https://example.com';
+    const driver = Object.assign({}, fakeDriver, {
+      // resolved URL here does not match any request in the network records, causing a runtime error.
+      gotoURL: async _ => requestedUrl,
+      online: true,
+    });
+
+    const config = new Config({
+      passes: [{
+        passName: 'firstPass',
+        recordTrace: true,
+        gatherers: [{instance: new TestGatherer()}],
+      }],
+    });
+    const options = {driver, requestedUrl, settings: config.settings};
+    const artifacts = await GatherRunner.run(config.passes, options);
+
+    expect(artifacts.TestGatherer.code).toEqual('NO_DOCUMENT_REQUEST');
+
+    // The only loadData available should be prefixed with `pageLoadError-`.
+    expect(Object.keys(artifacts.traces)).toEqual(['pageLoadError-firstPass']);
+    expect(Object.keys(artifacts.devtoolsLogs)).toEqual(['pageLoadError-firstPass']);
+  });
+
+  it('does not run additional passes after a runtime error', async () => {
+    const t1 = new (class Test1 extends TestGatherer {})();
+    const t2 = new (class Test2 extends TestGatherer {})();
+    const t3 = new (class Test3 extends TestGatherer {})();
+    const config = new Config({
+      passes: [{
+        passName: 'firstPass',
+        recordTrace: true,
+        gatherers: [{instance: t1}],
+      }, {
+        passName: 'secondPass',
+        recordTrace: true,
+        gatherers: [{instance: t2}],
+      }, {
+        passName: 'thirdPass',
+        recordTrace: true,
+        gatherers: [{instance: t3}],
+      }],
+    });
+
+    const requestedUrl = 'https://www.reddit.com/r/nba';
+    let firstLoad = true;
+    const driver = Object.assign({}, fakeDriver, {
+      // Loads the page successfully in the first pass, fails with NO_FCP in the second.
+      async gotoURL(url) {
+        if (url.includes('blank')) return null;
+        if (firstLoad) {
+          firstLoad = false;
+          return requestedUrl;
+        } else {
+          throw new LHError(LHError.errors.NO_FCP);
+        }
+      },
+      online: true,
+    });
+    const options = {driver, requestedUrl, settings: config.settings};
+    const artifacts = await GatherRunner.run(config.passes, options);
+
+    // t1.pass() and t2.pass() called; t3.pass(), after the error, was not.
+    expect(t1.called).toBe(true);
+    expect(t2.called).toBe(true);
+    expect(t3.called).toBe(false);
+
+    // But only t1 has a valid artifact, t2 has an error artifact, and t3 never ran.
+    expect(artifacts.Test1).toBe('MyArtifact');
+    expect(artifacts.Test2).toBeInstanceOf(LHError);
+    expect(artifacts.Test2.code).toEqual('NO_FCP');
+    expect(artifacts.Test3).toBeUndefined();
+
+    // firstPass has a saved trace and devtoolsLog, secondPass has an error trace and log.
+    expect(Object.keys(artifacts.traces)).toEqual(['firstPass', 'pageLoadError-secondPass']);
+    expect(Object.keys(artifacts.devtoolsLogs)).toEqual(['firstPass', 'pageLoadError-secondPass']);
+  });
+
   describe('#getNetworkError', () => {
     it('passes when the page is loaded', () => {
       const url = 'http://the-page.com';

From 37f72613d8990ec95d1349cf07304f070a6ab600 Mon Sep 17 00:00:00 2001
From: Connor Clark <cjamcl@google.com>
Date: Tue, 18 Jun 2019 21:52:14 -0700
Subject: [PATCH 047/110] report: naming convention (#9149) followup fixes

---
 lighthouse-core/report/html/report-styles.css | 46 +++++++++----------
 lighthouse-core/report/html/templates.html    |  6 +--
 2 files changed, 26 insertions(+), 26 deletions(-)

diff --git a/lighthouse-core/report/html/report-styles.css b/lighthouse-core/report/html/report-styles.css
index 4377ad093573..add4b6f5d725 100644
--- a/lighthouse-core/report/html/report-styles.css
+++ b/lighthouse-core/report/html/report-styles.css
@@ -33,8 +33,8 @@
   color of that hue.
 */
 .lh-vars {
-  --text-font-family: Roboto, Helvetica, Arial, sans-serif;
-  --monospace-font-family: 'Roboto Mono', 'Menlo', 'dejavu sans mono', 'Consolas', 'Lucida Console', monospace;
+  --report-font-family: Roboto, Helvetica, Arial, sans-serif;
+  --report-font-family-monospace: 'Roboto Mono', 'Menlo', 'dejavu sans mono', 'Consolas', 'Lucida Console', monospace;
   --report-background-color: #fff;
   --report-text-color: var(--color-gray-900);
   --report-font-size: 16px;
@@ -47,10 +47,10 @@
   --footer-padding-vertical: 16px;
   --audit-margin-horizontal: 5px;
   --stackpack-padding-horizontal: 10px;
-  --secondary-text-color: var(--color-gray-800);
-  --informative-color: var(--color-blue-900);
+  --report-text-color-secondary: var(--color-gray-800);
+  --color-informative: var(--color-blue-900);
   --snippet-background-color: var(--color-gray-50);
-  --report-secondary-border-color: #ebebeb;
+  --report-border-color-secondary: #ebebeb;
   --chevron-line-stroke: var(--color-gray-600);
   --report-width: calc(60 * var(--report-font-size));
   --report-min-width: 400px;
@@ -173,15 +173,15 @@
     --topbar-background-color: var(--color-gray);
     --plugin-badge-background-color: var(--color-gray-800);
     --env-item-background-color: var(--color-gray);
-    --report-secondary-border-color: var(--color-gray-200);
+    --report-border-color-secondary: var(--color-gray-200);
 
     --report-background-color: var(--color-gray-900);
     --report-text-color: var(--color-gray-100);
-    --secondary-text-color: var(--color-gray-400);
+    --report-text-color-secondary: var(--color-gray-400);
 
     --plugin-icon-url: var(--plugin-icon-url-dark);
 
-    --informative-color: var(--color-blue-200);
+    --color-informative: var(--color-blue-200);
 
     --color-gray-50: #757575;
 
@@ -225,8 +225,8 @@
 }
 
 .lh-vars.lh-devtools {
-  --text-font-family: '.SFNSDisplay-Regular', 'Helvetica Neue', 'Lucida Grande', sans-serif;
-  --monospace-font-family: 'Menlo', 'dejavu sans mono', 'Consolas', 'Lucida Console', monospace;
+  --report-font-family: '.SFNSDisplay-Regular', 'Helvetica Neue', 'Lucida Grande', sans-serif;
+  --report-font-family-monospace: 'Menlo', 'dejavu sans mono', 'Consolas', 'Lucida Console', monospace;
   --report-font-size: 12px;
   --report-line-height: 20px;
   --category-header-font-size: 16px;
@@ -282,7 +282,7 @@
 }
 
 .lh-root {
-  font-family: var(--text-font-family);
+  font-family: var(--report-font-family);
   font-size: var(--report-font-size);
   margin: 0;
   line-height: var(--report-line-height);
@@ -332,7 +332,7 @@
 .lh-category-header__description a,
 .lh-audit__description a,
 .lh-footer a {
-  color: var(--informative-color);
+  color: var(--color-informative);
 }
 
 .lh-audit__description, .lh-audit__stackpack {
@@ -397,7 +397,7 @@
 
 /* Node */
 .lh-node__snippet {
-  font-family: var(--monospace-font-family);
+  font-family: var(--report-font-family-monospace);
   color: var(--color-teal-600);
   font-size: 12px;
   line-height: 1.5em;
@@ -463,7 +463,7 @@
 
 .lh-audit__description,
 .lh-audit__stackpack {
-  color: var(--secondary-text-color);
+  color: var(--report-text-color-secondary);
 }
 .lh-category-header__description  {
   font-size: var(--report-font-size);
@@ -566,10 +566,10 @@
 
 
 .lh-metric {
-  border-bottom: 1px solid var(--report-secondary-border-color);
+  border-bottom: 1px solid var(--report-border-color-secondary);
 }
 .lh-metric:first-of-type {
-  border-top: 1px solid var(--report-secondary-border-color);
+  border-top: 1px solid var(--report-border-color-secondary);
 }
 
 .lh-metric__innerwrap {
@@ -596,7 +596,7 @@
 
 .lh-metric__description {
   display: none;
-  color: var(--secondary-text-color);
+  color: var(--report-text-color-secondary);
   padding: var(--metric-description-padding);
 }
 
@@ -797,7 +797,7 @@
 }
 
 .lh-filmstrip__thumbnail {
-  border: 1px solid var(--report-secondary-border-color);
+  border: 1px solid var(--report-border-color-secondary);
   max-height: 100px;
   max-width: 60px;
 }
@@ -819,12 +819,12 @@
 /* Audit */
 
 .lh-audit {
-  border-bottom: 1px solid var(--report-secondary-border-color);
+  border-bottom: 1px solid var(--report-border-color-secondary);
 }
 
 /* Apply border-top to just the first audit. */
 .lh-audit {
-  border-top: 1px solid var(--report-secondary-border-color);
+  border-top: 1px solid var(--report-border-color-secondary);
 }
 .lh-audit ~ .lh-audit {
   border-top: none;
@@ -995,7 +995,7 @@
 
 .lh-warnings--toplevel {
   --item-margin: calc(var(--header-line-height) / 4);
-  color: var(--secondary-text-color);
+  color: var(--report-text-color-secondary);
   margin: var(--category-padding);
   padding: var(--category-padding);
 }
@@ -1103,7 +1103,7 @@
   width: 100%;
   height: var(--gauge-circle-size);
   position: absolute;
-  font-family: var(--monospace-font-family);
+  font-family: var(--report-font-family-monospace);
   font-size: calc(var(--gauge-circle-size) * 0.34 + 1.3px);
   line-height: 0;
   text-align: center;
@@ -1171,7 +1171,7 @@
   display: flex;
   align-items: center;
   margin: 0 12px;
-  font-family: var(--monospace-font-family);
+  font-family: var(--report-font-family-monospace);
   white-space: nowrap;
 }
 
diff --git a/lighthouse-core/report/html/templates.html b/lighthouse-core/report/html/templates.html
index b4097829d9cc..92f633d0aaf5 100644
--- a/lighthouse-core/report/html/templates.html
+++ b/lighthouse-core/report/html/templates.html
@@ -817,7 +817,7 @@
           border-bottom: none;
           color: var(--snippet-color);
           background-color: var(--snippet-background-color);
-          border: 1px solid var(--report-secondary-border-color);
+          border: 1px solid var(--report-border-color-secondary);
         }
         .lh-snippet__title {
           font-weight: bold;
@@ -841,7 +841,7 @@
 
         .lh-snippet__snippet {
           overflow: auto;
-          border: 1px solid var(--report-secondary-border-color);
+          border: 1px solid var(--report-border-color-secondary);
         }
         /* Container needed so that all children grow to the width of the scroll container */
         .lh-snippet__snippet-inner {
@@ -881,7 +881,7 @@
           padding: 10px;
           padding-left: 5px;
           color: var(--color-fail);
-          font-family: var(--text-font-family);
+          font-family: var(--report-font-family);
         }
         .lh-snippet__line--message code {
           white-space: normal;

From ece89ec3a7f3aba0b10ba6ee476f4d16f17c5746 Mon Sep 17 00:00:00 2001
From: Connor Clark <cjamcl@google.com>
Date: Tue, 18 Jun 2019 22:00:12 -0700
Subject: [PATCH 048/110] report: logically order css variables

---
 lighthouse-core/report/html/report-styles.css | 223 +++++++++---------
 1 file changed, 110 insertions(+), 113 deletions(-)

diff --git a/lighthouse-core/report/html/report-styles.css b/lighthouse-core/report/html/report-styles.css
index add4b6f5d725..8f0f3208dcd0 100644
--- a/lighthouse-core/report/html/report-styles.css
+++ b/lighthouse-core/report/html/report-styles.css
@@ -21,7 +21,7 @@
   If a variable is used for a specific component: --{component}-{property name}-{modifier}
 
   Both {component} and {property name} should be kebab-case. If the target is the entire page,
-  use 'report' for the component. The property name should be not be abbreviated. Use the
+  use 'report' for the component. The property name should not be abbreviated. Use the
   property name the variable is intended for - if it's used for multiple, a common descriptor
   is fine (ex: 'size' for a variable applied to 'width' and 'height'). If a variable is shared
   across multiple components, either create more variables or just drop the "{component}-"
@@ -33,114 +33,115 @@
   color of that hue.
 */
 .lh-vars {
-  --report-font-family: Roboto, Helvetica, Arial, sans-serif;
-  --report-font-family-monospace: 'Roboto Mono', 'Menlo', 'dejavu sans mono', 'Consolas', 'Lucida Console', monospace;
-  --report-background-color: #fff;
-  --report-text-color: var(--color-gray-900);
-  --report-font-size: 16px;
-  --report-line-height: 24px;
-  --snippet-color: var(--color-gray-800);
-  --category-header-font-size: 20px;
-  --header-line-height: 24px;
-  --audit-explanation-line-height: 16px;
-  --default-padding: 12px;
-  --footer-padding-vertical: 16px;
-  --audit-margin-horizontal: 5px;
-  --stackpack-padding-horizontal: 10px;
-  --report-text-color-secondary: var(--color-gray-800);
-  --color-informative: var(--color-blue-900);
-  --snippet-background-color: var(--color-gray-50);
-  --report-border-color-secondary: #ebebeb;
-  --chevron-line-stroke: var(--color-gray-600);
-  --report-width: calc(60 * var(--report-font-size));
-  --report-min-width: 400px;
-  --score-icon-background-size: 24px;
-  --tools-icon-size: var(--score-icon-background-size);
-  --tools-icon-color: var(--color-gray-600);
-  --table-higlight-background-color: hsla(0, 0%, 75%, 0.1);
-  --sparkline-height: 5px;
-  --audit-padding-vertical: 8px;
-  --audit-group-padding-vertical: 8px;
-  --section-padding-vertical: 12px;
-  --chevron-size: 12px;
-  --audit-description-padding-left: calc(var(--score-icon-size) + var(--score-icon-margin-left) + var(--score-icon-margin-right));
-
   /* Palette using Material Design Colors
    * https://www.materialui.co/colors */
-  --color-gray-50: #FAFAFA;
+  --color-blue-200: #90CAF9;
+  --color-blue-900: #0D47A1;
+  --color-blue-A700: #2962FF;
+  --color-cyan-500: #00BCD4;
   --color-gray-100: #F5F5F5;
   --color-gray-200: #E0E0E0;
   --color-gray-400: #BDBDBD;
+  --color-gray-50: #FAFAFA;
   --color-gray-500: #9E9E9E;
   --color-gray-600: #757575;
   --color-gray-800: #424242;
   --color-gray-900: #212121;
   --color-gray: #000000;
-  --color-blue-A700: #2962FF;
   --color-green-700: #018642;
   --color-green: #0CCE6B;
   --color-orange-700: #D04900;
   --color-orange: #FFA400;
   --color-red-700: #EB0F00;
   --color-red: #FF4E42;
-  --color-white: #FFFFFF;
-  --color-blue-200: #90CAF9;
-  --color-blue-900: #0D47A1;
-  --color-cyan-500: #00BCD4;
   --color-teal-600: #00897B;
+  --color-white: #FFFFFF;
 
+  /* Context-specific colors */
+  --color-average-secondary: var(--color-orange-700);
+  --color-average: var(--color-orange);
+  --color-fail-secondary: var(--color-red-700);
+  --color-fail: var(--color-red);
+  --color-informative: var(--color-blue-900);
+  --color-pass-secondary: var(--color-green-700);
+  --color-pass: var(--color-green);
+  --color-hover: var(--color-gray-50);
+
+  /* Component variables */
+  --audit-description-padding-left: calc(var(--score-icon-size) + var(--score-icon-margin-left) + var(--score-icon-margin-right));
+  --audit-explanation-line-height: 16px;
   --audit-group-margin-bottom: 40px;
+  --audit-group-padding-vertical: 8px;
+  --audit-margin-horizontal: 5px;
+  --audit-padding-vertical: 8px;
+  --category-header-font-size: 20px;
+  --category-padding: 40px;
+  --chevron-line-stroke: var(--color-gray-600);
+  --chevron-size: 12px;
+  --default-padding: 12px;
   --env-item-background-color: var(--color-gray-100);
-  --env-name-min-width: 220px;
-  --env-item-padding: 10px 0px;
   --env-item-font-size: 28px;
   --env-item-line-height: 36px;
-  --metric-description-padding: 0 0 2px calc(var(--score-icon-margin-left) + var(--score-icon-size) + var(--score-icon-margin-right));
+  --env-item-padding: 10px 0px;
+  --env-name-min-width: 220px;
+  --footer-padding-vertical: 16px;
   --gauge-circle-size-big: 112px;
   --gauge-circle-size: 80px;
-  --scores-container-padding: 20px 0 20px 0;
+  --gauge-label-font-size-big: 28px;
+  --gauge-label-font-size: 20px;
+  --gauge-label-line-height-big: 36px;
+  --gauge-label-line-height: 26px;
+  --gauge-percentage-font-size-big: 38px;
+  --gauge-percentage-font-size: 28px;
+  --gauge-wrapper-width: 148px;
+  --header-line-height: 24px;
+  --highlighter-background-color: var(--report-text-color);
   --icon-square-size: calc(var(--score-icon-size) * 0.88);
+  --metric-description-padding: 0 0 2px calc(var(--score-icon-margin-left) + var(--score-icon-size) + var(--score-icon-margin-right));
+  --metric-toggle-lines-fill: #7F7F7F;
+  --metrics-toggle-background-color: var(--color-gray-200);
   --plugin-badge-background-color: var(--color-white);
   --plugin-badge-size-big: calc(var(--gauge-circle-size-big) / 2.7);
   --plugin-badge-size: calc(var(--gauge-circle-size) / 2.7);
   --plugin-icon-size: 65%;
   --pwa-icon-margin: 0 6px 0 -2px;
   --pwa-icon-size: var(--topbar-logo-size);
+  --report-background-color: #fff;
+  --report-border-color-secondary: #ebebeb;
+  --report-font-family-monospace: 'Roboto Mono', 'Menlo', 'dejavu sans mono', 'Consolas', 'Lucida Console', monospace;
+  --report-font-family: Roboto, Helvetica, Arial, sans-serif;
+  --report-font-size: 16px;
+  --report-line-height: 24px;
+  --report-min-width: 400px;
+  --report-text-color-secondary: var(--color-gray-800);
+  --report-text-color: var(--color-gray-900);
+  --report-width: calc(60 * var(--report-font-size));
   --score-container-padding: 8px;
-  --gauge-wrapper-width: 148px;
-  --gauge-percentage-font-size-big: 38px;
-  --gauge-percentage-font-size: 28px;
+  --score-icon-background-size: 24px;
   --score-icon-margin-left: 4px;
   --score-icon-margin-right: 12px;
   --score-icon-margin: 0 var(--score-icon-margin-right) 0 var(--score-icon-margin-left);
   --score-icon-size: 12px;
-  --gauge-label-font-size-big: 28px;
-  --gauge-label-font-size: 20px;
-  --gauge-label-line-height-big: 36px;
-  --gauge-label-line-height: 26px;
+  --scores-container-padding: 20px 0 20px 0;
   --scorescale-height: 6px;
   --scorescale-width: 18px;
-  --category-padding: 40px;
+  --section-padding-vertical: 12px;
+  --snippet-background-color: var(--color-gray-50);
+  --snippet-color: var(--color-gray-800);
+  --sparkline-height: 5px;
+  --stackpack-padding-horizontal: 10px;
+  --sticky-header-background-color: var(--report-background-color);
+  --table-higlight-background-color: hsla(0, 0%, 75%, 0.1);
+  --tools-icon-color: var(--color-gray-600);
+  --tools-icon-size: var(--score-icon-background-size);
   --topbar-background-color: var(--color-gray-100);
   --topbar-height: 32px;
   --topbar-logo-size: 24px;
   --topbar-padding: 0 8px;
-  --metrics-toggle-background-color: var(--color-gray-200);
-
-  --color-average-secondary: var(--color-orange-700);
-  --color-average: var(--color-orange);
-  --color-fail-secondary: var(--color-red-700);
-  --color-fail: var(--color-red);
-  --color-pass-secondary: var(--color-green-700);
-  --color-pass: var(--color-green);
-  --sticky-header-background-color: var(--report-background-color);
-  --highlighter-background-color: var(--report-text-color);
 
-  --color-hover: #FAFAFA;
-  --metric-toggle-lines-fill: #7F7F7F;
-
-  --plugin-icon-url: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="24px" height="24px" viewBox="0 0 24 24" fill="%23757575"><path d="M0 0h24v24H0z" fill="none"/><path d="M20.5 11H19V7c0-1.1-.9-2-2-2h-4V3.5C13 2.12 11.88 1 10.5 1S8 2.12 8 3.5V5H4c-1.1 0-1.99.9-1.99 2v3.8H3.5c1.49 0 2.7 1.21 2.7 2.7s-1.21 2.7-2.7 2.7H2V20c0 1.1.9 2 2 2h3.8v-1.5c0-1.49 1.21-2.7 2.7-2.7 1.49 0 2.7 1.21 2.7 2.7V22H17c1.1 0 2-.9 2-2v-4h1.5c1.38 0 2.5-1.12 2.5-2.5S21.88 11 20.5 11z"/></svg>');
+  /* SVGs */
   --plugin-icon-url-dark: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="24px" height="24px" viewBox="0 0 24 24" fill="%23FFFFFF"><path d="M0 0h24v24H0z" fill="none"/><path d="M20.5 11H19V7c0-1.1-.9-2-2-2h-4V3.5C13 2.12 11.88 1 10.5 1S8 2.12 8 3.5V5H4c-1.1 0-1.99.9-1.99 2v3.8H3.5c1.49 0 2.7 1.21 2.7 2.7s-1.21 2.7-2.7 2.7H2V20c0 1.1.9 2 2 2h3.8v-1.5c0-1.49 1.21-2.7 2.7-2.7 1.49 0 2.7 1.21 2.7 2.7V22H17c1.1 0 2-.9 2-2v-4h1.5c1.38 0 2.5-1.12 2.5-2.5S21.88 11 20.5 11z"/></svg>');
+  --plugin-icon-url: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="24px" height="24px" viewBox="0 0 24 24" fill="%23757575"><path d="M0 0h24v24H0z" fill="none"/><path d="M20.5 11H19V7c0-1.1-.9-2-2-2h-4V3.5C13 2.12 11.88 1 10.5 1S8 2.12 8 3.5V5H4c-1.1 0-1.99.9-1.99 2v3.8H3.5c1.49 0 2.7 1.21 2.7 2.7s-1.21 2.7-2.7 2.7H2V20c0 1.1.9 2 2 2h3.8v-1.5c0-1.49 1.21-2.7 2.7-2.7 1.49 0 2.7 1.21 2.7 2.7V22H17c1.1 0 2-.9 2-2v-4h1.5c1.38 0 2.5-1.12 2.5-2.5S21.88 11 20.5 11z"/></svg>');
 
   --pass-icon-url: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 48 48"><title>check</title><path fill="%23178239" d="M24 4C12.95 4 4 12.95 4 24c0 11.04 8.95 20 20 20 11.04 0 20-8.96 20-20 0-11.05-8.96-20-20-20zm-4 30L10 24l2.83-2.83L20 28.34l15.17-15.17L38 16 20 34z"/></svg>');
   --average-icon-url: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 48 48"><title>info</title><path fill="%23E67700" d="M24 4C12.95 4 4 12.95 4 24s8.95 20 20 20 20-8.95 20-20S35.05 4 24 4zm2 30h-4V22h4v12zm0-16h-4v-4h4v4z"/></svg>');
@@ -161,32 +162,31 @@
 
 @media not print {
   .lh-vars.dark {
-    --color-red-700: var(--color-red);
-    --color-green-700: var(--color-green);
-    --color-teal-600: var(--color-cyan-500);
-    --color-orange-700: var(--color-orange);
-
+    /* Pallete */
     --color-gray-200: var(--color-gray-800);
     --color-gray-400: var(--color-gray-600);
+    --color-gray-50: #757575;
     --color-gray-600: var(--color-gray-500);
+    --color-green-700: var(--color-green);
+    --color-orange-700: var(--color-orange);
+    --color-red-700: var(--color-red);
+    --color-teal-600: var(--color-cyan-500);
 
-    --topbar-background-color: var(--color-gray);
-    --plugin-badge-background-color: var(--color-gray-800);
-    --env-item-background-color: var(--color-gray);
-    --report-border-color-secondary: var(--color-gray-200);
+    /* Context-specific colors */
+    --color-hover: rgba(0, 0, 0, 0.2);
+    --color-informative: var(--color-blue-200);
 
+    /* Component variables */
+    --env-item-background-color: var(--color-gray);
+    --plugin-badge-background-color: var(--color-gray-800);
     --report-background-color: var(--color-gray-900);
-    --report-text-color: var(--color-gray-100);
+    --report-border-color-secondary: var(--color-gray-200);
     --report-text-color-secondary: var(--color-gray-400);
+    --report-text-color: var(--color-gray-100);
+    --topbar-background-color: var(--color-gray);
 
+    /* SVGs */
     --plugin-icon-url: var(--plugin-icon-url-dark);
-
-    --color-informative: var(--color-blue-200);
-
-    --color-gray-50: #757575;
-
-    --color-hover: rgba(0, 0, 0, 0.2);
-
     --pwa-fast-reliable-gray-url: var(--pwa-fast-reliable-gray-url-dark);
     --pwa-installable-gray-url: var(--pwa-installable-gray-url-dark);
     --pwa-optimized-gray-url: var(--pwa-optimized-gray-url-dark);
@@ -196,24 +196,24 @@
 @media only screen and (max-width: 480px) {
   .lh-vars {
     --audit-group-margin-bottom: 20px;
-    --report-font-size: 14px;
-    --report-line-height: 20px;
+    --category-padding: 24px;
     --env-name-min-width: 120px;
     --gauge-circle-size-big: 96px;
     --gauge-circle-size: 72px;
+    --gauge-label-font-size-big: 22px;
+    --gauge-label-font-size: 14px;
+    --gauge-label-line-height-big: 26px;
+    --gauge-label-line-height: 20px;
+    --gauge-percentage-font-size-big: 34px;
+    --gauge-percentage-font-size: 26px;
+    --gauge-wrapper-width: 112px;
     --header-padding: 16px 0 16px 0;
     --plugin-icon-size: 75%;
     --pwa-icon-margin: 0 7px 0 -3px;
-    --gauge-wrapper-width: 112px;
-    --gauge-percentage-font-size-big: 34px;
-    --gauge-percentage-font-size: 26px;
+    --report-font-size: 14px;
+    --report-line-height: 20px;
     --score-icon-margin-left: 2px;
     --score-icon-size: 10px;
-    --gauge-label-font-size-big: 22px;
-    --gauge-label-font-size: 14px;
-    --gauge-label-line-height-big: 26px;
-    --gauge-label-line-height: 20px;
-    --category-padding: 24px;
     --topbar-height: 28px;
     --topbar-logo-size: 20px;
   }
@@ -225,37 +225,34 @@
 }
 
 .lh-vars.lh-devtools {
-  --report-font-family: '.SFNSDisplay-Regular', 'Helvetica Neue', 'Lucida Grande', sans-serif;
-  --report-font-family-monospace: 'Menlo', 'dejavu sans mono', 'Consolas', 'Lucida Console', monospace;
-  --report-font-size: 12px;
-  --report-line-height: 20px;
-  --category-header-font-size: 16px;
-  --header-line-height: 20px;
   --audit-explanation-line-height: 14px;
-  --default-padding: 12px;
+  --audit-group-margin-bottom: 20px;
+  --audit-group-padding-vertical: 12px;
+  --audit-padding-vertical: 4px;
+  --category-header-font-size: 16px;
   --category-padding: 12px;
+  --default-padding: 12px;
+  --env-name-min-width: 120px;
   --footer-padding-vertical: 8px;
-
   --gauge-circle-size-big: 72px;
   --gauge-circle-size: 64px;
-
-  --audit-group-margin-bottom: 20px;
-  --env-name-min-width: 120px;
+  --gauge-label-font-size-big: 22px;
+  --gauge-label-font-size: 14px;
+  --gauge-label-line-height-big: 26px;
+  --gauge-label-line-height: 20px;
+  --gauge-percentage-font-size-big: 34px;
+  --gauge-percentage-font-size: 26px;
+  --gauge-wrapper-width: 97px;
+  --header-line-height: 20px;
   --header-padding: 16px 0 16px 0;
   --plugin-icon-size: 75%;
   --pwa-icon-margin: 0 7px 0 -3px;
-  --gauge-wrapper-width: 97px;
-  --gauge-percentage-font-size-big: 34px;
-  --gauge-percentage-font-size: 26px;
+  --report-font-family-monospace: 'Menlo', 'dejavu sans mono', 'Consolas', 'Lucida Console', monospace;
+  --report-font-family: '.SFNSDisplay-Regular', 'Helvetica Neue', 'Lucida Grande', sans-serif;
+  --report-font-size: 12px;
+  --report-line-height: 20px;
   --score-icon-margin-left: 2px;
   --score-icon-size: 10px;
-  --gauge-label-font-size-big: 22px;
-  --gauge-label-font-size: 14px;
-  --gauge-label-line-height-big: 26px;
-  --gauge-label-line-height: 20px;
-
-  --audit-padding-vertical: 4px;
-  --audit-group-padding-vertical: 12px;
   --section-padding-vertical: 8px;
 }
 

From 80a8058daff9c0a60e8553d710e75bbdaeaef2a4 Mon Sep 17 00:00:00 2001
From: Paul Irish <paulirish@google.com>
Date: Wed, 19 Jun 2019 18:55:05 -0700
Subject: [PATCH 049/110] docs: update understanding-results.md (#9226)

---
 docs/understanding-results.md | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/docs/understanding-results.md b/docs/understanding-results.md
index c753e8e1d8ec..587f83e5d619 100644
--- a/docs/understanding-results.md
+++ b/docs/understanding-results.md
@@ -22,16 +22,17 @@ For an always up-to-date definition of the LHR, take a look [at our typedefs](ht
 | [timing](#timing) | An object containing information about how long Lighthouse spent auditing. |
 | [categories](#categories) | An object containing the different categories, their scores, and references to the audits that comprise them. |
 | [categoryGroups](#category-groups) | An object containing the display groups of audits for the report. |
+| runtimeError | An object `{code: string, message: string};` providing a top-level error message that, if present, indicates a serious enough problem that this Lighthouse result may need to be discarded. |
+| runWarnings | Array of top-level warnings for this Lighthouse run. |
 
 ### Example
 ```json
 {
-  "lighthouseVersion": "2.4.0",
-  "fetchTime": "2017-10-05T20:50:54.185Z",
-  "userAgent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3233.0 Safari/537.36",
+  "lighthouseVersion": "5.1.0",
+  "fetchTime": "2019-05-05T20:50:54.185Z",
+  "userAgent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3358.0 Safari/537.36",
   "requestedUrl": "http://example.com",
   "finalUrl": "https://www.example.com/",
-  "score": 50,
   "audits": {...},
   "configSettings": {...},
   "timing": {...},
@@ -56,10 +57,10 @@ An object containing the results of the audits, keyed by their name.
 | warnings | <code>string[]&#124;undefined</code> | Messages identifying potentially invalid cases |
 | errorMessage | <code>string&#124;undefined</code> | A message set |
 | numericValue | <code>number&#124;undefined</code> | The unscored value determined by the audit. Typically this will match the score if there's no additional information to impart. For performance audits, this value is typically a number indicating the metric value. |
-| displayValue | `string` | The string to display in the report alongside audit results. If empty, nothing additional is shown. This is typically used to explain additional information such as the number and nature of failing items. |
-| score | <code>number</code> | The scored value determined by the audit as a number `0-1`, representing displayed scores of 0-100. |
-| scoreDisplayMode | <code>"binary"&#124;"numeric"&#124;"error"&#124;"manual"&#124;"notApplicable"&#124;"informative"</code> | A string identifying how the score should be interpreted for display i.e. is the audit pass/fail (score of 1 or 0), did it fail, should it be ignored, or are there shades of gray (scores between 0-1 inclusive). |
-| details | `Object` | Extra information found by the audit necessary for display. The structure of this object varies from audit to audit. The structure of this object is somewhat stable between minor version bumps as this object is used to render the HTML report. |
+| displayValue | <code>string&#124;undefined</code> | The string to display in the report alongside audit results. If empty, nothing additional is shown. This is typically used to explain additional information such as the number and nature of failing items. |
+| score | <code>number&#124;null</code> | The scored value determined by the audit provided in the numeric range `0-1`, or null if `scoreDisplayMode` indicates not scored. |
+| scoreDisplayMode | <code>"binary" &#124; "numeric" &#124; "error" &#124; "manual" &#124; "notApplicable" &#124; "informative"</code> | A string identifying how the score should be interpreted for display i.e. is the audit pass/fail (score of 1 or 0), did it fail, should it be ignored, or are there shades of gray (scores between 0-1 inclusive). If set as `informative`, `notApplicable`, `manual`, or `error`, then `score` will be null and should be ignored. |
+| details | `Object` | Extra information found by the audit necessary for display. The structure of this object varies from audit to audit. The [structure of this object](https://github.com/GoogleChrome/lighthouse/blob/master/types/audit-details.d.ts) is somewhat stable between minor version bumps as this object is used to render the HTML report. |
 
 
 ### Example

From f1e1349f7fb6c048e434237b2f951ef215d56831 Mon Sep 17 00:00:00 2001
From: Patrick Hulce <patrick.hulce@gmail.com>
Date: Wed, 19 Jun 2019 21:35:05 -0500
Subject: [PATCH 050/110] core(tracehouse): allow missing FCP (#9174)

---
 lighthouse-core/computed/trace-of-tab.js      | 31 ++++++++++++++-----
 .../lib/tracehouse/trace-processor.js         | 22 +++++--------
 .../lib/tracehouse/trace-processor-test.js    |  5 ++-
 3 files changed, 33 insertions(+), 25 deletions(-)

diff --git a/lighthouse-core/computed/trace-of-tab.js b/lighthouse-core/computed/trace-of-tab.js
index b8f572c89dd8..6922f3810f09 100644
--- a/lighthouse-core/computed/trace-of-tab.js
+++ b/lighthouse-core/computed/trace-of-tab.js
@@ -19,13 +19,6 @@ class LHTraceProcessor extends TraceProcessor {
     return new LHError(LHError.errors.NO_NAVSTART);
   }
 
-  /**
-   * @return {Error}
-   */
-  static createNoFirstContentfulPaintError() {
-    return new LHError(LHError.errors.NO_FCP);
-  }
-
   /**
    * @return {Error}
    */
@@ -43,7 +36,29 @@ class TraceOfTab {
    * @return {Promise<LH.Artifacts.TraceOfTab>}
   */
   static async compute_(trace) {
-    return LHTraceProcessor.computeTraceOfTab(trace);
+    // Trace of tab doesn't require FCP to exist, but all of LH requires it.
+    // We'll check that we got an FCP here and re-type accordingly so all of our consumers don't
+    // have to repeat this check.
+    const traceOfTab = await LHTraceProcessor.computeTraceOfTab(trace);
+    const {timings, timestamps, firstContentfulPaintEvt} = traceOfTab;
+    const {firstContentfulPaint: firstContentfulPaintTiming} = timings;
+    const {firstContentfulPaint: firstContentfulPaintTs} = timestamps;
+    if (
+      !firstContentfulPaintEvt ||
+      firstContentfulPaintTiming === undefined ||
+      firstContentfulPaintTs === undefined
+    ) {
+      throw new LHError(LHError.errors.NO_FCP);
+    }
+
+    // We already know that `traceOfTab` is good to go at this point, but tsc doesn't yet.
+    // Help tsc out by reconstructing the object manually with the known defined values.
+    return {
+      ...traceOfTab,
+      firstContentfulPaintEvt,
+      timings: {...timings, firstContentfulPaint: firstContentfulPaintTiming},
+      timestamps: {...timestamps, firstContentfulPaint: firstContentfulPaintTs},
+    };
   }
 }
 
diff --git a/lighthouse-core/lib/tracehouse/trace-processor.js b/lighthouse-core/lib/tracehouse/trace-processor.js
index 2bc4c6feeca6..49e798a581be 100644
--- a/lighthouse-core/lib/tracehouse/trace-processor.js
+++ b/lighthouse-core/lib/tracehouse/trace-processor.js
@@ -16,6 +16,9 @@
  * 4. Return all those items in one handy bundle.
  */
 
+/** @typedef {Omit<LH.Artifacts.TraceTimes, 'firstContentfulPaint'> & {firstContentfulPaint?: number}} TraceTimesWithoutFCP */
+/** @typedef {Omit<LH.Artifacts.TraceOfTab, 'firstContentfulPaintEvt'|'timings'|'timestamps'> & {timings: TraceTimesWithoutFCP, timestamps: TraceTimesWithoutFCP, firstContentfulPaintEvt?: LH.Artifacts.TraceOfTab['firstContentfulPaintEvt']}} TraceOfTabWithoutFCP */
+
 const log = require('lighthouse-logger');
 
 const ACCEPTABLE_NAVIGATION_URL_REGEX = /^(chrome|https?):/;
@@ -40,13 +43,6 @@ class TraceProcessor {
     return new Error('No navigationStart event found');
   }
 
-  /**
-   * @return {Error}
-   */
-  static createNoFirstContentfulPaintError() {
-    return new Error('No firstContentfulPaint event found');
-  }
-
   /**
    * @return {Error}
    */
@@ -351,7 +347,7 @@ class TraceProcessor {
    * Finds key trace events, identifies main process/thread, and returns timings of trace events
    * in milliseconds since navigation start in addition to the standard microsecond monotonic timestamps.
    * @param {LH.Trace} trace
-   * @return {LH.Artifacts.TraceOfTab}
+   * @return {TraceOfTabWithoutFCP}
   */
   static computeTraceOfTab(trace) {
     // Parse the trace for our key events and sort them by timestamp. Note: sort
@@ -380,7 +376,6 @@ class TraceProcessor {
     const firstContentfulPaint = frameEvents.find(
       e => e.name === 'firstContentfulPaint' && e.ts > navigationStart.ts
     );
-    if (!firstContentfulPaint) throw this.createNoFirstContentfulPaintError();
 
     // fMP will follow at/after the FP
     let firstMeaningfulPaint = frameEvents.find(
@@ -424,27 +419,26 @@ class TraceProcessor {
 
     /** @param {{ts: number}=} event */
     const getTimestamp = (event) => event && event.ts;
-    /** @type {LH.Artifacts.TraceTimes} */
+    /** @type {TraceTimesWithoutFCP} */
     const timestamps = {
       navigationStart: navigationStart.ts,
       firstPaint: getTimestamp(firstPaint),
-      firstContentfulPaint: firstContentfulPaint.ts,
+      firstContentfulPaint: getTimestamp(firstContentfulPaint),
       firstMeaningfulPaint: getTimestamp(firstMeaningfulPaint),
       traceEnd: fakeEndOfTraceEvt.ts,
       load: getTimestamp(load),
       domContentLoaded: getTimestamp(domContentLoaded),
     };
 
-
     /** @param {number} ts */
     const getTiming = (ts) => (ts - navigationStart.ts) / 1000;
     /** @param {number=} ts */
     const maybeGetTiming = (ts) => ts === undefined ? undefined : getTiming(ts);
-    /** @type {LH.Artifacts.TraceTimes} */
+    /** @type {TraceTimesWithoutFCP} */
     const timings = {
       navigationStart: 0,
       firstPaint: maybeGetTiming(timestamps.firstPaint),
-      firstContentfulPaint: getTiming(timestamps.firstContentfulPaint),
+      firstContentfulPaint: maybeGetTiming(timestamps.firstContentfulPaint),
       firstMeaningfulPaint: maybeGetTiming(timestamps.firstMeaningfulPaint),
       traceEnd: getTiming(timestamps.traceEnd),
       load: maybeGetTiming(timestamps.load),
diff --git a/lighthouse-core/test/lib/tracehouse/trace-processor-test.js b/lighthouse-core/test/lib/tracehouse/trace-processor-test.js
index 66e1204d0c1c..7c5dcc2bfa74 100644
--- a/lighthouse-core/test/lib/tracehouse/trace-processor-test.js
+++ b/lighthouse-core/test/lib/tracehouse/trace-processor-test.js
@@ -436,9 +436,8 @@ describe('TraceProcessor', () => {
         .toThrowError('navigationStart');
     });
 
-    it('throws on traces missing an FCP', () => {
-      expect(() => TraceProcessor.computeTraceOfTab(noFCPtrace))
-        .toThrowError('firstContentfulPaint');
+    it('does not throw on traces missing an FCP', () => {
+      expect(() => TraceProcessor.computeTraceOfTab(noFCPtrace)).not.toThrow();
     });
   });
 });

From e7f541d8898286a37ec992500a8aa95a0d03400a Mon Sep 17 00:00:00 2001
From: Artem Denysov <denysov.artem@gmail.com>
Date: Fri, 21 Jun 2019 01:24:44 +0300
Subject: [PATCH 051/110] docs(readme): add Exthouse to related projects
 (#9243)

---
 readme.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/readme.md b/readme.md
index 0f8399ca8bdb..8883d4e2a331 100644
--- a/readme.md
+++ b/readme.md
@@ -306,6 +306,7 @@ This section details services that have integrated Lighthouse data. If you're wo
 ## Related Projects
 Other awesome open source projects that use Lighthouse.
 
+* **[Exthouse](https://github.com/treosh/exthouse)** - Analyze the impact of a browser extension on web performance.
 * **[Garie](https://github.com/boyney123/garie)** — An open source tool for monitoring performance using Lighthouse,  PageSpeed Insights, [Prometheus](https://prometheus.io/), [Grafana](https://grafana.com/) and [Docker](https://www.docker.com/).
 * **[Gimbal](https://labs.moduscreate.com/gimbal-web-performance-audit-budgeting)** - An [open source (MIT licensed)](https://github.com/ModusCreateOrg/gimbal) tool used to measure, analyze, and budget aspects of a web application. Gimbal also integrates reports with GitHub pull requests.
 * **[lightcrawler](https://github.com/github/lightcrawler)** - Crawl a website and run each page found through Lighthouse.

From 68329fd5f4e597d3f5186a3443bf5d80fb5758f3 Mon Sep 17 00:00:00 2001
From: Brendan Kenny <bckenny@gmail.com>
Date: Thu, 20 Jun 2019 19:44:55 -0700
Subject: [PATCH 052/110] deps: remove commitizen as local dep (#9246)

---
 package.json |   1 -
 yarn.lock    | 911 +++++----------------------------------------------
 2 files changed, 79 insertions(+), 833 deletions(-)

diff --git a/package.json b/package.json
index 2af0149e182d..8598a456b899 100644
--- a/package.json
+++ b/package.json
@@ -104,7 +104,6 @@
     "bundlesize": "^0.17.2",
     "chalk": "^2.4.1",
     "codecov": "^3.2.0",
-    "commitizen": "^2.10.1",
     "conventional-changelog-cli": "^1.3.4",
     "coveralls": "^3.0.3",
     "cpy": "^7.0.1",
diff --git a/yarn.lock b/yarn.lock
index 050128c60cdc..0513c49eeb75 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -753,7 +753,7 @@
   resolved "https://registry.yarnpkg.com/@types/yargs/-/yargs-8.0.2.tgz#0f9c7b236e2d78cd8f4b6502de15d0728aa29385"
   integrity sha512-Upj9YsBZRgjEVPvsaeGru48d2JiyzBNZkmkebHyoaQ+UM9wqj/rp5mkilRjSq/Ga45yfd/zwrNuML9f2gGfVpw==
 
-JSONStream@^1.0.3:
+JSONStream@^1.0.3, JSONStream@^1.0.4:
   version "1.3.5"
   resolved "https://registry.yarnpkg.com/JSONStream/-/JSONStream-1.3.5.tgz#3208c1f08d3a4d99261ab64f92302bc15e111ca0"
   integrity sha512-E+iruNOY8VV9s4JEbe1aNEm6MiszPRr/UfcHMz0TQh1BXSxHK+ASV1R6W4HpjBhSeS+54PIsAMCBmwD06LLsqQ==
@@ -761,14 +761,6 @@ JSONStream@^1.0.3:
     jsonparse "^1.2.0"
     through ">=2.2.7 <3"
 
-JSONStream@^1.0.4:
-  version "1.3.1"
-  resolved "https://registry.yarnpkg.com/JSONStream/-/JSONStream-1.3.1.tgz#707f761e01dae9e16f1bcf93703b78c70966579a"
-  integrity sha1-cH92HgHa6eFvG8+TcDt4xwlmV5o=
-  dependencies:
-    jsonparse "^1.2.0"
-    through ">=2.2.7 <3"
-
 "JSV@>= 4.0.x":
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/JSV/-/JSV-4.0.2.tgz#d077f6825571f82132f9dffaed587b4029feff57"
@@ -789,17 +781,10 @@ acorn-dynamic-import@^4.0.0:
   resolved "https://registry.yarnpkg.com/acorn-dynamic-import/-/acorn-dynamic-import-4.0.0.tgz#482210140582a36b83c3e342e1cfebcaa9240948"
   integrity sha512-d3OEjQV4ROpoflsnUA8HozoIR504TFxNivYEUi6uwz0IYhBkTDXGuWlNdMtybRt3nqVx/L6XqMt0FxkXuWKZhw==
 
-acorn-globals@^4.1.0:
-  version "4.1.0"
-  resolved "https://registry.yarnpkg.com/acorn-globals/-/acorn-globals-4.1.0.tgz#ab716025dbe17c54d3ef81d32ece2b2d99fe2538"
-  integrity sha512-KjZwU26uG3u6eZcfGbTULzFcsoz6pegNKtHPksZPOUsiKo5bUmiBPa38FuHZ/Eun+XYh/JCCkS9AS3Lu4McQOQ==
-  dependencies:
-    acorn "^5.0.0"
-
-acorn-globals@^4.3.0:
-  version "4.3.0"
-  resolved "https://registry.yarnpkg.com/acorn-globals/-/acorn-globals-4.3.0.tgz#e3b6f8da3c1552a95ae627571f7dd6923bb54103"
-  integrity sha512-hMtHj3s5RnuhvHPowpBYvJVj3rAar82JiDQHvGs1zO0l10ocX/xEdBShNHTJaboucJUsScghp74pH3s7EnHHQw==
+acorn-globals@^4.1.0, acorn-globals@^4.3.0:
+  version "4.3.2"
+  resolved "https://registry.yarnpkg.com/acorn-globals/-/acorn-globals-4.3.2.tgz#4e2c2313a597fd589720395f6354b41cd5ec8006"
+  integrity sha512-BbzvZhVtZP+Bs1J1HcwrQe8ycfO0wStkSGxuul3He3GkHOIZ6eTqOkPuw9IP1X3+IkOo4wiJmwkobzXYz4wewQ==
   dependencies:
     acorn "^6.0.1"
     acorn-walk "^6.0.1"
@@ -821,12 +806,7 @@ acorn-node@^1.2.0, acorn-node@^1.3.0, acorn-node@^1.5.2, acorn-node@^1.6.1:
     acorn-walk "^6.1.0"
     xtend "^4.0.1"
 
-acorn-walk@^6.0.1:
-  version "6.1.0"
-  resolved "https://registry.yarnpkg.com/acorn-walk/-/acorn-walk-6.1.0.tgz#c957f4a1460da46af4a0388ce28b4c99355b0cbc"
-  integrity sha512-ugTb7Lq7u4GfWSqqpwE0bGyoBZNMTok/zDBXxfEG0QM50jNlGhIWjRC1pPN7bvV1anhF+bs+/gNcRw+o55Evbg==
-
-acorn-walk@^6.1.0:
+acorn-walk@^6.0.1, acorn-walk@^6.1.0:
   version "6.1.1"
   resolved "https://registry.yarnpkg.com/acorn-walk/-/acorn-walk-6.1.1.tgz#d363b66f5fac5f018ff9c3a1e7b6f8e310cc3913"
   integrity sha512-OtUw6JUTgxA2QoqqmrmQ7F2NYqiBPi/L2jqHyFtllhOUvXYQXf0Z1CYUinIfyT4bTCGmrA7gX9FvHA81uzCoVw==
@@ -863,17 +843,7 @@ ajv-keywords@^2.1.0:
   resolved "https://registry.yarnpkg.com/ajv-keywords/-/ajv-keywords-2.1.0.tgz#a296e17f7bfae7c1ce4f7e0de53d29cb32162df0"
   integrity sha1-opbhf3v658HOT34N5T0pyzIWLfA=
 
-ajv@^5.2.3:
-  version "5.2.3"
-  resolved "https://registry.yarnpkg.com/ajv/-/ajv-5.2.3.tgz#c06f598778c44c6b161abafe3466b81ad1814ed2"
-  integrity sha1-wG9Zh3jETGsWGrr+NGa4GtGBTtI=
-  dependencies:
-    co "^4.6.0"
-    fast-deep-equal "^1.0.0"
-    json-schema-traverse "^0.3.0"
-    json-stable-stringify "^1.0.1"
-
-ajv@^5.3.0:
+ajv@^5.2.3, ajv@^5.3.0:
   version "5.5.2"
   resolved "https://registry.yarnpkg.com/ajv/-/ajv-5.5.2.tgz#73b5eeca3fab653e3d3f9422b341ad42205dc965"
   integrity sha1-c7Xuyj+rZT49P5Qis0GtQiBdyWU=
@@ -925,14 +895,7 @@ ansi-styles@^2.2.1:
   resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-2.2.1.tgz#b432dd3358b634cf75e1e4664368240533c1ddbe"
   integrity sha1-tDLdM1i2NM914eRmQ2gkBTPB3b4=
 
-ansi-styles@^3.1.0:
-  version "3.2.0"
-  resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-3.2.0.tgz#c159b8d5be0f9e5a6f346dab94f16ce022161b88"
-  integrity sha512-NnSOmMEYtVR2JVMIGTzynRkkaxtiq1xnFBcdQD/DnNCYPoEPsVJhM98BDyaoNOQIi7p4okdi3E27eN7GQbsUug==
-  dependencies:
-    color-convert "^1.9.0"
-
-ansi-styles@^3.2.0, ansi-styles@^3.2.1:
+ansi-styles@^3.1.0, ansi-styles@^3.2.0, ansi-styles@^3.2.1:
   version "3.2.1"
   resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-3.2.1.tgz#41fbb20243e50b12be0f04b8dedbf07520ce841d"
   integrity sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==
@@ -1020,23 +983,11 @@ argv@^0.0.2:
   resolved "https://registry.yarnpkg.com/argv/-/argv-0.0.2.tgz#ecbd16f8949b157183711b1bda334f37840185ab"
   integrity sha1-7L0W+JSbFXGDcRsb2jNPN4QBhas=
 
-arr-diff@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/arr-diff/-/arr-diff-2.0.0.tgz#8f3b827f955a8bd669697e4a4256ac3ceae356cf"
-  integrity sha1-jzuCf5Vai9ZpaX5KQlasPOrjVs8=
-  dependencies:
-    arr-flatten "^1.0.1"
-
 arr-diff@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/arr-diff/-/arr-diff-4.0.0.tgz#d6461074febfec71e7e15235761a329a5dc7c520"
   integrity sha1-1kYQdP6/7HHn4VI1dhoyml3HxSA=
 
-arr-flatten@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/arr-flatten/-/arr-flatten-1.0.1.tgz#e5ffe54d45e19f32f216e91eb99c8ce892bb604b"
-  integrity sha1-5f/lTUXhnzLyFukeuZyM6JK7YEs=
-
 arr-flatten@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/arr-flatten/-/arr-flatten-1.1.0.tgz#36048bbff4e7b47e136644316c99669ea5ae91f1"
@@ -1089,11 +1040,6 @@ array-uniq@^1.0.1:
   resolved "https://registry.yarnpkg.com/array-uniq/-/array-uniq-1.0.3.tgz#af6ac877a25cc7f74e058894753858dfdb24fdb6"
   integrity sha1-r2rId6Jcx/dOBYiUdThY39sk/bY=
 
-array-unique@^0.2.1:
-  version "0.2.1"
-  resolved "https://registry.yarnpkg.com/array-unique/-/array-unique-0.2.1.tgz#a1d97ccafcbc2625cc70fadceb36a50c58b01a53"
-  integrity sha1-odl8yvy8JiXMcPrc6zalDFiwGlM=
-
 array-unique@^0.3.2:
   version "0.3.2"
   resolved "https://registry.yarnpkg.com/array-unique/-/array-unique-0.3.2.tgz#a894b75d4bc4f6cd679ef3244a9fd8f46ae2d428"
@@ -1299,15 +1245,6 @@ babel-plugin-syntax-object-rest-spread@^6.13.0:
   resolved "https://registry.yarnpkg.com/babel-plugin-syntax-object-rest-spread/-/babel-plugin-syntax-object-rest-spread-6.13.0.tgz#fd6536f2bce13836ffa3a5458c4903a597bb3bf5"
   integrity sha1-/WU28rzhODb/o6VFjEkDpZe7O/U=
 
-babel-polyfill@6.23.0:
-  version "6.23.0"
-  resolved "https://registry.yarnpkg.com/babel-polyfill/-/babel-polyfill-6.23.0.tgz#8364ca62df8eafb830499f699177466c3b03499d"
-  integrity sha1-g2TKYt+Or7gwSZ9pkXdGbDsDSZ0=
-  dependencies:
-    babel-runtime "^6.22.0"
-    core-js "^2.4.0"
-    regenerator-runtime "^0.10.0"
-
 babel-preset-jest@^24.3.0:
   version "24.3.0"
   resolved "https://registry.yarnpkg.com/babel-preset-jest/-/babel-preset-jest-24.3.0.tgz#db88497e18869f15b24d9c0e547d8e0ab950796d"
@@ -1442,15 +1379,6 @@ brace-expansion@^1.1.7:
     balanced-match "^1.0.0"
     concat-map "0.0.1"
 
-braces@^1.8.2:
-  version "1.8.5"
-  resolved "https://registry.yarnpkg.com/braces/-/braces-1.8.5.tgz#ba77962e12dff969d6b76711e914b737857bf6a7"
-  integrity sha1-uneWLhLf+WnWt2cR6RS3N4V79qc=
-  dependencies:
-    expand-range "^1.8.1"
-    preserve "^0.2.0"
-    repeat-element "^1.1.2"
-
 braces@^2.3.1:
   version "2.3.1"
   resolved "https://registry.yarnpkg.com/braces/-/braces-2.3.1.tgz#7086c913b4e5a08dbe37ac0ee6a2500c4ba691bb"
@@ -1687,11 +1615,6 @@ buffer@^5.0.2, buffer@^5.1.0:
     base64-js "^1.0.2"
     ieee754 "^1.1.4"
 
-builtin-modules@^1.0.0:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/builtin-modules/-/builtin-modules-1.1.1.tgz#270f076c5a72c02f5b65a47df94c5fe3a278892f"
-  integrity sha1-Jw8HbFpywC9bZaR9+Uxf46J4iS8=
-
 builtin-status-codes@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/builtin-status-codes/-/builtin-status-codes-3.0.0.tgz#85982878e21b98e1c66425e03d0174788f569ee8"
@@ -1738,13 +1661,6 @@ cached-path-relative@^1.0.0:
   resolved "https://registry.yarnpkg.com/cached-path-relative/-/cached-path-relative-1.0.2.tgz#a13df4196d26776220cc3356eb147a52dba2c6db"
   integrity sha512-5r2GqsoEb4qMTTN9J+WzXfjov+hjxT+j3u5K+kIVNIwAd99DLCJE9pBIMP1qVeybV6JiijL385Oz0DcYxfbOIg==
 
-cachedir@^1.1.0:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/cachedir/-/cachedir-1.3.0.tgz#5e01928bf2d95b5edd94b0942188246740e0dbc4"
-  integrity sha512-O1ji32oyON9laVPJL1IZ5bmwd2cB46VfpxkDequezH+15FDzzVddEyrGEeX4WusDSqKxdyFdDQDEG1yo1GoWkg==
-  dependencies:
-    os-homedir "^1.0.1"
-
 caching-transform@^3.0.1:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/caching-transform/-/caching-transform-3.0.2.tgz#601d46b91eca87687a281e71cef99791b0efca70"
@@ -1817,7 +1733,16 @@ caseless@~0.12.0:
   resolved "https://registry.yarnpkg.com/caseless/-/caseless-0.12.0.tgz#1b681c21ff84033c826543090689420d187151dc"
   integrity sha1-G2gcIf+EAzyCZUMJBolCDRhxUdw=
 
-chalk@1.1.3, chalk@^1.0.0, chalk@^1.1.3:
+chalk@2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.1.0.tgz#ac5becf14fa21b99c6c92ca7a7d7cfd5b17e743e"
+  integrity sha512-LUHGS/dge4ujbXMJrnihYMcL4AoOweGnw9Tp3kQuqy1Kx5c1qKjqvMJZ6nVJPMWJtKCTN72ZogH3oeSO9g9rXQ==
+  dependencies:
+    ansi-styles "^3.1.0"
+    escape-string-regexp "^1.0.5"
+    supports-color "^4.0.0"
+
+chalk@^1.0.0, chalk@^1.1.3:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/chalk/-/chalk-1.1.3.tgz#a8115c55e4a702fe4d150abd3872822a7e09fc98"
   integrity sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=
@@ -1828,15 +1753,6 @@ chalk@1.1.3, chalk@^1.0.0, chalk@^1.1.3:
     strip-ansi "^3.0.0"
     supports-color "^2.0.0"
 
-chalk@2.1.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.1.0.tgz#ac5becf14fa21b99c6c92ca7a7d7cfd5b17e743e"
-  integrity sha512-LUHGS/dge4ujbXMJrnihYMcL4AoOweGnw9Tp3kQuqy1Kx5c1qKjqvMJZ6nVJPMWJtKCTN72ZogH3oeSO9g9rXQ==
-  dependencies:
-    ansi-styles "^3.1.0"
-    escape-string-regexp "^1.0.5"
-    supports-color "^4.0.0"
-
 chalk@^2.0.0, chalk@^2.0.1, chalk@^2.1.0, chalk@^2.4.1, chalk@^2.4.2:
   version "2.4.2"
   resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.4.2.tgz#cd42541677a54333cf541a49108c1432b44c9424"
@@ -1855,11 +1771,6 @@ chalk@~0.4.0:
     has-color "~0.1.0"
     strip-ansi "~0.1.0"
 
-chardet@^0.4.0:
-  version "0.4.2"
-  resolved "https://registry.yarnpkg.com/chardet/-/chardet-0.4.2.tgz#b5473b33dc97c424e5d98dc87d55d4d8a29c8bf2"
-  integrity sha1-tUc7M9yXxCTl2Y3IfVXU2KKci/I=
-
 chownr@^1.0.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/chownr/-/chownr-1.1.1.tgz#54726b8b8fff4df053c42187e801fb4412df1494"
@@ -2038,28 +1949,6 @@ commander@~2.9.0:
   dependencies:
     graceful-readlink ">= 1.0.0"
 
-commitizen@^2.10.1:
-  version "2.10.1"
-  resolved "https://registry.yarnpkg.com/commitizen/-/commitizen-2.10.1.tgz#8c395def34a895f4e94952c2efc3c9eb4c3683bd"
-  integrity sha1-jDld7zSolfTpSVLC78PJ60w2g70=
-  dependencies:
-    cachedir "^1.1.0"
-    chalk "1.1.3"
-    cz-conventional-changelog "2.0.0"
-    dedent "0.6.0"
-    detect-indent "4.0.0"
-    find-node-modules "1.0.4"
-    find-root "1.0.0"
-    fs-extra "^1.0.0"
-    glob "7.1.1"
-    inquirer "1.2.3"
-    lodash "4.17.5"
-    minimist "1.2.0"
-    opencollective "1.0.3"
-    path-exists "2.1.0"
-    shelljs "0.7.6"
-    strip-json-comments "2.0.1"
-
 commondir@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/commondir/-/commondir-1.0.1.tgz#ddd800da0c66127393cca5950ea968a3aaf1253b"
@@ -2098,7 +1987,7 @@ concat-map@0.0.1:
   resolved "https://registry.yarnpkg.com/concat-map/-/concat-map-0.0.1.tgz#d8a96bd77fd68df7793a73036a3ba0d5405d477b"
   integrity sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=
 
-concat-stream@1.6.2, concat-stream@^1.6.1, concat-stream@~1.6.0:
+concat-stream@1.6.2, concat-stream@^1.4.7, concat-stream@^1.6.0, concat-stream@^1.6.1, concat-stream@~1.6.0:
   version "1.6.2"
   resolved "https://registry.yarnpkg.com/concat-stream/-/concat-stream-1.6.2.tgz#904bdf194cd3122fc675c77fc4ac3d4ff0fd1a34"
   integrity sha512-27HBghJxjiZtIk3Ycvn/4kbJk/1uZuJFfuPEns6LaEvpvG1f0hTea8lilrouyo9mVc2GWdcEZ8OLoGmSADlrCw==
@@ -2108,16 +1997,7 @@ concat-stream@1.6.2, concat-stream@^1.6.1, concat-stream@~1.6.0:
     readable-stream "^2.2.2"
     typedarray "^0.0.6"
 
-concat-stream@^1.4.7, concat-stream@^1.6.0:
-  version "1.6.0"
-  resolved "https://registry.yarnpkg.com/concat-stream/-/concat-stream-1.6.0.tgz#0aac662fd52be78964d5532f694784e70110acf7"
-  integrity sha1-CqxmL9Ur54lk1VMvaUeE5wEQrPc=
-  dependencies:
-    inherits "^2.0.3"
-    readable-stream "^2.2.2"
-    typedarray "^0.0.6"
-
-configstore@^3.0.0:
+configstore@^3.0.0, configstore@^3.1.1:
   version "3.1.2"
   resolved "https://registry.yarnpkg.com/configstore/-/configstore-3.1.2.tgz#c6f25defaeef26df12dd33414b001fe81a543f8f"
   integrity sha512-vtv5HtGjcYUgFrXc6Kx747B83MRRVS5R1VTEQoXvuP+kMI+if6uywV0nDGoiydJRy4yk7h9od5Og0kxx4zUXmw==
@@ -2129,18 +2009,6 @@ configstore@^3.0.0:
     write-file-atomic "^2.0.0"
     xdg-basedir "^3.0.0"
 
-configstore@^3.1.1:
-  version "3.1.1"
-  resolved "https://registry.yarnpkg.com/configstore/-/configstore-3.1.1.tgz#094ee662ab83fad9917678de114faaea8fcdca90"
-  integrity sha512-5oNkD/L++l0O6xGXxb1EWS7SivtjfGQlRyxJsYgE0Z495/L81e2h4/d3r969hoPXuFItzNOKMtsXgYG4c7dYvw==
-  dependencies:
-    dot-prop "^4.1.0"
-    graceful-fs "^4.1.2"
-    make-dir "^1.0.0"
-    unique-string "^1.0.0"
-    write-file-atomic "^2.0.0"
-    xdg-basedir "^3.0.0"
-
 console-browserify@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/console-browserify/-/console-browserify-1.1.0.tgz#f0241c45730a9fc6323b206dbf38edc741d0bb10"
@@ -2285,11 +2153,6 @@ conventional-changelog@^1.1.6:
     conventional-changelog-jscs "^0.1.0"
     conventional-changelog-jshint "^0.2.0"
 
-conventional-commit-types@^2.0.0:
-  version "2.2.0"
-  resolved "https://registry.yarnpkg.com/conventional-commit-types/-/conventional-commit-types-2.2.0.tgz#5db95739d6c212acbe7b6f656a11b940baa68946"
-  integrity sha1-XblXOdbCEqy+e29lahG5QLqmiUY=
-
 conventional-commits-filter@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/conventional-commits-filter/-/conventional-commits-filter-1.0.0.tgz#6fc2a659372bc3f2339cf9ffff7e1b0344b93039"
@@ -2311,18 +2174,13 @@ conventional-commits-parser@^2.0.0:
     through2 "^2.0.0"
     trim-off-newlines "^1.0.0"
 
-convert-source-map@^1.1.0, convert-source-map@^1.6.0:
+convert-source-map@^1.1.0, convert-source-map@^1.4.0, convert-source-map@^1.5.0, convert-source-map@^1.5.1, convert-source-map@^1.6.0:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/convert-source-map/-/convert-source-map-1.6.0.tgz#51b537a8c43e0f04dec1993bffcdd504e758ac20"
   integrity sha512-eFu7XigvxdZ1ETfbgPBohgyQ/Z++C0eEhTor0qRwBw9unw+L0/6V8wkSuGgzdThkiS5lSpdptOQPD8Ak40a+7A==
   dependencies:
     safe-buffer "~5.1.1"
 
-convert-source-map@^1.4.0, convert-source-map@^1.5.0, convert-source-map@^1.5.1:
-  version "1.5.1"
-  resolved "https://registry.yarnpkg.com/convert-source-map/-/convert-source-map-1.5.1.tgz#b8278097b9bc229365de5c62cf5fcaed8b5599e5"
-  integrity sha1-uCeAl7m8IpNl3lxiz1/K7YtVmeU=
-
 convert-source-map@~1.1.0:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/convert-source-map/-/convert-source-map-1.1.3.tgz#4829c877e9fe49b3161f3bf3673888e204699860"
@@ -2338,15 +2196,10 @@ copy-descriptor@^0.1.0:
   resolved "https://registry.yarnpkg.com/copy-descriptor/-/copy-descriptor-0.1.1.tgz#676f6eb3c39997c2ee1ac3a924fd6124748f578d"
   integrity sha1-Z29us8OZl8LuGsOpJP1hJHSPV40=
 
-core-js@^2.4.0:
-  version "2.4.1"
-  resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.4.1.tgz#4de911e667b0eae9124e34254b53aea6fc618d3e"
-  integrity sha1-TekR5mew6ukSTjQlS1OupvxhjT4=
-
-core-js@^2.5.0:
-  version "2.5.5"
-  resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.5.5.tgz#b14dde936c640c0579a6b50cabcc132dd6127e3b"
-  integrity sha1-sU3ek2xkDAV5prUMq8wTLdYSfjs=
+core-js@^2.4.0, core-js@^2.5.0:
+  version "2.6.9"
+  resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.6.9.tgz#6b4b214620c834152e179323727fc19741b084f2"
+  integrity sha512-HOpZf6eXmnl7la+cUdMnLvUxKNqLUzJvgIziQ0DiF3JwSImNphIqdGqzj6hIKyX04MmV0poclQ7+wjWvxQyR2A==
 
 core-util-is@~1.0.0:
   version "1.0.2"
@@ -2489,12 +2342,7 @@ crypto-random-string@^1.0.0:
   resolved "https://registry.yarnpkg.com/crypto-random-string/-/crypto-random-string-1.0.0.tgz#a230f64f568310e1498009940790ec99545bca7e"
   integrity sha1-ojD2T1aDEOFJgAmUB5DsmVRbyn4=
 
-cssom@0.3.x, "cssom@>= 0.3.2 < 0.4.0":
-  version "0.3.2"
-  resolved "https://registry.yarnpkg.com/cssom/-/cssom-0.3.2.tgz#b8036170c79f07a90ff2f16e22284027a243848b"
-  integrity sha1-uANhcMefB6kP8vFuIihAJ6JDhIs=
-
-cssom@^0.3.4:
+cssom@0.3.x, "cssom@>= 0.3.2 < 0.4.0", cssom@^0.3.4:
   version "0.3.4"
   resolved "https://registry.yarnpkg.com/cssom/-/cssom-0.3.4.tgz#8cd52e8a3acfd68d3aed38ee0a640177d2f9d797"
   integrity sha512-+7prCSORpXNeR4/fUP3rL+TzqtiFfhMvTd7uEqMdgPvLPt4+uzFUeufx5RHjGTACCargg/DiEt/moMQmvnfkog==
@@ -2540,18 +2388,6 @@ cycle@1.0.x:
   resolved "https://registry.yarnpkg.com/cycle/-/cycle-1.0.3.tgz#21e80b2be8580f98b468f379430662b046c34ad2"
   integrity sha1-IegLK+hYD5i0aPN5QwZisEbDStI=
 
-cz-conventional-changelog@2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/cz-conventional-changelog/-/cz-conventional-changelog-2.0.0.tgz#55a979afdfe95e7024879d2a0f5924630170b533"
-  integrity sha1-Val5r9/pXnAkh50qD1kkYwFwtTM=
-  dependencies:
-    conventional-commit-types "^2.0.0"
-    lodash.map "^4.5.1"
-    longest "^1.0.1"
-    pad-right "^0.2.2"
-    right-pad "^1.0.1"
-    word-wrap "^1.0.3"
-
 cz-customizable@^5.2.0:
   version "5.2.0"
   resolved "https://registry.yarnpkg.com/cz-customizable/-/cz-customizable-5.2.0.tgz#a172a7a24b1972e8f3d6899f3341a5d330e13fe3"
@@ -2583,16 +2419,7 @@ dashdash@^1.12.0:
   dependencies:
     assert-plus "^1.0.0"
 
-data-urls@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/data-urls/-/data-urls-1.0.0.tgz#24802de4e81c298ea8a9388bb0d8e461c774684f"
-  integrity sha512-ai40PPQR0Fn1lD2PPie79CibnlMN2AYiDhwFX/rZHVsxbs5kNJSjegqXIprhouGXlRdEnfybva7kqRGnB6mypA==
-  dependencies:
-    abab "^1.0.4"
-    whatwg-mimetype "^2.0.0"
-    whatwg-url "^6.4.0"
-
-data-urls@^1.0.1:
+data-urls@^1.0.0, data-urls@^1.0.1:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/data-urls/-/data-urls-1.1.0.tgz#15ee0582baa5e22bb59c77140da8f9c76963bbfe"
   integrity sha512-YTWYI9se1P55u58gL5GkQHW4P6VJBJ5iBT+B5a7i2Tjadhv52paJG0qHX4A0OR6/t52odI64KP2YvFpkDOi3eQ==
@@ -2652,11 +2479,6 @@ decompress-response@^3.3.0:
   dependencies:
     mimic-response "^1.0.0"
 
-dedent@0.6.0:
-  version "0.6.0"
-  resolved "https://registry.yarnpkg.com/dedent/-/dedent-0.6.0.tgz#0e6da8f0ce52838ef5cec5c8f9396b0c1b64a3cb"
-  integrity sha1-Dm2o8M5Sg471zsXI+TlrDBtko8s=
-
 deep-extend@^0.6.0:
   version "0.6.0"
   resolved "https://registry.yarnpkg.com/deep-extend/-/deep-extend-0.6.0.tgz#c4fa7c95404a17a9c3e8ca7e1537312b736330ac"
@@ -2755,14 +2577,7 @@ details-element-polyfill@2.2.0:
   resolved "https://registry.yarnpkg.com/details-element-polyfill/-/details-element-polyfill-2.2.0.tgz#1c0bb65372c20f622e90974b9694ae204d4c8d8c"
   integrity sha512-Sjg+A4q3Mrn2JKQu58zsreuHqAb4M0qe4eK5ZQAIBuch9i8nx6MlKWCxx0z8s59MMen9I4WXavzW5z+BnkIC0A==
 
-detect-file@^0.1.0:
-  version "0.1.0"
-  resolved "https://registry.yarnpkg.com/detect-file/-/detect-file-0.1.0.tgz#4935dedfd9488648e006b0129566e9386711ea63"
-  integrity sha1-STXe39lIhkjgBrASlWbpOGcR6mM=
-  dependencies:
-    fs-exists-sync "^0.1.0"
-
-detect-indent@4.0.0, detect-indent@^4.0.0:
+detect-indent@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/detect-indent/-/detect-indent-4.0.0.tgz#f76d064352cdf43a1cb6ce619c4ee3a9475de208"
   integrity sha1-920GQ1LN9Docts5hnE7jqUdd4gg=
@@ -3158,13 +2973,6 @@ exit@^0.1.2:
   resolved "https://registry.yarnpkg.com/exit/-/exit-0.1.2.tgz#0632638f8d877cc82107d30a0fff1a17cba1cd0c"
   integrity sha1-BjJjj42HfMghB9MKD/8aF8uhzQw=
 
-expand-brackets@^0.1.4:
-  version "0.1.5"
-  resolved "https://registry.yarnpkg.com/expand-brackets/-/expand-brackets-0.1.5.tgz#df07284e342a807cd733ac5af72411e581d1177b"
-  integrity sha1-3wcoTjQqgHzXM6xa9yQR5YHRF3s=
-  dependencies:
-    is-posix-bracket "^0.1.0"
-
 expand-brackets@^2.1.4:
   version "2.1.4"
   resolved "https://registry.yarnpkg.com/expand-brackets/-/expand-brackets-2.1.4.tgz#b77735e315ce30f6b6eff0f83b04151a22449622"
@@ -3178,25 +2986,11 @@ expand-brackets@^2.1.4:
     snapdragon "^0.8.1"
     to-regex "^3.0.1"
 
-expand-range@^1.8.1:
-  version "1.8.2"
-  resolved "https://registry.yarnpkg.com/expand-range/-/expand-range-1.8.2.tgz#a299effd335fe2721ebae8e257ec79644fc85337"
-  integrity sha1-opnv/TNf4nIeuujiV+x5ZE/IUzc=
-  dependencies:
-    fill-range "^2.1.0"
-
 expand-template@^2.0.3:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/expand-template/-/expand-template-2.0.3.tgz#6e14b3fcee0f3a6340ecb57d2e8918692052a47c"
   integrity sha512-XYfuKMvj4O35f/pOXLObndIRvyQ+/+6AhODh+OKWj9S9498pHHn/IMszH+gt0fBCRWMNfk1ZSp5x3AifmnI2vg==
 
-expand-tilde@^1.2.2:
-  version "1.2.2"
-  resolved "https://registry.yarnpkg.com/expand-tilde/-/expand-tilde-1.2.2.tgz#0b81eba897e5a3d31d1c3d102f8f01441e559449"
-  integrity sha1-C4HrqJflo9MdHD0QL48BRB5VlEk=
-  dependencies:
-    os-homedir "^1.0.1"
-
 expect@^24.3.0:
   version "24.3.0"
   resolved "https://registry.yarnpkg.com/expect/-/expect-24.3.0.tgz#84c2bff9d3eaf4ffe088ec13e84a7d7a8d014945"
@@ -3238,15 +3032,6 @@ external-editor@^1.1.0:
     spawn-sync "^1.0.15"
     tmp "^0.0.29"
 
-external-editor@^2.0.1:
-  version "2.2.0"
-  resolved "https://registry.yarnpkg.com/external-editor/-/external-editor-2.2.0.tgz#045511cfd8d133f3846673d1047c154e214ad3d5"
-  integrity sha512-bSn6gvGxKt+b7+6TKEv1ZycHleA7aHhRHyAqJyp5pbUFuYYNIzpZnQDk7AsYckyWdEnTeAnay0aCy2aV6iTk9A==
-  dependencies:
-    chardet "^0.4.0"
-    iconv-lite "^0.4.17"
-    tmp "^0.0.33"
-
 external-editor@^2.0.4:
   version "2.0.5"
   resolved "https://registry.yarnpkg.com/external-editor/-/external-editor-2.0.5.tgz#52c249a3981b9ba187c7cacf5beb50bf1d91a6bc"
@@ -3256,13 +3041,6 @@ external-editor@^2.0.4:
     jschardet "^1.4.2"
     tmp "^0.0.33"
 
-extglob@^0.3.1:
-  version "0.3.2"
-  resolved "https://registry.yarnpkg.com/extglob/-/extglob-0.3.2.tgz#2e18ff3d2f49ab2765cec9023f011daa8d8349a1"
-  integrity sha1-Lhj/PS9JqydlzskCPwEdqo2DSaE=
-  dependencies:
-    is-extglob "^1.0.0"
-
 extglob@^2.0.4:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/extglob/-/extglob-2.0.4.tgz#ad00fe4dc612a9232e8718711dc5cb5ab0285543"
@@ -3371,11 +3149,6 @@ file-entry-cache@^2.0.0:
     flat-cache "^1.2.1"
     object-assign "^4.0.1"
 
-filename-regex@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/filename-regex/-/filename-regex-2.0.0.tgz#996e3e80479b98b9897f15a8a58b3d084e926775"
-  integrity sha1-mW4+gEebmLmJfxWopYs9CE6SZ3U=
-
 filename-reserved-regex@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/filename-reserved-regex/-/filename-reserved-regex-1.0.0.tgz#e61cf805f0de1c984567d0386dc5df50ee5af7e4"
@@ -3406,17 +3179,6 @@ fileset@^2.0.3:
     glob "^7.0.3"
     minimatch "^3.0.3"
 
-fill-range@^2.1.0:
-  version "2.2.4"
-  resolved "https://registry.yarnpkg.com/fill-range/-/fill-range-2.2.4.tgz#eb1e773abb056dcd8df2bfdf6af59b8b3a936565"
-  integrity sha512-cnrcCbj01+j2gTG921VZPnHbjmdAf8oQV/iGeV2kZxGSyfYjjTyY79ErsK1WJWMpw6DaApEX72binqJE+/d+5Q==
-  dependencies:
-    is-number "^2.1.0"
-    isobject "^2.0.0"
-    randomatic "^3.0.0"
-    repeat-element "^1.1.2"
-    repeat-string "^1.5.2"
-
 fill-range@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/fill-range/-/fill-range-4.0.0.tgz#d544811d428f98eb06a63dc402d2403c328c38f7"
@@ -3443,19 +3205,6 @@ find-config@0.3.0:
   dependencies:
     user-home "^1.1.1"
 
-find-node-modules@1.0.4:
-  version "1.0.4"
-  resolved "https://registry.yarnpkg.com/find-node-modules/-/find-node-modules-1.0.4.tgz#b6deb3cccb699c87037677bcede2c5f5862b2550"
-  integrity sha1-tt6zzMtpnIcDdne87eLF9YYrJVA=
-  dependencies:
-    findup-sync "0.4.2"
-    merge "^1.2.0"
-
-find-root@1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/find-root/-/find-root-1.0.0.tgz#962ff211aab25c6520feeeb8d6287f8f6e95807a"
-  integrity sha1-li/yEaqyXGUg/u641ih/j26VgHo=
-
 find-up@^1.0.0:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/find-up/-/find-up-1.1.2.tgz#6b2e9822b1a2ce0a60ab64d610eccad53cb24d0f"
@@ -3478,16 +3227,6 @@ find-up@^3.0.0:
   dependencies:
     locate-path "^3.0.0"
 
-findup-sync@0.4.2:
-  version "0.4.2"
-  resolved "https://registry.yarnpkg.com/findup-sync/-/findup-sync-0.4.2.tgz#a8117d0f73124f5a4546839579fe52d7129fb5e5"
-  integrity sha1-qBF9D3MST1pFRoOVef5S1xKfteU=
-  dependencies:
-    detect-file "^0.1.0"
-    is-glob "^2.0.1"
-    micromatch "^2.3.7"
-    resolve-dir "^0.1.0"
-
 first-chunk-stream@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/first-chunk-stream/-/first-chunk-stream-1.0.0.tgz#59bfb50cd905f60d7c394cd3d9acaab4e6ad934e"
@@ -3517,23 +3256,11 @@ follow-redirects@^1.3.0:
   dependencies:
     debug "^3.2.6"
 
-for-in@^0.1.5:
-  version "0.1.6"
-  resolved "https://registry.yarnpkg.com/for-in/-/for-in-0.1.6.tgz#c9f96e89bfad18a545af5ec3ed352a1d9e5b4dc8"
-  integrity sha1-yfluib+tGKVFr17D7TUqHZ5bTcg=
-
 for-in@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/for-in/-/for-in-1.0.2.tgz#81068d295a8142ec0ac726c6e2200c30fb6d5e80"
   integrity sha1-gQaNKVqBQuwKxybG4iAMMPttXoA=
 
-for-own@^0.1.3:
-  version "0.1.4"
-  resolved "https://registry.yarnpkg.com/for-own/-/for-own-0.1.4.tgz#0149b41a39088c7515f51ebe1c1386d45f935072"
-  integrity sha1-AUm0GjkIjHUV9R6+HBOG1F+TUHI=
-  dependencies:
-    for-in "^0.1.5"
-
 foreach@^2.0.5:
   version "2.0.5"
   resolved "https://registry.yarnpkg.com/foreach/-/foreach-2.0.5.tgz#0bee005018aeb260d0a3af3ae658dd0136ec1b99"
@@ -3573,20 +3300,6 @@ fs-constants@^1.0.0:
   resolved "https://registry.yarnpkg.com/fs-constants/-/fs-constants-1.0.0.tgz#6be0de9be998ce16af8afc24497b9ee9b7ccd9ad"
   integrity sha512-y6OAwoSIf7FyjMIv94u+b5rdheZEjzR63GTyZJm5qh4Bi+2YgwLCcI/fPFZkL5PSixOt6ZNKm+w+Hfp/Bciwow==
 
-fs-exists-sync@^0.1.0:
-  version "0.1.0"
-  resolved "https://registry.yarnpkg.com/fs-exists-sync/-/fs-exists-sync-0.1.0.tgz#982d6893af918e72d08dec9e8673ff2b5a8d6add"
-  integrity sha1-mC1ok6+RjnLQjeyehnP/K1qNat0=
-
-fs-extra@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-1.0.0.tgz#cd3ce5f7e7cb6145883fcae3191e9877f8587950"
-  integrity sha1-zTzl9+fLYUWIP8rjGR6Yd/hYeVA=
-  dependencies:
-    graceful-fs "^4.1.2"
-    jsonfile "^2.1.0"
-    klaw "^1.0.0"
-
 fs-extra@^7.0.0:
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-7.0.0.tgz#8cc3f47ce07ef7b3593a11b9fb245f7e34c041d6"
@@ -3735,21 +3448,6 @@ github-from-package@0.0.0:
   resolved "https://registry.yarnpkg.com/github-from-package/-/github-from-package-0.0.0.tgz#97fb5d96bfde8973313f20e8288ef9a167fa64ce"
   integrity sha1-l/tdlr/eiXMxPyDoKI75oWf6ZM4=
 
-glob-base@^0.3.0:
-  version "0.3.0"
-  resolved "https://registry.yarnpkg.com/glob-base/-/glob-base-0.3.0.tgz#dbb164f6221b1c0b1ccf82aea328b497df0ea3c4"
-  integrity sha1-27Fk9iIbHAscz4Kuoyi0l98Oo8Q=
-  dependencies:
-    glob-parent "^2.0.0"
-    is-glob "^2.0.0"
-
-glob-parent@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/glob-parent/-/glob-parent-2.0.0.tgz#81383d72db054fcccf5336daa902f182f6edbb28"
-  integrity sha1-gTg9ctsFT8zPUzbaqQLxgvbtuyg=
-  dependencies:
-    is-glob "^2.0.0"
-
 glob-parent@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/glob-parent/-/glob-parent-3.1.0.tgz#9e6af6299d8d3bd2bd40430832bd113df906c5ae"
@@ -3763,19 +3461,7 @@ glob-to-regexp@^0.3.0:
   resolved "https://registry.yarnpkg.com/glob-to-regexp/-/glob-to-regexp-0.3.0.tgz#8c5a1494d2066c570cc3bfe4496175acc4d502ab"
   integrity sha1-jFoUlNIGbFcMw7/kSWF1rMTVAqs=
 
-glob@7.1.1:
-  version "7.1.1"
-  resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.1.tgz#805211df04faaf1c63a3600306cdf5ade50b2ec8"
-  integrity sha1-gFIR3wT6rxxjo2ADBs31reULLsg=
-  dependencies:
-    fs.realpath "^1.0.0"
-    inflight "^1.0.4"
-    inherits "2"
-    minimatch "^3.0.2"
-    once "^1.3.0"
-    path-is-absolute "^1.0.0"
-
-glob@^7.0.0, glob@^7.0.3, glob@^7.0.5, glob@^7.1.0, glob@^7.1.1, glob@^7.1.2, glob@^7.1.3, glob@^7.1.4:
+glob@^7.0.0, glob@^7.0.3, glob@^7.1.0, glob@^7.1.1, glob@^7.1.2, glob@^7.1.3, glob@^7.1.4:
   version "7.1.4"
   resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.4.tgz#aa608a2f6c577ad357e1ae5a5c26d9a8d1969255"
   integrity sha512-hkLPepehmnKk41pUGm3sYxoFs/umurYfYJCerbXEyFIWcAzvpipAgVkBqqT9RBKMGjnq6kMuyYwha6csxbiM1A==
@@ -3794,33 +3480,10 @@ global-dirs@^0.1.0:
   dependencies:
     ini "^1.3.4"
 
-global-modules@^0.2.3:
-  version "0.2.3"
-  resolved "https://registry.yarnpkg.com/global-modules/-/global-modules-0.2.3.tgz#ea5a3bed42c6d6ce995a4f8a1269b5dae223828d"
-  integrity sha1-6lo77ULG1s6ZWk+KEmm12uIjgo0=
-  dependencies:
-    global-prefix "^0.1.4"
-    is-windows "^0.2.0"
-
-global-prefix@^0.1.4:
-  version "0.1.5"
-  resolved "https://registry.yarnpkg.com/global-prefix/-/global-prefix-0.1.5.tgz#8d3bc6b8da3ca8112a160d8d496ff0462bfef78f"
-  integrity sha1-jTvGuNo8qBEqFg2NSW/wRiv+948=
-  dependencies:
-    homedir-polyfill "^1.0.0"
-    ini "^1.3.4"
-    is-windows "^0.2.0"
-    which "^1.2.12"
-
-globals@^11.0.1:
-  version "11.4.0"
-  resolved "https://registry.yarnpkg.com/globals/-/globals-11.4.0.tgz#b85c793349561c16076a3c13549238a27945f1bc"
-  integrity sha512-Dyzmifil8n/TmSqYDEXbm+C8yitzJQqQIlJQLNRMwa+BOUJpRC19pyVeN12JAjt61xonvXjtff+hJruTRXn5HA==
-
-globals@^11.1.0:
-  version "11.11.0"
-  resolved "https://registry.yarnpkg.com/globals/-/globals-11.11.0.tgz#dcf93757fa2de5486fbeed7118538adf789e9c2e"
-  integrity sha512-WHq43gS+6ufNOEqlrDBxVEbb8ntfXrfAUU2ZOpCxrBdGKW3gyv8mCxAfIBD0DroPKGrJ2eSsXsLtY9MPntsyTw==
+globals@^11.0.1, globals@^11.1.0:
+  version "11.12.0"
+  resolved "https://registry.yarnpkg.com/globals/-/globals-11.12.0.tgz#ab8795338868a0babd8525758018c2a7eb95c42e"
+  integrity sha512-WOBp/EEGUiIsJSp7wcv/y6MO+lV9UoncWqxuFfm8eBwzWNgyfBd6Gz+IeKQ9jCmyhoH99g15M3T+QaVHFjizVA==
 
 globals@^9.18.0:
   version "9.18.0"
@@ -3880,7 +3543,7 @@ got@^6.7.1:
     unzip-response "^2.0.1"
     url-parse-lax "^1.0.0"
 
-graceful-fs@^4.1.0, graceful-fs@^4.1.11, graceful-fs@^4.1.15, graceful-fs@^4.1.2, graceful-fs@^4.1.6, graceful-fs@^4.1.9:
+graceful-fs@^4.1.0, graceful-fs@^4.1.11, graceful-fs@^4.1.15, graceful-fs@^4.1.2, graceful-fs@^4.1.6:
   version "4.1.15"
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.1.15.tgz#ffb703e1066e8a0eeaa4c8b80ba9253eeefbfb00"
   integrity sha512-6uHUhOPEBgQ24HM+r6b/QwWfZq+yiFcipKFrOFiBEnWdy5sdzYoi+pJeQaPI5qOLRFqWmAXUPQNsielzdLoecA==
@@ -4037,13 +3700,6 @@ home-or-tmp@^2.0.0:
     os-homedir "^1.0.0"
     os-tmpdir "^1.0.1"
 
-homedir-polyfill@^1.0.0:
-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/homedir-polyfill/-/homedir-polyfill-1.0.3.tgz#743298cef4e5af3e194161fbadcc2151d3a058e8"
-  integrity sha512-eSmmWE5bZTK2Nou4g0AI3zZ9rswp7GRKoKXS1BLUkvPviOqs4YTN1djQIqrXy9k5gEtdLPy86JjRwsNM9tnDcA==
-  dependencies:
-    parse-passwd "^1.0.0"
-
 hosted-git-info@^2.1.4:
   version "2.1.5"
   resolved "https://registry.yarnpkg.com/hosted-git-info/-/hosted-git-info-2.1.5.tgz#0ba81d90da2e25ab34a332e6ec77936e1598118b"
@@ -4096,17 +3752,7 @@ humanize-url@^1.0.0:
     normalize-url "^1.0.0"
     strip-url-auth "^1.0.0"
 
-iconv-lite@0.4.13:
-  version "0.4.13"
-  resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.13.tgz#1f88aba4ab0b1508e8312acc39345f36e992e2f2"
-  integrity sha1-H4irpKsLFQjoMSrMOTRfNumS4vI=
-
-iconv-lite@0.4.19, iconv-lite@^0.4.17:
-  version "0.4.19"
-  resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.19.tgz#f7468f60135f5e5dad3399c0a81be9a1603a082b"
-  integrity sha512-oTZqweIP51xaGPI4uPa56/Pri/480R+mo7SeU+YETByQNhDG55ycFyNLIgta9vXhILrxXDmF7ZGhqZIcuN0gJQ==
-
-iconv-lite@0.4.24, iconv-lite@~0.4.13:
+iconv-lite@0.4.24, iconv-lite@^0.4.17, iconv-lite@~0.4.13:
   version "0.4.24"
   resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.24.tgz#2022b4b25fbddc21d2f524974a474aafe733908b"
   integrity sha512-v3MXnZAcvnywkTUEZomIActle7RXXeedOR31wwl7VlyoXO4Qi9arvSenNQWne1TcRwhCL1HwLI21bEqdpj8/rA==
@@ -4226,25 +3872,6 @@ inquirer@1.2.3:
     strip-ansi "^3.0.0"
     through "^2.3.6"
 
-inquirer@3.0.6:
-  version "3.0.6"
-  resolved "https://registry.yarnpkg.com/inquirer/-/inquirer-3.0.6.tgz#e04aaa9d05b7a3cb9b0f407d04375f0447190347"
-  integrity sha1-4EqqnQW3o8ubD0B9BDdfBEcZA0c=
-  dependencies:
-    ansi-escapes "^1.1.0"
-    chalk "^1.0.0"
-    cli-cursor "^2.1.0"
-    cli-width "^2.0.0"
-    external-editor "^2.0.1"
-    figures "^2.0.0"
-    lodash "^4.3.0"
-    mute-stream "0.0.7"
-    run-async "^2.2.0"
-    rx "^4.1.0"
-    string-width "^2.0.0"
-    strip-ansi "^3.0.0"
-    through "^2.3.6"
-
 inquirer@^3.0.6, inquirer@^3.3.0:
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/inquirer/-/inquirer-3.3.0.tgz#9dd2f2ad765dcab1ff0443b491442a20ba227dc9"
@@ -4281,11 +3908,6 @@ insert-module-globals@^7.0.0:
     undeclared-identifiers "^1.1.2"
     xtend "^4.0.0"
 
-interpret@^1.0.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/interpret/-/interpret-1.2.0.tgz#d5061a6224be58e8083985f5014d844359576296"
-  integrity sha512-mT34yGKMNceBQUoVn7iCDKDntA7SC6gycMAWzGx1z/CMCTV7b2AAtXlo3nRyHZ1FelRkQbQjprHSYGwzLtkVbw==
-
 intl-messageformat-parser@1.4.0, intl-messageformat-parser@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/intl-messageformat-parser/-/intl-messageformat-parser-1.4.0.tgz#b43d45a97468cadbe44331d74bb1e8dea44fc075"
@@ -4349,13 +3971,6 @@ is-buffer@^1.0.2, is-buffer@^1.1.0, is-buffer@^1.1.5:
   resolved "https://registry.yarnpkg.com/is-buffer/-/is-buffer-1.1.6.tgz#efaa2ea9daa0d7ab2ea13a97b2b8ad51fefbe8be"
   integrity sha512-NcdALwpXkTm5Zvvbk7owOUSvVvBKDgKP5/ewfXEznmQFfs4ZRmanOeKBTjRVjka3QFoN6XJ+9F3USqfHqTaU5w==
 
-is-builtin-module@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/is-builtin-module/-/is-builtin-module-1.0.0.tgz#540572d34f7ac3119f8f76c30cbc1b1e037affbe"
-  integrity sha1-VAVy0096wxGfj3bDDLwbHgN6/74=
-  dependencies:
-    builtin-modules "^1.0.0"
-
 is-callable@^1.1.1, is-callable@^1.1.3:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/is-callable/-/is-callable-1.1.3.tgz#86eb75392805ddc33af71c92a0eedf74ee7604b2"
@@ -4412,18 +4027,6 @@ is-descriptor@^1.0.0, is-descriptor@^1.0.2:
     is-data-descriptor "^1.0.0"
     kind-of "^6.0.2"
 
-is-dotfile@^1.0.0:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/is-dotfile/-/is-dotfile-1.0.2.tgz#2c132383f39199f8edc268ca01b9b007d205cc4d"
-  integrity sha1-LBMjg/ORmfjtwmjKAbmwB9IFzE0=
-
-is-equal-shallow@^0.1.3:
-  version "0.1.3"
-  resolved "https://registry.yarnpkg.com/is-equal-shallow/-/is-equal-shallow-0.1.3.tgz#2238098fc221de0bcfa5d9eac4c45d638aa1c534"
-  integrity sha1-IjgJj8Ih3gvPpdnqxMRdY4qhxTQ=
-  dependencies:
-    is-primitive "^2.0.0"
-
 is-extendable@^0.1.0, is-extendable@^0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/is-extendable/-/is-extendable-0.1.1.tgz#62b110e289a471418e3ec36a617d472e301dfc89"
@@ -4436,11 +4039,6 @@ is-extendable@^1.0.1:
   dependencies:
     is-plain-object "^2.0.4"
 
-is-extglob@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/is-extglob/-/is-extglob-1.0.0.tgz#ac468177c4943405a092fc8f29760c6ffc6206c0"
-  integrity sha1-rEaBd8SUNAWgkvyPKXYMb/xiBsA=
-
 is-extglob@^2.1.0, is-extglob@^2.1.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/is-extglob/-/is-extglob-2.1.1.tgz#a88c02535791f02ed37c76a1b9ea9773c833f8c2"
@@ -4470,13 +4068,6 @@ is-generator-fn@^2.0.0:
   resolved "https://registry.yarnpkg.com/is-generator-fn/-/is-generator-fn-2.0.0.tgz#038c31b774709641bda678b1f06a4e3227c10b3e"
   integrity sha512-elzyIdM7iKoFHzcrndIqjYomImhxrFRnGP3galODoII4TB9gI7mZ+FnlLQmmjf27SxHS2gKEeyhX5/+YRS6H9g==
 
-is-glob@^2.0.0, is-glob@^2.0.1:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/is-glob/-/is-glob-2.0.1.tgz#d096f926a3ded5600f3fdfd91198cb0888c2d863"
-  integrity sha1-0Jb5JqPe1WAPP9/ZEZjLCIjC2GM=
-  dependencies:
-    is-extglob "^1.0.0"
-
 is-glob@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/is-glob/-/is-glob-3.1.0.tgz#7ba5ae24217804ac70707b96922567486cc3e84a"
@@ -4504,13 +4095,6 @@ is-npm@^1.0.0:
   resolved "https://registry.yarnpkg.com/is-npm/-/is-npm-1.0.0.tgz#f2fb63a65e4905b406c86072765a1a4dc793b9f4"
   integrity sha1-8vtjpl5JBbQGyGBydloaTceTufQ=
 
-is-number@^2.1.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/is-number/-/is-number-2.1.0.tgz#01fcbbb393463a548f2f466cce16dece49db908f"
-  integrity sha1-Afy7s5NGOlSPL0ZszhbezknbkI8=
-  dependencies:
-    kind-of "^3.0.2"
-
 is-number@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/is-number/-/is-number-3.0.0.tgz#24fd6201a4782cf50561c810276afc7d12d71195"
@@ -4566,16 +4150,6 @@ is-plain-object@^2.0.1, is-plain-object@^2.0.3, is-plain-object@^2.0.4:
   dependencies:
     isobject "^3.0.1"
 
-is-posix-bracket@^0.1.0:
-  version "0.1.1"
-  resolved "https://registry.yarnpkg.com/is-posix-bracket/-/is-posix-bracket-0.1.1.tgz#3334dc79774368e92f016e6fbc0a88f5cd6e6bc4"
-  integrity sha1-MzTceXdDaOkvAW5vvAqI9c1ua8Q=
-
-is-primitive@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/is-primitive/-/is-primitive-2.0.0.tgz#207bab91638499c07b2adf240a41a87210034575"
-  integrity sha1-IHurkWOEmcB7Kt8kCkGochADRXU=
-
 is-promise@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/is-promise/-/is-promise-2.1.0.tgz#79a2a9ece7f096e80f36d2b2f3bc16c1ff4bf3fa"
@@ -4637,11 +4211,6 @@ is-utf8@^0.2.0:
   resolved "https://registry.yarnpkg.com/is-utf8/-/is-utf8-0.2.1.tgz#4b0da1442104d1b336340e80797e865cf39f7d72"
   integrity sha1-Sw2hRCEE0bM2NA6AeX6GXPOffXI=
 
-is-windows@^0.2.0:
-  version "0.2.0"
-  resolved "https://registry.yarnpkg.com/is-windows/-/is-windows-0.2.0.tgz#de1aa6d63ea29dd248737b69f1ff8b8002d2108c"
-  integrity sha1-3hqm1j6indJIc3tp8f+LgALSEIw=
-
 is-windows@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/is-windows/-/is-windows-1.0.2.tgz#d1850eb9791ecd18e6182ce12a30f396634bb19d"
@@ -5248,13 +4817,6 @@ json-stable-stringify-without-jsonify@^1.0.1:
   resolved "https://registry.yarnpkg.com/json-stable-stringify-without-jsonify/-/json-stable-stringify-without-jsonify-1.0.1.tgz#9db7b59496ad3f3cfef30a75142d2d930ad72651"
   integrity sha1-nbe1lJatPzz+8wp1FC0tkwrXJlE=
 
-json-stable-stringify@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/json-stable-stringify/-/json-stable-stringify-1.0.1.tgz#9a759d39c5f2ff503fd5300646ed445f88c4f9af"
-  integrity sha1-mnWdOcXy/1A/1TAGRu1EX4jE+a8=
-  dependencies:
-    jsonify "~0.0.0"
-
 json-stable-stringify@~0.0.0:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/json-stable-stringify/-/json-stable-stringify-0.0.1.tgz#611c23e814db375527df851193db59dd2af27f45"
@@ -5279,13 +4841,6 @@ json5@^2.1.0:
   dependencies:
     minimist "^1.2.0"
 
-jsonfile@^2.1.0:
-  version "2.4.0"
-  resolved "https://registry.yarnpkg.com/jsonfile/-/jsonfile-2.4.0.tgz#3736a2b428b87bbda0cc83b53fa3d633a35c2ae8"
-  integrity sha1-NzaitCi4e72gzIO1P6PWM6NcKug=
-  optionalDependencies:
-    graceful-fs "^4.1.6"
-
 jsonfile@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/jsonfile/-/jsonfile-4.0.0.tgz#8771aae0799b64076b76640fca058f9c10e33ecb"
@@ -5361,13 +4916,6 @@ kind-of@^6.0.0, kind-of@^6.0.2:
   resolved "https://registry.yarnpkg.com/kind-of/-/kind-of-6.0.2.tgz#01146b36a6218e64e58f3a8d66de5d7fc6f6d051"
   integrity sha512-s5kLOcnH0XqDO+FvuaLX8DDjZ18CGFk7VygH40QoKPUQhW4e2rvM0rwUq0t8IQDOwYSeLK01U90OjzBTme2QqA==
 
-klaw@^1.0.0:
-  version "1.3.1"
-  resolved "https://registry.yarnpkg.com/klaw/-/klaw-1.3.1.tgz#4088433b46b3b1ba259d78785d8e96f73ba02439"
-  integrity sha1-QIhDO0azsbolnXh4XY6W9zugJDk=
-  optionalDependencies:
-    graceful-fs "^4.1.9"
-
 kleur@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/kleur/-/kleur-3.0.2.tgz#83c7ec858a41098b613d5998a7b653962b504f68"
@@ -5518,11 +5066,6 @@ lodash.isplainobject@^4.0.6:
   resolved "https://registry.yarnpkg.com/lodash.isplainobject/-/lodash.isplainobject-4.0.6.tgz#7c526a52d89b45c45cc690b88163be0497f550cb"
   integrity sha1-fFJqUtibRcRcxpC4gWO+BJf1UMs=
 
-lodash.map@^4.5.1:
-  version "4.6.0"
-  resolved "https://registry.yarnpkg.com/lodash.map/-/lodash.map-4.6.0.tgz#771ec7839e3473d9c4cde28b19394c3562f4f6d3"
-  integrity sha1-dx7Hg540c9nEzeKLGTlMNWL09tM=
-
 lodash.memoize@~3.0.3:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/lodash.memoize/-/lodash.memoize-3.0.4.tgz#2dcbd2c287cbc0a55cc42328bd0c736150d53e3f"
@@ -5558,11 +5101,6 @@ lodash.union@^4.6.0:
   resolved "https://registry.yarnpkg.com/lodash.union/-/lodash.union-4.6.0.tgz#48bb5088409f16f1821666641c44dd1aaae3cd88"
   integrity sha1-SLtQiECfFvGCFmZkHETdGqrjzYg=
 
-lodash@4.17.5:
-  version "4.17.5"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.5.tgz#99a92d65c0272debe8c96b6057bc8fbfa3bed511"
-  integrity sha512-svL3uiZf1RwhH+cWrfZn3A4+U58wbP0tGVTLQPbjplZxZ8ROD9VLuNgsRniTlLe7OlSqR79RUehXgpBW/s0IQw==
-
 lodash@^4.0.0, lodash@^4.1.0, lodash@^4.13.1, lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.3, lodash@^4.17.4, lodash@^4.2.1, lodash@^4.3.0:
   version "4.17.11"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.11.tgz#b39ea6229ef607ecd89e2c8df12536891cac9b8d"
@@ -5573,11 +5111,6 @@ log-driver@^1.2.7:
   resolved "https://registry.yarnpkg.com/log-driver/-/log-driver-1.2.7.tgz#63b95021f0702fedfa2c9bb0a24e7797d71871d8"
   integrity sha512-U7KCmLdqsGHBLeWqYlFA0V0Sl6P08EE1ZrmA9cxjUE0WVqT9qnyVDPz1kzpFEP0jdJuFnasWIfSd7fsaNXkpbg==
 
-longest@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/longest/-/longest-1.0.1.tgz#30a0b2da38f73770e8294a0d22e6625ed77d0097"
-  integrity sha1-MKCy2jj3N3DoKUoNIuZiXtd9AJc=
-
 lookup-closest-locale@6.0.4:
   version "6.0.4"
   resolved "https://registry.yarnpkg.com/lookup-closest-locale/-/lookup-closest-locale-6.0.4.tgz#1279fed7546a601647bbc980f64423ee990a8590"
@@ -5623,14 +5156,7 @@ magic-string@^0.22.4:
   dependencies:
     vlq "^0.2.2"
 
-make-dir@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/make-dir/-/make-dir-1.0.0.tgz#97a011751e91dd87cfadef58832ebb04936de978"
-  integrity sha1-l6ARdR6R3YfPre9Ygy67BJNt6Xg=
-  dependencies:
-    pify "^2.3.0"
-
-make-dir@^1.3.0:
+make-dir@^1.0.0, make-dir@^1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/make-dir/-/make-dir-1.3.0.tgz#79c1033b80515bd6d24ec9933e860ca75ee27f0c"
   integrity sha512-2w31R7SJtieJJnQtGc7RVL2StM2vGYVfqUOvUDxH6bC6aJTxPxTF0GnIgCyu7tjockiUWAYQRbxa7vKn34s5sQ==
@@ -5681,11 +5207,6 @@ marky@^1.2.0:
   resolved "https://registry.yarnpkg.com/marky/-/marky-1.2.0.tgz#9617ed647bbbea8f45d19526da33dec70606df42"
   integrity sha1-lhftZHu76o9F0ZUm2jPexwYG30I=
 
-math-random@^1.0.1:
-  version "1.0.4"
-  resolved "https://registry.yarnpkg.com/math-random/-/math-random-1.0.4.tgz#5dd6943c938548267016d4e34f057583080c514c"
-  integrity sha512-rUxjysqif/BZQH2yhd5Aaq7vXMSx9NdEsQcyA07uEzIvxgI7zIr33gGsh+RU0/XjmQpCW7RsVof1vlkvQVCK5A==
-
 md5.js@^1.3.4:
   version "1.3.5"
   resolved "https://registry.yarnpkg.com/md5.js/-/md5.js-1.3.5.tgz#b5d07b8e3216e3e27cd728d72f70d1e6a342005f"
@@ -5746,35 +5267,11 @@ merge2@^1.2.1:
   resolved "https://registry.yarnpkg.com/merge2/-/merge2-1.2.3.tgz#7ee99dbd69bb6481689253f018488a1b902b0ed5"
   integrity sha512-gdUU1Fwj5ep4kplwcmftruWofEFt6lfpkkr3h860CXbAB9c3hGb55EOL2ali0Td5oebvW0E1+3Sr+Ur7XfKpRA==
 
-merge@^1.2.0:
-  version "1.2.1"
-  resolved "https://registry.yarnpkg.com/merge/-/merge-1.2.1.tgz#38bebf80c3220a8a487b6fcfb3941bb11720c145"
-  integrity sha512-VjFo4P5Whtj4vsLzsYBu5ayHhoHJ0UqNm7ibvShmbmoz7tGi0vXaoJbGdB+GmDMLUdg8DpQXEIeVDAe8MaABvQ==
-
 metaviewport-parser@0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/metaviewport-parser/-/metaviewport-parser-0.2.0.tgz#535c3ce1ccf6223a5025fddc6a1c36505f7e7db1"
   integrity sha1-U1w84cz2IjpQJf3cahw2UF9+fbE=
 
-micromatch@^2.3.7:
-  version "2.3.11"
-  resolved "https://registry.yarnpkg.com/micromatch/-/micromatch-2.3.11.tgz#86677c97d1720b363431d04d0d15293bd38c1565"
-  integrity sha1-hmd8l9FyCzY0MdBNDRUpO9OMFWU=
-  dependencies:
-    arr-diff "^2.0.0"
-    array-unique "^0.2.1"
-    braces "^1.8.2"
-    expand-brackets "^0.1.4"
-    extglob "^0.3.1"
-    filename-regex "^2.0.0"
-    is-extglob "^1.0.0"
-    is-glob "^2.0.1"
-    kind-of "^3.0.2"
-    normalize-path "^2.0.1"
-    object.omit "^2.0.0"
-    parse-glob "^3.0.4"
-    regex-cache "^0.4.2"
-
 micromatch@^3.1.10, micromatch@^3.1.4:
   version "3.1.10"
   resolved "https://registry.yarnpkg.com/micromatch/-/micromatch-3.1.10.tgz#70859bc95c9840952f359a068a3fc49f9ecfac23"
@@ -5863,7 +5360,7 @@ minimist@0.0.8, minimist@~0.0.1:
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
   integrity sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=
 
-minimist@1.2.0, minimist@^1.1.0, minimist@^1.1.1, minimist@^1.1.3, minimist@^1.2.0:
+minimist@^1.1.0, minimist@^1.1.1, minimist@^1.1.3, minimist@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.0.tgz#a35008b20f41383eec1fb914f4cd5df79a264284"
   integrity sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=
@@ -5984,14 +5481,6 @@ node-abi@^2.7.0:
   dependencies:
     semver "^5.4.1"
 
-node-fetch@1.6.3:
-  version "1.6.3"
-  resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-1.6.3.tgz#dc234edd6489982d58e8f0db4f695029abcd8c04"
-  integrity sha1-3CNO3WSJmC1Y6PDbT2lQKavNjAQ=
-  dependencies:
-    encoding "^0.1.11"
-    is-stream "^1.0.1"
-
 node-fetch@^1.0.1:
   version "1.7.3"
   resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-1.7.3.tgz#980f6f72d85211a5347c6b2bc18c5b84c3eb47ef"
@@ -6043,23 +5532,13 @@ noop-logger@^0.1.1:
   resolved "https://registry.yarnpkg.com/noop-logger/-/noop-logger-0.1.1.tgz#94a2b1633c4f1317553007d8966fd0e841b6a4c2"
   integrity sha1-lKKxYzxPExdVMAfYlm/Q6EG2pMI=
 
-normalize-package-data@^2.3.0, normalize-package-data@^2.3.5:
-  version "2.4.0"
-  resolved "https://registry.yarnpkg.com/normalize-package-data/-/normalize-package-data-2.4.0.tgz#12f95a307d58352075a04907b84ac8be98ac012f"
-  integrity sha512-9jjUFbTPfEy3R/ad/2oNbKtW9Hgovl5O1FvFWKkKblNXoN/Oou6+9+KKohPK13Yc3/TyunyWhJp6gvRNR/PPAw==
-  dependencies:
-    hosted-git-info "^2.1.4"
-    is-builtin-module "^1.0.0"
-    semver "2 || 3 || 4 || 5"
-    validate-npm-package-license "^3.0.1"
-
-normalize-package-data@^2.3.2, normalize-package-data@^2.3.4:
-  version "2.3.5"
-  resolved "https://registry.yarnpkg.com/normalize-package-data/-/normalize-package-data-2.3.5.tgz#8d924f142960e1777e7ffe170543631cc7cb02df"
-  integrity sha1-jZJPFClg4Xd+f/4XBUNjHMfLAt8=
+normalize-package-data@^2.3.0, normalize-package-data@^2.3.2, normalize-package-data@^2.3.4, normalize-package-data@^2.3.5:
+  version "2.5.0"
+  resolved "https://registry.yarnpkg.com/normalize-package-data/-/normalize-package-data-2.5.0.tgz#e66db1838b200c1dfc233225d12cb36520e234a8"
+  integrity sha512-/5CMN3T0R4XTj4DcGaexo+roZSdSFW/0AOOTROrjxzCG1wrWXEsGbRKevjlIL+ZDE4sZlJr5ED4YW0yqmkK+eA==
   dependencies:
     hosted-git-info "^2.1.4"
-    is-builtin-module "^1.0.0"
+    resolve "^1.10.0"
     semver "2 || 3 || 4 || 5"
     validate-npm-package-license "^3.0.1"
 
@@ -6070,11 +5549,6 @@ normalize-path@^2.0.0, normalize-path@^2.1.1:
   dependencies:
     remove-trailing-separator "^1.0.1"
 
-normalize-path@^2.0.1:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/normalize-path/-/normalize-path-2.0.1.tgz#47886ac1662760d4261b7d979d241709d3ce3f7a"
-  integrity sha1-R4hqwWYnYNQmG32XnSQXCdPOP3o=
-
 normalize-path@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/normalize-path/-/normalize-path-3.0.0.tgz#0dcd69ff23a1c9b11fd0978316644a0388216a65"
@@ -6206,14 +5680,6 @@ object.getownpropertydescriptors@^2.0.3:
     define-properties "^1.1.2"
     es-abstract "^1.5.1"
 
-object.omit@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/object.omit/-/object.omit-2.0.0.tgz#868597333d54e60662940bb458605dd6ae12fe94"
-  integrity sha1-hoWXMz1U5gZilAu0WGBd1q4S/pQ=
-  dependencies:
-    for-own "^0.1.3"
-    is-extendable "^0.1.1"
-
 object.pick@^1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/object.pick/-/object.pick-1.3.0.tgz#87a10ac4c1694bd2e1cbf53591a66141fb5dd747"
@@ -6240,18 +5706,6 @@ onetime@^2.0.0:
   dependencies:
     mimic-fn "^1.0.0"
 
-opencollective@1.0.3:
-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/opencollective/-/opencollective-1.0.3.tgz#aee6372bc28144583690c3ca8daecfc120dd0ef1"
-  integrity sha1-ruY3K8KBRFg2kMPKja7PwSDdDvE=
-  dependencies:
-    babel-polyfill "6.23.0"
-    chalk "1.1.3"
-    inquirer "3.0.6"
-    minimist "1.2.0"
-    node-fetch "1.6.3"
-    opn "4.0.2"
-
 opn@4.0.2:
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/opn/-/opn-4.0.2.tgz#7abc22e644dff63b0a96d5ab7f2790c0f01abc95"
@@ -6401,13 +5855,6 @@ package-json@^4.0.0:
     registry-url "^3.0.3"
     semver "^5.1.0"
 
-pad-right@^0.2.2:
-  version "0.2.2"
-  resolved "https://registry.yarnpkg.com/pad-right/-/pad-right-0.2.2.tgz#6fbc924045d244f2a2a244503060d3bfc6009774"
-  integrity sha1-b7ySQEXSRPKiokRQMGDTv8YAl3Q=
-  dependencies:
-    repeat-string "^1.5.2"
-
 pako@~1.0.5:
   version "1.0.8"
   resolved "https://registry.yarnpkg.com/pako/-/pako-1.0.8.tgz#6844890aab9c635af868ad5fecc62e8acbba3ea4"
@@ -6442,16 +5889,6 @@ parse-github-repo-url@^1.3.0:
   resolved "https://registry.yarnpkg.com/parse-github-repo-url/-/parse-github-repo-url-1.4.1.tgz#9e7d8bb252a6cb6ba42595060b7bf6df3dbc1f50"
   integrity sha1-nn2LslKmy2ukJZUGC3v23z28H1A=
 
-parse-glob@^3.0.4:
-  version "3.0.4"
-  resolved "https://registry.yarnpkg.com/parse-glob/-/parse-glob-3.0.4.tgz#b2c376cfb11f35513badd173ef0bb6e3a388391c"
-  integrity sha1-ssN2z7EfNVE7rdFz7wu246OIORw=
-  dependencies:
-    glob-base "^0.3.0"
-    is-dotfile "^1.0.0"
-    is-extglob "^1.0.0"
-    is-glob "^2.0.0"
-
 parse-json@^2.2.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/parse-json/-/parse-json-2.2.0.tgz#f480f40434ef80741f8469099f8dea18f55a4dc9"
@@ -6467,11 +5904,6 @@ parse-json@^4.0.0:
     error-ex "^1.3.1"
     json-parse-better-errors "^1.0.1"
 
-parse-passwd@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/parse-passwd/-/parse-passwd-1.0.0.tgz#6d5b934a456993b23d37f40a382d6f1666a8e5c6"
-  integrity sha1-bVuTSkVpk7I9N/QKOC1vFmao5cY=
-
 parse5@4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/parse5/-/parse5-4.0.0.tgz#6d78656e3da8d78b4ec0b906f7c08ef1dfe3f608"
@@ -6497,7 +5929,7 @@ path-dirname@^1.0.0:
   resolved "https://registry.yarnpkg.com/path-dirname/-/path-dirname-1.0.2.tgz#cc33d24d525e099a5388c0336c6e32b9160609e0"
   integrity sha1-zDPSTVJeCZpTiMAzbG4yuRYGCeA=
 
-path-exists@2.1.0, path-exists@^2.0.0:
+path-exists@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/path-exists/-/path-exists-2.1.0.tgz#0feb6c64f0fc518d9a754dd5efb62c7022761f4b"
   integrity sha1-D+tsZPD8UY2adU3V77YscCJ2H0s=
@@ -6524,11 +5956,6 @@ path-key@^2.0.0, path-key@^2.0.1:
   resolved "https://registry.yarnpkg.com/path-key/-/path-key-2.0.1.tgz#411cadb574c5a140d3a4b1910d40d80cc9f40b40"
   integrity sha1-QRyttXTFoUDTpLGRDUDYDMn0C0A=
 
-path-parse@^1.0.5:
-  version "1.0.5"
-  resolved "https://registry.yarnpkg.com/path-parse/-/path-parse-1.0.5.tgz#3c1adf871ea9cd6c9431b6ea2bd74a0ff055c4c1"
-  integrity sha1-PBrfhx6pzWyUMbbqK9dKD/BVxME=
-
 path-parse@^1.0.6:
   version "1.0.6"
   resolved "https://registry.yarnpkg.com/path-parse/-/path-parse-1.0.6.tgz#d62dbb5679405d72c4737ec58600e9ddcf06d24c"
@@ -6669,11 +6096,6 @@ prepend-http@^1.0.0, prepend-http@^1.0.1:
   resolved "https://registry.yarnpkg.com/prepend-http/-/prepend-http-1.0.4.tgz#d4f4562b0ce3696e41ac52d0e002e57a635dc6dc"
   integrity sha1-1PRWKwzjaW5BrFLQ4ALlemNdxtw=
 
-preserve@^0.2.0:
-  version "0.2.0"
-  resolved "https://registry.yarnpkg.com/preserve/-/preserve-0.2.0.tgz#815ed1f6ebc65926f865b310c0713bcb3315ce4b"
-  integrity sha1-gV7R9uvGWSb4ZbMQwHE7yzMVzks=
-
 prettier@^1.14.3:
   version "1.14.3"
   resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.14.3.tgz#90238dd4c0684b7edce5f83b0fb7328e48bd0895"
@@ -6705,11 +6127,6 @@ private@^0.1.7:
   resolved "https://registry.yarnpkg.com/private/-/private-0.1.8.tgz#2381edb3689f7a53d653190060fcf822d2f368ff"
   integrity sha512-VvivMrbvd2nKkiG38qjULzlc+4Vx4wm/whI9pQD35YrARNnhxeiRktSOhSukRLFNlzg6Br/cJPet5J/u19r/mg==
 
-process-nextick-args@~1.0.6:
-  version "1.0.7"
-  resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-1.0.7.tgz#150e20b756590ad3f91093f25a4f2ad8bff30ba3"
-  integrity sha1-FQ4gt1ZZCtP5EJPyWk8q2L/zC6M=
-
 process-nextick-args@~2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-2.0.0.tgz#a37d732f4271b4ab1ad070d35508e8290788ffaa"
@@ -6743,15 +6160,10 @@ pseudomap@^1.0.2:
   resolved "https://registry.yarnpkg.com/pseudomap/-/pseudomap-1.0.2.tgz#f052a28da70e618917ef0a8ac34c1ae5a68286b3"
   integrity sha1-8FKijacOYYkX7wqKw0wa5aaChrM=
 
-psl@^1.1.24:
-  version "1.1.29"
-  resolved "https://registry.yarnpkg.com/psl/-/psl-1.1.29.tgz#60f580d360170bb722a797cc704411e6da850c67"
-  integrity sha512-AeUmQ0oLN02flVHXWh9sSJF7mcdFq0ppid/JkErufc3hGIV/AMa8Fo9VgDo/cT2jFdOWoFvHp90qqBH54W+gjQ==
-
-psl@^1.1.28:
-  version "1.1.31"
-  resolved "https://registry.yarnpkg.com/psl/-/psl-1.1.31.tgz#e9aa86d0101b5b105cbe93ac6b784cd547276184"
-  integrity sha512-/6pt4+C+T+wZUieKR620OpzN/LlnNKuWjy1iFLQ/UG35JqHlR/89MP1d96dUfkf6Dne3TuLQzOYEYshJ+Hx8mw==
+psl@^1.1.24, psl@^1.1.28:
+  version "1.1.33"
+  resolved "https://registry.yarnpkg.com/psl/-/psl-1.1.33.tgz#5533d9384ca7aab86425198e10e8053ebfeab661"
+  integrity sha512-LTDP2uSrsc7XCb5lO7A8BI1qYxRe/8EqlRvMeEl6rsnYAqDOl8xHR+8lSAIVfrNaSAlTPTNOCgNjWcoUL3AZsw==
 
 public-encrypt@^4.0.0:
   version "4.0.3"
@@ -6855,15 +6267,6 @@ quote-stream@^1.0.1, quote-stream@~1.0.2:
     minimist "^1.1.3"
     through2 "^2.0.0"
 
-randomatic@^3.0.0:
-  version "3.1.1"
-  resolved "https://registry.yarnpkg.com/randomatic/-/randomatic-3.1.1.tgz#b776efc59375984e36c537b2f51a1f0aff0da1ed"
-  integrity sha512-TuDE5KxZ0J461RVjrJZCJc+J+zCkTb1MbH9AQUq68sMhOMcy9jLcb3BrZKgp9q9Ncltdg4QVqWrH02W2EFFVYw==
-  dependencies:
-    is-number "^4.0.0"
-    kind-of "^6.0.0"
-    math-random "^1.0.1"
-
 randombytes@^2.0.0, randombytes@^2.0.1, randombytes@^2.0.5:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/randombytes/-/randombytes-2.1.0.tgz#df6f84372f0270dc65cdf6291349ab7a473d4f2a"
@@ -6957,7 +6360,7 @@ read-pkg@^3.0.0:
     normalize-package-data "^2.3.2"
     path-type "^3.0.0"
 
-readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.5, readable-stream@^2.0.6, readable-stream@^2.1.5, readable-stream@^2.2.2, readable-stream@^2.3.0, readable-stream@^2.3.5, readable-stream@^2.3.6, readable-stream@~2.3.3:
+readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.5, readable-stream@^2.0.6, readable-stream@^2.2.2, readable-stream@^2.3.0, readable-stream@^2.3.5, readable-stream@^2.3.6, readable-stream@~2.3.3, readable-stream@~2.3.6:
   version "2.3.6"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.6.tgz#b11c27d88b8ff1fbe070643cf94b0c79ae1b0aaf"
   integrity sha512-tQtKA9WIAhBF3+VLAseyMqZeBjW0AHJoxOtYqSUZNJxauErmLbVm2FW1y+J/YA9dUrAC39ITejlZWhVIwawkKw==
@@ -6970,18 +6373,6 @@ readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable
     string_decoder "~1.1.1"
     util-deprecate "~1.0.1"
 
-readable-stream@~2.0.0:
-  version "2.0.6"
-  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.0.6.tgz#8f90341e68a53ccc928788dacfcd11b36eb9b78e"
-  integrity sha1-j5A0HmilPMySh4jaz80Rs265t44=
-  dependencies:
-    core-util-is "~1.0.0"
-    inherits "~2.0.1"
-    isarray "~1.0.0"
-    process-nextick-args "~1.0.6"
-    string_decoder "~0.10.x"
-    util-deprecate "~1.0.1"
-
 realpath-native@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/realpath-native/-/realpath-native-1.1.0.tgz#2003294fea23fb0672f2476ebe22fcf498a2d65c"
@@ -6989,13 +6380,6 @@ realpath-native@^1.1.0:
   dependencies:
     util.promisify "^1.0.0"
 
-rechoir@^0.6.2:
-  version "0.6.2"
-  resolved "https://registry.yarnpkg.com/rechoir/-/rechoir-0.6.2.tgz#85204b54dba82d5742e28c96756ef43af50e3384"
-  integrity sha1-hSBLVNuoLVdC4oyWdW70OvUOM4Q=
-  dependencies:
-    resolve "^1.1.6"
-
 redent@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/redent/-/redent-1.0.0.tgz#cf916ab1fd5f1f16dfb20822dd6ec7f730c2afde"
@@ -7004,24 +6388,11 @@ redent@^1.0.0:
     indent-string "^2.1.0"
     strip-indent "^1.0.1"
 
-regenerator-runtime@^0.10.0:
-  version "0.10.5"
-  resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.10.5.tgz#336c3efc1220adcedda2c9fab67b5a7955a33658"
-  integrity sha1-M2w+/BIgrc7dosn6tntaeVWjNlg=
-
 regenerator-runtime@^0.11.0:
   version "0.11.1"
   resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.11.1.tgz#be05ad7f9bf7d22e056f9726cee5017fbf19e2e9"
   integrity sha512-MguG95oij0fC3QV3URf4V2SDYGJhJnJGqvIIgdECeODCT98wSWDAJ94SSuVpYQUoTcGUIL6L4yNB7j1DFFHSBg==
 
-regex-cache@^0.4.2:
-  version "0.4.3"
-  resolved "https://registry.yarnpkg.com/regex-cache/-/regex-cache-0.4.3.tgz#9b1a6c35d4d0dfcef5711ae651e8e9d3d7114145"
-  integrity sha1-mxpsNdTQ3871cRrmUejp09cRQUU=
-  dependencies:
-    is-equal-shallow "^0.1.3"
-    is-primitive "^2.0.0"
-
 regex-not@^1.0.0, regex-not@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/regex-not/-/regex-not-1.0.2.tgz#1f4ece27e00b0b65e0247a6810e6a85d83a5752c"
@@ -7067,11 +6438,6 @@ repeat-element@^1.1.2:
   resolved "https://registry.yarnpkg.com/repeat-element/-/repeat-element-1.1.2.tgz#ef089a178d1483baae4d93eb98b4f9e4e11d990a"
   integrity sha1-7wiaF40Ug7quTZPrmLT55OEdmQo=
 
-repeat-string@^1.5.2:
-  version "1.5.4"
-  resolved "https://registry.yarnpkg.com/repeat-string/-/repeat-string-1.5.4.tgz#64ec0c91e0f4b475f90d5b643651e3e6e5b6c2d5"
-  integrity sha1-ZOwMkeD0tHX5DVtkNlHj5uW2wtU=
-
 repeat-string@^1.6.1:
   version "1.6.1"
   resolved "https://registry.yarnpkg.com/repeat-string/-/repeat-string-1.6.1.tgz#8dcae470e1c88abc2d600fff4a776286da75e637"
@@ -7151,14 +6517,6 @@ resolve-cwd@^2.0.0:
   dependencies:
     resolve-from "^3.0.0"
 
-resolve-dir@^0.1.0:
-  version "0.1.1"
-  resolved "https://registry.yarnpkg.com/resolve-dir/-/resolve-dir-0.1.1.tgz#b219259a5602fac5c5c496ad894a6e8cc430261e"
-  integrity sha1-shklmlYC+sXFxJatiUpujMQwJh4=
-  dependencies:
-    expand-tilde "^1.2.2"
-    global-modules "^0.2.3"
-
 resolve-from@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-1.0.1.tgz#26cbfe935d1aeeeabb29bc3fe5aeb01e93d44226"
@@ -7184,20 +6542,13 @@ resolve@1.1.7:
   resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.1.7.tgz#203114d82ad2c5ed9e8e0411b3932875e889e97b"
   integrity sha1-IDEU2CrSxe2ejgQRs5ModeiJ6Xs=
 
-resolve@^1.1.4, resolve@^1.1.6, resolve@^1.3.2, resolve@^1.4.0:
-  version "1.10.0"
-  resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.10.0.tgz#3bdaaeaf45cc07f375656dfd2e54ed0810b101ba"
-  integrity sha512-3sUr9aq5OfSg2S9pNtPA9hL1FVEAjvfOC4leW0SNf/mpnaakz2a9femSd6LqAww2RaFctwyf1lCqnTHuF1rxDg==
+resolve@^1.1.4, resolve@^1.1.5, resolve@^1.10.0, resolve@^1.3.2, resolve@^1.4.0:
+  version "1.11.0"
+  resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.11.0.tgz#4014870ba296176b86343d50b60f3b50609ce232"
+  integrity sha512-WL2pBDjqT6pGUNSUzMw00o4T7If+z4H2x3Gz893WoUQ5KW8Vr9txp00ykiP16VBaZF5+j/OcXJHZ9+PCvdiDKw==
   dependencies:
     path-parse "^1.0.6"
 
-resolve@^1.1.5:
-  version "1.8.1"
-  resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.8.1.tgz#82f1ec19a423ac1fbd080b0bab06ba36e84a7a26"
-  integrity sha512-AicPrAC7Qu1JxPCZ9ZgCZlY35QgFnNqc+0LtbRNxnVw4TXvjQ72wnuL9JQcEBgXkI9JM8MsT9kaQoHcpCRJOYA==
-  dependencies:
-    path-parse "^1.0.5"
-
 restore-cursor@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/restore-cursor/-/restore-cursor-1.0.1.tgz#34661f46886327fed2991479152252df92daa541"
@@ -7219,26 +6570,7 @@ ret@~0.1.10:
   resolved "https://registry.yarnpkg.com/ret/-/ret-0.1.15.tgz#b8a4825d5bdb1fc3f6f53c2bc33f81388681c7bc"
   integrity sha512-TTlYpa+OL+vMMNG24xSlQGEJ3B/RzEfUlLct7b5G/ytav+wPrplCpVMFuwzXbkecJrb6IYo1iFb0S9v37754mg==
 
-right-pad@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/right-pad/-/right-pad-1.0.1.tgz#8ca08c2cbb5b55e74dafa96bf7fd1a27d568c8d0"
-  integrity sha1-jKCMLLtbVedNr6lr9/0aJ9VoyNA=
-
-rimraf@^2.2.8, rimraf@^2.6.1:
-  version "2.6.1"
-  resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.6.1.tgz#c2338ec643df7a1b7fe5c54fa86f57428a55f33d"
-  integrity sha1-wjOOxkPfeht/5cVPqG9XQopV8z0=
-  dependencies:
-    glob "^7.0.5"
-
-rimraf@^2.5.4, rimraf@^2.6.2:
-  version "2.6.2"
-  resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.6.2.tgz#2ed8150d24a16ea8651e6d6ef0f47c4158ce7a36"
-  integrity sha512-lreewLK/BlghmxtfH36YYVg1i8IAce4TI7oao75I1g245+6BctqTVQiBP3YUJ9C6DQOXJmkYR9X9fCLtCOJc5w==
-  dependencies:
-    glob "^7.0.5"
-
-rimraf@^2.6.3:
+rimraf@^2.2.8, rimraf@^2.5.4, rimraf@^2.6.1, rimraf@^2.6.2, rimraf@^2.6.3:
   version "2.6.3"
   resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.6.3.tgz#b2d104fe0d8fb27cf9e0a1cda8262dd3833c6cab"
   integrity sha512-mwqeW5XsA2qAejG46gYdENaxXjx9onRNCfn7L0duuP4hCuTIi/QO7PDK07KJfp1d+izWPrzEJDcSqBa0OZQriA==
@@ -7348,30 +6680,10 @@ semver-diff@^2.0.0:
   dependencies:
     semver "^5.0.3"
 
-"semver@2 || 3 || 4 || 5", semver@^5.3.0:
-  version "5.3.0"
-  resolved "https://registry.yarnpkg.com/semver/-/semver-5.3.0.tgz#9b2ce5d3de02d17c6012ad326aa6b4d0cf54f94f"
-  integrity sha1-myzl094C0XxgEq0yaqa00M9U+U8=
-
-semver@^5.0.1:
-  version "5.4.1"
-  resolved "https://registry.yarnpkg.com/semver/-/semver-5.4.1.tgz#e059c09d8571f0540823733433505d3a2f00b18e"
-  integrity sha512-WfG/X9+oATh81XtllIo/I8gOiY9EXRdv1cQdyykeXK17YcUW3EXUAi2To4pcH6nZtJPr7ZOpM5OMyWJZm+8Rsg==
-
-semver@^5.0.3, semver@^5.1.0, semver@^5.6.0:
-  version "5.6.0"
-  resolved "https://registry.yarnpkg.com/semver/-/semver-5.6.0.tgz#7e74256fbaa49c75aa7c7a205cc22799cac80004"
-  integrity sha512-RS9R6R35NYgQn++fkDWaOmqGoj4Ek9gGs+DPxNUZKuwE183xjJroKvyo1IzVFeXvUrvmALy6FWD5xrdJT25gMg==
-
-semver@^5.4.1:
-  version "5.5.0"
-  resolved "https://registry.yarnpkg.com/semver/-/semver-5.5.0.tgz#dc4bbc7a6ca9d916dee5d43516f0092b58f7b8ab"
-  integrity sha512-4SJ3dm0WAwWy/NVeioZh5AntkdJoWKxHxcmyP622fOkgHa4z3R0TdBJICINyaSDE6uNwVc8gZr+ZinwZAH4xIA==
-
-semver@^5.5.0:
-  version "5.5.1"
-  resolved "https://registry.yarnpkg.com/semver/-/semver-5.5.1.tgz#7dfdd8814bdb7cabc7be0fb1d734cfb66c940477"
-  integrity sha512-PqpAxfrEhlSUWge8dwIp4tZnQ25DIOthpiaHNIthsjEFQD6EvqUKUDM7L8O2rShkFccYo1VjJR0coWfNkCubRw==
+"semver@2 || 3 || 4 || 5", semver@^5.0.1, semver@^5.0.3, semver@^5.1.0, semver@^5.3.0, semver@^5.4.1, semver@^5.5.0, semver@^5.6.0:
+  version "5.7.0"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-5.7.0.tgz#790a7cf6fea5459bac96110b29b60412dc8ff96b"
+  integrity sha512-Ya52jSX2u7QKghxeoFGpLwCtGlt7j0oY9DYb5apt9nPlJ42ID+ulTXESnt/qAQcoSERyZ5sl3LDIOw0nAn/5DA==
 
 set-blocking@^2.0.0, set-blocking@~2.0.0:
   version "2.0.0"
@@ -7441,26 +6753,12 @@ shell-quote@^1.6.1:
     array-reduce "~0.0.0"
     jsonify "~0.0.0"
 
-shelljs@0.7.6:
-  version "0.7.6"
-  resolved "https://registry.yarnpkg.com/shelljs/-/shelljs-0.7.6.tgz#379cccfb56b91c8601e4793356eb5382924de9ad"
-  integrity sha1-N5zM+1a5HIYB5HkzVutTgpJN6a0=
-  dependencies:
-    glob "^7.0.0"
-    interpret "^1.0.0"
-    rechoir "^0.6.2"
-
 shellwords@^0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/shellwords/-/shellwords-0.1.1.tgz#d6b9181c1a48d397324c84871efbcfc73fc0654b"
   integrity sha512-vFwSUfQvqybiICwZY5+DAWIPLKsWO31Q91JSKl3UYv+K5c2QRPzn0qzec6QPu1Qc9eHYItiP3NdJqNVqetYAww==
 
-signal-exit@^3.0.0:
-  version "3.0.1"
-  resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-3.0.1.tgz#5a4c884992b63a7acd9badb7894c3ee9cfccad81"
-  integrity sha1-WkyISZK2OnrNm623iUw+6c/MrYE=
-
-signal-exit@^3.0.2:
+signal-exit@^3.0.0, signal-exit@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-3.0.2.tgz#b5fdc08f1287ea1178628e415e25132b73646c6d"
   integrity sha1-tf3AjxKH6hF4Yo5BXiUTK3NkbG0=
@@ -7569,7 +6867,7 @@ source-map-url@^0.4.0:
   resolved "https://registry.yarnpkg.com/source-map-url/-/source-map-url-0.4.0.tgz#3e935d7ddd73631b97659956d55128e87b5084a3"
   integrity sha1-PpNdfd1zYxuXZZlW1VEo6HtQhKM=
 
-source-map@^0.5.0, source-map@^0.5.6, source-map@^0.5.7, source-map@~0.5.3:
+source-map@^0.5.0, source-map@^0.5.6, source-map@^0.5.7, source-map@~0.5.1, source-map@~0.5.3:
   version "0.5.7"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.7.tgz#8a039d2d1021d22d1ea14c80d8ea468ba2ef3fcc"
   integrity sha1-igOdLRAh0i0eoUyA2OpGi6LvP8w=
@@ -7579,11 +6877,6 @@ source-map@^0.6.0, source-map@^0.6.1, source-map@~0.6.1:
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.6.1.tgz#74722af32e9614e9c287a8d0bbde48b5e2f1a263"
   integrity sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==
 
-source-map@~0.5.1:
-  version "0.5.6"
-  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.6.tgz#75ce38f52bf0733c5a7f0c118d81334a2bb5f412"
-  integrity sha1-dc449SvwczxafwwRjYEzSiu19BI=
-
 spawn-sync@^1.0.15:
   version "1.0.15"
   resolved "https://registry.yarnpkg.com/spawn-sync/-/spawn-sync-1.0.15.tgz#b00799557eb7fb0c8376c29d44e8a1ea67e57476"
@@ -7798,11 +7091,6 @@ string_decoder@^1.1.1:
   dependencies:
     safe-buffer "~5.1.0"
 
-string_decoder@~0.10.x:
-  version "0.10.31"
-  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-0.10.31.tgz#62e203bc41766c6c28c9fc84301dab1c5310fa94"
-  integrity sha1-YuIDvEF2bGwoyfyEMB2rHFMQ+pQ=
-
 string_decoder@~1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.1.1.tgz#9cf1611ba62685d7030ae9e4ba34149c3af03fc8"
@@ -7868,7 +7156,7 @@ strip-indent@^1.0.1:
   dependencies:
     get-stdin "^4.0.1"
 
-strip-json-comments@2.0.1, strip-json-comments@~2.0.1:
+strip-json-comments@~2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/strip-json-comments/-/strip-json-comments-2.0.1.tgz#3c531942e908c2697c0ec344858c286c7ca0a60a"
   integrity sha1-PFMZQukIwml8DsNEhYwobHygpgo=
@@ -8022,20 +7310,12 @@ throat@^4.0.0:
   resolved "https://registry.yarnpkg.com/throat/-/throat-4.1.0.tgz#89037cbc92c56ab18926e6ba4cbb200e15672a6a"
   integrity sha1-iQN8vJLFarGJJua6TLsgDhVnKmo=
 
-through2@^2.0.0:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/through2/-/through2-2.0.1.tgz#384e75314d49f32de12eebb8136b8eb6b5d59da9"
-  integrity sha1-OE51MU1J8y3hLuu4E2uOtrXVnak=
-  dependencies:
-    readable-stream "~2.0.0"
-    xtend "~4.0.0"
-
-through2@^2.0.2, through2@~2.0.3:
-  version "2.0.3"
-  resolved "https://registry.yarnpkg.com/through2/-/through2-2.0.3.tgz#0004569b37c7c74ba39c43f3ced78d1ad94140be"
-  integrity sha1-AARWmzfHx0ujnEPzzteNGtlBQL4=
+through2@^2.0.0, through2@^2.0.2, through2@~2.0.3:
+  version "2.0.5"
+  resolved "https://registry.yarnpkg.com/through2/-/through2-2.0.5.tgz#01c1e39eb31d07cb7d03a96a70823260b23132cd"
+  integrity sha512-/mrRod8xqpA+IHSLyGCQ2s8SPHiCDEeQJSep1jqLYeEUClOFG2Qsh+4FU6G9VeqpZnGW/Su8LQGc4YKni5rYSQ==
   dependencies:
-    readable-stream "^2.1.5"
+    readable-stream "~2.3.6"
     xtend "~4.0.1"
 
 through@2, "through@>=2.2.7 <3", through@^2.3.6:
@@ -8128,7 +7408,7 @@ tough-cookie@>=2.3.3:
     psl "^1.1.28"
     punycode "^2.1.1"
 
-tough-cookie@^2.3.3:
+tough-cookie@^2.3.3, tough-cookie@^2.4.3:
   version "2.5.0"
   resolved "https://registry.yarnpkg.com/tough-cookie/-/tough-cookie-2.5.0.tgz#cd9fb2a0aa1d5a12b473bd9fb96fa3dcff65ade2"
   integrity sha512-nlLsUzgm1kfLXSXfRZMc1KLAugd4hqJHDTvc2hDIwS3mZAfMEuMbc03SujMF+GEcpaX/qboeycw6iO8JwVv2+g==
@@ -8136,7 +7416,7 @@ tough-cookie@^2.3.3:
     psl "^1.1.28"
     punycode "^2.1.1"
 
-tough-cookie@^2.4.3, tough-cookie@~2.4.3:
+tough-cookie@~2.4.3:
   version "2.4.3"
   resolved "https://registry.yarnpkg.com/tough-cookie/-/tough-cookie-2.4.3.tgz#53f36da3f47783b0925afa06ff9f3b165280f781"
   integrity sha512-Q5srk/4vDM54WJsJio3XNn6K2sCG+CQ8G5Wz6bZhRZoAe/+TxjWB/GlFAnYEbkYVlON9FMk/fE3h2RLpPXo4lQ==
@@ -8438,21 +7718,7 @@ webidl-conversions@^4.0.2:
   resolved "https://registry.yarnpkg.com/webidl-conversions/-/webidl-conversions-4.0.2.tgz#a855980b1f0b6b359ba1d5d9fb39ae941faa63ad"
   integrity sha512-YQ+BmxuTgd6UXZW3+ICGfyqRyHXVlD5GtQr5+qjiNW7bF0cqrzX500HVXPBOvgXb5YnzDd+h0zqyv61KUD7+Sg==
 
-whatwg-encoding@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/whatwg-encoding/-/whatwg-encoding-1.0.1.tgz#3c6c451a198ee7aec55b1ec61d0920c67801a5f4"
-  integrity sha1-PGxFGhmO567FWx7GHQkgxngBpfQ=
-  dependencies:
-    iconv-lite "0.4.13"
-
-whatwg-encoding@^1.0.3:
-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/whatwg-encoding/-/whatwg-encoding-1.0.3.tgz#57c235bc8657e914d24e1a397d3c82daee0a6ba3"
-  integrity sha512-jLBwwKUhi8WtBfsMQlL4bUUcT8sMkAtQinscJAe/M4KHCkHuUJAF6vuB0tueNIw4c8ziO6AkRmgY+jL3a0iiPw==
-  dependencies:
-    iconv-lite "0.4.19"
-
-whatwg-encoding@^1.0.5:
+whatwg-encoding@^1.0.1, whatwg-encoding@^1.0.3, whatwg-encoding@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/whatwg-encoding/-/whatwg-encoding-1.0.5.tgz#5abacf777c32166a51d085d6b4f3e7d27113ddb0"
   integrity sha512-b5lim54JOPN9HtzvK9HFXvBma/rnfFeqsic0hSpjtDbVxR3dJKLc+KB4V6GgiGOvl7CY/KNh8rxSo9DKQrnUEw==
@@ -8469,17 +7735,12 @@ whatwg-fetch@>=0.10.0:
   resolved "https://registry.yarnpkg.com/whatwg-fetch/-/whatwg-fetch-3.0.0.tgz#fc804e458cc460009b1a2b966bc8817d2578aefb"
   integrity sha512-9GSJUgz1D4MfyKU7KRqwOjXCXTqWdFNvEr7eUBYchQiVc744mqK/MzXPNR2WsPkmkOa4ywfg8C2n8h+13Bey1Q==
 
-whatwg-mimetype@^2.0.0, whatwg-mimetype@^2.1.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/whatwg-mimetype/-/whatwg-mimetype-2.1.0.tgz#f0f21d76cbba72362eb609dbed2a30cd17fcc7d4"
-  integrity sha512-FKxhYLytBQiUKjkYteN71fAUA3g6KpNXoho1isLiLSB3N1G4F35Q5vUxWfKFhBwi5IWF27VE6WxhrnnC+m0Mew==
-
-whatwg-mimetype@^2.2.0:
-  version "2.2.0"
-  resolved "https://registry.yarnpkg.com/whatwg-mimetype/-/whatwg-mimetype-2.2.0.tgz#a3d58ef10b76009b042d03e25591ece89b88d171"
-  integrity sha512-5YSO1nMd5D1hY3WzAQV3PzZL83W3YeyR1yW9PcH26Weh1t+Vzh9B6XkDh7aXm83HBZ4nSMvkjvN2H2ySWIvBgw==
+whatwg-mimetype@^2.1.0, whatwg-mimetype@^2.2.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/whatwg-mimetype/-/whatwg-mimetype-2.3.0.tgz#3d4b1e0312d2079879f826aff18dbeeca5960fbf"
+  integrity sha512-M4yMwr6mAnQz76TbJm914+gPpB/nCwvZbJU28cUD6dR004SAxDLOOSUaB1JDRqLtaOV/vi0IC5lEAGFgrjGv/g==
 
-whatwg-url@^6.4.0, whatwg-url@^6.4.1:
+whatwg-url@^6.4.1:
   version "6.4.1"
   resolved "https://registry.yarnpkg.com/whatwg-url/-/whatwg-url-6.4.1.tgz#fdb94b440fd4ad836202c16e9737d511f012fd67"
   integrity sha512-FwygsxsXx27x6XXuExA/ox3Ktwcbf+OAvrKmLulotDAiO1Q6ixchPFaHYsis2zZBZSJTR0+dR+JVtf7MlbqZjw==
@@ -8507,7 +7768,7 @@ which-pm-runs@^1.0.0:
   resolved "https://registry.yarnpkg.com/which-pm-runs/-/which-pm-runs-1.0.0.tgz#670b3afbc552e0b55df6b7780ca74615f23ad1cb"
   integrity sha1-Zws6+8VS4LVd9rd4DKdGFfI60cs=
 
-which@^1.2.12, which@^1.2.9, which@^1.3.0:
+which@^1.2.9, which@^1.3.0:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/which/-/which-1.3.1.tgz#a45043d54f5805316da8d62f9f50918d3da70b0a"
   integrity sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==
@@ -8551,11 +7812,6 @@ word-wrap@1.1.0:
   resolved "https://registry.yarnpkg.com/word-wrap/-/word-wrap-1.1.0.tgz#356153d61d10610d600785c5d701288e0ae764a6"
   integrity sha1-NWFT1h0QYQ1gB4XF1wEojgrnZKY=
 
-word-wrap@^1.0.3:
-  version "1.2.3"
-  resolved "https://registry.yarnpkg.com/word-wrap/-/word-wrap-1.2.3.tgz#610636f6b1f703891bd34771ccb17fb93b47079c"
-  integrity sha512-Hz/mrNwitNRh/HUAtM/VT/5VH+ygD6DV7mYKZAtHOrbs8U7lvPS6xf7EJKMF0uW1KJCl0H701g3ZGus+muE5vQ==
-
 wordwrap@~0.0.2:
   version "0.0.3"
   resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-0.0.3.tgz#a3d5da6cd5c0bc0008d37234bbaf1bed63059107"
@@ -8587,19 +7843,10 @@ write-file-atomic@2.4.1:
     imurmurhash "^0.1.4"
     signal-exit "^3.0.2"
 
-write-file-atomic@^2.0.0:
-  version "2.3.0"
-  resolved "https://registry.yarnpkg.com/write-file-atomic/-/write-file-atomic-2.3.0.tgz#1ff61575c2e2a4e8e510d6fa4e243cce183999ab"
-  integrity sha512-xuPeK4OdjWqtfi59ylvVL0Yn35SF3zgcAcv7rBPFHVaEapaDr4GdGgm3j7ckTwH9wHL7fGmgfAnb0+THrHb8tA==
-  dependencies:
-    graceful-fs "^4.1.11"
-    imurmurhash "^0.1.4"
-    signal-exit "^3.0.2"
-
-write-file-atomic@^2.4.2:
-  version "2.4.2"
-  resolved "https://registry.yarnpkg.com/write-file-atomic/-/write-file-atomic-2.4.2.tgz#a7181706dfba17855d221140a9c06e15fcdd87b9"
-  integrity sha512-s0b6vB3xIVRLWywa6X9TOMA7k9zio0TMOsl9ZnDkliA/cfJlpHXAscj0gbHVJiTdIuAYpIyqS5GW91fqm6gG5g==
+write-file-atomic@^2.0.0, write-file-atomic@^2.4.2:
+  version "2.4.3"
+  resolved "https://registry.yarnpkg.com/write-file-atomic/-/write-file-atomic-2.4.3.tgz#1fd2e9ae1df3e75b8d8c367443c692d4ca81f481"
+  integrity sha512-GaETH5wwsX+GcnzhPgKcKjJ6M2Cq3/iZp1WyY/X1CSqrW+jVNM9Y7D8EC2sM4ZG/V8wZlSniJnCKWPmBYAucRQ==
   dependencies:
     graceful-fs "^4.1.11"
     imurmurhash "^0.1.4"
@@ -8663,7 +7910,7 @@ xmldom@0.1.19:
   resolved "https://registry.yarnpkg.com/xmldom/-/xmldom-0.1.19.tgz#631fc07776efd84118bf25171b37ed4d075a0abc"
   integrity sha1-Yx/Ad3bv2EEYvyUXGzftTQdaCrw=
 
-xtend@^4.0.0, xtend@^4.0.1, xtend@~4.0.0, xtend@~4.0.1:
+xtend@^4.0.0, xtend@^4.0.1, xtend@~4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.1.tgz#a5c6d532be656e23db820efb943a1f04998d63af"
   integrity sha1-pcbVMr5lbiPbgg77lDofBJmNY68=

From b13189c7cc41aa015e9a50b9ec126e438a763179 Mon Sep 17 00:00:00 2001
From: Brendan Kenny <bckenny@gmail.com>
Date: Thu, 20 Jun 2019 22:04:29 -0700
Subject: [PATCH 053/110] core(gather-runner): add PageLoadError base artifact
 (#9236)

---
 .../test/smokehouse/error-config.js           |  2 -
 .../test/smokehouse/error-expectations.js     | 32 +++++++--
 lighthouse-core/gather/gather-runner.js       | 36 +++-------
 lighthouse-core/runner.js                     | 10 ++-
 .../test/gather/gather-runner-test.js         | 33 ++++++----
 lighthouse-core/test/runner-test.js           | 65 +++++++++++++++----
 types/artifacts.d.ts                          |  2 +
 7 files changed, 119 insertions(+), 61 deletions(-)

diff --git a/lighthouse-cli/test/smokehouse/error-config.js b/lighthouse-cli/test/smokehouse/error-config.js
index 6be23c61645d..771bdf60461e 100644
--- a/lighthouse-cli/test/smokehouse/error-config.js
+++ b/lighthouse-cli/test/smokehouse/error-config.js
@@ -14,8 +14,6 @@ module.exports = {
     maxWaitForLoad: 5000,
     onlyAudits: [
       'first-contentful-paint',
-      // TODO: this audit collects a non-base artifact, allowing the runtimeError to be collected.
-      'content-width',
     ],
   },
 };
diff --git a/lighthouse-cli/test/smokehouse/error-expectations.js b/lighthouse-cli/test/smokehouse/error-expectations.js
index 7f0f9bc80401..57c3e60cb073 100644
--- a/lighthouse-cli/test/smokehouse/error-expectations.js
+++ b/lighthouse-cli/test/smokehouse/error-expectations.js
@@ -13,24 +13,44 @@ module.exports = [
     lhr: {
       requestedUrl: 'http://localhost:10200/infinite-loop.html',
       finalUrl: 'http://localhost:10200/infinite-loop.html',
-      audits: {},
-      // TODO: runtimeError only exists because of selection of audits.
       runtimeError: {code: 'PAGE_HUNG'},
+      audits: {
+        'first-contentful-paint': {
+          scoreDisplayMode: 'error',
+          errorMessage: 'Required traces gatherer did not run.',
+        },
+      },
     },
     artifacts: {
-      ViewportDimensions: {code: 'PAGE_HUNG'},
+      PageLoadError: {code: 'PAGE_HUNG'},
+      devtoolsLogs: {
+        'pageLoadError-defaultPass': [/* ... */],
+      },
+      traces: {
+        'pageLoadError-defaultPass': {traceEvents: [/* ... */]},
+      },
     },
   },
   {
     lhr: {
       requestedUrl: 'https://expired.badssl.com',
       finalUrl: 'https://expired.badssl.com/',
-      audits: {},
-      // TODO: runtimeError only exists because of selection of audits.
       runtimeError: {code: 'INSECURE_DOCUMENT_REQUEST'},
+      audits: {
+        'first-contentful-paint': {
+          scoreDisplayMode: 'error',
+          errorMessage: 'Required traces gatherer did not run.',
+        },
+      },
     },
     artifacts: {
-      ViewportDimensions: {code: 'INSECURE_DOCUMENT_REQUEST'},
+      PageLoadError: {code: 'INSECURE_DOCUMENT_REQUEST'},
+      devtoolsLogs: {
+        'pageLoadError-defaultPass': [/* ... */],
+      },
+      traces: {
+        'pageLoadError-defaultPass': {traceEvents: [/* ... */]},
+      },
     },
   },
 ];
diff --git a/lighthouse-core/gather/gather-runner.js b/lighthouse-core/gather/gather-runner.js
index 36216a0740b9..3e98ca23bb1d 100644
--- a/lighthouse-core/gather/gather-runner.js
+++ b/lighthouse-core/gather/gather-runner.js
@@ -408,28 +408,6 @@ class GatherRunner {
     log.timeEnd(apStatus);
   }
 
-  /**
-   * Generate a set of artfiacts for the given pass as if all the gatherers
-   * failed with the given pageLoadError.
-   * @param {LH.Gatherer.PassContext} passContext
-   * @param {LHError} pageLoadError
-   * @return {{pageLoadError: LHError, artifacts: Partial<LH.GathererArtifacts>}}
-   */
-  static generatePageLoadErrorArtifacts(passContext, pageLoadError) {
-    /** @type {Partial<Record<keyof LH.GathererArtifacts, LHError>>} */
-    const errorArtifacts = {};
-    for (const gathererDefn of passContext.passConfig.gatherers) {
-      const gatherer = gathererDefn.instance;
-      errorArtifacts[gatherer.name] = pageLoadError;
-    }
-
-    return {
-      pageLoadError,
-      // @ts-ignore - TODO(bckenny): figure out how to usefully type errored artifacts.
-      artifacts: errorArtifacts,
-    };
-  }
-
   /**
    * Takes the results of each gatherer phase for each gatherer and uses the
    * last produced value (that's not undefined) as the artifact for that
@@ -495,6 +473,7 @@ class GatherRunner {
       settings: options.settings,
       URL: {requestedUrl: options.requestedUrl, finalUrl: options.requestedUrl},
       Timing: [],
+      PageLoadError: null,
     };
   }
 
@@ -594,7 +573,10 @@ class GatherRunner {
         Object.assign(artifacts, passResults.artifacts);
 
         // If we encountered a pageLoadError, don't try to keep loading the page in future passes.
-        if (passResults.pageLoadError) break;
+        if (passResults.pageLoadError) {
+          baseArtifacts.PageLoadError = passResults.pageLoadError;
+          break;
+        }
 
         if (isFirstPass) {
           await GatherRunner.populateBaseArtifacts(passContext);
@@ -606,8 +588,9 @@ class GatherRunner {
       GatherRunner.finalizeBaseArtifacts(baseArtifacts);
       return /** @type {LH.Artifacts} */ ({...baseArtifacts, ...artifacts}); // Cast to drop Partial<>.
     } catch (err) {
-      // cleanup on error
+      // Clean up on error. Don't await so that the root error, not a disposal error, is shown.
       GatherRunner.disposeDriver(driver, options);
+
       throw err;
     }
   }
@@ -660,14 +643,15 @@ class GatherRunner {
     // Disable throttling so the afterPass analysis isn't throttled
     await driver.setThrottling(passContext.settings, {useThrottling: false});
 
-    // If there were any load errors, treat all gatherers as if they errored.
+    // In case of load error, save log and trace with an error prefix, return no artifacts for this pass.
     const pageLoadError = GatherRunner.getPageLoadError(passContext, loadData, possibleNavError);
     if (pageLoadError) {
       log.error('GatherRunner', pageLoadError.friendlyMessage, passContext.url);
       passContext.LighthouseRunWarnings.push(pageLoadError.friendlyMessage);
       GatherRunner._addLoadDataToBaseArtifacts(passContext, loadData,
           `pageLoadError-${passConfig.passName}`);
-      return GatherRunner.generatePageLoadErrorArtifacts(passContext, pageLoadError);
+
+      return {artifacts: {}, pageLoadError};
     }
 
     // If no error, save devtoolsLog and trace.
diff --git a/lighthouse-core/runner.js b/lighthouse-core/runner.js
index 153b26075f12..c96a9e6a55a9 100644
--- a/lighthouse-core/runner.js
+++ b/lighthouse-core/runner.js
@@ -352,12 +352,18 @@ class Runner {
   }
 
   /**
-   * Returns first runtimeError found in artifacts.
+   * Searches a pass's artifacts for any `lhrRuntimeError` error artifacts.
+   * Returns the first one found or `null` if none found.
    * @param {LH.Artifacts} artifacts
    * @return {LH.Result['runtimeError']|undefined}
    */
   static getArtifactRuntimeError(artifacts) {
-    for (const possibleErrorArtifact of Object.values(artifacts)) {
+    const possibleErrorArtifacts = [
+      artifacts.PageLoadError, // Preferentially use `PageLoadError`, if it exists.
+      ...Object.values(artifacts), // Otherwise check amongst all artifacts.
+    ];
+
+    for (const possibleErrorArtifact of possibleErrorArtifacts) {
       if (possibleErrorArtifact instanceof LHError && possibleErrorArtifact.lhrRuntimeError) {
         const errorMessage = possibleErrorArtifact.friendlyMessage || possibleErrorArtifact.message;
 
diff --git a/lighthouse-core/test/gather/gather-runner-test.js b/lighthouse-core/test/gather/gather-runner-test.js
index 533e77646dfd..1161af861cdd 100644
--- a/lighthouse-core/test/gather/gather-runner-test.js
+++ b/lighthouse-core/test/gather/gather-runner-test.js
@@ -424,9 +424,10 @@ describe('GatherRunner', function() {
     assert.equal(tests.calledCleanBrowserCaches, true);
   });
 
-  it('fails artifacts with network errors', async () => {
+  it('returns a pageLoadError and no artifacts with network errors', async () => {
     const requestedUrl = 'https://example.com';
-    // This page load error should be overriden by NO_DOCUMENT_REQUEST for being more specific
+    // This page load error should be overriden by NO_DOCUMENT_REQUEST (for being
+    // more specific) since requestedUrl does not match any network request in fixture.
     const navigationError = new LHError(LHError.errors.NO_FCP);
     const driver = Object.assign({}, fakeDriver, {
       online: true,
@@ -450,13 +451,14 @@ describe('GatherRunner', function() {
       baseArtifacts: await GatherRunner.initializeBaseArtifacts({driver, settings, requestedUrl}),
     };
 
-    const {artifacts} = await GatherRunner.runPass(passContext);
+    const {artifacts, pageLoadError} = await GatherRunner.runPass(passContext);
     expect(passContext.LighthouseRunWarnings).toHaveLength(1);
-    expect(artifacts.TestGatherer).toBeInstanceOf(Error);
-    expect(artifacts.TestGatherer.code).toEqual('NO_DOCUMENT_REQUEST');
+    expect(pageLoadError).toBeInstanceOf(Error);
+    expect(pageLoadError.code).toEqual('NO_DOCUMENT_REQUEST');
+    expect(artifacts).toEqual({});
   });
 
-  it('fails artifacts with navigation errors', async () => {
+  it('returns a pageLoadError and no artifacts with navigation errors', async () => {
     const requestedUrl = 'https://example.com';
     // This time, NO_FCP should win because it's the only error left.
     const navigationError = new LHError(LHError.errors.NO_FCP);
@@ -485,10 +487,11 @@ describe('GatherRunner', function() {
       baseArtifacts: await GatherRunner.initializeBaseArtifacts({driver, settings, requestedUrl}),
     };
 
-    const {artifacts} = await GatherRunner.runPass(passContext);
+    const {artifacts, pageLoadError} = await GatherRunner.runPass(passContext);
     expect(passContext.LighthouseRunWarnings).toHaveLength(1);
-    expect(artifacts.TestGatherer).toBeInstanceOf(Error);
-    expect(artifacts.TestGatherer.code).toEqual('NO_FCP');
+    expect(pageLoadError).toBeInstanceOf(Error);
+    expect(pageLoadError.code).toEqual('NO_FCP');
+    expect(artifacts).toEqual({});
   });
 
   it('does not clear origin storage with flag --disable-storage-reset', () => {
@@ -806,7 +809,8 @@ describe('GatherRunner', function() {
     const options = {driver, requestedUrl, settings: config.settings};
     const artifacts = await GatherRunner.run(config.passes, options);
 
-    expect(artifacts.TestGatherer.code).toEqual('NO_DOCUMENT_REQUEST');
+    expect(artifacts.PageLoadError.code).toEqual('NO_DOCUMENT_REQUEST');
+    expect(artifacts.TestGatherer).toBeUndefined();
 
     // The only loadData available should be prefixed with `pageLoadError-`.
     expect(Object.keys(artifacts.traces)).toEqual(['pageLoadError-firstPass']);
@@ -856,12 +860,15 @@ describe('GatherRunner', function() {
     expect(t2.called).toBe(true);
     expect(t3.called).toBe(false);
 
-    // But only t1 has a valid artifact, t2 has an error artifact, and t3 never ran.
+    // But only t1 has a valid artifact; t2 and t3 aren't defined.
     expect(artifacts.Test1).toBe('MyArtifact');
-    expect(artifacts.Test2).toBeInstanceOf(LHError);
-    expect(artifacts.Test2.code).toEqual('NO_FCP');
+    expect(artifacts.Test2).toBeUndefined();
     expect(artifacts.Test3).toBeUndefined();
 
+    // PageLoadError artifact has the error.
+    expect(artifacts.PageLoadError).toBeInstanceOf(LHError);
+    expect(artifacts.PageLoadError.code).toEqual('NO_FCP');
+
     // firstPass has a saved trace and devtoolsLog, secondPass has an error trace and log.
     expect(Object.keys(artifacts.traces)).toEqual(['firstPass', 'pageLoadError-secondPass']);
     expect(Object.keys(artifacts.devtoolsLogs)).toEqual(['firstPass', 'pageLoadError-secondPass']);
diff --git a/lighthouse-core/test/runner-test.js b/lighthouse-core/test/runner-test.js
index 5f894a4e87a0..e94e8e6ee2cf 100644
--- a/lighthouse-core/test/runner-test.js
+++ b/lighthouse-core/test/runner-test.js
@@ -631,13 +631,18 @@ describe('Runner', () => {
     });
   });
 
-  it('includes a top-level runtimeError when a gatherer throws one', async () => {
+  describe('lhr.runtimeError', () => {
     const NO_FCP = LHError.errors.NO_FCP;
     class RuntimeErrorGatherer extends Gatherer {
       afterPass() {
         throw new LHError(NO_FCP);
       }
     }
+    class RuntimeError2Gatherer extends Gatherer {
+      afterPass() {
+        throw new LHError(LHError.errors.NO_SCREENSHOTS);
+      }
+    }
     class WarningAudit extends Audit {
       static get meta() {
         return {
@@ -652,19 +657,55 @@ describe('Runner', () => {
       }
     }
 
-    const config = new Config({
-      passes: [{gatherers: [RuntimeErrorGatherer]}],
+    const configJson = {
+      passes: [
+        {gatherers: [RuntimeErrorGatherer]},
+        {gatherers: [RuntimeError2Gatherer], passName: 'second'},
+      ],
       audits: [WarningAudit],
-    });
-    const {lhr} = await Runner.run(null, {url: 'https://example.com/', config, driverMock});
+    };
 
-    // Audit error included the runtimeError
-    assert.strictEqual(lhr.audits['test-audit'].scoreDisplayMode, 'error');
-    assert.ok(lhr.audits['test-audit'].errorMessage.includes(NO_FCP.code));
-    // And it bubbled up to the runtimeError.
-    assert.strictEqual(lhr.runtimeError.code, NO_FCP.code);
-    expect(lhr.runtimeError.message)
-      .toBeDisplayString(/Something .*\(NO_FCP\)/);
+    it('includes a top-level runtimeError when a gatherer throws one', async () => {
+      const config = new Config(configJson);
+      const {lhr} = await Runner.run(null, {url: 'https://example.com/', config, driverMock});
+
+      // Audit error included the runtimeError
+      expect(lhr.audits['test-audit'].scoreDisplayMode).toEqual('error');
+      expect(lhr.audits['test-audit'].errorMessage).toEqual(expect.stringContaining(NO_FCP.code));
+
+      // And it bubbled up to the runtimeError.
+      expect(lhr.runtimeError.code).toEqual(NO_FCP.code);
+      expect(lhr.runtimeError.message).toBeDisplayString(/Something .*\(NO_FCP\)/);
+    });
+
+    it('includes a pageLoadError runtimeError over any gatherer runtimeErrors', async () => {
+      const url = 'https://www.reddit.com/r/nba';
+      let firstLoad = true;
+      const errorDriverMock = Object.assign({}, driverMock, {
+        online: true,
+        // Loads the page successfully in the first pass, fails with PAGE_HUNG in the second.
+        async gotoURL(url) {
+          if (url.includes('blank')) return null;
+          if (firstLoad) {
+            firstLoad = false;
+            return url;
+          } else {
+            throw new LHError(LHError.errors.PAGE_HUNG);
+          }
+        },
+      });
+
+      const config = new Config(configJson);
+      const {lhr} = await Runner.run(null, {url, config, driverMock: errorDriverMock});
+
+      // Audit error still includes the gatherer runtimeError.
+      expect(lhr.audits['test-audit'].scoreDisplayMode).toEqual('error');
+      expect(lhr.audits['test-audit'].errorMessage).toEqual(expect.stringContaining(NO_FCP.code));
+
+      // But top-level runtimeError is the pageLoadError.
+      expect(lhr.runtimeError.code).toEqual(LHError.errors.PAGE_HUNG.code);
+      expect(lhr.runtimeError.message).toBeDisplayString(/because the page stopped responding/);
+    });
   });
 
   it('localized errors thrown from driver', async () => {
diff --git a/types/artifacts.d.ts b/types/artifacts.d.ts
index 3129406a9b90..a3d4cb8c36c9 100644
--- a/types/artifacts.d.ts
+++ b/types/artifacts.d.ts
@@ -49,6 +49,8 @@ declare global {
       URL: {requestedUrl: string, finalUrl: string};
       /** The timing instrumentation of the gather portion of a run. */
       Timing: Artifacts.MeasureEntry[];
+      /** If loading the page failed, value is the error that caused it. Otherwise null. */
+      PageLoadError: LighthouseError | null;
     }
 
     /**

From f13e549fab8032254f59e9d622619dcf4f49b011 Mon Sep 17 00:00:00 2001
From: Connor Clark <cjamcl@google.com>
Date: Mon, 24 Jun 2019 17:47:37 -0700
Subject: [PATCH 054/110] clients(devtools): unset overflow in print (#9274)

---
 lighthouse-core/report/html/report-styles.css | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lighthouse-core/report/html/report-styles.css b/lighthouse-core/report/html/report-styles.css
index 8f0f3208dcd0..250598acb329 100644
--- a/lighthouse-core/report/html/report-styles.css
+++ b/lighthouse-core/report/html/report-styles.css
@@ -263,6 +263,11 @@
   overflow-y: scroll;
   height: calc(100% - var(--topbar-height));
 }
+@media print {
+  .lh-devtools .lh-container {
+    overflow: unset;
+  }
+}
 .lh-devtools .lh-sticky-header {
   /* This is normally the height of the topbar, but we want it to stick to the top of our scroll container .lh-container` */
   top: 0;

From d3d382807bf347faf96a092c50d4580581fca370 Mon Sep 17 00:00:00 2001
From: Paul Irish <paul.irish@gmail.com>
Date: Mon, 24 Jun 2019 18:18:18 -0700
Subject: [PATCH 055/110] i18n: introduce script to swap in new locale to LHR
 (#8755)

---
 lighthouse-core/lib/i18n/i18n.js              | 26 +++++-
 lighthouse-core/lib/i18n/swap-locale.js       | 92 +++++++++++++++++++
 .../test/lib/i18n/swap-locale-test.js         | 76 +++++++++++++++
 package.json                                  |  2 +
 types/lhr.d.ts                                |  3 +-
 yarn.lock                                     | 12 +++
 6 files changed, 206 insertions(+), 5 deletions(-)
 create mode 100644 lighthouse-core/lib/i18n/swap-locale.js
 create mode 100644 lighthouse-core/test/lib/i18n/swap-locale-test.js

diff --git a/lighthouse-core/lib/i18n/i18n.js b/lighthouse-core/lib/i18n/i18n.js
index 03df5dd23ca2..3433bf79b2c7 100644
--- a/lighthouse-core/lib/i18n/i18n.js
+++ b/lighthouse-core/lib/i18n/i18n.js
@@ -170,24 +170,26 @@ function _preprocessMessageValues(icuMessage, values) {
 /** @type {Map<string, IcuMessageInstance[]>} */
 const _icuMessageInstanceMap = new Map();
 
+const _ICUMsgNotFoundMsg = 'ICU message not found in destination locale';
 /**
  *
  * @param {LH.Locale} locale
  * @param {string} icuMessageId
- * @param {string} icuMessage
+ * @param {string=} fallbackMessage
  * @param {*} [values]
  * @return {{formattedString: string, icuMessage: string}}
  */
-function _formatIcuMessage(locale, icuMessageId, icuMessage, values) {
+function _formatIcuMessage(locale, icuMessageId, fallbackMessage, values) {
   const localeMessages = LOCALES[locale];
   const localeMessage = localeMessages[icuMessageId] && localeMessages[icuMessageId].message;
   // fallback to the original english message if we couldn't find a message in the specified locale
   // better to have an english message than no message at all, in some number cases it won't even matter
-  const messageForMessageFormat = localeMessage || icuMessage;
+  const messageForMessageFormat = localeMessage || fallbackMessage;
+  if (messageForMessageFormat === undefined) throw new Error(_ICUMsgNotFoundMsg);
   // when using accented english, force the use of a different locale for number formatting
   const localeForMessageFormat = locale === 'en-XA' ? 'de-DE' : locale;
   // pre-process values for the message format like KB and milliseconds
-  const valuesForMessageFormat = _preprocessMessageValues(icuMessage, values);
+  const valuesForMessageFormat = _preprocessMessageValues(messageForMessageFormat, values);
 
   const formatter = new MessageFormat(messageForMessageFormat, localeForMessageFormat, formats);
   const formattedString = formatter.format(valuesForMessageFormat);
@@ -283,6 +285,20 @@ function getFormatted(icuMessageIdOrRawString, locale) {
   return icuMessageIdOrRawString;
 }
 
+/**
+ * @param {LH.Locale} locale
+ * @param {string} icuMessageId
+ * @param {*} [values]
+ * @return {string}
+ */
+function getFormattedFromIdAndValues(locale, icuMessageId, values) {
+  const icuMessageIdRegex = /(.* \| .*)$/;
+  if (!icuMessageIdRegex.test(icuMessageId)) throw new Error('This is not an ICU message ID');
+
+  const {formattedString} = _formatIcuMessage(locale, icuMessageId, undefined, values);
+  return formattedString;
+}
+
 /**
  * @param {string} icuMessageInstanceId
  * @param {LH.Locale} locale
@@ -350,11 +366,13 @@ function replaceIcuMessageInstanceIds(inputObject, locale) {
 
 module.exports = {
   _formatPathAsString,
+  _ICUMsgNotFoundMsg,
   UIStrings,
   lookupLocale,
   getRendererFormattedStrings,
   createMessageInstanceIdFn,
   getFormatted,
+  getFormattedFromIdAndValues,
   replaceIcuMessageInstanceIds,
   isIcuMessage,
 };
diff --git a/lighthouse-core/lib/i18n/swap-locale.js b/lighthouse-core/lib/i18n/swap-locale.js
new file mode 100644
index 000000000000..0624f6fca339
--- /dev/null
+++ b/lighthouse-core/lib/i18n/swap-locale.js
@@ -0,0 +1,92 @@
+/**
+ * @license Copyright 2019 Google Inc. All Rights Reserved.
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
+ */
+'use strict';
+
+const _set = require('lodash.set');
+
+const i18n = require('./i18n.js');
+
+/**
+ * @fileoverview Use the lhr.i18n.icuMessagePaths object to change locales
+ *
+ * `icuMessagePaths` is an object keyed by `icuMessageId`s. Within each is either
+ * 1) an array of strings, which are just object paths to where that message is used in the LHR
+ * 2) an array of `LH.I18NMessageValuesEntry`s which include both a `path` and a `values` object
+ *    which will be used in the replacement within `i18n._formatIcuMessage()`
+ *
+ * An example:
+    "icuMessagePaths": {
+    "lighthouse-core/audits/metrics/first-contentful-paint.js | title": [
+      "audits[first-contentful-paint].title"
+    ],
+    "lighthouse-core/audits/time-to-first-byte.js | displayValue": [
+      {
+        "values": {
+          "timeInMs": 570.5630000000001
+        },
+        "path": "audits[time-to-first-byte].displayValue"
+      }
+    ],
+    "lighthouse-core/lib/i18n/i18n.js | columnTimeSpent": [
+      "audits[mainthread-work-breakdown].details.headings[1].text",
+      "audits[network-rtt].details.headings[1].text",
+      "audits[network-server-latency].details.headings[1].text"
+    ],
+    ...
+ */
+
+/**
+ * Returns a new LHR with all strings changed to the new `requestedLocale`.
+ * @param {LH.Result} lhr
+ * @param {LH.Locale} requestedLocale
+ * @return {{lhr: LH.Result, missingIcuMessageIds: string[]}}
+ */
+function swapLocale(lhr, requestedLocale) {
+  // Copy LHR to avoid mutating provided LHR.
+  lhr = JSON.parse(JSON.stringify(lhr));
+
+  const locale = i18n.lookupLocale(requestedLocale);
+  const {icuMessagePaths} = lhr.i18n;
+  const missingIcuMessageIds = /** @type {string[]} */([]);
+
+  Object.entries(icuMessagePaths).forEach(([icuMessageId, messageInstancesInLHR]) => {
+    for (const instance of messageInstancesInLHR) {
+      // The path that _formatPathAsString() generated
+      let path;
+      let values;
+      if (typeof instance === 'string') {
+        path = instance;
+      } else {
+        path = instance.path;
+        // `values` are the string template values to be used. eg. `values: {wastedBytes: 9028}`
+        values = instance.values;
+      }
+      // If we couldn't find the new replacement message, keep things as is.
+      try {
+        // Get new formatted strings in revised locale
+        const formattedStr = i18n.getFormattedFromIdAndValues(locale, icuMessageId, values);
+        // Write string back into the LHR
+        _set(lhr, path, formattedStr);
+      } catch (err) {
+        if (err.message === i18n._ICUMsgNotFoundMsg) {
+          missingIcuMessageIds.push(icuMessageId);
+        } else {
+          throw err;
+        }
+      }
+    }
+  });
+
+  lhr.i18n.rendererFormattedStrings = i18n.getRendererFormattedStrings(locale);
+  // Tweak the config locale
+  lhr.configSettings.locale = locale;
+  return {
+    lhr,
+    missingIcuMessageIds,
+  };
+}
+
+module.exports = swapLocale;
diff --git a/lighthouse-core/test/lib/i18n/swap-locale-test.js b/lighthouse-core/test/lib/i18n/swap-locale-test.js
new file mode 100644
index 000000000000..9a73a7e8198a
--- /dev/null
+++ b/lighthouse-core/test/lib/i18n/swap-locale-test.js
@@ -0,0 +1,76 @@
+/**
+ * @license Copyright 2019 Google Inc. All Rights Reserved.
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
+ */
+'use strict';
+
+const swapLocale = require('../../../lib/i18n/swap-locale.js');
+
+const lhr = require('../../results/sample_v2.json');
+
+/* eslint-env jest */
+describe('swap-locale', () => {
+  it('can change golden LHR english strings into spanish', () => {
+    const lhrEn = /** @type {LH.Result} */ (JSON.parse(JSON.stringify(lhr)));
+    const lhrEs = swapLocale(lhrEn, 'es').lhr;
+
+    // Basic replacement
+    expect(lhrEn.audits.plugins.title).toEqual('Document avoids plugins');
+    expect(lhrEs.audits.plugins.title).toEqual('El documento no usa complementos');
+
+    // With ICU string argument values
+    expect(lhrEn.audits['dom-size'].displayValue).toEqual('31 elements');
+    expect(lhrEs.audits['dom-size'].displayValue).toEqual('31 elementos');
+
+    // Renderer formatted strings
+    expect(lhrEn.i18n.rendererFormattedStrings.labDataTitle).toEqual('Lab Data');
+    expect(lhrEs.i18n.rendererFormattedStrings.labDataTitle).toEqual('Datos de prueba');
+  });
+
+  it('can roundtrip back to english correctly', () => {
+    const lhrEn = /** @type {LH.Result} */ (JSON.parse(JSON.stringify(lhr)));
+
+    // via Spanish
+    const lhrEnEsRT = swapLocale(swapLocale(lhrEn, 'es').lhr, 'en-US').lhr;
+    expect(lhrEnEsRT).toEqual(lhrEn);
+
+    // via Arabic
+    const lhrEnArRT = swapLocale(swapLocale(lhrEn, 'ar').lhr, 'en-US').lhr;
+    expect(lhrEnArRT).toEqual(lhrEn);
+  });
+
+  it('leaves alone messages where there is no translation available', () => {
+    const miniLHR = {
+      audits: {
+        redirects: {
+          id: 'redirects',
+          title: 'Avoid multiple page redirects',
+        },
+        fakeaudit: {
+          id: 'fakeaudit',
+          title: 'An audit without translations',
+        },
+      },
+      configSettings: {
+        locale: 'en-US',
+      },
+      i18n: {
+        icuMessagePaths: {
+          'lighthouse-core/audits/redirects.js | title': ['audits.redirects.title'],
+          'lighthouse-core/audits/redirects.js | doesntExist': ['audits.redirects.doesntExist'],
+          'lighthouse-core/audits/fakeaudit.js | title': ['audits.fakeaudit.title'],
+        },
+      },
+    };
+    const {missingIcuMessageIds} = swapLocale(miniLHR, 'es');
+
+    // Updated strings are not found, so these remain in the original language
+    expect(missingIcuMessageIds).toMatchInlineSnapshot(`
+Array [
+  "lighthouse-core/audits/redirects.js | doesntExist",
+  "lighthouse-core/audits/fakeaudit.js | title",
+]
+`);
+  });
+});
diff --git a/package.json b/package.json
index 8598a456b899..b16ac4f42b4f 100644
--- a/package.json
+++ b/package.json
@@ -82,6 +82,7 @@
     "@types/jest": "^24.0.9",
     "@types/jpeg-js": "^0.3.0",
     "@types/lodash.isequal": "^4.5.2",
+    "@types/lodash.set": "^4.3.6",
     "@types/make-dir": "^1.0.3",
     "@types/mkdirp": "^0.5.2",
     "@types/node": "*",
@@ -121,6 +122,7 @@
     "isomorphic-fetch": "^2.2.1",
     "jest": "^24.3.0",
     "jsdom": "^12.2.0",
+    "lodash.set": "^4.3.2",
     "make-dir": "^1.3.0",
     "npm-run-posix-or-windows": "^2.0.2",
     "nyc": "^13.3.0",
diff --git a/types/lhr.d.ts b/types/lhr.d.ts
index 3bee01cf1057..567a0ed23a9e 100644
--- a/types/lhr.d.ts
+++ b/types/lhr.d.ts
@@ -10,7 +10,8 @@ declare global {
   module LH {
     export type LighthouseError = LHError;
 
-    export type I18NMessageEntry = string | {path: string, values: any};
+    export type I18NMessageValuesEntry = {path: string, values:  Record<string, string | number>};
+    export type I18NMessageEntry = string | I18NMessageValuesEntry;
 
     export interface I18NMessages {
       [icuMessageId: string]: I18NMessageEntry[];
diff --git a/yarn.lock b/yarn.lock
index 0513c49eeb75..4c56add77134 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -541,6 +541,13 @@
   dependencies:
     "@types/lodash" "*"
 
+"@types/lodash.set@^4.3.6":
+  version "4.3.6"
+  resolved "https://registry.yarnpkg.com/@types/lodash.set/-/lodash.set-4.3.6.tgz#33e635c2323f855359225df6a5c8c6f1f1908264"
+  integrity sha512-ZeGDDlnRYTvS31Laij0RsSaguIUSBTYIlJFKL3vm3T2OAZAQj2YpSvVWJc0WiG4jqg9fGX6PAPGvDqBcHfSgFg==
+  dependencies:
+    "@types/lodash" "*"
+
 "@types/lodash@*":
   version "4.14.106"
   resolved "https://registry.yarnpkg.com/@types/lodash/-/lodash-4.14.106.tgz#6093e9a02aa567ddecfe9afadca89e53e5dce4dd"
@@ -5071,6 +5078,11 @@ lodash.memoize@~3.0.3:
   resolved "https://registry.yarnpkg.com/lodash.memoize/-/lodash.memoize-3.0.4.tgz#2dcbd2c287cbc0a55cc42328bd0c736150d53e3f"
   integrity sha1-LcvSwofLwKVcxCMovQxzYVDVPj8=
 
+lodash.set@^4.3.2:
+  version "4.3.2"
+  resolved "https://registry.yarnpkg.com/lodash.set/-/lodash.set-4.3.2.tgz#d8757b1da807dde24816b0d6a84bea1a76230b23"
+  integrity sha1-2HV7HagH3eJIFrDWqEvqGnYjCyM=
+
 lodash.sortby@^4.7.0:
   version "4.7.0"
   resolved "https://registry.yarnpkg.com/lodash.sortby/-/lodash.sortby-4.7.0.tgz#edd14c824e2cc9c1e0b0a1b42bb5210516a42438"

From e780ef250e6f30fa9cebf543fafeae4fa675afb7 Mon Sep 17 00:00:00 2001
From: Patrick Hulce <patrick.hulce@gmail.com>
Date: Tue, 25 Jun 2019 12:00:32 -0500
Subject: [PATCH 056/110] new_audit: add third party entity summary (#9067)

---
 .../test/cli/__snapshots__/index-test.js.snap |   8 +
 lighthouse-core/audits/bootup-time.js         |  21 ++-
 lighthouse-core/audits/third-party-summary.js | 167 ++++++++++++++++++
 lighthouse-core/config/default-config.js      |   2 +
 lighthouse-core/lib/i18n/en-US.json           |  20 +++
 .../report/html/renderer/details-renderer.js  |  10 +-
 .../test/audits/third-party-summary-test.js   |  76 ++++++++
 .../html/renderer/details-renderer-test.js    |  20 +++
 .../performance-category-renderer-test.js     |   2 +-
 lighthouse-core/test/results/sample_v2.json   |  95 +++++++++-
 package.json                                  |   1 +
 proto/sample_v2_round_trip.json               |  56 ++++++
 types/audit-details.d.ts                      |   1 +
 yarn.lock                                     |   5 +
 14 files changed, 465 insertions(+), 19 deletions(-)
 create mode 100644 lighthouse-core/audits/third-party-summary.js
 create mode 100644 lighthouse-core/test/audits/third-party-summary-test.js

diff --git a/lighthouse-cli/test/cli/__snapshots__/index-test.js.snap b/lighthouse-cli/test/cli/__snapshots__/index-test.js.snap
index 3983c1067232..06c58615e47c 100644
--- a/lighthouse-cli/test/cli/__snapshots__/index-test.js.snap
+++ b/lighthouse-cli/test/cli/__snapshots__/index-test.js.snap
@@ -132,6 +132,9 @@ Object {
     Object {
       "path": "resource-summary",
     },
+    Object {
+      "path": "third-party-summary",
+    },
     Object {
       "path": "manual/pwa-cross-browser",
     },
@@ -837,6 +840,11 @@ Object {
           "id": "resource-summary",
           "weight": 0,
         },
+        Object {
+          "group": "diagnostics",
+          "id": "third-party-summary",
+          "weight": 0,
+        },
         Object {
           "id": "network-requests",
           "weight": 0,
diff --git a/lighthouse-core/audits/bootup-time.js b/lighthouse-core/audits/bootup-time.js
index 73a7880a2d59..7041469a60c8 100644
--- a/lighthouse-core/audits/bootup-time.js
+++ b/lighthouse-core/audits/bootup-time.js
@@ -77,6 +77,20 @@ class BootupTime extends Audit {
     return urls;
   }
 
+  /**
+   * @param {LH.Artifacts.TaskNode} task
+   * @param {Set<string>} jsURLs
+   * @return {string}
+   */
+  static getAttributableURLForTask(task, jsURLs) {
+    const jsURL = task.attributableURLs.find(url => jsURLs.has(url));
+    const fallbackURL = task.attributableURLs[0];
+    let attributableURL = jsURL || fallbackURL;
+    // If we can't find what URL was responsible for this execution, just attribute it to the root page.
+    if (!attributableURL || attributableURL === 'about:blank') attributableURL = 'Other';
+    return attributableURL;
+  }
+
   /**
    * @param {LH.Artifacts.TaskNode[]} tasks
    * @param {Set<string>} jsURLs
@@ -87,12 +101,7 @@ class BootupTime extends Audit {
     const result = new Map();
 
     for (const task of tasks) {
-      const jsURL = task.attributableURLs.find(url => jsURLs.has(url));
-      const fallbackURL = task.attributableURLs[0];
-      let attributableURL = jsURL || fallbackURL;
-      // If we can't find what URL was responsible for this execution, just attribute it to the root page.
-      if (!attributableURL || attributableURL === 'about:blank') attributableURL = 'Other';
-
+      const attributableURL = BootupTime.getAttributableURLForTask(task, jsURLs);
       const timingByGroupId = result.get(attributableURL) || {};
       const originalTime = timingByGroupId[task.group.id] || 0;
       timingByGroupId[task.group.id] = originalTime + task.selfTime;
diff --git a/lighthouse-core/audits/third-party-summary.js b/lighthouse-core/audits/third-party-summary.js
new file mode 100644
index 000000000000..e63ed31124b4
--- /dev/null
+++ b/lighthouse-core/audits/third-party-summary.js
@@ -0,0 +1,167 @@
+/**
+ * @license Copyright 2019 Google Inc. All Rights Reserved.
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
+ */
+'use strict';
+
+const thirdPartyWeb = require('third-party-web/httparchive-nostats-subset');
+
+const Audit = require('./audit.js');
+const BootupTime = require('./bootup-time.js');
+const i18n = require('../lib/i18n/i18n.js');
+const NetworkRecords = require('../computed/network-records.js');
+const MainThreadTasks = require('../computed/main-thread-tasks.js');
+
+const UIStrings = {
+  /** Title of a Lighthouse audit that identifies the code on the page that the user doesn't control. This is shown in a list of audits that Lighthouse generates. */
+  title: 'Third-Party Usage',
+  /** Description of a Lighthouse audit that identifies the code on the page that the user doesn't control. This is displayed after a user expands the section to see more. No character length limits. 'Learn More' becomes link text to additional documentation. */
+  description: 'Third-party code can significantly impact load performance. ' +
+    'Limit the number of redundant third-party providers and try to load third-party code after ' +
+    'your page has primarily finished loading. [Learn more](https://developers.google.com/web/fundamentals/performance/optimizing-content-efficiency/loading-third-party-javascript/).',
+  /** Label for a table column that displays the name of a third-party provider that potentially links to their website. */
+  columnThirdParty: 'Third-Party',
+  /** Label for a table column that displays how much time each row spent executing on the main thread, entries will be the number of milliseconds spent. */
+  columnMainThreadTime: 'Main Thread Time',
+  /** Summary text for the result of a Lighthouse audit that identifies the code on the page that the user doesn't control. This text summarizes the number of distinct entities that were found on the page. */
+  displayValue: `{itemCount, plural,
+    =1 {1 Third-Party Found}
+    other {# Third-Parties Found}
+  }`,
+};
+
+const str_ = i18n.createMessageInstanceIdFn(__filename, UIStrings);
+
+/** @typedef {import("third-party-web").IEntity} ThirdPartyEntity */
+
+class ThirdPartySummary extends Audit {
+  /**
+   * @return {LH.Audit.Meta}
+   */
+  static get meta() {
+    return {
+      id: 'third-party-summary',
+      title: str_(UIStrings.title),
+      description: str_(UIStrings.description),
+      scoreDisplayMode: Audit.SCORING_MODES.INFORMATIVE,
+      requiredArtifacts: ['traces', 'devtoolsLogs'],
+    };
+  }
+
+  /**
+   * `third-party-web` throws when the passed in string doesn't appear to have any domain whatsoever.
+   * We pass in some not-so-url-like things, so make the dependent-code simpler by making this call safe.
+   * @param {string} url
+   * @return {ThirdPartyEntity|undefined}
+   */
+  static getEntitySafe(url) {
+    try {
+      return thirdPartyWeb.getEntity(url);
+    } catch (_) {
+      return undefined;
+    }
+  }
+
+
+  /**
+   *
+   * @param {Array<LH.Artifacts.NetworkRequest>} networkRecords
+   * @param {Array<LH.Artifacts.TaskNode>} mainThreadTasks
+   * @param {number} cpuMultiplier
+   * @return {Map<ThirdPartyEntity, {mainThreadTime: number, transferSize: number}>}
+   */
+  static getSummaryByEntity(networkRecords, mainThreadTasks, cpuMultiplier) {
+    /** @type {Map<ThirdPartyEntity, {mainThreadTime: number, transferSize: number}>} */
+    const entities = new Map();
+
+    for (const request of networkRecords) {
+      const entity = ThirdPartySummary.getEntitySafe(request.url);
+      if (!entity) continue;
+
+      const entityStats = entities.get(entity) || {mainThreadTime: 0, transferSize: 0};
+      entityStats.transferSize += request.transferSize;
+      entities.set(entity, entityStats);
+    }
+
+    const jsURLs = BootupTime.getJavaScriptURLs(networkRecords);
+
+    for (const task of mainThreadTasks) {
+      const attributeableURL = BootupTime.getAttributableURLForTask(task, jsURLs);
+      const entity = ThirdPartySummary.getEntitySafe(attributeableURL);
+      if (!entity) continue;
+
+      const entityStats = entities.get(entity) || {mainThreadTime: 0, transferSize: 0};
+      entityStats.mainThreadTime += task.selfTime * cpuMultiplier;
+      entities.set(entity, entityStats);
+    }
+
+    return entities;
+  }
+
+  /**
+   * @param {LH.Artifacts} artifacts
+   * @param {LH.Audit.Context} context
+   * @return {Promise<LH.Audit.Product>}
+   */
+  static async audit(artifacts, context) {
+    const settings = context.settings || {};
+    const trace = artifacts.traces[Audit.DEFAULT_PASS];
+    const devtoolsLog = artifacts.devtoolsLogs[Audit.DEFAULT_PASS];
+    const networkRecords = await NetworkRecords.request(devtoolsLog, context);
+    const tasks = await MainThreadTasks.request(trace, context);
+    const multiplier = settings.throttlingMethod === 'simulate' ?
+      settings.throttling.cpuSlowdownMultiplier : 1;
+
+    const summaryByEntity = ThirdPartySummary.getSummaryByEntity(networkRecords, tasks, multiplier);
+
+    const summary = {wastedBytes: 0, wastedMs: 0};
+
+    // Sort by a combined measure of bytes + main thread time.
+    // 1KB ~= 1 ms
+    /** @param {{transferSize: number, mainThreadTime: number}} stats */
+    const computeSortValue = stats => stats.transferSize / 1024 + stats.mainThreadTime;
+
+    const results = Array.from(summaryByEntity.entries())
+      .map(([entity, stats]) => {
+        summary.wastedBytes += stats.transferSize;
+        summary.wastedMs += stats.mainThreadTime;
+
+        return {
+          entity: /** @type {LH.Audit.Details.LinkValue} */ ({
+            type: 'link',
+            text: entity.name,
+            url: entity.homepage || '',
+          }),
+          transferSize: stats.transferSize,
+          mainThreadTime: stats.mainThreadTime,
+        };
+      })
+      .sort((a, b) => computeSortValue(b) - computeSortValue(a));
+
+    /** @type {LH.Audit.Details.Table['headings']} */
+    const headings = [
+      {key: 'entity', itemType: 'link', text: str_(UIStrings.columnThirdParty)},
+      {key: 'transferSize', granularity: 1, itemType: 'bytes',
+        text: str_(i18n.UIStrings.columnSize)},
+      {key: 'mainThreadTime', granularity: 1, itemType: 'ms',
+        text: str_(UIStrings.columnMainThreadTime)},
+    ];
+
+    if (!results.length) {
+      return {
+        score: 1,
+        notApplicable: true,
+      };
+    }
+
+    return {
+      score: Number(results.length === 0),
+      displayValue: str_(UIStrings.displayValue, {itemCount: results.length}),
+      details: Audit.makeTableDetails(headings, results, summary),
+    };
+  }
+}
+
+module.exports = ThirdPartySummary;
+module.exports.UIStrings = UIStrings;
diff --git a/lighthouse-core/config/default-config.js b/lighthouse-core/config/default-config.js
index d10e91196537..d569564e8cda 100644
--- a/lighthouse-core/config/default-config.js
+++ b/lighthouse-core/config/default-config.js
@@ -199,6 +199,7 @@ const defaultConfig = {
     'offline-start-url',
     'performance-budget',
     'resource-summary',
+    'third-party-summary',
     'manual/pwa-cross-browser',
     'manual/pwa-page-transitions',
     'manual/pwa-each-page-has-url',
@@ -391,6 +392,7 @@ const defaultConfig = {
         {id: 'font-display', weight: 0, group: 'diagnostics'},
         {id: 'performance-budget', weight: 0, group: 'budgets'},
         {id: 'resource-summary', weight: 0, group: 'diagnostics'},
+        {id: 'third-party-summary', weight: 0, group: 'diagnostics'},
         // Audits past this point don't belong to a group and will not be shown automatically
         {id: 'network-requests', weight: 0},
         {id: 'network-rtt', weight: 0},
diff --git a/lighthouse-core/lib/i18n/en-US.json b/lighthouse-core/lib/i18n/en-US.json
index 91c6886af894..a3adf30df64a 100644
--- a/lighthouse-core/lib/i18n/en-US.json
+++ b/lighthouse-core/lib/i18n/en-US.json
@@ -1007,6 +1007,26 @@
     "message": "Tap targets are sized appropriately",
     "description": "Title of a Lighthouse audit that provides detail on whether tap targets (like buttons and links) on a page are big enough so they can easily be tapped on a mobile device. This descriptive title is shown when tap targets are easy to tap on."
   },
+  "lighthouse-core/audits/third-party-summary.js | columnMainThreadTime": {
+    "message": "Main Thread Time",
+    "description": "Label for a table column that displays how much time each row spent executing on the main thread, entries will be the number of milliseconds spent."
+  },
+  "lighthouse-core/audits/third-party-summary.js | columnThirdParty": {
+    "message": "Third-Party",
+    "description": "Label for a table column that displays the name of a third-party provider that potentially links to their website."
+  },
+  "lighthouse-core/audits/third-party-summary.js | description": {
+    "message": "Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading. [Learn more](https://developers.google.com/web/fundamentals/performance/optimizing-content-efficiency/loading-third-party-javascript/).",
+    "description": "Description of a Lighthouse audit that identifies the code on the page that the user doesn't control. This is displayed after a user expands the section to see more. No character length limits. 'Learn More' becomes link text to additional documentation."
+  },
+  "lighthouse-core/audits/third-party-summary.js | displayValue": {
+    "message": "{itemCount, plural,\n    =1 {1 Third-Party Found}\n    other {# Third-Parties Found}\n  }",
+    "description": "Summary text for the result of a Lighthouse audit that identifies the code on the page that the user doesn't control. This text summarizes the number of distinct entities that were found on the page."
+  },
+  "lighthouse-core/audits/third-party-summary.js | title": {
+    "message": "Third-Party Usage",
+    "description": "Title of a Lighthouse audit that identifies the code on the page that the user doesn't control. This is shown in a list of audits that Lighthouse generates."
+  },
   "lighthouse-core/audits/time-to-first-byte.js | description": {
     "message": "Time To First Byte identifies the time at which your server sends a response. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/ttfb).",
     "description": "Description of a Lighthouse audit that tells the user *why* they should reduce the amount of time it takes their server to start responding to requests. This is displayed after a user expands the section to see more. No character length limits. 'Learn More' becomes link text to additional documentation."
diff --git a/lighthouse-core/report/html/renderer/details-renderer.js b/lighthouse-core/report/html/renderer/details-renderer.js
index d7cb6abe0e34..4e26b2594ae2 100644
--- a/lighthouse-core/report/html/renderer/details-renderer.js
+++ b/lighthouse-core/report/html/renderer/details-renderer.js
@@ -135,9 +135,13 @@ class DetailsRenderer {
    */
   _renderLink(details) {
     const allowedProtocols = ['https:', 'http:'];
-    const url = new URL(details.url);
-    if (!allowedProtocols.includes(url.protocol)) {
-      // Fall back to just the link text if protocol not allowed.
+    let url;
+    try {
+      url = new URL(details.url);
+    } catch (_) {}
+
+    if (!url || !allowedProtocols.includes(url.protocol)) {
+      // Fall back to just the link text if invalid or protocol not allowed.
       return this._renderText(details.text);
     }
 
diff --git a/lighthouse-core/test/audits/third-party-summary-test.js b/lighthouse-core/test/audits/third-party-summary-test.js
new file mode 100644
index 000000000000..7bded94240bb
--- /dev/null
+++ b/lighthouse-core/test/audits/third-party-summary-test.js
@@ -0,0 +1,76 @@
+/**
+ * @license Copyright 2017 Google Inc. All Rights Reserved.
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
+ */
+'use strict';
+
+const ThirdPartySummary = require('../../audits/third-party-summary.js');
+const networkRecordsToDevtoolsLog = require('../network-records-to-devtools-log.js');
+
+const pwaTrace = require('../fixtures/traces/progressive-app-m60.json');
+const pwaDevtoolsLog = require('../fixtures/traces/progressive-app-m60.devtools.log.json');
+const noThirdPartyTrace = require('../fixtures/traces/no-tracingstarted-m74.json');
+
+/* eslint-env jest */
+describe('Third party summary', () => {
+  it('surface the discovered third parties', async () => {
+    const artifacts = {
+      devtoolsLogs: {defaultPass: pwaDevtoolsLog},
+      traces: {defaultPass: pwaTrace},
+    };
+
+    const results = await ThirdPartySummary.audit(artifacts, {computedCache: new Map()});
+
+    expect(results.displayValue).toBeDisplayString('2 Third-Parties Found');
+    expect(results.details.items).toEqual([
+      {
+        entity: {
+          text: 'Google Tag Manager',
+          type: 'link',
+          url: 'https://marketingplatform.google.com/about/tag-manager/',
+        },
+        mainThreadTime: 104.70300000000002,
+        transferSize: 30827,
+      },
+      {
+        entity: {
+          text: 'Google Analytics',
+          type: 'link',
+          url: 'https://www.google.com/analytics/analytics/',
+        },
+        mainThreadTime: 87.576,
+        transferSize: 20913,
+      },
+    ]);
+  });
+
+  it('account for simulated throttling', async () => {
+    const artifacts = {
+      devtoolsLogs: {defaultPass: pwaDevtoolsLog},
+      traces: {defaultPass: pwaTrace},
+    };
+
+    const settings = {throttlingMethod: 'simulate', throttling: {cpuSlowdownMultiplier: 4}};
+    const results = await ThirdPartySummary.audit(artifacts, {computedCache: new Map(), settings});
+
+    expect(results.details.items).toHaveLength(2);
+    expect(Math.round(results.details.items[0].mainThreadTime)).toEqual(419);
+    expect(Math.round(results.details.items[1].mainThreadTime)).toEqual(350);
+  });
+
+  it('be not applicable when no third parties are present', async () => {
+    const artifacts = {
+      devtoolsLogs: {defaultPass: networkRecordsToDevtoolsLog([{url: 'chrome://version'}])},
+      traces: {defaultPass: noThirdPartyTrace},
+    };
+
+    const settings = {throttlingMethod: 'simulate', throttling: {cpuSlowdownMultiplier: 4}};
+    const results = await ThirdPartySummary.audit(artifacts, {computedCache: new Map(), settings});
+
+    expect(results).toEqual({
+      score: 1,
+      notApplicable: true,
+    });
+  });
+});
diff --git a/lighthouse-core/test/report/html/renderer/details-renderer-test.js b/lighthouse-core/test/report/html/renderer/details-renderer-test.js
index fec4f3233664..261172a7356c 100644
--- a/lighthouse-core/test/report/html/renderer/details-renderer-test.js
+++ b/lighthouse-core/test/report/html/renderer/details-renderer-test.js
@@ -346,6 +346,26 @@ describe('DetailsRenderer', () => {
       assert.equal(linkEl.textContent, linkText);
     });
 
+    it('renders link value as text if URL is invalid', () => {
+      const linkText = 'Invalid Link';
+      const linkUrl = 'link nonsense';
+      const link = {
+        type: 'link',
+        text: linkText,
+        url: linkUrl,
+      };
+      const details = {
+        type: 'table',
+        headings: [{key: 'content', itemType: 'link', text: 'Heading'}],
+        items: [{content: link}],
+      };
+
+      const el = renderer.render(details);
+      const linkEl = el.querySelector('td.lh-table-column--link > .lh-text');
+      assert.equal(linkEl.localName, 'div');
+      assert.equal(linkEl.textContent, linkText);
+    });
+
     it('renders node values', () => {
       const node = {
         type: 'node',
diff --git a/lighthouse-core/test/report/html/renderer/performance-category-renderer-test.js b/lighthouse-core/test/report/html/renderer/performance-category-renderer-test.js
index 2d5e9dd41a4d..eec7b0744467 100644
--- a/lighthouse-core/test/report/html/renderer/performance-category-renderer-test.js
+++ b/lighthouse-core/test/report/html/renderer/performance-category-renderer-test.js
@@ -138,7 +138,7 @@ describe('PerfCategoryRenderer', () => {
 
   it('renders the failing diagnostics', () => {
     const categoryDOM = renderer.render(category, sampleResults.categoryGroups);
-    const diagnosticSection = categoryDOM.querySelectorAll('.lh-category > .lh-audit-group')[2];
+    const diagnosticSection = categoryDOM.querySelectorAll('.lh-category > .lh-audit-group')[3];
 
     const diagnosticAudits = category.auditRefs.filter(audit => audit.group === 'diagnostics' &&
         !Util.showAsPassed(audit.result));
diff --git a/lighthouse-core/test/results/sample_v2.json b/lighthouse-core/test/results/sample_v2.json
index d9a6deefbf12..3e22f468be45 100644
--- a/lighthouse-core/test/results/sample_v2.json
+++ b/lighthouse-core/test/results/sample_v2.json
@@ -1479,6 +1479,51 @@
         ]
       }
     },
+    "third-party-summary": {
+      "id": "third-party-summary",
+      "title": "Third-Party Usage",
+      "description": "Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading. [Learn more](https://developers.google.com/web/fundamentals/performance/optimizing-content-efficiency/loading-third-party-javascript/).",
+      "score": null,
+      "scoreDisplayMode": "informative",
+      "displayValue": "1 Third-Party Found",
+      "details": {
+        "type": "table",
+        "headings": [
+          {
+            "key": "entity",
+            "itemType": "link",
+            "text": "Third-Party"
+          },
+          {
+            "key": "transferSize",
+            "granularity": 1,
+            "itemType": "bytes",
+            "text": "Size"
+          },
+          {
+            "key": "mainThreadTime",
+            "granularity": 1,
+            "itemType": "ms",
+            "text": "Main Thread Time"
+          }
+        ],
+        "items": [
+          {
+            "entity": {
+              "type": "link",
+              "text": "Google CDN",
+              "url": "https://developers.google.com/speed/libraries/"
+            },
+            "transferSize": 30174,
+            "mainThreadTime": 82.74100000000001
+          }
+        ],
+        "summary": {
+          "wastedBytes": 30174,
+          "wastedMs": 82.74100000000001
+        }
+      }
+    },
     "pwa-cross-browser": {
       "id": "pwa-cross-browser",
       "title": "Site works cross-browser",
@@ -3495,6 +3540,11 @@
           "weight": 0,
           "group": "diagnostics"
         },
+        {
+          "id": "third-party-summary",
+          "weight": 0,
+          "group": "diagnostics"
+        },
         {
           "id": "network-requests",
           "weight": 0
@@ -4513,6 +4563,12 @@
         "duration": 100,
         "entryType": "measure"
       },
+      {
+        "startTime": 0,
+        "name": "lh:audit:third-party-summary",
+        "duration": 100,
+        "entryType": "measure"
+      },
       {
         "startTime": 0,
         "name": "lh:audit:pwa-cross-browser",
@@ -5399,6 +5455,36 @@
           "path": "audits[resource-summary].displayValue"
         }
       ],
+      "lighthouse-core/audits/third-party-summary.js | title": [
+        "audits[third-party-summary].title"
+      ],
+      "lighthouse-core/audits/third-party-summary.js | description": [
+        "audits[third-party-summary].description"
+      ],
+      "lighthouse-core/audits/third-party-summary.js | displayValue": [
+        {
+          "values": {
+            "itemCount": 1
+          },
+          "path": "audits[third-party-summary].displayValue"
+        }
+      ],
+      "lighthouse-core/audits/third-party-summary.js | columnThirdParty": [
+        "audits[third-party-summary].details.headings[0].text"
+      ],
+      "lighthouse-core/lib/i18n/i18n.js | columnSize": [
+        "audits[third-party-summary].details.headings[1].text",
+        "audits[uses-long-cache-ttl].details.headings[2].text",
+        "audits[total-byte-weight].details.headings[1].text",
+        "audits[render-blocking-resources].details.headings[1].label",
+        "audits[unminified-javascript].details.headings[1].label",
+        "audits[uses-webp-images].details.headings[2].label",
+        "audits[uses-text-compression].details.headings[1].label",
+        "audits[tap-targets].details.headings[1].text"
+      ],
+      "lighthouse-core/audits/third-party-summary.js | columnMainThreadTime": [
+        "audits[third-party-summary].details.headings[2].text"
+      ],
       "lighthouse-core/audits/accessibility/accesskeys.js | title": [
         "audits.accesskeys.title"
       ],
@@ -5634,15 +5720,6 @@
       "lighthouse-core/lib/i18n/i18n.js | columnCacheTTL": [
         "audits[uses-long-cache-ttl].details.headings[1].text"
       ],
-      "lighthouse-core/lib/i18n/i18n.js | columnSize": [
-        "audits[uses-long-cache-ttl].details.headings[2].text",
-        "audits[total-byte-weight].details.headings[1].text",
-        "audits[render-blocking-resources].details.headings[1].label",
-        "audits[unminified-javascript].details.headings[1].label",
-        "audits[uses-webp-images].details.headings[2].label",
-        "audits[uses-text-compression].details.headings[1].label",
-        "audits[tap-targets].details.headings[1].text"
-      ],
       "lighthouse-core/audits/byte-efficiency/total-byte-weight.js | title": [
         "audits[total-byte-weight].title"
       ],
diff --git a/package.json b/package.json
index b16ac4f42b4f..cceb6d70d364 100644
--- a/package.json
+++ b/package.json
@@ -162,6 +162,7 @@
     "robots-parser": "^2.0.1",
     "semver": "^5.3.0",
     "speedline-core": "1.4.2",
+    "third-party-web": "^0.8.2",
     "update-notifier": "^2.5.0",
     "ws": "3.3.2",
     "yargs": "3.32.0",
diff --git a/proto/sample_v2_round_trip.json b/proto/sample_v2_round_trip.json
index 54f58ebd45ec..baf0bb7add7f 100644
--- a/proto/sample_v2_round_trip.json
+++ b/proto/sample_v2_round_trip.json
@@ -2569,6 +2569,51 @@
             "scoreDisplayMode": "binary",
             "title": "Does not set an address-bar theme color"
         },
+        "third-party-summary": {
+            "description": "Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading. [Learn more](https://developers.google.com/web/fundamentals/performance/optimizing-content-efficiency/loading-third-party-javascript/).",
+            "details": {
+                "headings": [
+                    {
+                        "itemType": "link",
+                        "key": "entity",
+                        "text": "Third-Party"
+                    },
+                    {
+                        "granularity": 1.0,
+                        "itemType": "bytes",
+                        "key": "transferSize",
+                        "text": "Size"
+                    },
+                    {
+                        "granularity": 1.0,
+                        "itemType": "ms",
+                        "key": "mainThreadTime",
+                        "text": "Main Thread Time"
+                    }
+                ],
+                "items": [
+                    {
+                        "entity": {
+                            "text": "Google CDN",
+                            "type": "link",
+                            "url": "https://developers.google.com/speed/libraries/"
+                        },
+                        "mainThreadTime": 82.74100000000001,
+                        "transferSize": 30174.0
+                    }
+                ],
+                "summary": {
+                    "wastedBytes": 30174.0,
+                    "wastedMs": 82.74100000000001
+                },
+                "type": "table"
+            },
+            "displayValue": "1 Third-Party Found",
+            "id": "third-party-summary",
+            "score": null,
+            "scoreDisplayMode": "informative",
+            "title": "Third-Party Usage"
+        },
         "time-to-first-byte": {
             "description": "Time To First Byte identifies the time at which your server sends a response. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/ttfb).",
             "details": {
@@ -3624,6 +3669,11 @@
                     "id": "resource-summary",
                     "weight": 0.0
                 },
+                {
+                    "group": "diagnostics",
+                    "id": "third-party-summary",
+                    "weight": 0.0
+                },
                 {
                     "id": "network-requests",
                     "weight": 0.0
@@ -4409,6 +4459,12 @@
                 "name": "lh:audit:resource-summary",
                 "startTime": 0.0
             },
+            {
+                "duration": 100.0,
+                "entryType": "measure",
+                "name": "lh:audit:third-party-summary",
+                "startTime": 0.0
+            },
             {
                 "duration": 100.0,
                 "entryType": "measure",
diff --git a/types/audit-details.d.ts b/types/audit-details.d.ts
index 155d52ae716f..0a58c126744d 100644
--- a/types/audit-details.d.ts
+++ b/types/audit-details.d.ts
@@ -145,6 +145,7 @@ declare global {
       /**
        * A value used within a details object, intended to be displayed as a
        * link with text, regardless of the controlling heading's valueType.
+       * If URL is the empty string, fallsback to a basic `TextValue`.
        */
       export interface LinkValue {
         type: 'link',
diff --git a/yarn.lock b/yarn.lock
index 4c56add77134..da7774d54d66 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7317,6 +7317,11 @@ text-table@~0.2.0:
   resolved "https://registry.yarnpkg.com/text-table/-/text-table-0.2.0.tgz#7f5ee823ae805207c00af2df4a84ec3fcfa570b4"
   integrity sha1-f17oI66AUgfACvLfSoTsP8+lcLQ=
 
+third-party-web@^0.8.2:
+  version "0.8.2"
+  resolved "https://registry.yarnpkg.com/third-party-web/-/third-party-web-0.8.2.tgz#9a13841174a2b2333a15233cb6dbf6553c03a7be"
+  integrity sha512-HVsNbtlvshQ7X+HwiMvVbes+aH5KwvfncUcUR1EaJ9qENZO/I3fNysunKBUtJZeVoIYq3HHKqeDayarTmBtdPw==
+
 throat@^4.0.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/throat/-/throat-4.1.0.tgz#89037cbc92c56ab18926e6ba4cbb200e15672a6a"

From 381933908c1ffb6426722ee6529def9649694982 Mon Sep 17 00:00:00 2001
From: Shane Exterkamp <shaneexterkamp5@gmail.com>
Date: Tue, 25 Jun 2019 12:28:17 -0700
Subject: [PATCH 057/110] i18n: localize audits in best-practices (#9092)

---
 lighthouse-core/audits/deprecations.js        |  43 ++-
 .../audits/dobetterweb/appcache-manifest.js   |  26 +-
 lighthouse-core/audits/dobetterweb/doctype.js |  39 ++-
 .../external-anchors-use-rel-noopener.js      |  39 ++-
 .../dobetterweb/geolocation-on-start.js       |  27 +-
 .../audits/dobetterweb/js-libraries.js        |  23 +-
 .../audits/dobetterweb/no-document-write.js   |  27 +-
 .../dobetterweb/no-vulnerable-libraries.js    |  67 +++-
 .../dobetterweb/notification-on-start.js      |  27 +-
 .../password-inputs-can-be-pasted-into.js     |  25 +-
 .../audits/dobetterweb/uses-http2.js          |  40 ++-
 .../uses-passive-event-listeners.js           |  27 +-
 lighthouse-core/audits/errors-in-console.js   |  27 +-
 lighthouse-core/audits/image-aspect-ratio.js  |  37 ++-
 lighthouse-core/audits/is-on-https.js         |  47 ++-
 lighthouse-core/config/default-config.js      |   4 +-
 lighthouse-core/lib/i18n/en-US.json           | 312 +++++++++++++++++-
 lighthouse-core/lib/i18n/i18n.js              |  18 +-
 .../test/audits/deprecations-test.js          |   4 +-
 .../test/audits/dobetterweb/doctype-test.js   |  12 +-
 .../no-vulnerable-libraries-test.js           |  17 +-
 .../audits/dobetterweb/uses-http2-test.js     |  10 +-
 .../test/audits/is-on-https-test.js           |   4 +-
 lighthouse-core/test/results/sample_v2.json   | 230 ++++++++++++-
 proto/sample_v2_round_trip.json               |   4 +-
 25 files changed, 950 insertions(+), 186 deletions(-)

diff --git a/lighthouse-core/audits/deprecations.js b/lighthouse-core/audits/deprecations.js
index 238ee9ddb102..f7eb7b14bfb2 100644
--- a/lighthouse-core/audits/deprecations.js
+++ b/lighthouse-core/audits/deprecations.js
@@ -12,7 +12,28 @@
  */
 
 const Audit = require('./audit.js');
-const Util = require('../report/html/renderer/util.js');
+const i18n = require('../lib/i18n/i18n.js');
+
+const UIStrings = {
+  /** Title of a Lighthouse audit that provides detail on the use of deprecated APIs. This descriptive title is shown to users when the page does not use deprecated APIs. */
+  title: 'Avoids deprecated APIs',
+  /** Title of a Lighthouse audit that provides detail on the use of deprecated APIs. This descriptive title is shown to users when the page uses deprecated APIs. */
+  failureTitle: 'Uses deprecated APIs',
+  /** Description of a Lighthouse audit that tells the user why they should not use deprecated APIs on their page. This is displayed after a user expands the section to see more. No character length limits. 'Learn More' becomes link text to additional documentation. */
+  description: 'Deprecated APIs will eventually be removed from the browser. ' +
+      '[Learn more](https://www.chromestatus.com/features#deprecated).',
+  /** [ICU Syntax] Label for the audit identifying the number of warnings generated by using deprecated APIs. */
+  displayValue: `{itemCount, plural,
+    =1 {1 warning found}
+    other {# warnings found}
+    }`,
+  /** Header of the table column which displays the warning message describing use of a deprecated API by code running in the web page. */
+  columnDeprecate: 'Deprecation / Warning',
+  /** Table column header for line of code (eg. 432) that is using a deprecated API. */
+  columnLine: 'Line',
+};
+
+const str_ = i18n.createMessageInstanceIdFn(__filename, UIStrings);
 
 class Deprecations extends Audit {
   /**
@@ -21,10 +42,9 @@ class Deprecations extends Audit {
   static get meta() {
     return {
       id: 'deprecations',
-      title: 'Avoids deprecated APIs',
-      failureTitle: 'Uses deprecated APIs',
-      description: 'Deprecated APIs will eventually be removed from the browser. ' +
-          '[Learn more](https://www.chromestatus.com/features#deprecated).',
+      title: str_(UIStrings.title),
+      failureTitle: str_(UIStrings.failureTitle),
+      description: str_(UIStrings.description),
       requiredArtifacts: ['ConsoleMessages'],
     };
   }
@@ -47,17 +67,15 @@ class Deprecations extends Audit {
 
     /** @type {LH.Audit.Details.Table['headings']} */
     const headings = [
-      {key: 'value', itemType: 'code', text: 'Deprecation / Warning'},
-      {key: 'url', itemType: 'url', text: 'URL'},
-      {key: 'lineNumber', itemType: 'text', text: 'Line'},
+      {key: 'value', itemType: 'code', text: str_(UIStrings.columnDeprecate)},
+      {key: 'url', itemType: 'url', text: str_(i18n.UIStrings.columnURL)},
+      {key: 'lineNumber', itemType: 'text', text: str_(UIStrings.columnLine)},
     ];
     const details = Audit.makeTableDetails(headings, deprecations);
 
     let displayValue = '';
-    if (deprecations.length > 1) {
-      displayValue = `${Util.formatNumber(deprecations.length)} warnings found`;
-    } else if (deprecations.length === 1) {
-      displayValue = `${deprecations.length} warning found`;
+    if (deprecations.length > 0) {
+      displayValue = str_(UIStrings.displayValue, {itemCount: deprecations.length});
     }
 
     return {
@@ -72,3 +90,4 @@ class Deprecations extends Audit {
 }
 
 module.exports = Deprecations;
+module.exports.UIStrings = UIStrings;
diff --git a/lighthouse-core/audits/dobetterweb/appcache-manifest.js b/lighthouse-core/audits/dobetterweb/appcache-manifest.js
index f475db34ce9b..1f133a89aa14 100644
--- a/lighthouse-core/audits/dobetterweb/appcache-manifest.js
+++ b/lighthouse-core/audits/dobetterweb/appcache-manifest.js
@@ -11,6 +11,21 @@
 'use strict';
 
 const Audit = require('../audit.js');
+const i18n = require('../../lib/i18n/i18n.js');
+
+const UIStrings = {
+  /** Title of a Lighthouse audit that provides detail on the use of the Application Cache API. This descriptive title is shown to users when they do not use the Application Cache API. */
+  title: 'Avoids Application Cache',
+  /** Title of a Lighthouse audit that provides detail on the use of the Application Cache API. This descriptive title is shown to users when they do use the Application Cache API, which is considered bad practice. */
+  failureTitle: 'Uses Application Cache',
+  /** Description of a Lighthouse audit that tells the user why they should not use the Application Cache API. This is displayed after a user expands the section to see more. No character length limits. 'Learn More' becomes link text to additional documentation. */
+  description: 'Application Cache is deprecated. ' +
+    '[Learn more](https://developers.google.com/web/tools/lighthouse/audits/appcache).',
+  /** Label for the audit identifying uses of the Application Cache. */
+  displayValue: 'Found "{AppCacheManifest}"',
+};
+
+const str_ = i18n.createMessageInstanceIdFn(__filename, UIStrings);
 
 class AppCacheManifestAttr extends Audit {
   /**
@@ -19,10 +34,9 @@ class AppCacheManifestAttr extends Audit {
   static get meta() {
     return {
       id: 'appcache-manifest',
-      title: 'Avoids Application Cache',
-      failureTitle: 'Uses Application Cache',
-      description: 'Application Cache is deprecated. ' +
-          '[Learn more](https://developers.google.com/web/tools/lighthouse/audits/appcache).',
+      title: str_(UIStrings.title),
+      failureTitle: str_(UIStrings.failureTitle),
+      description: str_(UIStrings.description),
       requiredArtifacts: ['AppCacheManifest'],
     };
   }
@@ -33,7 +47,8 @@ class AppCacheManifestAttr extends Audit {
    */
   static audit(artifacts) {
     const usingAppcache = artifacts.AppCacheManifest !== null;
-    const displayValue = usingAppcache ? `Found "${artifacts.AppCacheManifest}"` : '';
+    const displayValue = usingAppcache ?
+      str_(UIStrings.displayValue, {AppCacheManifest: artifacts.AppCacheManifest}) : '';
 
     return {
       score: usingAppcache ? 0 : 1,
@@ -43,3 +58,4 @@ class AppCacheManifestAttr extends Audit {
 }
 
 module.exports = AppCacheManifestAttr;
+module.exports.UIStrings = UIStrings;
diff --git a/lighthouse-core/audits/dobetterweb/doctype.js b/lighthouse-core/audits/dobetterweb/doctype.js
index 4ba11830db2f..48f38df9c789 100644
--- a/lighthouse-core/audits/dobetterweb/doctype.js
+++ b/lighthouse-core/audits/dobetterweb/doctype.js
@@ -6,6 +6,28 @@
 'use strict';
 
 const Audit = require('../audit.js');
+const i18n = require('../../lib/i18n/i18n.js');
+
+const UIStrings = {
+  /** Title of a Lighthouse audit that provides detail on the doctype of a page. This descriptive title is shown to users when the pages's doctype is set to HTML. */
+  title: 'Page has the HTML doctype',
+  /** Title of a Lighthouse audit that provides detail on the doctype of a page. This descriptive title is shown to users when the page's doctype is not set to HTML. */
+  failureTitle: 'Page lacks the HTML doctype, thus triggering quirks-mode',
+  /** Description of a Lighthouse audit that tells the user why they should define an HTML doctype. This is displayed after a user expands the section to see more. No character length limits. 'Learn More' becomes link text to additional documentation. */
+  description: 'Specifying a doctype prevents the browser ' +
+    'from switching to quirks-mode. Read more on the ' +
+    '[MDN Web Docs page](https://developer.mozilla.org/en-US/docs/Glossary/Doctype)',
+  /** Explanatory message stating that the document has no doctype. */
+  explanationNoDoctype: 'Document must contain a doctype',
+  /** Explanatory message stating that the publicId field is not empty. */
+  explanationPublicId: 'Expected publicId to be an empty string',
+  /** Explanatory message stating that the systemId field is not empty. */
+  explanationSystemId: 'Expected systemId to be an empty string',
+  /** Explanatory message stating that the doctype is set, but is not "html" and is therefore invalid. */
+  explanationBadDoctype: 'Doctype name must be the lowercase string `html`',
+};
+
+const str_ = i18n.createMessageInstanceIdFn(__filename, UIStrings);
 
 class Doctype extends Audit {
   /**
@@ -14,11 +36,9 @@ class Doctype extends Audit {
   static get meta() {
     return {
       id: 'doctype',
-      title: 'Page has the HTML doctype',
-      failureTitle: 'Page is missing the HTML doctype',
-      description: 'Specifying a doctype prevents the browser from switching to quirks-mode.' +
-                'Read more on the ' +
-                '[MDN Web Docs page](https://developer.mozilla.org/en-US/docs/Glossary/Doctype)',
+      title: str_(UIStrings.title),
+      failureTitle: str_(UIStrings.failureTitle),
+      description: str_(UIStrings.description),
       requiredArtifacts: ['Doctype'],
     };
   }
@@ -31,7 +51,7 @@ class Doctype extends Audit {
     if (!artifacts.Doctype) {
       return {
         score: 0,
-        explanation: 'Document must contain a doctype',
+        explanation: str_(UIStrings.explanationNoDoctype),
       };
     }
 
@@ -43,14 +63,14 @@ class Doctype extends Audit {
     if (doctypePublicId !== '') {
       return {
         score: 0,
-        explanation: 'Expected publicId to be an empty string',
+        explanation: str_(UIStrings.explanationPublicId),
       };
     }
 
     if (doctypeSystemId !== '') {
       return {
         score: 0,
-        explanation: 'Expected systemId to be an empty string',
+        explanation: str_(UIStrings.explanationSystemId),
       };
     }
 
@@ -64,10 +84,11 @@ class Doctype extends Audit {
     } else {
       return {
         score: 0,
-        explanation: 'Doctype name must be the lowercase string `html`',
+        explanation: str_(UIStrings.explanationBadDoctype),
       };
     }
   }
 }
 
 module.exports = Doctype;
+module.exports.UIStrings = UIStrings;
diff --git a/lighthouse-core/audits/dobetterweb/external-anchors-use-rel-noopener.js b/lighthouse-core/audits/dobetterweb/external-anchors-use-rel-noopener.js
index 7333085ce078..f7ad647bb108 100644
--- a/lighthouse-core/audits/dobetterweb/external-anchors-use-rel-noopener.js
+++ b/lighthouse-core/audits/dobetterweb/external-anchors-use-rel-noopener.js
@@ -7,6 +7,27 @@
 
 const URL = require('../../lib/url-shim.js');
 const Audit = require('../audit.js');
+const i18n = require('../../lib/i18n/i18n.js');
+
+const UIStrings = {
+  /** Title of a Lighthouse audit that provides detail on the cross-origin links that the web page contains, and whether the links can be considered safe. This descriptive title is shown to users when all links are safe. */
+  title: 'Links to cross-origin destinations are safe',
+  /** Title of a Lighthouse audit that provides detail on the cross-origin links that the web page contains, and whether the links can be considered safe. This descriptive title is shown to users when not all links can be considered safe. */
+  failureTitle: 'Links to cross-origin destinations are unsafe',
+  /** Description of a Lighthouse audit that tells the user why and how they should secure cross-origin links. This is displayed after a user expands the section to see more. No character length limits. 'Learn More' becomes link text to additional documentation. */
+  description: 'Add `rel="noopener"` or `rel="noreferrer"` to any external links to improve ' +
+    'performance and prevent security vulnerabilities. ' +
+    '[Learn more](https://developers.google.com/web/tools/lighthouse/audits/noopener).',
+  /** Warning that some links' destinations cannot be determined and therefore the audit cannot evaluate the link's safety. */
+  warning: 'Unable to determine the destination for anchor ({anchorHTML}). ' +
+    'If not used as a hyperlink, consider removing target=_blank.',
+  /** Label for a column in a data table; entries will be the target attribute of a link. Each entry is either an empty string or a string like `_blank`.  */
+  columnTarget: 'Target',
+  /** Label for a column in a data table; entries will be the values of the html "rel" attribute from link in a page.  */
+  columnRel: 'Rel',
+};
+
+const str_ = i18n.createMessageInstanceIdFn(__filename, UIStrings);
 
 class ExternalAnchorsUseRelNoopenerAudit extends Audit {
   /**
@@ -15,11 +36,9 @@ class ExternalAnchorsUseRelNoopenerAudit extends Audit {
   static get meta() {
     return {
       id: 'external-anchors-use-rel-noopener',
-      title: 'Links to cross-origin destinations are safe',
-      failureTitle: 'Links to cross-origin destinations are unsafe',
-      description: 'Add `rel="noopener"` or `rel="noreferrer"` to any external links to improve ' +
-          'performance and prevent security vulnerabilities. ' +
-          '[Learn more](https://developers.google.com/web/tools/lighthouse/audits/noopener).',
+      title: str_(UIStrings.title),
+      failureTitle: str_(UIStrings.failureTitle),
+      description: str_(UIStrings.description),
       requiredArtifacts: ['URL', 'AnchorElements'],
     };
   }
@@ -40,8 +59,7 @@ class ExternalAnchorsUseRelNoopenerAudit extends Audit {
         try {
           return new URL(anchor.href).host !== pageHost;
         } catch (err) {
-          warnings.push(`Unable to determine the destination for anchor (${anchor.outerHTML}). ` +
-            'If not used as a hyperlink, consider removing target=_blank.');
+          warnings.push(str_(UIStrings.warning, {anchorHTML: anchor.outerHTML}));
           return true;
         }
       })
@@ -59,9 +77,9 @@ class ExternalAnchorsUseRelNoopenerAudit extends Audit {
 
     /** @type {LH.Audit.Details.Table['headings']} */
     const headings = [
-      {key: 'href', itemType: 'url', text: 'URL'},
-      {key: 'target', itemType: 'text', text: 'Target'},
-      {key: 'rel', itemType: 'text', text: 'Rel'},
+      {key: 'href', itemType: 'url', text: str_(i18n.UIStrings.columnURL)},
+      {key: 'target', itemType: 'text', text: str_(UIStrings.columnTarget)},
+      {key: 'rel', itemType: 'text', text: str_(UIStrings.columnRel)},
     ];
 
     const details = Audit.makeTableDetails(headings, failingAnchors);
@@ -78,3 +96,4 @@ class ExternalAnchorsUseRelNoopenerAudit extends Audit {
 }
 
 module.exports = ExternalAnchorsUseRelNoopenerAudit;
+module.exports.UIStrings = UIStrings;
diff --git a/lighthouse-core/audits/dobetterweb/geolocation-on-start.js b/lighthouse-core/audits/dobetterweb/geolocation-on-start.js
index e773c3594415..208040e26c58 100644
--- a/lighthouse-core/audits/dobetterweb/geolocation-on-start.js
+++ b/lighthouse-core/audits/dobetterweb/geolocation-on-start.js
@@ -12,6 +12,20 @@
 'use strict';
 
 const ViolationAudit = require('../violation-audit.js');
+const i18n = require('../../lib/i18n/i18n.js');
+
+const UIStrings = {
+  /** Title of a Lighthouse audit that provides detail on geolocation permission requests while the page is loading. This descriptive title is shown to users when the page does not ask for geolocation permissions on load. */
+  title: 'Avoids requesting the geolocation permission on page load',
+  /** Title of a Lighthouse audit that provides detail on geolocation permissions requests. This descriptive title is shown to users when the page does ask for geolocation permissions on load. */
+  failureTitle: 'Requests the geolocation permission on page load',
+  /** Description of a Lighthouse audit that tells the user why they should not ask for geolocation permissions on load. This is displayed after a user expands the section to see more. No character length limits. 'Learn More' becomes link text to additional documentation. */
+  description: 'Users are mistrustful of or confused by sites that request their ' +
+    'location without context. Consider tying the request to a user action instead. ' +
+    '[Learn more](https://developers.google.com/web/tools/lighthouse/audits/geolocation-on-load).',
+};
+
+const str_ = i18n.createMessageInstanceIdFn(__filename, UIStrings);
 
 class GeolocationOnStart extends ViolationAudit {
   /**
@@ -20,11 +34,9 @@ class GeolocationOnStart extends ViolationAudit {
   static get meta() {
     return {
       id: 'geolocation-on-start',
-      title: 'Avoids requesting the geolocation permission on page load',
-      failureTitle: 'Requests the geolocation permission on page load',
-      description: 'Users are mistrustful of or confused by sites that request their ' +
-          'location without context. Consider tying the request to user gestures instead. ' +
-          '[Learn more](https://developers.google.com/web/tools/lighthouse/audits/geolocation-on-load).',
+      title: str_(UIStrings.title),
+      failureTitle: str_(UIStrings.failureTitle),
+      description: str_(UIStrings.description),
       requiredArtifacts: ['ConsoleMessages'],
     };
   }
@@ -39,8 +51,8 @@ class GeolocationOnStart extends ViolationAudit {
 
     /** @type {LH.Audit.Details.Table['headings']} */
     const headings = [
-      {key: 'url', itemType: 'url', text: 'URL'},
-      {key: 'label', itemType: 'text', text: 'Location'},
+      {key: 'url', itemType: 'url', text: str_(i18n.UIStrings.columnURL)},
+      {key: 'label', itemType: 'text', text: str_(i18n.UIStrings.columnLocation)},
     ];
     // TODO(bckenny): there should actually be a ts error here. results[0].stackTrace
     // should violate the results type. Shouldn't be removed from details items regardless.
@@ -57,3 +69,4 @@ class GeolocationOnStart extends ViolationAudit {
 }
 
 module.exports = GeolocationOnStart;
+module.exports.UIStrings = UIStrings;
diff --git a/lighthouse-core/audits/dobetterweb/js-libraries.js b/lighthouse-core/audits/dobetterweb/js-libraries.js
index cc255b179ba8..684feb7192bd 100644
--- a/lighthouse-core/audits/dobetterweb/js-libraries.js
+++ b/lighthouse-core/audits/dobetterweb/js-libraries.js
@@ -11,6 +11,20 @@
 'use strict';
 
 const Audit = require('../audit.js');
+const i18n = require('../../lib/i18n/i18n.js');
+
+const UIStrings = {
+  /** Title of a Lighthouse audit that provides detail on the Javascript libraries that are used on the page. */
+  title: 'Detected JavaScript libraries',
+  /** Description of a Lighthouse audit that tells the user what this audit is detecting. This is displayed after a user expands the section to see more. No character length limits. */
+  description: 'All front-end JavaScript libraries detected on the page.',
+  /** Label for a column in a data table; entries will be the names of the detected Javascript libraries.  */
+  columnName: 'Name',
+  /** Label for a column in a data table; entries will be the version numbers of the detected Javascript libraries.  */
+  columnVersion: 'Version',
+};
+
+const str_ = i18n.createMessageInstanceIdFn(__filename, UIStrings);
 
 class JsLibrariesAudit extends Audit {
   /**
@@ -19,8 +33,8 @@ class JsLibrariesAudit extends Audit {
   static get meta() {
     return {
       id: 'js-libraries',
-      title: 'Detected JavaScript libraries',
-      description: 'All front-end JavaScript libraries detected on the page.',
+      title: str_(UIStrings.title),
+      description: str_(UIStrings.description),
       requiredArtifacts: ['Stacks'],
     };
   }
@@ -40,8 +54,8 @@ class JsLibrariesAudit extends Audit {
 
     /** @type {LH.Audit.Details.Table['headings']} */
     const headings = [
-      {key: 'name', itemType: 'text', text: 'Name'},
-      {key: 'version', itemType: 'text', text: 'Version'},
+      {key: 'name', itemType: 'text', text: str_(UIStrings.columnName)},
+      {key: 'version', itemType: 'text', text: str_(UIStrings.columnVersion)},
     ];
     const details = Audit.makeTableDetails(headings, libDetails, {});
 
@@ -53,3 +67,4 @@ class JsLibrariesAudit extends Audit {
 }
 
 module.exports = JsLibrariesAudit;
+module.exports.UIStrings = UIStrings;
diff --git a/lighthouse-core/audits/dobetterweb/no-document-write.js b/lighthouse-core/audits/dobetterweb/no-document-write.js
index 6dca43f3b1ca..77368e048fba 100644
--- a/lighthouse-core/audits/dobetterweb/no-document-write.js
+++ b/lighthouse-core/audits/dobetterweb/no-document-write.js
@@ -11,6 +11,20 @@
 'use strict';
 
 const ViolationAudit = require('../violation-audit.js');
+const i18n = require('../../lib/i18n/i18n.js');
+
+const UIStrings = {
+  /** Title of a Lighthouse audit that provides detail on the page's use of the `document.write` API. This descriptive title is shown to users when the page does not use `document.write`. */
+  title: 'Avoids `document.write()`',
+  /** Title of a Lighthouse audit that provides detail on the page's use of the `document.write` API. This descriptive title is shown to users when the page does use `document.write`. */
+  failureTitle: 'Uses `document.write()`',
+  /** Description of a Lighthouse audit that tells the user why they should avoid `document.write`. This is displayed after a user expands the section to see more. No character length limits. 'Learn More' becomes link text to additional documentation. */
+  description: 'For users on slow connections, external scripts dynamically injected via ' +
+      '`document.write()` can delay page load by tens of seconds. ' +
+      '[Learn more](https://developers.google.com/web/tools/lighthouse/audits/document-write).',
+};
+
+const str_ = i18n.createMessageInstanceIdFn(__filename, UIStrings);
 
 class NoDocWriteAudit extends ViolationAudit {
   /**
@@ -19,11 +33,9 @@ class NoDocWriteAudit extends ViolationAudit {
   static get meta() {
     return {
       id: 'no-document-write',
-      title: 'Avoids `document.write()`',
-      failureTitle: 'Uses `document.write()`',
-      description: 'For users on slow connections, external scripts dynamically injected via ' +
-          '`document.write()` can delay page load by tens of seconds. ' +
-          '[Learn more](https://developers.google.com/web/tools/lighthouse/audits/document-write).',
+      title: str_(UIStrings.title),
+      failureTitle: str_(UIStrings.failureTitle),
+      description: str_(UIStrings.description),
       requiredArtifacts: ['ConsoleMessages'],
     };
   }
@@ -37,8 +49,8 @@ class NoDocWriteAudit extends ViolationAudit {
 
     /** @type {LH.Audit.Details.Table['headings']} */
     const headings = [
-      {key: 'url', itemType: 'url', text: 'URL'},
-      {key: 'label', itemType: 'text', text: 'Location'},
+      {key: 'url', itemType: 'url', text: str_(i18n.UIStrings.columnURL)},
+      {key: 'label', itemType: 'text', text: str_(i18n.UIStrings.columnLocation)},
     ];
     // TODO(bckenny): see TODO in geolocation-on-start
     const details = ViolationAudit.makeTableDetails(headings, results);
@@ -54,3 +66,4 @@ class NoDocWriteAudit extends ViolationAudit {
 }
 
 module.exports = NoDocWriteAudit;
+module.exports.UIStrings = UIStrings;
diff --git a/lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js b/lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js
index 772f9c37e1bb..ec3036e1053a 100644
--- a/lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js
+++ b/lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js
@@ -16,9 +16,49 @@ const Audit = require('../audit.js');
 const Sentry = require('../../lib/sentry.js');
 const semver = require('semver');
 const snykDatabase = require('../../../third-party/snyk/snapshot.json');
+const i18n = require('../../lib/i18n/i18n.js');
+
+const UIStrings = {
+  /** Title of a Lighthouse audit that provides detail on Javascript libraries the page uses. This descriptive title is shown to users when all Javascript libraries are free of known security vulnerabilities. */
+  title: 'Avoids front-end JavaScript libraries' +
+    ' with known security vulnerabilities',
+  /** Title of a Lighthouse audit that provides detail on Javascript libraries the page uses. This descriptive title is shown to users when some detected Javascript libraries have known security vulnerabilities. */
+  failureTitle: 'Includes front-end JavaScript libraries' +
+    ' with known security vulnerabilities',
+  /** Description of a Lighthouse audit that tells the user why they should be concerned about the third party Javascript libraries that they use. This is displayed after a user expands the section to see more. No character length limits. 'Learn More' becomes link text to additional documentation. */
+  description: 'Some third-party scripts may contain known security vulnerabilities ' +
+    'that are easily identified and exploited by attackers. ' +
+    '[Learn more](https://developers.google.com/web/tools/lighthouse/audits/vulnerabilities).',
+  /** [ICU Syntax] Label for the audit identifying the number of vulnerable Javascript libraries found. */
+  displayValue: `{itemCount, plural,
+    =1 {1 vulnerability detected}
+    other {# vulnerabilities detected}
+    }`,
+  /** Label for a column in a data table; entries will be the version numbers of the Javascript libraries found.  */
+  columnVersion: 'Library Version',
+  /** Label for a column in a data table; entries will be the counts of JavaScript-library vulnerabilities found.  */
+  columnVuln: 'Vulnerability Count',
+  /** Label for a column in a data table; entries will be the severity of the vulnerabilities found within a Javascript library. */
+  columnSeverity: 'Highest Severity',
+  /** Table row value for the severity of a small, or low impact Javascript vulnerability.  Part of a ranking scale in the form: low, medium, high. */
+  rowSeverityLow: 'Low',
+  /** Table row value for the severity of a Javascript vulnerability.  Part of a ranking scale in the form: low, medium, high. */
+  rowSeverityMedium: 'Medium',
+  /** Table row value for the severity of a high impact, or dangerous Javascript vulnerability.  Part of a ranking scale in the form: low, medium, high. */
+  rowSeverityHigh: 'High',
+};
+
+const str_ = i18n.createMessageInstanceIdFn(__filename, UIStrings);
 
 const SEMVER_REGEX = /^(\d+\.\d+\.\d+)[^-0-9]+/;
 
+/** @type {Object<string, string>} */
+const rowMap = {
+  'low': str_(UIStrings.rowSeverityLow),
+  'medium': str_(UIStrings.rowSeverityMedium),
+  'high': str_(UIStrings.rowSeverityHigh),
+};
+
 /** @typedef {{npm: Object<string, Array<{id: string, severity: string, semver: {vulnerable: Array<string>}}>>}} SnykDB */
 /** @typedef {{severity: string, numericSeverity: number, library: string, url: string}} Vulnerability */
 
@@ -29,13 +69,9 @@ class NoVulnerableLibrariesAudit extends Audit {
   static get meta() {
     return {
       id: 'no-vulnerable-libraries',
-      title: 'Avoids front-end JavaScript libraries'
-        + ' with known security vulnerabilities',
-      failureTitle: 'Includes front-end JavaScript libraries'
-        + ' with known security vulnerabilities',
-      description: 'Some third-party scripts may contain known security vulnerabilities ' +
-        'that are easily identified and exploited by attackers. ' +
-        '[Learn more](https://developers.google.com/web/tools/lighthouse/audits/vulnerabilities).',
+      title: str_(UIStrings.title),
+      failureTitle: str_(UIStrings.failureTitle),
+      description: str_(UIStrings.description),
       requiredArtifacts: ['Stacks'],
     };
   }
@@ -110,7 +146,7 @@ class NoVulnerableLibrariesAudit extends Audit {
 
     const vulns = matchingVulns.map(vuln => {
       return {
-        severity: vuln.severity,
+        severity: rowMap[vuln.severity],
         numericSeverity: this.severityMap[vuln.severity],
         library: `${lib.name}@${normalizedVersion}`,
         url: 'https://snyk.io/vuln/' + vuln.id,
@@ -156,7 +192,7 @@ class NoVulnerableLibrariesAudit extends Audit {
 
       let highestSeverity;
       if (vulns.length > 0) {
-        highestSeverity = this.highestSeverity(vulns).replace(/^\w/, l => l.toUpperCase());
+        highestSeverity = this.highestSeverity(vulns);
 
         vulnerabilityResults.push({
           highestSeverity,
@@ -179,17 +215,15 @@ class NoVulnerableLibrariesAudit extends Audit {
     });
 
     let displayValue = '';
-    if (totalVulns > 1) {
-      displayValue = `${totalVulns} vulnerabilities detected`;
-    } else if (totalVulns === 1) {
-      displayValue = `${totalVulns} vulnerability detected`;
+    if (totalVulns > 0) {
+      displayValue = str_(UIStrings.displayValue, {itemCount: totalVulns});
     }
 
     /** @type {LH.Audit.Details.Table['headings']} */
     const headings = [
-      {key: 'detectedLib', itemType: 'link', text: 'Library Version'},
-      {key: 'vulnCount', itemType: 'text', text: 'Vulnerability Count'},
-      {key: 'highestSeverity', itemType: 'text', text: 'Highest Severity'},
+      {key: 'detectedLib', itemType: 'link', text: str_(UIStrings.columnVersion)},
+      {key: 'vulnCount', itemType: 'text', text: str_(UIStrings.columnVuln)},
+      {key: 'highestSeverity', itemType: 'text', text: str_(UIStrings.columnSeverity)},
     ];
     const details = Audit.makeTableDetails(headings, vulnerabilityResults, {});
 
@@ -206,3 +240,4 @@ class NoVulnerableLibrariesAudit extends Audit {
 }
 
 module.exports = NoVulnerableLibrariesAudit;
+module.exports.UIStrings = UIStrings;
diff --git a/lighthouse-core/audits/dobetterweb/notification-on-start.js b/lighthouse-core/audits/dobetterweb/notification-on-start.js
index cbf73a65c3a0..25559a96cec0 100644
--- a/lighthouse-core/audits/dobetterweb/notification-on-start.js
+++ b/lighthouse-core/audits/dobetterweb/notification-on-start.js
@@ -12,6 +12,20 @@
 'use strict';
 
 const ViolationAudit = require('../violation-audit.js');
+const i18n = require('../../lib/i18n/i18n.js');
+
+const UIStrings = {
+  /** Title of a Lighthouse audit that provides detail on the page's notification permission requests. This descriptive title is shown to users when the page does not ask for notification permission on load. */
+  title: 'Avoids requesting the notification permission on page load',
+  /** Title of a Lighthouse audit that provides detail on the page's notification permission requests. This descriptive title is shown to users when the page does ask for notification permission on load. */
+  failureTitle: 'Requests the notification permission on page load',
+  /** Description of a Lighthouse audit that tells the user why they should not ask for notification permission on load. This is displayed after a user expands the section to see more. No character length limits. 'Learn More' becomes link text to additional documentation. */
+  description: 'Users are mistrustful of or confused by sites that request to send ' +
+      'notifications without context. Consider tying the request to user gestures ' +
+      'instead. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/notifications-on-load).',
+};
+
+const str_ = i18n.createMessageInstanceIdFn(__filename, UIStrings);
 
 class NotificationOnStart extends ViolationAudit {
   /**
@@ -20,11 +34,9 @@ class NotificationOnStart extends ViolationAudit {
   static get meta() {
     return {
       id: 'notification-on-start',
-      title: 'Avoids requesting the notification permission on page load',
-      failureTitle: 'Requests the notification permission on page load',
-      description: 'Users are mistrustful of or confused by sites that request to send ' +
-          'notifications without context. Consider tying the request to user gestures ' +
-          'instead. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/notifications-on-load).',
+      title: str_(UIStrings.title),
+      failureTitle: str_(UIStrings.failureTitle),
+      description: str_(UIStrings.description),
       requiredArtifacts: ['ConsoleMessages'],
     };
   }
@@ -38,8 +50,8 @@ class NotificationOnStart extends ViolationAudit {
 
     /** @type {LH.Audit.Details.Table['headings']} */
     const headings = [
-      {key: 'url', itemType: 'url', text: 'URL'},
-      {key: 'label', itemType: 'text', text: 'Location'},
+      {key: 'url', itemType: 'url', text: str_(i18n.UIStrings.columnURL)},
+      {key: 'label', itemType: 'text', text: str_(i18n.UIStrings.columnLocation)},
     ];
     // TODO(bckenny): see TODO in geolocation-on-start
     const details = ViolationAudit.makeTableDetails(headings, results);
@@ -55,3 +67,4 @@ class NotificationOnStart extends ViolationAudit {
 }
 
 module.exports = NotificationOnStart;
+module.exports.UIStrings = UIStrings;
diff --git a/lighthouse-core/audits/dobetterweb/password-inputs-can-be-pasted-into.js b/lighthouse-core/audits/dobetterweb/password-inputs-can-be-pasted-into.js
index be42e2a0eb39..b417988ca634 100644
--- a/lighthouse-core/audits/dobetterweb/password-inputs-can-be-pasted-into.js
+++ b/lighthouse-core/audits/dobetterweb/password-inputs-can-be-pasted-into.js
@@ -6,6 +6,21 @@
 'use strict';
 
 const Audit = require('../audit.js');
+const i18n = require('../../lib/i18n/i18n.js');
+
+const UIStrings = {
+  /** Title of a Lighthouse audit that provides detail on the ability to paste into password fields. This descriptive title is shown to users when the page allows pasting of content into password fields. */
+  title: 'Allows users to paste into password fields',
+  /** Title of a Lighthouse audit that provides detail on the ability to paste into password fields. This descriptive title is shown to users when the page does not allow pasting of content into password fields. */
+  failureTitle: 'Prevents users to paste into password fields',
+  /** Description of a Lighthouse audit that tells the user why they should allow pasting of content into password fields. This is displayed after a user expands the section to see more. No character length limits. 'Learn More' becomes link text to additional documentation. */
+  description: 'Preventing password pasting undermines good security policy. ' +
+      '[Learn more](https://developers.google.com/web/tools/lighthouse/audits/password-pasting).',
+  /** Table column header for the HTML elements that do not allow pasting of content. */
+  columnFailingElem: 'Failing Elements',
+};
+
+const str_ = i18n.createMessageInstanceIdFn(__filename, UIStrings);
 
 class PasswordInputsCanBePastedIntoAudit extends Audit {
   /**
@@ -14,10 +29,9 @@ class PasswordInputsCanBePastedIntoAudit extends Audit {
   static get meta() {
     return {
       id: 'password-inputs-can-be-pasted-into',
-      title: 'Allows users to paste into password fields',
-      failureTitle: 'Prevents users to paste into password fields',
-      description: 'Preventing password pasting undermines good security policy. ' +
-          '[Learn more](https://developers.google.com/web/tools/lighthouse/audits/password-pasting).',
+      title: str_(UIStrings.title),
+      failureTitle: str_(UIStrings.failureTitle),
+      description: str_(UIStrings.description),
       requiredArtifacts: ['PasswordInputsWithPreventedPaste'],
     };
   }
@@ -39,7 +53,7 @@ class PasswordInputsCanBePastedIntoAudit extends Audit {
 
     /** @type {LH.Audit.Details.Table['headings']} */
     const headings = [
-      {key: 'node', itemType: 'node', text: 'Failing Elements'},
+      {key: 'node', itemType: 'node', text: str_(UIStrings.columnFailingElem)},
     ];
 
     return {
@@ -53,3 +67,4 @@ class PasswordInputsCanBePastedIntoAudit extends Audit {
 }
 
 module.exports = PasswordInputsCanBePastedIntoAudit;
+module.exports.UIStrings = UIStrings;
diff --git a/lighthouse-core/audits/dobetterweb/uses-http2.js b/lighthouse-core/audits/dobetterweb/uses-http2.js
index 1df6e6f5ee5c..73d2524fb612 100644
--- a/lighthouse-core/audits/dobetterweb/uses-http2.js
+++ b/lighthouse-core/audits/dobetterweb/uses-http2.js
@@ -13,8 +13,27 @@
 
 const URL = require('../../lib/url-shim.js');
 const Audit = require('../audit.js');
-const Util = require('../../report/html/renderer/util.js');
 const NetworkRecords = require('../../computed/network-records.js');
+const i18n = require('../../lib/i18n/i18n.js');
+
+const UIStrings = {
+  /** Title of a Lighthouse audit that provides detail on whether the webpage uses HTTP/2 for resources it requests over the network. This descriptive title is shown to users when the page uses HTTP/2 for its requests. */
+  title: 'Uses HTTP/2 for its own resources',
+  /** Title of a Lighthouse audit that provides detail on whether the webpage uses HTTP/2 for resources it requests over the network. This descriptive title is shown to users when the page does not use HTTP/2 for its requests. */
+  failureTitle: 'Does not use HTTP/2 for all of its resources',
+  /** Description of a Lighthouse audit that tells the user why they should use HTTP/2. This is displayed after a user expands the section to see more. No character length limits. 'Learn More' becomes link text to additional documentation. */
+  description: 'HTTP/2 offers many benefits over HTTP/1.1, including binary headers, ' +
+      'multiplexing, and server push. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/http2).',
+  /** [ICU Syntax] Label identifying the number of network requests that were not served with HTTP/2. */
+  displayValue: `{itemCount, plural,
+    =1 {1 request not served via HTTP/2}
+    other {# requests not served via HTTP/2}
+    }`,
+  /**  Label for a column in a data table; entries in the column will be the HTTP Protocol used to make a network request. */
+  columnProtocol: 'Protocol',
+};
+
+const str_ = i18n.createMessageInstanceIdFn(__filename, UIStrings);
 
 class UsesHTTP2Audit extends Audit {
   /**
@@ -23,10 +42,9 @@ class UsesHTTP2Audit extends Audit {
   static get meta() {
     return {
       id: 'uses-http2',
-      title: 'Uses HTTP/2 for its own resources',
-      failureTitle: 'Does not use HTTP/2 for all of its resources',
-      description: 'HTTP/2 offers many benefits over HTTP/1.1, including binary headers, ' +
-          'multiplexing, and server push. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/http2).',
+      title: str_(UIStrings.title),
+      failureTitle: str_(UIStrings.failureTitle),
+      description: str_(UIStrings.description),
       requiredArtifacts: ['URL', 'devtoolsLogs'],
     };
   }
@@ -64,17 +82,14 @@ class UsesHTTP2Audit extends Audit {
       });
 
       let displayValue = '';
-      if (resources.length > 1) {
-        displayValue =
-          `${Util.formatNumber(resources.length)} requests not served via HTTP/2`;
-      } else if (resources.length === 1) {
-        displayValue = `${resources.length} request not served via HTTP/2`;
+      if (resources.length > 0) {
+        displayValue = str_(UIStrings.displayValue, {itemCount: resources.length});
       }
 
       /** @type {LH.Audit.Details.Table['headings']} */
       const headings = [
-        {key: 'url', itemType: 'url', text: 'URL'},
-        {key: 'protocol', itemType: 'text', text: 'Protocol'},
+        {key: 'url', itemType: 'url', text: str_(i18n.UIStrings.columnURL)},
+        {key: 'protocol', itemType: 'text', text: str_(UIStrings.columnProtocol)},
       ];
       const details = Audit.makeTableDetails(headings, resources);
 
@@ -93,3 +108,4 @@ class UsesHTTP2Audit extends Audit {
 }
 
 module.exports = UsesHTTP2Audit;
+module.exports.UIStrings = UIStrings;
diff --git a/lighthouse-core/audits/dobetterweb/uses-passive-event-listeners.js b/lighthouse-core/audits/dobetterweb/uses-passive-event-listeners.js
index bd53fe587d33..24e476c0a8c4 100644
--- a/lighthouse-core/audits/dobetterweb/uses-passive-event-listeners.js
+++ b/lighthouse-core/audits/dobetterweb/uses-passive-event-listeners.js
@@ -12,6 +12,20 @@
 'use strict';
 
 const ViolationAudit = require('../violation-audit.js');
+const i18n = require('../../lib/i18n/i18n.js');
+
+const UIStrings = {
+  /** Title of a Lighthouse audit that provides detail on the page's use of passive event listeners used to improve the scrolling performance of the page. This descriptive title is shown to users when the page does use passive listeners. */
+  title: 'Uses passive listeners to improve scrolling performance',
+  /** Title of a Lighthouse audit that provides detail on the page's use of passive event listeners used to improve the scrolling performance of the page. This descriptive title is shown to users when the page does not use passive listeners. */
+  failureTitle: 'Does not use passive listeners to improve scrolling performance',
+  /** Description of a Lighthouse audit that tells the user why they should use passive event listeners on the page. This is displayed after a user expands the section to see more. No character length limits. 'Learn More' becomes link text to additional documentation. */
+  description: 'Consider marking your touch and wheel event listeners as `passive` ' +
+      'to improve your page\'s scroll performance. ' +
+      '[Learn more](https://developers.google.com/web/tools/lighthouse/audits/passive-event-listeners).',
+};
+
+const str_ = i18n.createMessageInstanceIdFn(__filename, UIStrings);
 
 class PassiveEventsAudit extends ViolationAudit {
   /**
@@ -20,11 +34,9 @@ class PassiveEventsAudit extends ViolationAudit {
   static get meta() {
     return {
       id: 'uses-passive-event-listeners',
-      title: 'Uses passive listeners to improve scrolling performance',
-      failureTitle: 'Does not use passive listeners to improve scrolling performance',
-      description: 'Consider marking your touch and wheel event listeners as `passive` ' +
-          'to improve your page\'s scroll performance. ' +
-          '[Learn more](https://developers.google.com/web/tools/lighthouse/audits/passive-event-listeners).',
+      title: str_(UIStrings.title),
+      failureTitle: str_(UIStrings.failureTitle),
+      description: str_(UIStrings.description),
       requiredArtifacts: ['ConsoleMessages'],
     };
   }
@@ -38,8 +50,8 @@ class PassiveEventsAudit extends ViolationAudit {
 
     /** @type {LH.Audit.Details.Table['headings']} */
     const headings = [
-      {key: 'url', itemType: 'url', text: 'URL'},
-      {key: 'label', itemType: 'text', text: 'Location'},
+      {key: 'url', itemType: 'url', text: str_(i18n.UIStrings.columnURL)},
+      {key: 'label', itemType: 'text', text: str_(i18n.UIStrings.columnLocation)},
     ];
     // TODO(bckenny): see TODO in geolocation-on-start
     const details = ViolationAudit.makeTableDetails(headings, results);
@@ -55,3 +67,4 @@ class PassiveEventsAudit extends ViolationAudit {
 }
 
 module.exports = PassiveEventsAudit;
+module.exports.UIStrings = UIStrings;
diff --git a/lighthouse-core/audits/errors-in-console.js b/lighthouse-core/audits/errors-in-console.js
index c73fb2da935c..22b6afae448b 100644
--- a/lighthouse-core/audits/errors-in-console.js
+++ b/lighthouse-core/audits/errors-in-console.js
@@ -11,6 +11,21 @@
  */
 
 const Audit = require('./audit.js');
+const i18n = require('../lib/i18n/i18n.js');
+
+const UIStrings = {
+  /** Title of a Lighthouse audit that provides detail on browser errors. This descriptive title is shown to users when no browser errors were logged into the devtools console. */
+  title: 'No browser errors logged to the console',
+  /** Title of a Lighthouse audit that provides detail on browser errors. This descriptive title is shown to users when browser errors occurred and were logged into the devtools console. */
+  failureTitle: 'Browser errors were logged to the console',
+  /** Description of a Lighthouse audit that tells the user why errors being logged to the devtools console are a cause for concern and so should be fixed. This is displayed after a user expands the section to see more. No character length limits. */
+  description: 'Errors logged to the console indicate unresolved problems. ' +
+    'They can come from network request failures and other browser concerns.',
+  /**  Label for a column in a data table; entries in the column will be the descriptions of logged browser errors. */
+  columnDesc: 'Description',
+};
+
+const str_ = i18n.createMessageInstanceIdFn(__filename, UIStrings);
 
 class ErrorLogs extends Audit {
   /**
@@ -19,10 +34,9 @@ class ErrorLogs extends Audit {
   static get meta() {
     return {
       id: 'errors-in-console',
-      title: 'No browser errors logged to the console',
-      description: 'Errors logged to the console indicate unresolved problems. ' +
-        'They can come from network request failures and other browser concerns.',
-      failureTitle: 'Browser errors were logged to the console',
+      title: str_(UIStrings.title),
+      failureTitle: str_(UIStrings.failureTitle),
+      description: str_(UIStrings.description),
       requiredArtifacts: ['ConsoleMessages', 'RuntimeExceptions'],
     };
   }
@@ -62,8 +76,8 @@ class ErrorLogs extends Audit {
 
     /** @type {LH.Audit.Details.Table['headings']} */
     const headings = [
-      {key: 'url', itemType: 'url', text: 'URL'},
-      {key: 'description', itemType: 'code', text: 'Description'},
+      {key: 'url', itemType: 'url', text: str_(i18n.UIStrings.columnURL)},
+      {key: 'description', itemType: 'code', text: str_(UIStrings.columnDesc)},
     ];
 
     const details = Audit.makeTableDetails(headings, tableRows);
@@ -78,3 +92,4 @@ class ErrorLogs extends Audit {
 }
 
 module.exports = ErrorLogs;
+module.exports.UIStrings = UIStrings;
diff --git a/lighthouse-core/audits/image-aspect-ratio.js b/lighthouse-core/audits/image-aspect-ratio.js
index 51791f57d465..8dd975f975c2 100644
--- a/lighthouse-core/audits/image-aspect-ratio.js
+++ b/lighthouse-core/audits/image-aspect-ratio.js
@@ -12,8 +12,27 @@
 'use strict';
 
 const Audit = require('./audit.js');
-
 const URL = require('../lib/url-shim.js');
+const i18n = require('../lib/i18n/i18n.js');
+
+const UIStrings = {
+  /** Title of a Lighthouse audit that provides detail on the aspect ratios of all images on the page. This descriptive title is shown to users when all images use correct aspect ratios. */
+  title: 'Displays images with correct aspect ratio',
+  /** Title of a Lighthouse audit that provides detail on the aspect ratios of all images on the page. This descriptive title is shown to users when not all images use correct aspect ratios. */
+  failureTitle: 'Displays images with incorrect aspect ratio',
+  /** Description of a Lighthouse audit that tells the user why they should maintain the correct aspect ratios for all images. This is displayed after a user expands the section to see more. No character length limits. 'Learn More' becomes link text to additional documentation. */
+  description: 'Image display dimensions should match natural aspect ratio. ' +
+    '[Learn more](https://developers.google.com/web/tools/lighthouse/audits/aspect-ratio).',
+  /** Warning that the size information for an image was nonsensical. `url` will be replaced with the url of that image. */
+  warningCompute: 'Invalid image sizing information {url}',
+  /**  Label for a column in a data table; entries in the column will be the numeric aspect ratio of an image as displayed in a web page. */
+  columnDisplayed: 'Aspect Ratio (Displayed)',
+  /**  Label for a column in a data table; entries in the column will be the numeric aspect ratio of the raw (actual) image. */
+  columnActual: 'Aspect Ratio (Actual)',
+};
+
+const str_ = i18n.createMessageInstanceIdFn(__filename, UIStrings);
+
 const THRESHOLD_PX = 2;
 
 /** @typedef {Required<LH.Artifacts.ImageElement>} WellDefinedImage */
@@ -25,10 +44,9 @@ class ImageAspectRatio extends Audit {
   static get meta() {
     return {
       id: 'image-aspect-ratio',
-      title: 'Displays images with correct aspect ratio',
-      failureTitle: 'Displays images with incorrect aspect ratio',
-      description: 'Image display dimensions should match natural aspect ratio. ' +
-        '[Learn more](https://developers.google.com/web/tools/lighthouse/audits/aspect-ratio).',
+      title: str_(UIStrings.title),
+      failureTitle: str_(UIStrings.failureTitle),
+      description: str_(UIStrings.description),
       requiredArtifacts: ['ImageElements'],
     };
   }
@@ -47,7 +65,7 @@ class ImageAspectRatio extends Audit {
 
     if (!Number.isFinite(actualAspectRatio) ||
       !Number.isFinite(displayedAspectRatio)) {
-      return new Error(`Invalid image sizing information ${url}`);
+      return new Error(str_(UIStrings.warningCompute, {url}));
     }
 
     return {
@@ -99,9 +117,9 @@ class ImageAspectRatio extends Audit {
     /** @type {LH.Audit.Details.Table['headings']} */
     const headings = [
       {key: 'url', itemType: 'thumbnail', text: ''},
-      {key: 'url', itemType: 'url', text: 'URL'},
-      {key: 'displayedAspectRatio', itemType: 'text', text: 'Aspect Ratio (Displayed)'},
-      {key: 'actualAspectRatio', itemType: 'text', text: 'Aspect Ratio (Actual)'},
+      {key: 'url', itemType: 'url', text: str_(i18n.UIStrings.columnURL)},
+      {key: 'displayedAspectRatio', itemType: 'text', text: str_(UIStrings.columnDisplayed)},
+      {key: 'actualAspectRatio', itemType: 'text', text: str_(UIStrings.columnActual)},
     ];
 
     return {
@@ -113,3 +131,4 @@ class ImageAspectRatio extends Audit {
 }
 
 module.exports = ImageAspectRatio;
+module.exports.UIStrings = UIStrings;
diff --git a/lighthouse-core/audits/is-on-https.js b/lighthouse-core/audits/is-on-https.js
index 98af7bbf5e9b..9b1d245fdfff 100644
--- a/lighthouse-core/audits/is-on-https.js
+++ b/lighthouse-core/audits/is-on-https.js
@@ -7,8 +7,30 @@
 
 const Audit = require('./audit.js');
 const URL = require('../lib/url-shim.js');
-const Util = require('../report/html/renderer/util.js');
 const NetworkRecords = require('../computed/network-records.js');
+const i18n = require('../lib/i18n/i18n.js');
+
+const UIStrings = {
+  /** Title of a Lighthouse audit that provides detail on the useage of HTTPS on a page. This descriptive title is shown to users when all requests on a page are fufilled using HTTPS. */
+  title: 'Uses HTTPS',
+  /** Title of a Lighthouse audit that provides detail on the useage of HTTPS on a page. This descriptive title is shown to users when some, or all, requests on the page use HTTP instead of HTTPS. */
+  failureTitle: 'Does not use HTTPS',
+  /** Description of a Lighthouse audit that tells the user *why* HTTPS use is important. This is displayed after a user expands the section to see more. No character length limits. 'Learn More' becomes link text to additional documentation. */
+  description: 'All sites should be protected with HTTPS, even ones that don\'t handle ' +
+      'sensitive data. HTTPS prevents intruders from tampering with or passively listening ' +
+      'in on the communications between your app and your users, and is a prerequisite for ' +
+      'HTTP/2 and many new web platform APIs. ' +
+      '[Learn more](https://developers.google.com/web/tools/lighthouse/audits/https).',
+  /** [ICU Syntax] Label identifying the number of insecure network requests found by an audit of a web page. */
+  displayValue: `{itemCount, plural,
+    =1 {1 insecure request found}
+    other {# insecure requests found}
+    }`,
+  /** Label for a column in a data table; entries in the column will be the URLs of insecure (non-HTTPS) network requests. */
+  columnInsecureURL: 'Insecure URL',
+};
+
+const str_ = i18n.createMessageInstanceIdFn(__filename, UIStrings);
 
 const SECURE_SCHEMES = ['data', 'https', 'wss', 'blob', 'chrome', 'chrome-extension', 'about'];
 const SECURE_DOMAINS = ['localhost', '127.0.0.1'];
@@ -20,13 +42,9 @@ class HTTPS extends Audit {
   static get meta() {
     return {
       id: 'is-on-https',
-      title: 'Uses HTTPS',
-      failureTitle: 'Does not use HTTPS',
-      description: 'All sites should be protected with HTTPS, even ones that don\'t handle ' +
-          'sensitive data. HTTPS prevents intruders from tampering with or passively listening ' +
-          'in on the communications between your app and your users, and is a prerequisite for ' +
-          'HTTP/2 and many new web platform APIs. ' +
-          '[Learn more](https://developers.google.com/web/tools/lighthouse/audits/https).',
+      title: str_(UIStrings.title),
+      failureTitle: str_(UIStrings.failureTitle),
+      description: str_(UIStrings.description),
       requiredArtifacts: ['devtoolsLogs'],
     };
   }
@@ -53,18 +71,16 @@ class HTTPS extends Audit {
           .filter(record => !HTTPS.isSecureRecord(record))
           .map(record => URL.elideDataURI(record.url));
 
+      const items = Array.from(new Set(insecureURLs)).map(url => ({url}));
+
       let displayValue = '';
-      if (insecureURLs.length > 1) {
-        displayValue = `${Util.formatNumber(insecureURLs.length)} insecure requests found`;
-      } else if (insecureURLs.length === 1) {
-        displayValue = `${insecureURLs.length} insecure request found`;
+      if (items.length > 0) {
+        displayValue = str_(UIStrings.displayValue, {itemCount: items.length});
       }
 
-      const items = Array.from(new Set(insecureURLs)).map(url => ({url}));
-
       /** @type {LH.Audit.Details.Table['headings']} */
       const headings = [
-        {key: 'url', itemType: 'url', text: 'Insecure URL'},
+        {key: 'url', itemType: 'url', text: str_(UIStrings.columnInsecureURL)},
       ];
 
       return {
@@ -80,3 +96,4 @@ class HTTPS extends Audit {
 }
 
 module.exports = HTTPS;
+module.exports.UIStrings = UIStrings;
diff --git a/lighthouse-core/config/default-config.js b/lighthouse-core/config/default-config.js
index d569564e8cda..93ab96ddf671 100644
--- a/lighthouse-core/config/default-config.js
+++ b/lighthouse-core/config/default-config.js
@@ -94,6 +94,8 @@ const UIStrings = {
   seoCrawlingGroupTitle: 'Crawling and Indexing',
   /* Description of the navigation section within the Search Engine Optimization (SEO) category. Within this section are audits with descriptive titles that highlight ways to make a website accessible to search engine crawlers. */
   seoCrawlingGroupDescription: 'To appear in search results, crawlers need access to your app.',
+  /** Title of the Best Practices category of audits. This is displayed at the top of a list of audits focused on topics related to following web development best practices and accepted guidelines. Also used as a label of a score gauge; try to limit to 20 characters. */
+  bestPracticesCategoryTitle: 'Best Practices',
   /** Title of the Fast and Reliable section of the web app category. Within this section are audits that check if the web site loaded quickly and can reliably load even if the internet connection is very slow or goes offline. */
   pwaFastReliableGroupTitle: 'Fast and reliable',
   /** Title of the Installable section of the web app category. Within this section are audits that check if Chrome supports installing the web site as an app on their device. */
@@ -463,7 +465,7 @@ const defaultConfig = {
       ],
     },
     'best-practices': {
-      title: 'Best Practices',
+      title: str_(UIStrings.bestPracticesCategoryTitle),
       auditRefs: [
         {id: 'appcache-manifest', weight: 1},
         {id: 'is-on-https', weight: 1},
diff --git a/lighthouse-core/lib/i18n/en-US.json b/lighthouse-core/lib/i18n/en-US.json
index a3adf30df64a..95ed40853a4d 100644
--- a/lighthouse-core/lib/i18n/en-US.json
+++ b/lighthouse-core/lib/i18n/en-US.json
@@ -599,6 +599,74 @@
     "message": "Minimize Critical Requests Depth",
     "description": "Imperative title of a Lighthouse audit that tells the user to reduce the depth of critical network requests to enhance initial load of a page. Critical request chains are series of dependent network requests that are important for page rendering. For example, here's a 4-request-deep chain: The biglogo.jpg image is required, but is requested via the styles.css style code, which is requested by the initialize.js javascript, which is requested by the page's HTML. This is displayed in a list of audit titles that Lighthouse generates."
   },
+  "lighthouse-core/audits/deprecations.js | columnDeprecate": {
+    "message": "Deprecation / Warning",
+    "description": "Header of the table column which displays the warning message describing use of a deprecated API by code running in the web page."
+  },
+  "lighthouse-core/audits/deprecations.js | columnLine": {
+    "message": "Line",
+    "description": "Table column header for line of code (eg. 432) that is using a deprecated API."
+  },
+  "lighthouse-core/audits/deprecations.js | description": {
+    "message": "Deprecated APIs will eventually be removed from the browser. [Learn more](https://www.chromestatus.com/features#deprecated).",
+    "description": "Description of a Lighthouse audit that tells the user why they should not use deprecated APIs on their page. This is displayed after a user expands the section to see more. No character length limits. 'Learn More' becomes link text to additional documentation."
+  },
+  "lighthouse-core/audits/deprecations.js | displayValue": {
+    "message": "{itemCount, plural,\n    =1 {1 warning found}\n    other {# warnings found}\n    }",
+    "description": "[ICU Syntax] Label for the audit identifying the number of warnings generated by using deprecated APIs."
+  },
+  "lighthouse-core/audits/deprecations.js | failureTitle": {
+    "message": "Uses deprecated APIs",
+    "description": "Title of a Lighthouse audit that provides detail on the use of deprecated APIs. This descriptive title is shown to users when the page uses deprecated APIs."
+  },
+  "lighthouse-core/audits/deprecations.js | title": {
+    "message": "Avoids deprecated APIs",
+    "description": "Title of a Lighthouse audit that provides detail on the use of deprecated APIs. This descriptive title is shown to users when the page does not use deprecated APIs."
+  },
+  "lighthouse-core/audits/dobetterweb/appcache-manifest.js | description": {
+    "message": "Application Cache is deprecated. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/appcache).",
+    "description": "Description of a Lighthouse audit that tells the user why they should not use the Application Cache API. This is displayed after a user expands the section to see more. No character length limits. 'Learn More' becomes link text to additional documentation."
+  },
+  "lighthouse-core/audits/dobetterweb/appcache-manifest.js | displayValue": {
+    "message": "Found \"{AppCacheManifest}\"",
+    "description": "Label for the audit identifying uses of the Application Cache."
+  },
+  "lighthouse-core/audits/dobetterweb/appcache-manifest.js | failureTitle": {
+    "message": "Uses Application Cache",
+    "description": "Title of a Lighthouse audit that provides detail on the use of the Application Cache API. This descriptive title is shown to users when they do use the Application Cache API, which is considered bad practice."
+  },
+  "lighthouse-core/audits/dobetterweb/appcache-manifest.js | title": {
+    "message": "Avoids Application Cache",
+    "description": "Title of a Lighthouse audit that provides detail on the use of the Application Cache API. This descriptive title is shown to users when they do not use the Application Cache API."
+  },
+  "lighthouse-core/audits/dobetterweb/doctype.js | description": {
+    "message": "Specifying a doctype prevents the browser from switching to quirks-mode. Read more on the [MDN Web Docs page](https://developer.mozilla.org/en-US/docs/Glossary/Doctype)",
+    "description": "Description of a Lighthouse audit that tells the user why they should define an HTML doctype. This is displayed after a user expands the section to see more. No character length limits. 'Learn More' becomes link text to additional documentation."
+  },
+  "lighthouse-core/audits/dobetterweb/doctype.js | explanationBadDoctype": {
+    "message": "Doctype name must be the lowercase string `html`",
+    "description": "Explanatory message stating that the doctype is set, but is not \"html\" and is therefore invalid."
+  },
+  "lighthouse-core/audits/dobetterweb/doctype.js | explanationNoDoctype": {
+    "message": "Document must contain a doctype",
+    "description": "Explanatory message stating that the document has no doctype."
+  },
+  "lighthouse-core/audits/dobetterweb/doctype.js | explanationPublicId": {
+    "message": "Expected publicId to be an empty string",
+    "description": "Explanatory message stating that the publicId field is not empty."
+  },
+  "lighthouse-core/audits/dobetterweb/doctype.js | explanationSystemId": {
+    "message": "Expected systemId to be an empty string",
+    "description": "Explanatory message stating that the systemId field is not empty."
+  },
+  "lighthouse-core/audits/dobetterweb/doctype.js | failureTitle": {
+    "message": "Page lacks the HTML doctype, thus triggering quirks-mode",
+    "description": "Title of a Lighthouse audit that provides detail on the doctype of a page. This descriptive title is shown to users when the page's doctype is not set to HTML."
+  },
+  "lighthouse-core/audits/dobetterweb/doctype.js | title": {
+    "message": "Page has the HTML doctype",
+    "description": "Title of a Lighthouse audit that provides detail on the doctype of a page. This descriptive title is shown to users when the pages's doctype is set to HTML."
+  },
   "lighthouse-core/audits/dobetterweb/dom-size.js | columnElement": {
     "message": "Element",
     "description": "Table column header for the DOM element. Each DOM element is described with its HTML representation."
@@ -639,6 +707,186 @@
     "message": "Avoids an excessive DOM size",
     "description": "Title of a diagnostic audit that provides detail on the size of the web page's DOM. The size of a DOM is characterized by the total number of DOM elements and greatest DOM depth. This descriptive title is shown to users when the amount is acceptable and no user action is required."
   },
+  "lighthouse-core/audits/dobetterweb/external-anchors-use-rel-noopener.js | columnRel": {
+    "message": "Rel",
+    "description": "Label for a column in a data table; entries will be the values of the html \"rel\" attribute from link in a page."
+  },
+  "lighthouse-core/audits/dobetterweb/external-anchors-use-rel-noopener.js | columnTarget": {
+    "message": "Target",
+    "description": "Label for a column in a data table; entries will be the target attribute of a link. Each entry is either an empty string or a string like `_blank`."
+  },
+  "lighthouse-core/audits/dobetterweb/external-anchors-use-rel-noopener.js | description": {
+    "message": "Add `rel=\"noopener\"` or `rel=\"noreferrer\"` to any external links to improve performance and prevent security vulnerabilities. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/noopener).",
+    "description": "Description of a Lighthouse audit that tells the user why and how they should secure cross-origin links. This is displayed after a user expands the section to see more. No character length limits. 'Learn More' becomes link text to additional documentation."
+  },
+  "lighthouse-core/audits/dobetterweb/external-anchors-use-rel-noopener.js | failureTitle": {
+    "message": "Links to cross-origin destinations are unsafe",
+    "description": "Title of a Lighthouse audit that provides detail on the cross-origin links that the web page contains, and whether the links can be considered safe. This descriptive title is shown to users when not all links can be considered safe."
+  },
+  "lighthouse-core/audits/dobetterweb/external-anchors-use-rel-noopener.js | title": {
+    "message": "Links to cross-origin destinations are safe",
+    "description": "Title of a Lighthouse audit that provides detail on the cross-origin links that the web page contains, and whether the links can be considered safe. This descriptive title is shown to users when all links are safe."
+  },
+  "lighthouse-core/audits/dobetterweb/external-anchors-use-rel-noopener.js | warning": {
+    "message": "Unable to determine the destination for anchor ({anchorHTML}). If not used as a hyperlink, consider removing target=_blank.",
+    "description": "Warning that some links' destinations cannot be determined and therefore the audit cannot evaluate the link's safety."
+  },
+  "lighthouse-core/audits/dobetterweb/geolocation-on-start.js | description": {
+    "message": "Users are mistrustful of or confused by sites that request their location without context. Consider tying the request to a user action instead. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/geolocation-on-load).",
+    "description": "Description of a Lighthouse audit that tells the user why they should not ask for geolocation permissions on load. This is displayed after a user expands the section to see more. No character length limits. 'Learn More' becomes link text to additional documentation."
+  },
+  "lighthouse-core/audits/dobetterweb/geolocation-on-start.js | failureTitle": {
+    "message": "Requests the geolocation permission on page load",
+    "description": "Title of a Lighthouse audit that provides detail on geolocation permissions requests. This descriptive title is shown to users when the page does ask for geolocation permissions on load."
+  },
+  "lighthouse-core/audits/dobetterweb/geolocation-on-start.js | title": {
+    "message": "Avoids requesting the geolocation permission on page load",
+    "description": "Title of a Lighthouse audit that provides detail on geolocation permission requests while the page is loading. This descriptive title is shown to users when the page does not ask for geolocation permissions on load."
+  },
+  "lighthouse-core/audits/dobetterweb/js-libraries.js | columnName": {
+    "message": "Name",
+    "description": "Label for a column in a data table; entries will be the names of the detected Javascript libraries."
+  },
+  "lighthouse-core/audits/dobetterweb/js-libraries.js | columnVersion": {
+    "message": "Version",
+    "description": "Label for a column in a data table; entries will be the version numbers of the detected Javascript libraries."
+  },
+  "lighthouse-core/audits/dobetterweb/js-libraries.js | description": {
+    "message": "All front-end JavaScript libraries detected on the page.",
+    "description": "Description of a Lighthouse audit that tells the user what this audit is detecting. This is displayed after a user expands the section to see more. No character length limits."
+  },
+  "lighthouse-core/audits/dobetterweb/js-libraries.js | title": {
+    "message": "Detected JavaScript libraries",
+    "description": "Title of a Lighthouse audit that provides detail on the Javascript libraries that are used on the page."
+  },
+  "lighthouse-core/audits/dobetterweb/no-document-write.js | description": {
+    "message": "For users on slow connections, external scripts dynamically injected via `document.write()` can delay page load by tens of seconds. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/document-write).",
+    "description": "Description of a Lighthouse audit that tells the user why they should avoid `document.write`. This is displayed after a user expands the section to see more. No character length limits. 'Learn More' becomes link text to additional documentation."
+  },
+  "lighthouse-core/audits/dobetterweb/no-document-write.js | failureTitle": {
+    "message": "Uses `document.write()`",
+    "description": "Title of a Lighthouse audit that provides detail on the page's use of the `document.write` API. This descriptive title is shown to users when the page does use `document.write`."
+  },
+  "lighthouse-core/audits/dobetterweb/no-document-write.js | title": {
+    "message": "Avoids `document.write()`",
+    "description": "Title of a Lighthouse audit that provides detail on the page's use of the `document.write` API. This descriptive title is shown to users when the page does not use `document.write`."
+  },
+  "lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js | columnSeverity": {
+    "message": "Highest Severity",
+    "description": "Label for a column in a data table; entries will be the severity of the vulnerabilities found within a Javascript library."
+  },
+  "lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js | columnVersion": {
+    "message": "Library Version",
+    "description": "Label for a column in a data table; entries will be the version numbers of the Javascript libraries found."
+  },
+  "lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js | columnVuln": {
+    "message": "Vulnerability Count",
+    "description": "Label for a column in a data table; entries will be the counts of JavaScript-library vulnerabilities found."
+  },
+  "lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js | description": {
+    "message": "Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/vulnerabilities).",
+    "description": "Description of a Lighthouse audit that tells the user why they should be concerned about the third party Javascript libraries that they use. This is displayed after a user expands the section to see more. No character length limits. 'Learn More' becomes link text to additional documentation."
+  },
+  "lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js | displayValue": {
+    "message": "{itemCount, plural,\n    =1 {1 vulnerability detected}\n    other {# vulnerabilities detected}\n    }",
+    "description": "[ICU Syntax] Label for the audit identifying the number of vulnerable Javascript libraries found."
+  },
+  "lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js | failureTitle": {
+    "message": "Includes front-end JavaScript libraries with known security vulnerabilities",
+    "description": "Title of a Lighthouse audit that provides detail on Javascript libraries the page uses. This descriptive title is shown to users when some detected Javascript libraries have known security vulnerabilities."
+  },
+  "lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js | rowSeverityHigh": {
+    "message": "High",
+    "description": "Table row value for the severity of a high impact, or dangerous Javascript vulnerability.  Part of a ranking scale in the form: low, medium, high."
+  },
+  "lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js | rowSeverityLow": {
+    "message": "Low",
+    "description": "Table row value for the severity of a small, or low impact Javascript vulnerability.  Part of a ranking scale in the form: low, medium, high."
+  },
+  "lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js | rowSeverityMedium": {
+    "message": "Medium",
+    "description": "Table row value for the severity of a Javascript vulnerability.  Part of a ranking scale in the form: low, medium, high."
+  },
+  "lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js | title": {
+    "message": "Avoids front-end JavaScript libraries with known security vulnerabilities",
+    "description": "Title of a Lighthouse audit that provides detail on Javascript libraries the page uses. This descriptive title is shown to users when all Javascript libraries are free of known security vulnerabilities."
+  },
+  "lighthouse-core/audits/dobetterweb/notification-on-start.js | description": {
+    "message": "Users are mistrustful of or confused by sites that request to send notifications without context. Consider tying the request to user gestures instead. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/notifications-on-load).",
+    "description": "Description of a Lighthouse audit that tells the user why they should not ask for notification permission on load. This is displayed after a user expands the section to see more. No character length limits. 'Learn More' becomes link text to additional documentation."
+  },
+  "lighthouse-core/audits/dobetterweb/notification-on-start.js | failureTitle": {
+    "message": "Requests the notification permission on page load",
+    "description": "Title of a Lighthouse audit that provides detail on the page's notification permission requests. This descriptive title is shown to users when the page does ask for notification permission on load."
+  },
+  "lighthouse-core/audits/dobetterweb/notification-on-start.js | title": {
+    "message": "Avoids requesting the notification permission on page load",
+    "description": "Title of a Lighthouse audit that provides detail on the page's notification permission requests. This descriptive title is shown to users when the page does not ask for notification permission on load."
+  },
+  "lighthouse-core/audits/dobetterweb/password-inputs-can-be-pasted-into.js | columnFailingElem": {
+    "message": "Failing Elements",
+    "description": "Table column header for the HTML elements that do not allow pasting of content."
+  },
+  "lighthouse-core/audits/dobetterweb/password-inputs-can-be-pasted-into.js | description": {
+    "message": "Preventing password pasting undermines good security policy. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/password-pasting).",
+    "description": "Description of a Lighthouse audit that tells the user why they should allow pasting of content into password fields. This is displayed after a user expands the section to see more. No character length limits. 'Learn More' becomes link text to additional documentation."
+  },
+  "lighthouse-core/audits/dobetterweb/password-inputs-can-be-pasted-into.js | failureTitle": {
+    "message": "Prevents users to paste into password fields",
+    "description": "Title of a Lighthouse audit that provides detail on the ability to paste into password fields. This descriptive title is shown to users when the page does not allow pasting of content into password fields."
+  },
+  "lighthouse-core/audits/dobetterweb/password-inputs-can-be-pasted-into.js | title": {
+    "message": "Allows users to paste into password fields",
+    "description": "Title of a Lighthouse audit that provides detail on the ability to paste into password fields. This descriptive title is shown to users when the page allows pasting of content into password fields."
+  },
+  "lighthouse-core/audits/dobetterweb/uses-http2.js | columnProtocol": {
+    "message": "Protocol",
+    "description": "Label for a column in a data table; entries in the column will be the HTTP Protocol used to make a network request."
+  },
+  "lighthouse-core/audits/dobetterweb/uses-http2.js | description": {
+    "message": "HTTP/2 offers many benefits over HTTP/1.1, including binary headers, multiplexing, and server push. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/http2).",
+    "description": "Description of a Lighthouse audit that tells the user why they should use HTTP/2. This is displayed after a user expands the section to see more. No character length limits. 'Learn More' becomes link text to additional documentation."
+  },
+  "lighthouse-core/audits/dobetterweb/uses-http2.js | displayValue": {
+    "message": "{itemCount, plural,\n    =1 {1 request not served via HTTP/2}\n    other {# requests not served via HTTP/2}\n    }",
+    "description": "[ICU Syntax] Label identifying the number of network requests that were not served with HTTP/2."
+  },
+  "lighthouse-core/audits/dobetterweb/uses-http2.js | failureTitle": {
+    "message": "Does not use HTTP/2 for all of its resources",
+    "description": "Title of a Lighthouse audit that provides detail on whether the webpage uses HTTP/2 for resources it requests over the network. This descriptive title is shown to users when the page does not use HTTP/2 for its requests."
+  },
+  "lighthouse-core/audits/dobetterweb/uses-http2.js | title": {
+    "message": "Uses HTTP/2 for its own resources",
+    "description": "Title of a Lighthouse audit that provides detail on whether the webpage uses HTTP/2 for resources it requests over the network. This descriptive title is shown to users when the page uses HTTP/2 for its requests."
+  },
+  "lighthouse-core/audits/dobetterweb/uses-passive-event-listeners.js | description": {
+    "message": "Consider marking your touch and wheel event listeners as `passive` to improve your page's scroll performance. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/passive-event-listeners).",
+    "description": "Description of a Lighthouse audit that tells the user why they should use passive event listeners on the page. This is displayed after a user expands the section to see more. No character length limits. 'Learn More' becomes link text to additional documentation."
+  },
+  "lighthouse-core/audits/dobetterweb/uses-passive-event-listeners.js | failureTitle": {
+    "message": "Does not use passive listeners to improve scrolling performance",
+    "description": "Title of a Lighthouse audit that provides detail on the page's use of passive event listeners used to improve the scrolling performance of the page. This descriptive title is shown to users when the page does not use passive listeners."
+  },
+  "lighthouse-core/audits/dobetterweb/uses-passive-event-listeners.js | title": {
+    "message": "Uses passive listeners to improve scrolling performance",
+    "description": "Title of a Lighthouse audit that provides detail on the page's use of passive event listeners used to improve the scrolling performance of the page. This descriptive title is shown to users when the page does use passive listeners."
+  },
+  "lighthouse-core/audits/errors-in-console.js | columnDesc": {
+    "message": "Description",
+    "description": "Label for a column in a data table; entries in the column will be the descriptions of logged browser errors."
+  },
+  "lighthouse-core/audits/errors-in-console.js | description": {
+    "message": "Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns.",
+    "description": "Description of a Lighthouse audit that tells the user why errors being logged to the devtools console are a cause for concern and so should be fixed. This is displayed after a user expands the section to see more. No character length limits."
+  },
+  "lighthouse-core/audits/errors-in-console.js | failureTitle": {
+    "message": "Browser errors were logged to the console",
+    "description": "Title of a Lighthouse audit that provides detail on browser errors. This descriptive title is shown to users when browser errors occurred and were logged into the devtools console."
+  },
+  "lighthouse-core/audits/errors-in-console.js | title": {
+    "message": "No browser errors logged to the console",
+    "description": "Title of a Lighthouse audit that provides detail on browser errors. This descriptive title is shown to users when no browser errors were logged into the devtools console."
+  },
   "lighthouse-core/audits/font-display.js | description": {
     "message": "Leverage the font-display CSS feature to ensure text is user-visible while webfonts are loading. [Learn more](https://developers.google.com/web/updates/2016/02/font-display).",
     "description": "Description of a Lighthouse audit that tells the user *why* they should use the font-display CSS feature. This is displayed after a user expands the section to see more. No character length limits. 'Learn More' becomes link text to additional documentation."
@@ -655,6 +903,50 @@
     "message": "Lighthouse was unable to automatically check the font-display value for the following URL: {fontURL}.",
     "description": "A warning message that is shown when Lighthouse couldn't automatically check some of the page's fonts and that the user will need to manually check it."
   },
+  "lighthouse-core/audits/image-aspect-ratio.js | columnActual": {
+    "message": "Aspect Ratio (Actual)",
+    "description": "Label for a column in a data table; entries in the column will be the numeric aspect ratio of the raw (actual) image."
+  },
+  "lighthouse-core/audits/image-aspect-ratio.js | columnDisplayed": {
+    "message": "Aspect Ratio (Displayed)",
+    "description": "Label for a column in a data table; entries in the column will be the numeric aspect ratio of an image as displayed in a web page."
+  },
+  "lighthouse-core/audits/image-aspect-ratio.js | description": {
+    "message": "Image display dimensions should match natural aspect ratio. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/aspect-ratio).",
+    "description": "Description of a Lighthouse audit that tells the user why they should maintain the correct aspect ratios for all images. This is displayed after a user expands the section to see more. No character length limits. 'Learn More' becomes link text to additional documentation."
+  },
+  "lighthouse-core/audits/image-aspect-ratio.js | failureTitle": {
+    "message": "Displays images with incorrect aspect ratio",
+    "description": "Title of a Lighthouse audit that provides detail on the aspect ratios of all images on the page. This descriptive title is shown to users when not all images use correct aspect ratios."
+  },
+  "lighthouse-core/audits/image-aspect-ratio.js | title": {
+    "message": "Displays images with correct aspect ratio",
+    "description": "Title of a Lighthouse audit that provides detail on the aspect ratios of all images on the page. This descriptive title is shown to users when all images use correct aspect ratios."
+  },
+  "lighthouse-core/audits/image-aspect-ratio.js | warningCompute": {
+    "message": "Invalid image sizing information {url}",
+    "description": "Warning that the size information for an image was nonsensical. `url` will be replaced with the url of that image."
+  },
+  "lighthouse-core/audits/is-on-https.js | columnInsecureURL": {
+    "message": "Insecure URL",
+    "description": "Label for a column in a data table; entries in the column will be the URLs of insecure (non-HTTPS) network requests."
+  },
+  "lighthouse-core/audits/is-on-https.js | description": {
+    "message": "All sites should be protected with HTTPS, even ones that don't handle sensitive data. HTTPS prevents intruders from tampering with or passively listening in on the communications between your app and your users, and is a prerequisite for HTTP/2 and many new web platform APIs. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/https).",
+    "description": "Description of a Lighthouse audit that tells the user *why* HTTPS use is important. This is displayed after a user expands the section to see more. No character length limits. 'Learn More' becomes link text to additional documentation."
+  },
+  "lighthouse-core/audits/is-on-https.js | displayValue": {
+    "message": "{itemCount, plural,\n    =1 {1 insecure request found}\n    other {# insecure requests found}\n    }",
+    "description": "[ICU Syntax] Label identifying the number of insecure network requests found by an audit of a web page."
+  },
+  "lighthouse-core/audits/is-on-https.js | failureTitle": {
+    "message": "Does not use HTTPS",
+    "description": "Title of a Lighthouse audit that provides detail on the useage of HTTPS on a page. This descriptive title is shown to users when some, or all, requests on the page use HTTP instead of HTTPS."
+  },
+  "lighthouse-core/audits/is-on-https.js | title": {
+    "message": "Uses HTTPS",
+    "description": "Title of a Lighthouse audit that provides detail on the useage of HTTPS on a page. This descriptive title is shown to users when all requests on a page are fufilled using HTTPS."
+  },
   "lighthouse-core/audits/load-fast-enough-for-pwa.js | description": {
     "message": "A fast page load over a cellular network ensures a good mobile user experience. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/fast-3g).",
     "description": "Description of a Lighthouse audit that tells the user *why* they need to load fast enough on mobile networks. This is displayed after a user expands the section to see more. No character length limits. 'Learn More' becomes link text to additional documentation."
@@ -1171,6 +1463,10 @@
     "message": "Tables and lists",
     "description": "Title of the navigation section within the Accessibility category. Within this section are audits with descriptive titles that highlight opportunities to improve the experience of reading tabular or list data using assistive technology."
   },
+  "lighthouse-core/config/default-config.js | bestPracticesCategoryTitle": {
+    "message": "Best Practices",
+    "description": "Title of the Best Practices category of audits. This is displayed at the top of a list of audits focused on topics related to following web development best practices and accepted guidelines. Also used as a label of a score gauge; try to limit to 20 characters."
+  },
   "lighthouse-core/config/default-config.js | budgetsGroupDescription": {
     "message": "Performance budgets set standards for the performance of your site.",
     "description": "Description of the Budgets section of the Performance category. Within this section the budget results are displayed."
@@ -1269,7 +1565,11 @@
   },
   "lighthouse-core/lib/i18n/i18n.js | columnCacheTTL": {
     "message": "Cache TTL",
-    "description": "Label for the TTL column in data tables, entries will be the time to live value of the cache header on a web resource"
+    "description": "Label for a column in a data table; entries will be the time to live value of the cache header on a web resource."
+  },
+  "lighthouse-core/lib/i18n/i18n.js | columnLocation": {
+    "message": "Location",
+    "description": "Label for a column in a data table; entries will be the location of a specific line of code in a file, in the format \"line: 102\"."
   },
   "lighthouse-core/lib/i18n/i18n.js | columnRequests": {
     "message": "Requests",
@@ -1281,11 +1581,11 @@
   },
   "lighthouse-core/lib/i18n/i18n.js | columnSize": {
     "message": "Size",
-    "description": "Label for the size column in data tables, entries will be the size of a web resource in kilobytes"
+    "description": "Label for a column in a data table; entries will be the size of a web resource in kilobytes."
   },
   "lighthouse-core/lib/i18n/i18n.js | columnTimeSpent": {
     "message": "Time Spent",
-    "description": "Label for the time spent column in data tables, entries will be the number of milliseconds spent during a particular activity"
+    "description": "Label for a column in a data table; entries will be the number of milliseconds spent during a particular activity."
   },
   "lighthouse-core/lib/i18n/i18n.js | columnTransferSize": {
     "message": "Transfer Size",
@@ -1293,15 +1593,15 @@
   },
   "lighthouse-core/lib/i18n/i18n.js | columnURL": {
     "message": "URL",
-    "description": "Label for the URL column in data tables, entries will be the URL of a web resource"
+    "description": "Label for a column in a data table; entries will be the URL of a web resource"
   },
   "lighthouse-core/lib/i18n/i18n.js | columnWastedBytes": {
     "message": "Potential Savings",
-    "description": "Label for the wasted bytes column in data tables, entries will be the number of kilobytes the user could reduce their page by if they implemented the suggestions"
+    "description": "Label for a column in a data table; entries will be the number of kilobytes the user could reduce their page by if they implemented the suggestions."
   },
   "lighthouse-core/lib/i18n/i18n.js | columnWastedMs": {
     "message": "Potential Savings",
-    "description": "Label for the wasted bytes column in data tables, entries will be the number of milliseconds the user could reduce page load by if they implemented the suggestions"
+    "description": "Label for a column in a data table; entries will be the number of milliseconds the user could reduce page load by if they implemented the suggestions."
   },
   "lighthouse-core/lib/i18n/i18n.js | displayValueByteSavings": {
     "message": "Potential savings of {wastedBytes, number, bytes} KB",
diff --git a/lighthouse-core/lib/i18n/i18n.js b/lighthouse-core/lib/i18n/i18n.js
index 3433bf79b2c7..36476f29b274 100644
--- a/lighthouse-core/lib/i18n/i18n.js
+++ b/lighthouse-core/lib/i18n/i18n.js
@@ -44,23 +44,25 @@ const UIStrings = {
   displayValueByteSavings: 'Potential savings of {wastedBytes, number, bytes}\xa0KB',
   /** Label shown per-audit to show how many milliseconds faster the page load could be if the user implemented the suggestions. The `{wastedMs}` placeholder will be replaced with the time duration, shown in milliseconds (e.g. 140 ms) */
   displayValueMsSavings: 'Potential savings of {wastedMs, number, milliseconds}\xa0ms',
-  /** Label for the URL column in data tables, entries will be the URL of a web resource */
+  /** Label for a column in a data table; entries will be the URL of a web resource */
   columnURL: 'URL',
-  /** Label for the size column in data tables, entries will be the size of a web resource in kilobytes */
+  /** Label for a column in a data table; entries will be the size of a web resource in kilobytes. */
   columnSize: 'Size',
-  /** Label for the TTL column in data tables, entries will be the time to live value of the cache header on a web resource */
+  /** Label for a column in a data table; entries will be the time to live value of the cache header on a web resource. */
   columnCacheTTL: 'Cache TTL',
-  /** Label for the wasted bytes column in data tables, entries will be the number of kilobytes the user could reduce their page by if they implemented the suggestions */
+  /** Label for a column in a data table; entries will be the number of kilobytes the user could reduce their page by if they implemented the suggestions. */
   columnWastedBytes: 'Potential Savings',
-  /** Label for the wasted bytes column in data tables, entries will be the number of milliseconds the user could reduce page load by if they implemented the suggestions */
+  /** Label for a column in a data table; entries will be the number of milliseconds the user could reduce page load by if they implemented the suggestions. */
   columnWastedMs: 'Potential Savings',
-  /** Label for the time spent column in data tables, entries will be the number of milliseconds spent during a particular activity */
+  /** Label for a column in a data table; entries will be the number of milliseconds spent during a particular activity. */
   columnTimeSpent: 'Time Spent',
+  /** Label for a column in a data table; entries will be the location of a specific line of code in a file, in the format "line: 102". */
+  columnLocation: 'Location',
   /** Label for a column in a data table; entries will be types of resources loaded over the network, e.g. "Scripts", "Third-Party", "Stylesheet". */
   columnResourceType: 'Resource Type',
-  /** Label for a column in a data table; entries will be the number of network requests done by a webpage.*/
+  /** Label for a column in a data table; entries will be the number of network requests done by a webpage. */
   columnRequests: 'Requests',
-  /** Label for a column in a data table; entries will be the number of kilobytes transferred to load a set of files.*/
+  /** Label for a column in a data table; entries will be the number of kilobytes transferred to load a set of files. */
   columnTransferSize: 'Transfer Size',
   /** Label for a row in a data table; entries will be the total number and byte size of all resources loaded by a web page. */
   totalResourceType: 'Total',
diff --git a/lighthouse-core/test/audits/deprecations-test.js b/lighthouse-core/test/audits/deprecations-test.js
index 2fbb0b8b523f..ab51ae8a1a62 100644
--- a/lighthouse-core/test/audits/deprecations-test.js
+++ b/lighthouse-core/test/audits/deprecations-test.js
@@ -31,7 +31,7 @@ describe('Console deprecations audit', () => {
       ],
     });
     assert.equal(auditResult.score, 0);
-    assert.equal(auditResult.displayValue, '1 warning found');
+    expect(auditResult.displayValue).toBeDisplayString('1 warning found');
     assert.equal(auditResult.details.items.length, 1);
     assert.equal(auditResult.details.items[0].url, '');
     assert.equal(auditResult.details.items[0].lineNumber, undefined);
@@ -67,7 +67,7 @@ describe('Console deprecations audit', () => {
       ],
     });
     assert.equal(auditResult.score, 0);
-    assert.equal(auditResult.displayValue, '2 warnings found');
+    expect(auditResult.displayValue).toBeDisplayString('2 warnings found');
     assert.equal(auditResult.details.items.length, 2);
     assert.equal(auditResult.details.items[0].url, URL);
     assert.equal(auditResult.details.items[0].lineNumber, 123);
diff --git a/lighthouse-core/test/audits/dobetterweb/doctype-test.js b/lighthouse-core/test/audits/dobetterweb/doctype-test.js
index 1c3479617e20..71d386e7bcba 100644
--- a/lighthouse-core/test/audits/dobetterweb/doctype-test.js
+++ b/lighthouse-core/test/audits/dobetterweb/doctype-test.js
@@ -16,7 +16,7 @@ describe('DOBETTERWEB: doctype audit', () => {
       Doctype: null,
     });
     assert.equal(auditResult.score, 0);
-    assert.equal(auditResult.explanation, 'Document must contain a doctype');
+    expect(auditResult.explanation).toBeDisplayString('Document must contain a doctype');
   });
 
   it('fails when the value of the name attribute is a value other then lowercase "html"', () => {
@@ -28,7 +28,8 @@ describe('DOBETTERWEB: doctype audit', () => {
       },
     });
     assert.equal(auditResult.score, 0);
-    assert.equal(auditResult.explanation, 'Doctype name must be the lowercase string `html`');
+    expect(auditResult.explanation).toBeDisplayString(
+      'Doctype name must be the lowercase string `html`');
   });
 
   it('fails when the value of the name attribute is not the lowercase string "html"', () => {
@@ -40,7 +41,8 @@ describe('DOBETTERWEB: doctype audit', () => {
       },
     });
     assert.equal(auditResult.score, 0);
-    assert.equal(auditResult.explanation, 'Doctype name must be the lowercase string `html`');
+    expect(auditResult.explanation).toBeDisplayString(
+      'Doctype name must be the lowercase string `html`');
   });
 
   it('fails when the publicId attribute is not an empty string', () => {
@@ -52,7 +54,7 @@ describe('DOBETTERWEB: doctype audit', () => {
       },
     });
     assert.equal(auditResult.score, 0);
-    assert.equal(auditResult.explanation, 'Expected publicId to be an empty string');
+    expect(auditResult.explanation).toBeDisplayString('Expected publicId to be an empty string');
   });
 
   it('fails when the systemId attribute is not an empty string', () => {
@@ -64,7 +66,7 @@ describe('DOBETTERWEB: doctype audit', () => {
       },
     });
     assert.equal(auditResult.score, 0);
-    assert.equal(auditResult.explanation, 'Expected systemId to be an empty string');
+    expect(auditResult.explanation).toBeDisplayString('Expected systemId to be an empty string');
   });
 
   it('succeeds when document contains a doctype, and the name value is "html"', () => {
diff --git a/lighthouse-core/test/audits/dobetterweb/no-vulnerable-libraries-test.js b/lighthouse-core/test/audits/dobetterweb/no-vulnerable-libraries-test.js
index 41279193ca58..ef65ff78c428 100644
--- a/lighthouse-core/test/audits/dobetterweb/no-vulnerable-libraries-test.js
+++ b/lighthouse-core/test/audits/dobetterweb/no-vulnerable-libraries-test.js
@@ -37,7 +37,7 @@ describe('Avoids front-end JavaScript libraries with known vulnerabilities', ()
     assert.equal(auditResult.score, 0);
     assert.equal(auditResult.details.items.length, 1);
     assert.equal(auditResult.extendedInfo.jsLibs.length, 3);
-    assert.equal(auditResult.details.items[0].highestSeverity, 'High');
+    expect(auditResult.details.items[0].highestSeverity).toBeDisplayString('High');
     assert.equal(auditResult.details.items[0].detectedLib.type, 'link');
     assert.equal(auditResult.details.items[0].detectedLib.text, 'angular@1.1.4');
     assert.equal(auditResult.details.items[0].detectedLib.url, 'https://snyk.io/vuln/npm:angular?lh=1.1.4&utm_source=lighthouse&utm_medium=ref&utm_campaign=audit');
@@ -58,16 +58,11 @@ describe('Avoids front-end JavaScript libraries with known vulnerabilities', ()
       Stacks[0],
       mockSnykDb
     );
-    expect(vulns).toMatchInlineSnapshot(`
-Array [
-  Object {
-    "library": "Badlib@3.0.0",
-    "numericSeverity": 2,
-    "severity": "medium",
-    "url": "https://snyk.io/vuln/badlibvuln:12345",
-  },
-]
-`);
+
+    expect(vulns[0].severity).toBeDisplayString('Medium');
+    assert.equal(vulns[0].library, 'Badlib@3.0.0');
+    assert.equal(vulns[0].numericSeverity, 2);
+    assert.equal(vulns[0].url, 'https://snyk.io/vuln/badlibvuln:12345');
   });
 
   it('handles ill-specified versions', () => {
diff --git a/lighthouse-core/test/audits/dobetterweb/uses-http2-test.js b/lighthouse-core/test/audits/dobetterweb/uses-http2-test.js
index 3e4f51565d85..bc99293658d5 100644
--- a/lighthouse-core/test/audits/dobetterweb/uses-http2-test.js
+++ b/lighthouse-core/test/audits/dobetterweb/uses-http2-test.js
@@ -29,15 +29,15 @@ describe('Resources are fetched over http/2', () => {
     return UsesHTTP2Audit.audit(getArtifacts(networkRecords, URL), {computedCache: new Map()}).then(
       auditResult => {
         assert.equal(auditResult.score, 0);
-        assert.ok(auditResult.displayValue.match('3 requests not'));
+        expect(auditResult.displayValue).toBeDisplayString('3 requests not served via HTTP/2');
         assert.equal(auditResult.details.items.length, 3);
         assert.equal(
           auditResult.details.items[0].url,
           'https://webtide.com/wp-content/plugins/wp-pagenavi/pagenavi-css.css?ver=2.70'
         );
         const headers = auditResult.details.headings;
-        assert.equal(headers[0].text, 'URL', 'table headings are correct and in order');
-        assert.equal(headers[1].text, 'Protocol', 'table headings are correct and in order');
+        expect(headers[0].text).toBeDisplayString('URL');
+        expect(headers[1].text).toBeDisplayString('Protocol');
       }
     );
   });
@@ -46,7 +46,7 @@ describe('Resources are fetched over http/2', () => {
     const entryWithHTTP1 = networkRecords.slice(1, 2);
     return UsesHTTP2Audit.audit(getArtifacts(entryWithHTTP1, URL), {computedCache: new Map()}).then(
       auditResult => {
-        assert.ok(auditResult.displayValue.match('1 request not'));
+        expect(auditResult.displayValue).toBeDisplayString('1 request not served via HTTP/2');
       }
     );
   });
@@ -78,7 +78,7 @@ describe('Resources are fetched over http/2', () => {
       computedCache: new Map(),
     }).then(auditResult => {
       assert.equal(auditResult.score, 0);
-      assert.ok(auditResult.displayValue.match('1 request not'));
+      expect(auditResult.displayValue).toBeDisplayString('1 request not served via HTTP/2');
       // Protocol is http/1.0 which we don't mark as fetched fetchedViaServiceWorker on line 73.
       assert.equal(
         auditResult.details.items[0].url,
diff --git a/lighthouse-core/test/audits/is-on-https-test.js b/lighthouse-core/test/audits/is-on-https-test.js
index d53717d89749..7bdc837eb9ea 100644
--- a/lighthouse-core/test/audits/is-on-https-test.js
+++ b/lighthouse-core/test/audits/is-on-https-test.js
@@ -28,7 +28,7 @@ describe('Security: HTTPS audit', () => {
       {url: 'https://google.com/', parsedURL: {scheme: 'https', host: 'google.com'}},
     ]), {computedCache: new Map()}).then(result => {
       assert.strictEqual(result.score, 0);
-      assert.ok(result.displayValue.includes('requests found'));
+      expect(result.displayValue).toBeDisplayString('2 insecure requests found');
       assert.strictEqual(result.extendedInfo.value.length, 2);
     });
   });
@@ -40,7 +40,7 @@ describe('Security: HTTPS audit', () => {
       {url: 'https://google.com/', parsedURL: {scheme: 'https', host: 'google.com'}},
     ]), {computedCache: new Map()}).then(result => {
       assert.strictEqual(result.score, 0);
-      assert.ok(result.displayValue.includes('request found'));
+      expect(result.displayValue).toBeDisplayString('1 insecure request found');
       assert.deepEqual(result.extendedInfo.value[0], {url: 'http://insecure.com/image.jpeg'});
     });
   });
diff --git a/lighthouse-core/test/results/sample_v2.json b/lighthouse-core/test/results/sample_v2.json
index 3e22f468be45..ea1424095902 100644
--- a/lighthouse-core/test/results/sample_v2.json
+++ b/lighthouse-core/test/results/sample_v2.json
@@ -2637,7 +2637,7 @@
     "doctype": {
       "id": "doctype",
       "title": "Page has the HTML doctype",
-      "description": "Specifying a doctype prevents the browser from switching to quirks-mode.Read more on the [MDN Web Docs page](https://developer.mozilla.org/en-US/docs/Glossary/Doctype)",
+      "description": "Specifying a doctype prevents the browser from switching to quirks-mode. Read more on the [MDN Web Docs page](https://developer.mozilla.org/en-US/docs/Glossary/Doctype)",
       "score": 1,
       "scoreDisplayMode": "binary"
     },
@@ -2746,7 +2746,7 @@
     "geolocation-on-start": {
       "id": "geolocation-on-start",
       "title": "Requests the geolocation permission on page load",
-      "description": "Users are mistrustful of or confused by sites that request their location without context. Consider tying the request to user gestures instead. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/geolocation-on-load).",
+      "description": "Users are mistrustful of or confused by sites that request their location without context. Consider tying the request to a user action instead. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/geolocation-on-load).",
       "score": 0,
       "scoreDisplayMode": "binary",
       "details": {
@@ -5117,6 +5117,23 @@
       "warningHeader": "Warnings: "
     },
     "icuMessagePaths": {
+      "lighthouse-core/audits/is-on-https.js | failureTitle": [
+        "audits[is-on-https].title"
+      ],
+      "lighthouse-core/audits/is-on-https.js | description": [
+        "audits[is-on-https].description"
+      ],
+      "lighthouse-core/audits/is-on-https.js | displayValue": [
+        {
+          "values": {
+            "itemCount": 1
+          },
+          "path": "audits[is-on-https].displayValue"
+        }
+      ],
+      "lighthouse-core/audits/is-on-https.js | columnInsecureURL": [
+        "audits[is-on-https].details.headings[0].text"
+      ],
       "lighthouse-core/audits/metrics/first-contentful-paint.js | title": [
         "audits[first-contentful-paint].title"
       ],
@@ -5223,6 +5240,35 @@
       "lighthouse-core/audits/metrics/max-potential-fid.js | description": [
         "audits[max-potential-fid].description"
       ],
+      "lighthouse-core/audits/errors-in-console.js | failureTitle": [
+        "audits[errors-in-console].title"
+      ],
+      "lighthouse-core/audits/errors-in-console.js | description": [
+        "audits[errors-in-console].description"
+      ],
+      "lighthouse-core/lib/i18n/i18n.js | columnURL": [
+        "audits[errors-in-console].details.headings[0].text",
+        "audits[image-aspect-ratio].details.headings[1].text",
+        "audits.deprecations.details.headings[1].text",
+        "audits[bootup-time].details.headings[0].text",
+        "audits[network-rtt].details.headings[0].text",
+        "audits[network-server-latency].details.headings[0].text",
+        "audits[uses-long-cache-ttl].details.headings[0].text",
+        "audits[total-byte-weight].details.headings[0].text",
+        "audits[render-blocking-resources].details.headings[0].label",
+        "audits[unminified-javascript].details.headings[0].label",
+        "audits[uses-webp-images].details.headings[1].label",
+        "audits[uses-text-compression].details.headings[0].label",
+        "audits[external-anchors-use-rel-noopener].details.headings[0].text",
+        "audits[geolocation-on-start].details.headings[0].text",
+        "audits[no-document-write].details.headings[0].text",
+        "audits[notification-on-start].details.headings[0].text",
+        "audits[uses-http2].details.headings[0].text",
+        "audits[uses-passive-event-listeners].details.headings[0].text"
+      ],
+      "lighthouse-core/audits/errors-in-console.js | columnDesc": [
+        "audits[errors-in-console].details.headings[1].text"
+      ],
       "lighthouse-core/audits/time-to-first-byte.js | title": [
         "audits[time-to-first-byte].title"
       ],
@@ -5281,6 +5327,38 @@
       "lighthouse-core/audits/apple-touch-icon.js | description": [
         "audits[apple-touch-icon].description"
       ],
+      "lighthouse-core/audits/image-aspect-ratio.js | failureTitle": [
+        "audits[image-aspect-ratio].title"
+      ],
+      "lighthouse-core/audits/image-aspect-ratio.js | description": [
+        "audits[image-aspect-ratio].description"
+      ],
+      "lighthouse-core/audits/image-aspect-ratio.js | columnDisplayed": [
+        "audits[image-aspect-ratio].details.headings[2].text"
+      ],
+      "lighthouse-core/audits/image-aspect-ratio.js | columnActual": [
+        "audits[image-aspect-ratio].details.headings[3].text"
+      ],
+      "lighthouse-core/audits/deprecations.js | failureTitle": [
+        "audits.deprecations.title"
+      ],
+      "lighthouse-core/audits/deprecations.js | description": [
+        "audits.deprecations.description"
+      ],
+      "lighthouse-core/audits/deprecations.js | displayValue": [
+        {
+          "values": {
+            "itemCount": 3
+          },
+          "path": "audits.deprecations.displayValue"
+        }
+      ],
+      "lighthouse-core/audits/deprecations.js | columnDeprecate": [
+        "audits.deprecations.details.headings[0].text"
+      ],
+      "lighthouse-core/audits/deprecations.js | columnLine": [
+        "audits.deprecations.details.headings[2].text"
+      ],
       "lighthouse-core/audits/mainthread-work-breakdown.js | title": [
         "audits[mainthread-work-breakdown].title"
       ],
@@ -5301,17 +5379,6 @@
       "lighthouse-core/audits/bootup-time.js | description": [
         "audits[bootup-time].description"
       ],
-      "lighthouse-core/lib/i18n/i18n.js | columnURL": [
-        "audits[bootup-time].details.headings[0].text",
-        "audits[network-rtt].details.headings[0].text",
-        "audits[network-server-latency].details.headings[0].text",
-        "audits[uses-long-cache-ttl].details.headings[0].text",
-        "audits[total-byte-weight].details.headings[0].text",
-        "audits[render-blocking-resources].details.headings[0].label",
-        "audits[unminified-javascript].details.headings[0].label",
-        "audits[uses-webp-images].details.headings[1].label",
-        "audits[uses-text-compression].details.headings[0].label"
-      ],
       "lighthouse-core/audits/bootup-time.js | columnTotal": [
         "audits[bootup-time].details.headings[1].text"
       ],
@@ -5828,6 +5895,26 @@
       "lighthouse-core/audits/byte-efficiency/efficient-animated-content.js | description": [
         "audits[efficient-animated-content].description"
       ],
+      "lighthouse-core/audits/dobetterweb/appcache-manifest.js | failureTitle": [
+        "audits[appcache-manifest].title"
+      ],
+      "lighthouse-core/audits/dobetterweb/appcache-manifest.js | description": [
+        "audits[appcache-manifest].description"
+      ],
+      "lighthouse-core/audits/dobetterweb/appcache-manifest.js | displayValue": [
+        {
+          "values": {
+            "AppCacheManifest": "clock.appcache"
+          },
+          "path": "audits[appcache-manifest].displayValue"
+        }
+      ],
+      "lighthouse-core/audits/dobetterweb/doctype.js | title": [
+        "audits.doctype.title"
+      ],
+      "lighthouse-core/audits/dobetterweb/doctype.js | description": [
+        "audits.doctype.description"
+      ],
       "lighthouse-core/audits/dobetterweb/dom-size.js | title": [
         "audits[dom-size].title"
       ],
@@ -5860,6 +5947,120 @@
       "lighthouse-core/audits/dobetterweb/dom-size.js | statisticDOMWidth": [
         "audits[dom-size].details.items[2].statistic"
       ],
+      "lighthouse-core/audits/dobetterweb/external-anchors-use-rel-noopener.js | failureTitle": [
+        "audits[external-anchors-use-rel-noopener].title"
+      ],
+      "lighthouse-core/audits/dobetterweb/external-anchors-use-rel-noopener.js | description": [
+        "audits[external-anchors-use-rel-noopener].description"
+      ],
+      "lighthouse-core/audits/dobetterweb/external-anchors-use-rel-noopener.js | warning": [
+        {
+          "values": {
+            "anchorHTML": "<a target=\"blank\">Hello</a>"
+          },
+          "path": "audits[external-anchors-use-rel-noopener].warnings[0]"
+        }
+      ],
+      "lighthouse-core/audits/dobetterweb/external-anchors-use-rel-noopener.js | columnTarget": [
+        "audits[external-anchors-use-rel-noopener].details.headings[1].text"
+      ],
+      "lighthouse-core/audits/dobetterweb/external-anchors-use-rel-noopener.js | columnRel": [
+        "audits[external-anchors-use-rel-noopener].details.headings[2].text"
+      ],
+      "lighthouse-core/audits/dobetterweb/geolocation-on-start.js | failureTitle": [
+        "audits[geolocation-on-start].title"
+      ],
+      "lighthouse-core/audits/dobetterweb/geolocation-on-start.js | description": [
+        "audits[geolocation-on-start].description"
+      ],
+      "lighthouse-core/lib/i18n/i18n.js | columnLocation": [
+        "audits[geolocation-on-start].details.headings[1].text",
+        "audits[no-document-write].details.headings[1].text",
+        "audits[notification-on-start].details.headings[1].text",
+        "audits[uses-passive-event-listeners].details.headings[1].text"
+      ],
+      "lighthouse-core/audits/dobetterweb/no-document-write.js | failureTitle": [
+        "audits[no-document-write].title"
+      ],
+      "lighthouse-core/audits/dobetterweb/no-document-write.js | description": [
+        "audits[no-document-write].description"
+      ],
+      "lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js | failureTitle": [
+        "audits[no-vulnerable-libraries].title"
+      ],
+      "lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js | description": [
+        "audits[no-vulnerable-libraries].description"
+      ],
+      "lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js | displayValue": [
+        {
+          "values": {
+            "itemCount": 2
+          },
+          "path": "audits[no-vulnerable-libraries].displayValue"
+        }
+      ],
+      "lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js | columnVersion": [
+        "audits[no-vulnerable-libraries].details.headings[0].text"
+      ],
+      "lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js | columnVuln": [
+        "audits[no-vulnerable-libraries].details.headings[1].text"
+      ],
+      "lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js | columnSeverity": [
+        "audits[no-vulnerable-libraries].details.headings[2].text"
+      ],
+      "lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js | rowSeverityMedium": [
+        "audits[no-vulnerable-libraries].details.items[0].highestSeverity"
+      ],
+      "lighthouse-core/audits/dobetterweb/js-libraries.js | title": [
+        "audits[js-libraries].title"
+      ],
+      "lighthouse-core/audits/dobetterweb/js-libraries.js | description": [
+        "audits[js-libraries].description"
+      ],
+      "lighthouse-core/audits/dobetterweb/js-libraries.js | columnName": [
+        "audits[js-libraries].details.headings[0].text"
+      ],
+      "lighthouse-core/audits/dobetterweb/js-libraries.js | columnVersion": [
+        "audits[js-libraries].details.headings[1].text"
+      ],
+      "lighthouse-core/audits/dobetterweb/notification-on-start.js | failureTitle": [
+        "audits[notification-on-start].title"
+      ],
+      "lighthouse-core/audits/dobetterweb/notification-on-start.js | description": [
+        "audits[notification-on-start].description"
+      ],
+      "lighthouse-core/audits/dobetterweb/password-inputs-can-be-pasted-into.js | failureTitle": [
+        "audits[password-inputs-can-be-pasted-into].title"
+      ],
+      "lighthouse-core/audits/dobetterweb/password-inputs-can-be-pasted-into.js | description": [
+        "audits[password-inputs-can-be-pasted-into].description"
+      ],
+      "lighthouse-core/audits/dobetterweb/password-inputs-can-be-pasted-into.js | columnFailingElem": [
+        "audits[password-inputs-can-be-pasted-into].details.headings[0].text"
+      ],
+      "lighthouse-core/audits/dobetterweb/uses-http2.js | failureTitle": [
+        "audits[uses-http2].title"
+      ],
+      "lighthouse-core/audits/dobetterweb/uses-http2.js | description": [
+        "audits[uses-http2].description"
+      ],
+      "lighthouse-core/audits/dobetterweb/uses-http2.js | displayValue": [
+        {
+          "values": {
+            "itemCount": 15
+          },
+          "path": "audits[uses-http2].displayValue"
+        }
+      ],
+      "lighthouse-core/audits/dobetterweb/uses-http2.js | columnProtocol": [
+        "audits[uses-http2].details.headings[1].text"
+      ],
+      "lighthouse-core/audits/dobetterweb/uses-passive-event-listeners.js | failureTitle": [
+        "audits[uses-passive-event-listeners].title"
+      ],
+      "lighthouse-core/audits/dobetterweb/uses-passive-event-listeners.js | description": [
+        "audits[uses-passive-event-listeners].description"
+      ],
       "lighthouse-core/audits/seo/meta-description.js | failureTitle": [
         "audits[meta-description].title"
       ],
@@ -5960,6 +6161,9 @@
       "lighthouse-core/config/default-config.js | a11yCategoryManualDescription": [
         "categories.accessibility.manualDescription"
       ],
+      "lighthouse-core/config/default-config.js | bestPracticesCategoryTitle": [
+        "categories[best-practices].title"
+      ],
       "lighthouse-core/config/default-config.js | seoCategoryTitle": [
         "categories.seo.title"
       ],
diff --git a/proto/sample_v2_round_trip.json b/proto/sample_v2_round_trip.json
index baf0bb7add7f..0c03c90c9db3 100644
--- a/proto/sample_v2_round_trip.json
+++ b/proto/sample_v2_round_trip.json
@@ -492,7 +492,7 @@
             "title": "Definition list items are wrapped in `<dl>` elements"
         },
         "doctype": {
-            "description": "Specifying a doctype prevents the browser from switching to quirks-mode.Read more on the [MDN Web Docs page](https://developer.mozilla.org/en-US/docs/Glossary/Doctype)",
+            "description": "Specifying a doctype prevents the browser from switching to quirks-mode. Read more on the [MDN Web Docs page](https://developer.mozilla.org/en-US/docs/Glossary/Doctype)",
             "id": "doctype",
             "score": 1.0,
             "scoreDisplayMode": "binary",
@@ -810,7 +810,7 @@
             "title": "`<frame>` or `<iframe>` elements have a title"
         },
         "geolocation-on-start": {
-            "description": "Users are mistrustful of or confused by sites that request their location without context. Consider tying the request to user gestures instead. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/geolocation-on-load).",
+            "description": "Users are mistrustful of or confused by sites that request their location without context. Consider tying the request to a user action instead. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/geolocation-on-load).",
             "details": {
                 "headings": [
                     {

From 5a8c18bd29245dcc46ae86a25c56d3ecd022d8f3 Mon Sep 17 00:00:00 2001
From: Paul Irish <paulirish@google.com>
Date: Tue, 25 Jun 2019 15:19:35 -0700
Subject: [PATCH 058/110] misc(build): generate report variants in deployment
 (#9280)

---
 .build-for-now.sh                             | 19 -----------
 lighthouse-core/runner.js                     |  1 +
 .../build-report-for-autodeployment.js        | 32 ++++++++++++++++---
 now.json                                      |  2 +-
 package.json                                  |  3 +-
 5 files changed, 31 insertions(+), 26 deletions(-)
 delete mode 100644 .build-for-now.sh

diff --git a/.build-for-now.sh b/.build-for-now.sh
deleted file mode 100644
index 07e7accd0791..000000000000
--- a/.build-for-now.sh
+++ /dev/null
@@ -1,19 +0,0 @@
-#!/usr/bin/env bash
-
-##
-# @license Copyright 2019 Google Inc. All Rights Reserved.
-# Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
-# Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
-##
-
-set -x
-
-# Manually install this one report dependency. Avoid installing all deps (for speed)
-rm package.json
-yarn add details-element-polyfill@2.2.0
-
-# Create dist if it's not already there
-mkdir -p dist
-
-# Generate the report and place as dist/index.html
-node lighthouse-core/scripts/build-report-for-autodeployment.js
diff --git a/lighthouse-core/runner.js b/lighthouse-core/runner.js
index c96a9e6a55a9..a798eda2edd8 100644
--- a/lighthouse-core/runner.js
+++ b/lighthouse-core/runner.js
@@ -237,6 +237,7 @@ class Runner {
         gatherMode: undefined,
         auditMode: undefined,
         output: undefined,
+        channel: undefined,
         budgets: undefined,
       };
       const normalizedGatherSettings = Object.assign({}, artifacts.settings, overrides);
diff --git a/lighthouse-core/scripts/build-report-for-autodeployment.js b/lighthouse-core/scripts/build-report-for-autodeployment.js
index f4534436ed3d..5bfab5d568d7 100644
--- a/lighthouse-core/scripts/build-report-for-autodeployment.js
+++ b/lighthouse-core/scripts/build-report-for-autodeployment.js
@@ -10,10 +10,14 @@
 /* eslint-disable no-console */
 const fs = require('fs');
 const path = require('path');
+const mkdirp = require('mkdirp').sync;
+const swapLocale = require('../lib/i18n/swap-locale.js');
 
 const ReportGenerator = require('../../lighthouse-core/report/report-generator.js');
 const lhr = /** @type {LH.Result} */ (require('../../lighthouse-core/test/results/sample_v2.json'));
 
+const DIST = path.join(__dirname, `../../dist`);
+
 // Add a plugin to demo plugin rendering.
 lhr.categories['lighthouse-plugin-someplugin'] = {
   id: 'lighthouse-plugin-someplugin',
@@ -22,8 +26,26 @@ lhr.categories['lighthouse-plugin-someplugin'] = {
   auditRefs: [],
 };
 
-console.log('🕒 Generating report for sample_v2.json...');
-const html = ReportGenerator.generateReport(lhr, 'html');
-const filename = path.join(__dirname, '../../dist/index.html');
-fs.writeFileSync(filename, html, {encoding: 'utf-8'});
-console.log('✅', filename, 'written.');
+(async function() {
+  const filenameToLhr = {
+    'english': lhr,
+    'espanol': swapLocale(lhr, 'es').lhr,
+    'arabic': swapLocale(lhr, 'ar').lhr,
+  };
+
+  mkdirp(DIST);
+
+  // Generate and write reports
+  Object.entries(filenameToLhr).forEach(([filename, lhr]) => {
+    let html = ReportGenerator.generateReportHtml(lhr);
+    for (const variant of ['', '-devtools']) {
+      if (variant === '-devtools') {
+        html = html.replace(`"lh-root lh-vars"`, `"lh-root lh-vars lh-devtools"`);
+      }
+      const filepath = `${DIST}/${filename}${variant}/index.html`;
+      mkdirp(path.dirname(filepath));
+      fs.writeFileSync(filepath, html, {encoding: 'utf-8'});
+      console.log('✅', filepath, 'written.');
+    }
+  });
+})();
diff --git a/now.json b/now.json
index fd1f9ca74f51..02b220f9dada 100644
--- a/now.json
+++ b/now.json
@@ -2,7 +2,7 @@
   "version": 2,
   "builds": [
     {
-      "src": ".build-for-now.sh",
+      "src": "package.json",
       "use": "@now/static-build"
     }
   ],
diff --git a/package.json b/package.json
index cceb6d70d364..556bc7f4c94e 100644
--- a/package.json
+++ b/package.json
@@ -47,6 +47,7 @@
     "chrome": "node lighthouse-core/scripts/manual-chrome-launcher.js",
     "fast": "yarn start --emulated-form-factor=none --throttlingMethod=provided",
     "deploy-viewer": "yarn build-viewer --deploy",
+    "now-build": "node lighthouse-core/scripts/build-report-for-autodeployment.js",
     "bundlesize": "bundlesize",
     "timing-trace": "node lighthouse-core/scripts/generate-timing-trace.js",
     "changelog": "conventional-changelog --config ./build/changelog-generator/index.js --infile changelog.md --same-file",
@@ -122,7 +123,6 @@
     "isomorphic-fetch": "^2.2.1",
     "jest": "^24.3.0",
     "jsdom": "^12.2.0",
-    "lodash.set": "^4.3.2",
     "make-dir": "^1.3.0",
     "npm-run-posix-or-windows": "^2.0.2",
     "nyc": "^13.3.0",
@@ -152,6 +152,7 @@
     "jsonlint-mod": "^1.7.4",
     "lighthouse-logger": "^1.2.0",
     "lodash.isequal": "^4.5.0",
+    "lodash.set": "^4.3.2",
     "lookup-closest-locale": "6.0.4",
     "metaviewport-parser": "0.2.0",
     "mkdirp": "0.5.1",

From bcb678e5a3e1319a36ee6bdf5b5be4eec25b334b Mon Sep 17 00:00:00 2001
From: Yang Li <remexllee@gmail.com>
Date: Tue, 25 Jun 2019 18:31:18 -0400
Subject: [PATCH 059/110] misc: add .idea to .gitignore for WebStorm developers
 (#9275)

---
 .gitignore | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.gitignore b/.gitignore
index 7ca46ac3ee91..fadf1382d5b3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,6 +3,7 @@ node_modules
 npm-debug.log
 .vscode
 .tmp
+.idea
 
 /dist
 coverage

From 904dfbd0d0ad00a32c5c8edd013cc72994ab02b9 Mon Sep 17 00:00:00 2001
From: Connor Clark <cjamcl@google.com>
Date: Tue, 25 Jun 2019 18:21:42 -0700
Subject: [PATCH 060/110] misc: fix typo in performance-budget smoke test
 (#9244)

---
 .../test/fixtures/perf/perf-budgets/load-things.html          | 4 ++--
 lighthouse-cli/test/smokehouse/perf/expectations.js           | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/lighthouse-cli/test/fixtures/perf/perf-budgets/load-things.html b/lighthouse-cli/test/fixtures/perf/perf-budgets/load-things.html
index a0cca3060870..26cb786fb21b 100644
--- a/lighthouse-cli/test/fixtures/perf/perf-budgets/load-things.html
+++ b/lighthouse-cli/test/fixtures/perf/perf-budgets/load-things.html
@@ -30,7 +30,7 @@
         // Load file as 'other' resource.
         const response = await fetch('http://localhost:10503/preload.html');
         const ab = await response.arrayBuffer();
-        document.querySelector('#corsfont').textContent = ab.length;
+        document.querySelector('.fetch-length').textContent = ab.byteLength;
       }
       yah();
     </script>
@@ -40,7 +40,7 @@
     <img style="width: 100px; height: 100px;" src="../../byte-efficiency/large.svg">
     <p class="webfont">Ripping off some webfont smoke tests</p>
     <p><strong class="webfont">Do we need such text</strong></p>
-    <p id="corsfont"></p>
+    <p class="fetch-length"></p>
     <script src="../level-2.js"></script>
   </body>
 </html>
diff --git a/lighthouse-cli/test/smokehouse/perf/expectations.js b/lighthouse-cli/test/smokehouse/perf/expectations.js
index b0d64f39f607..45b1e239905f 100644
--- a/lighthouse-cli/test/smokehouse/perf/expectations.js
+++ b/lighthouse-cli/test/smokehouse/perf/expectations.js
@@ -110,7 +110,7 @@ module.exports = [
               {
                 resourceType: 'document',
                 countOverBudget: '1 request',
-                sizeOverBudget: '1100±50',
+                sizeOverBudget: '1150±50',
               },
               {
                 resourceType: 'stylesheet',

From f6df91ac5935b37a2928a6d1ee9ab7fb24092bb9 Mon Sep 17 00:00:00 2001
From: Connor Clark <cjamcl@google.com>
Date: Tue, 25 Jun 2019 19:12:49 -0700
Subject: [PATCH 061/110] report: center and style top-level runtimeError
 (#9271)

---
 lighthouse-core/report/html/report-styles.css | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/lighthouse-core/report/html/report-styles.css b/lighthouse-core/report/html/report-styles.css
index 250598acb329..3eb8135442cd 100644
--- a/lighthouse-core/report/html/report-styles.css
+++ b/lighthouse-core/report/html/report-styles.css
@@ -29,12 +29,12 @@
 
   For colors: --color-{hue}-{intensity}
 
-  {intensity} is the Material Design tag - 700, A700, etc. Omit "-{intensity}" if there is only one
-  color of that hue.
+  {intensity} is the Material Design tag - 700, A700, etc.
 */
 .lh-vars {
   /* Palette using Material Design Colors
    * https://www.materialui.co/colors */
+  --color-amber-50: #FFF8E1;
   --color-blue-200: #90CAF9;
   --color-blue-900: #0D47A1;
   --color-blue-A700: #2962FF;
@@ -138,6 +138,7 @@
   --topbar-height: 32px;
   --topbar-logo-size: 24px;
   --topbar-padding: 0 8px;
+  --toplevel-warning-padding: 22px;
 
   /* SVGs */
   --plugin-icon-url-dark: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="24px" height="24px" viewBox="0 0 24 24" fill="%23FFFFFF"><path d="M0 0h24v24H0z" fill="none"/><path d="M20.5 11H19V7c0-1.1-.9-2-2-2h-4V3.5C13 2.12 11.88 1 10.5 1S8 2.12 8 3.5V5H4c-1.1 0-1.99.9-1.99 2v3.8H3.5c1.49 0 2.7 1.21 2.7 2.7s-1.21 2.7-2.7 2.7H2V20c0 1.1.9 2 2 2h3.8v-1.5c0-1.49 1.21-2.7 2.7-2.7 1.49 0 2.7 1.21 2.7 2.7V22H17c1.1 0 2-.9 2-2v-4h1.5c1.38 0 2.5-1.12 2.5-2.5S21.88 11 20.5 11z"/></svg>');
@@ -998,9 +999,13 @@
 .lh-warnings--toplevel {
   --item-margin: calc(var(--header-line-height) / 4);
   color: var(--report-text-color-secondary);
-  margin: var(--category-padding);
-  padding: var(--category-padding);
+  margin-left: auto;
+  margin-right: auto;
+  max-width: calc(var(--report-width) - var(--category-padding) * 2);
+  background-color: var(--color-amber-50);
+  padding: var(--toplevel-warning-padding);
 }
+
 .lh-warnings ul {
   padding-left: calc(var(--category-padding) * 2);
   margin: 0;

From e3cbe02c054ceeb5663f45e1aed88f5cf88efe57 Mon Sep 17 00:00:00 2001
From: Shane Exterkamp <shaneexterkamp5@gmail.com>
Date: Wed, 26 Jun 2019 08:04:22 -0700
Subject: [PATCH 062/110] i18n: enable local debug locale, en-XL (#9192)

---
 lighthouse-core/lib/i18n/i18n.js              |    2 +-
 lighthouse-core/lib/i18n/locales.js           |    1 +
 lighthouse-core/lib/i18n/locales/en-XL.json   | 1346 +++++++++++++++++
 .../scripts/i18n/collect-strings.js           |   48 +-
 types/externs.d.ts                            |    2 +-
 5 files changed, 1394 insertions(+), 5 deletions(-)
 create mode 100644 lighthouse-core/lib/i18n/locales/en-XL.json

diff --git a/lighthouse-core/lib/i18n/i18n.js b/lighthouse-core/lib/i18n/i18n.js
index 36476f29b274..1fd5d99ab29e 100644
--- a/lighthouse-core/lib/i18n/i18n.js
+++ b/lighthouse-core/lib/i18n/i18n.js
@@ -189,7 +189,7 @@ function _formatIcuMessage(locale, icuMessageId, fallbackMessage, values) {
   const messageForMessageFormat = localeMessage || fallbackMessage;
   if (messageForMessageFormat === undefined) throw new Error(_ICUMsgNotFoundMsg);
   // when using accented english, force the use of a different locale for number formatting
-  const localeForMessageFormat = locale === 'en-XA' ? 'de-DE' : locale;
+  const localeForMessageFormat = (locale === 'en-XA' || locale === 'en-XL') ? 'de-DE' : locale;
   // pre-process values for the message format like KB and milliseconds
   const valuesForMessageFormat = _preprocessMessageValues(messageForMessageFormat, values);
 
diff --git a/lighthouse-core/lib/i18n/locales.js b/lighthouse-core/lib/i18n/locales.js
index 37f76548cd8f..2baa13fb4729 100644
--- a/lighthouse-core/lib/i18n/locales.js
+++ b/lighthouse-core/lib/i18n/locales.js
@@ -39,6 +39,7 @@ const locales = {
   'de': require('./locales/de.json'), // de-AT, de-CH identical, so they fall back into de
   'el': require('./locales/el.json'),
   'en-XA': require('./locales/en-XA.json'), // psuedolocalization
+  'en-XL': require('./locales/en-XL.json'), // local psuedolocalization
   'es': require('./locales/es.json'),
   'es-419': require('./locales/es-419.json'),
   // Aliases of es-419: https://raw.githubusercontent.com/unicode-cldr/cldr-core/master/supplemental/parentLocales.json
diff --git a/lighthouse-core/lib/i18n/locales/en-XL.json b/lighthouse-core/lib/i18n/locales/en-XL.json
new file mode 100644
index 000000000000..d4ccecd4d5bb
--- /dev/null
+++ b/lighthouse-core/lib/i18n/locales/en-XL.json
@@ -0,0 +1,1346 @@
+{
+  "lighthouse-core/audits/accessibility/accesskeys.js | description": {
+    "message": "Âćĉéŝś k̂éŷś l̂ét̂ úŝér̂ś q̂úîćk̂ĺŷ f́ôćûś â ṕâŕt̂ óf̂ t́ĥé p̂áĝé. F̂ór̂ ṕr̂óp̂ér̂ ńâv́îǵât́îón̂, éâćĥ áĉćêśŝ ḱêý m̂úŝt́ b̂é ûńîq́ûé. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂éq̂úêún̂ív̂ér̂śît́ŷ.ćôḿ/r̂úl̂éŝ/áx̂é/3.1/âćĉéŝśk̂éŷś?âṕp̂ĺîćât́îón̂=ĺîǵĥt́ĥóûśê)."
+  },
+  "lighthouse-core/audits/accessibility/accesskeys.js | failureTitle": {
+    "message": "`[âćĉéŝśk̂éŷ]` v́âĺûéŝ ár̂é n̂ót̂ ún̂íq̂úê"
+  },
+  "lighthouse-core/audits/accessibility/accesskeys.js | title": {
+    "message": "`[âćĉéŝśk̂éŷ]` v́âĺûéŝ ár̂é ûńîq́ûé"
+  },
+  "lighthouse-core/audits/accessibility/aria-allowed-attr.js | description": {
+    "message": "Êáĉh́ ÂŔÎÁ `r̂ól̂é` ŝúp̂ṕôŕt̂ś â śp̂éĉíf̂íĉ śûb́ŝét̂ óf̂ `ár̂íâ-*` át̂t́r̂íb̂út̂éŝ. Ḿîśm̂át̂ćĥín̂ǵ t̂h́êśê ín̂v́âĺîd́ât́êś t̂h́ê `ár̂íâ-*` át̂t́r̂íb̂út̂éŝ. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êq́ûéûńîv́êŕŝít̂ý.ĉóm̂/ŕûĺêś/âx́ê/3.1/ár̂íâ-ál̂ĺôẃêd́-ât́t̂ŕ?âṕp̂ĺîćât́îón̂=ĺîǵĥt́ĥóûśê)."
+  },
+  "lighthouse-core/audits/accessibility/aria-allowed-attr.js | failureTitle": {
+    "message": "`[âŕîá-*]` ât́t̂ŕîb́ût́êś d̂ó n̂ót̂ ḿât́ĉh́ t̂h́êír̂ ŕôĺêś"
+  },
+  "lighthouse-core/audits/accessibility/aria-allowed-attr.js | title": {
+    "message": "`[âŕîá-*]` ât́t̂ŕîb́ût́êś m̂át̂ćĥ t́ĥéîŕ r̂ól̂éŝ"
+  },
+  "lighthouse-core/audits/accessibility/aria-required-attr.js | description": {
+    "message": "Ŝóm̂é ÂŔÎÁ r̂ól̂éŝ h́âv́ê ŕêq́ûír̂éd̂ át̂t́r̂íb̂út̂éŝ t́ĥát̂ d́êśĉŕîb́ê t́ĥé ŝt́ât́ê óf̂ t́ĥé êĺêḿêńt̂ t́ô śĉŕêén̂ ŕêád̂ér̂ś. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂éq̂úêún̂ív̂ér̂śît́ŷ.ćôḿ/r̂úl̂éŝ/áx̂é/3.1/âŕîá-r̂éq̂úîŕêd́-ât́t̂ŕ?âṕp̂ĺîćât́îón̂=ĺîǵĥt́ĥóûśê)."
+  },
+  "lighthouse-core/audits/accessibility/aria-required-attr.js | failureTitle": {
+    "message": "`[r̂ól̂é]`ŝ d́ô ńôt́ ĥáv̂é âĺl̂ ŕêq́ûír̂éd̂ `[ár̂íâ-*]` át̂t́r̂íb̂út̂éŝ"
+  },
+  "lighthouse-core/audits/accessibility/aria-required-attr.js | title": {
+    "message": "`[r̂ól̂é]`ŝ h́âv́ê ál̂ĺ r̂éq̂úîŕêd́ `[âŕîá-*]` ât́t̂ŕîb́ût́êś"
+  },
+  "lighthouse-core/audits/accessibility/aria-required-children.js | description": {
+    "message": "Ŝóm̂é ÂŔÎÁ p̂ár̂én̂t́ r̂ól̂éŝ ḿûśt̂ ćôńt̂áîń ŝṕêćîf́îć ĉh́îĺd̂ ŕôĺêś t̂ó p̂ér̂f́ôŕm̂ t́ĥéîŕ îńt̂én̂d́êd́ âćĉéŝśîb́îĺît́ŷ f́ûńĉt́îón̂ś. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂éq̂úêún̂ív̂ér̂śît́ŷ.ćôḿ/r̂úl̂éŝ/áx̂é/3.1/âŕîá-r̂éq̂úîŕêd́-ĉh́îĺd̂ŕêń?âṕp̂ĺîćât́îón̂=ĺîǵĥt́ĥóûśê)."
+  },
+  "lighthouse-core/audits/accessibility/aria-required-children.js | failureTitle": {
+    "message": "Êĺêḿêńt̂ś ŵít̂h́ `[r̂ól̂é]` t̂h́ât́ r̂éq̂úîŕê śp̂éĉíf̂íĉ ćĥíl̂d́r̂én̂ `[ŕôĺê]`ś, âŕê ḿîśŝín̂ǵ."
+  },
+  "lighthouse-core/audits/accessibility/aria-required-children.js | title": {
+    "message": "Êĺêḿêńt̂ś ŵít̂h́ `[r̂ól̂é]` t̂h́ât́ r̂éq̂úîŕê śp̂éĉíf̂íĉ ćĥíl̂d́r̂én̂ `[ŕôĺê]`ś, âŕê ṕr̂éŝén̂t́"
+  },
+  "lighthouse-core/audits/accessibility/aria-required-parent.js | description": {
+    "message": "Ŝóm̂é ÂŔÎÁ ĉh́îĺd̂ ŕôĺêś m̂úŝt́ b̂é ĉón̂t́âín̂éd̂ b́ŷ śp̂éĉíf̂íĉ ṕâŕêńt̂ ŕôĺêś t̂ó p̂ŕôṕêŕl̂ý p̂ér̂f́ôŕm̂ t́ĥéîŕ îńt̂én̂d́êd́ âćĉéŝśîb́îĺît́ŷ f́ûńĉt́îón̂ś. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂éq̂úêún̂ív̂ér̂śît́ŷ.ćôḿ/r̂úl̂éŝ/áx̂é/3.1/âŕîá-r̂éq̂úîŕêd́-p̂ár̂én̂t́?âṕp̂ĺîćât́îón̂=ĺîǵĥt́ĥóûśê)."
+  },
+  "lighthouse-core/audits/accessibility/aria-required-parent.js | failureTitle": {
+    "message": "`[r̂ól̂é]`ŝ ár̂é n̂ót̂ ćôńt̂áîńêd́ b̂ý t̂h́êír̂ ŕêq́ûír̂éd̂ ṕâŕêńt̂ él̂ém̂én̂t́"
+  },
+  "lighthouse-core/audits/accessibility/aria-required-parent.js | title": {
+    "message": "`[r̂ól̂é]`ŝ ár̂é ĉón̂t́âín̂éd̂ b́ŷ t́ĥéîŕ r̂éq̂úîŕêd́ p̂ár̂én̂t́ êĺêḿêńt̂"
+  },
+  "lighthouse-core/audits/accessibility/aria-roles.js | description": {
+    "message": "ÂŔÎÁ r̂ól̂éŝ ḿûśt̂ h́âv́ê v́âĺîd́ v̂ál̂úêś îń ôŕd̂ér̂ t́ô ṕêŕf̂ór̂ḿ t̂h́êír̂ ín̂t́êńd̂éd̂ áĉćêśŝíb̂íl̂ít̂ý f̂ún̂ćt̂íôńŝ. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êq́ûéûńîv́êŕŝít̂ý.ĉóm̂/ŕûĺêś/âx́ê/3.1/ár̂íâ-ŕôĺêś?âṕp̂ĺîćât́îón̂=ĺîǵĥt́ĥóûśê)."
+  },
+  "lighthouse-core/audits/accessibility/aria-roles.js | failureTitle": {
+    "message": "`[r̂ól̂é]` v̂ál̂úêś âŕê ńôt́ v̂ál̂íd̂"
+  },
+  "lighthouse-core/audits/accessibility/aria-roles.js | title": {
+    "message": "`[r̂ól̂é]` v̂ál̂úêś âŕê v́âĺîd́"
+  },
+  "lighthouse-core/audits/accessibility/aria-valid-attr-value.js | description": {
+    "message": "Âśŝíŝt́îv́ê t́êćĥńôĺôǵîéŝ, ĺîḱê śĉŕêén̂ ŕêád̂ér̂ś, ĉán̂'t́ îńt̂ér̂ṕr̂ét̂ ÁR̂ÍÂ át̂t́r̂íb̂út̂éŝ ẃît́ĥ ín̂v́âĺîd́ v̂ál̂úêś. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂éq̂úêún̂ív̂ér̂śît́ŷ.ćôḿ/r̂úl̂éŝ/áx̂é/3.1/âŕîá-v̂ál̂íd̂-át̂t́r̂-v́âĺûé?âṕp̂ĺîćât́îón̂=ĺîǵĥt́ĥóûśê)."
+  },
+  "lighthouse-core/audits/accessibility/aria-valid-attr-value.js | failureTitle": {
+    "message": "`[âŕîá-*]` ât́t̂ŕîb́ût́êś d̂ó n̂ót̂ h́âv́ê v́âĺîd́ v̂ál̂úêś"
+  },
+  "lighthouse-core/audits/accessibility/aria-valid-attr-value.js | title": {
+    "message": "`[âŕîá-*]` ât́t̂ŕîb́ût́êś ĥáv̂é v̂ál̂íd̂ v́âĺûéŝ"
+  },
+  "lighthouse-core/audits/accessibility/aria-valid-attr.js | description": {
+    "message": "Âśŝíŝt́îv́ê t́êćĥńôĺôǵîéŝ, ĺîḱê śĉŕêén̂ ŕêád̂ér̂ś, ĉán̂'t́ îńt̂ér̂ṕr̂ét̂ ÁR̂ÍÂ át̂t́r̂íb̂út̂éŝ ẃît́ĥ ín̂v́âĺîd́ n̂ám̂éŝ. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êq́ûéûńîv́êŕŝít̂ý.ĉóm̂/ŕûĺêś/âx́ê/3.1/ár̂íâ-v́âĺîd́-ât́t̂ŕ?âṕp̂ĺîćât́îón̂=ĺîǵĥt́ĥóûśê)."
+  },
+  "lighthouse-core/audits/accessibility/aria-valid-attr.js | failureTitle": {
+    "message": "`[âŕîá-*]` ât́t̂ŕîb́ût́êś âŕê ńôt́ v̂ál̂íd̂ ór̂ ḿîśŝṕêĺl̂éd̂"
+  },
+  "lighthouse-core/audits/accessibility/aria-valid-attr.js | title": {
+    "message": "`[âŕîá-*]` ât́t̂ŕîb́ût́êś âŕê v́âĺîd́ âńd̂ ńôt́ m̂íŝśp̂él̂ĺêd́"
+  },
+  "lighthouse-core/audits/accessibility/audio-caption.js | description": {
+    "message": "Ĉáp̂t́îón̂ś m̂ák̂é âúd̂íô él̂ém̂én̂t́ŝ úŝáb̂ĺê f́ôŕ d̂éâf́ ôŕ ĥéâŕîńĝ-ím̂ṕâír̂éd̂ úŝér̂ś, p̂ŕôv́îd́îńĝ ćr̂ít̂íĉál̂ ín̂f́ôŕm̂át̂íôń ŝúĉh́ âś ŵh́ô íŝ t́âĺk̂ín̂ǵ, ŵh́ât́ t̂h́êý'r̂é ŝáŷín̂ǵ, âńd̂ ót̂h́êŕ n̂ón̂-śp̂éêćĥ ín̂f́ôŕm̂át̂íôń. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂éq̂úêún̂ív̂ér̂śît́ŷ.ćôḿ/r̂úl̂éŝ/áx̂é/3.1/âúd̂íô-ćâṕt̂íôń?âṕp̂ĺîćât́îón̂=ĺîǵĥt́ĥóûśê)."
+  },
+  "lighthouse-core/audits/accessibility/audio-caption.js | failureTitle": {
+    "message": "`<âúd̂íô>` él̂ém̂én̂t́ŝ ár̂é m̂íŝśîńĝ á `<t̂ŕâćk̂>` él̂ém̂én̂t́ ŵít̂h́ `[k̂ín̂d́=\"ĉáp̂t́îón̂ś\"]`."
+  },
+  "lighthouse-core/audits/accessibility/audio-caption.js | title": {
+    "message": "`<âúd̂íô>` él̂ém̂én̂t́ŝ ćôńt̂áîń â `<t́r̂áĉḱ>` êĺêḿêńt̂ ẃît́ĥ `[ḱîńd̂=\"ćâṕt̂íôńŝ\"]`"
+  },
+  "lighthouse-core/audits/accessibility/axe-audit.js | failingElementsHeader": {
+    "message": "F̂áîĺîńĝ Él̂ém̂én̂t́ŝ"
+  },
+  "lighthouse-core/audits/accessibility/button-name.js | description": {
+    "message": "Ŵh́êń â b́ût́t̂ón̂ d́ôéŝń't̂ h́âv́ê án̂ áĉćêśŝíb̂ĺê ńâḿê, śĉŕêén̂ ŕêád̂ér̂ś âńn̂óûńĉé ît́ âś \"b̂út̂t́ôń\", m̂ák̂ín̂ǵ ît́ ûńûśâb́l̂é f̂ór̂ úŝér̂ś ŵh́ô ŕêĺŷ ón̂ śĉŕêén̂ ŕêád̂ér̂ś. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂éq̂úêún̂ív̂ér̂śît́ŷ.ćôḿ/r̂úl̂éŝ/áx̂é/3.1/b̂út̂t́ôń-n̂ám̂é?âṕp̂ĺîćât́îón̂=ĺîǵĥt́ĥóûśê)."
+  },
+  "lighthouse-core/audits/accessibility/button-name.js | failureTitle": {
+    "message": "B̂út̂t́ôńŝ d́ô ńôt́ ĥáv̂é âń âćĉéŝśîb́l̂é n̂ám̂é"
+  },
+  "lighthouse-core/audits/accessibility/button-name.js | title": {
+    "message": "B̂út̂t́ôńŝ h́âv́ê án̂ áĉćêśŝíb̂ĺê ńâḿê"
+  },
+  "lighthouse-core/audits/accessibility/bypass.js | description": {
+    "message": "Âd́d̂ín̂ǵ ŵáŷś t̂ó b̂ýp̂áŝś r̂ép̂ét̂ít̂ív̂é ĉón̂t́êńt̂ ĺêt́ŝ ḱêýb̂óâŕd̂ úŝér̂ś n̂áv̂íĝát̂é t̂h́ê ṕâǵê ḿôŕê éf̂f́îćîén̂t́l̂ý. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂éq̂úêún̂ív̂ér̂śît́ŷ.ćôḿ/r̂úl̂éŝ/áx̂é/3.1/b̂ýp̂áŝś?âṕp̂ĺîćât́îón̂=ĺîǵĥt́ĥóûśê)."
+  },
+  "lighthouse-core/audits/accessibility/bypass.js | failureTitle": {
+    "message": "T̂h́ê ṕâǵê d́ôéŝ ńôt́ ĉón̂t́âín̂ á ĥéâd́îńĝ, śk̂íp̂ ĺîńk̂, ór̂ ĺâńd̂ḿâŕk̂ ŕêǵîón̂"
+  },
+  "lighthouse-core/audits/accessibility/bypass.js | title": {
+    "message": "T̂h́ê ṕâǵê ćôńt̂áîńŝ á ĥéâd́îńĝ, śk̂íp̂ ĺîńk̂, ór̂ ĺâńd̂ḿâŕk̂ ŕêǵîón̂"
+  },
+  "lighthouse-core/audits/accessibility/color-contrast.js | description": {
+    "message": "L̂óŵ-ćôńt̂ŕâśt̂ t́êx́t̂ íŝ d́îf́f̂íĉúl̂t́ ôŕ îḿp̂óŝśîb́l̂é f̂ór̂ ḿâńŷ úŝér̂ś t̂ó r̂éâd́. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂éq̂úêún̂ív̂ér̂śît́ŷ.ćôḿ/r̂úl̂éŝ/áx̂é/3.1/ĉól̂ór̂-ćôńt̂ŕâśt̂?áp̂ṕl̂íĉát̂íôń=l̂íĝh́t̂h́ôúŝé)."
+  },
+  "lighthouse-core/audits/accessibility/color-contrast.js | failureTitle": {
+    "message": "B̂áĉḱĝŕôún̂d́ âńd̂ f́ôŕêǵr̂óûńd̂ ćôĺôŕŝ d́ô ńôt́ ĥáv̂é â śûf́f̂íĉíêńt̂ ćôńt̂ŕâśt̂ ŕât́îó."
+  },
+  "lighthouse-core/audits/accessibility/color-contrast.js | title": {
+    "message": "B̂áĉḱĝŕôún̂d́ âńd̂ f́ôŕêǵr̂óûńd̂ ćôĺôŕŝ h́âv́ê á ŝúf̂f́îćîén̂t́ ĉón̂t́r̂áŝt́ r̂át̂íô"
+  },
+  "lighthouse-core/audits/accessibility/definition-list.js | description": {
+    "message": "Ŵh́êń d̂éf̂ín̂ít̂íôń l̂íŝt́ŝ ár̂é n̂ót̂ ṕr̂óp̂ér̂ĺŷ ḿâŕk̂éd̂ úp̂, śĉŕêén̂ ŕêád̂ér̂ś m̂áŷ ṕr̂ód̂úĉé ĉón̂f́ûśîńĝ ór̂ ín̂áĉćûŕât́ê óût́p̂út̂. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êq́ûéûńîv́êŕŝít̂ý.ĉóm̂/ŕûĺêś/âx́ê/3.1/d́êf́îńît́îón̂-ĺîśt̂?áp̂ṕl̂íĉát̂íôń=l̂íĝh́t̂h́ôúŝé)."
+  },
+  "lighthouse-core/audits/accessibility/definition-list.js | failureTitle": {
+    "message": "`<d̂ĺ>`'ŝ d́ô ńôt́ ĉón̂t́âín̂ ón̂ĺŷ ṕr̂óp̂ér̂ĺŷ-ór̂d́êŕêd́ `<d̂t́>` âńd̂ `<d́d̂>` ǵr̂óûṕŝ, `<śĉŕîṕt̂>` ór̂ `<t́êḿp̂ĺât́ê>` él̂ém̂én̂t́ŝ."
+  },
+  "lighthouse-core/audits/accessibility/definition-list.js | title": {
+    "message": "`<d̂ĺ>`'ŝ ćôńt̂áîń ôńl̂ý p̂ŕôṕêŕl̂ý-ôŕd̂ér̂éd̂ `<d́t̂>` án̂d́ `<d̂d́>` ĝŕôúp̂ś, `<ŝćr̂íp̂t́>` ôŕ `<t̂ém̂ṕl̂át̂é>` êĺêḿêńt̂ś."
+  },
+  "lighthouse-core/audits/accessibility/dlitem.js | description": {
+    "message": "D̂éf̂ín̂ít̂íôń l̂íŝt́ ît́êḿŝ (`<d́t̂>` án̂d́ `<d̂d́>`) m̂úŝt́ b̂é ŵŕâṕp̂éd̂ ín̂ á p̂ár̂én̂t́ `<d̂ĺ>` êĺêḿêńt̂ t́ô én̂śûŕê t́ĥát̂ śĉŕêén̂ ŕêád̂ér̂ś ĉán̂ ṕr̂óp̂ér̂ĺŷ án̂ńôún̂ćê t́ĥém̂. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êq́ûéûńîv́êŕŝít̂ý.ĉóm̂/ŕûĺêś/âx́ê/3.1/d́l̂ít̂ém̂?áp̂ṕl̂íĉát̂íôń=l̂íĝh́t̂h́ôúŝé)."
+  },
+  "lighthouse-core/audits/accessibility/dlitem.js | failureTitle": {
+    "message": "D̂éf̂ín̂ít̂íôń l̂íŝt́ ît́êḿŝ ár̂é n̂ót̂ ẃr̂áp̂ṕêd́ îń `<d̂ĺ>` êĺêḿêńt̂ś"
+  },
+  "lighthouse-core/audits/accessibility/dlitem.js | title": {
+    "message": "D̂éf̂ín̂ít̂íôń l̂íŝt́ ît́êḿŝ ár̂é ŵŕâṕp̂éd̂ ín̂ `<d́l̂>` él̂ém̂én̂t́ŝ"
+  },
+  "lighthouse-core/audits/accessibility/document-title.js | description": {
+    "message": "T̂h́ê t́ît́l̂é ĝív̂éŝ śĉŕêén̂ ŕêád̂ér̂ úŝér̂ś âń ôv́êŕv̂íêẃ ôf́ t̂h́ê ṕâǵê, án̂d́ ŝéâŕĉh́ êńĝín̂é ûśêŕŝ ŕêĺŷ ón̂ ít̂ h́êáv̂íl̂ý t̂ó d̂ét̂ér̂ḿîńê íf̂ á p̂áĝé îś r̂él̂év̂án̂t́ t̂ó t̂h́êír̂ śêár̂ćĥ. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êv́êĺôṕêŕŝ.ǵôóĝĺê.ćôḿ/ŵéb̂/t́ôól̂ś/l̂íĝh́t̂h́ôúŝé/âúd̂ít̂ś/t̂ít̂ĺê)."
+  },
+  "lighthouse-core/audits/accessibility/document-title.js | failureTitle": {
+    "message": "D̂óĉúm̂én̂t́ d̂óêśn̂'t́ ĥáv̂é â `<t́ît́l̂é>` êĺêḿêńt̂"
+  },
+  "lighthouse-core/audits/accessibility/document-title.js | title": {
+    "message": "D̂óĉúm̂én̂t́ ĥáŝ á `<t̂ít̂ĺê>` él̂ém̂én̂t́"
+  },
+  "lighthouse-core/audits/accessibility/duplicate-id.js | description": {
+    "message": "T̂h́ê v́âĺûé ôf́ âń îd́ ât́t̂ŕîb́ût́ê ḿûśt̂ b́ê ún̂íq̂úê t́ô ṕr̂év̂én̂t́ ôt́ĥér̂ ín̂śt̂án̂ćêś f̂ŕôḿ b̂éîńĝ óv̂ér̂ĺôók̂éd̂ b́ŷ áŝśîśt̂ív̂é t̂éĉh́n̂ól̂óĝíêś. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂éq̂úêún̂ív̂ér̂śît́ŷ.ćôḿ/r̂úl̂éŝ/áx̂é/3.1/d̂úp̂ĺîćât́ê-íd̂?áp̂ṕl̂íĉát̂íôń=l̂íĝh́t̂h́ôúŝé)."
+  },
+  "lighthouse-core/audits/accessibility/duplicate-id.js | failureTitle": {
+    "message": "`[îd́]` ât́t̂ŕîb́ût́êś ôń t̂h́ê ṕâǵê ár̂é n̂ót̂ ún̂íq̂úê"
+  },
+  "lighthouse-core/audits/accessibility/duplicate-id.js | title": {
+    "message": "`[îd́]` ât́t̂ŕîb́ût́êś ôń t̂h́ê ṕâǵê ár̂é ûńîq́ûé"
+  },
+  "lighthouse-core/audits/accessibility/frame-title.js | description": {
+    "message": "Ŝćr̂éêń r̂éâd́êŕ ûśêŕŝ ŕêĺŷ ón̂ f́r̂ám̂é t̂ít̂ĺêś t̂ó d̂éŝćr̂íb̂é t̂h́ê ćôńt̂én̂t́ŝ óf̂ f́r̂ám̂éŝ. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êq́ûéûńîv́êŕŝít̂ý.ĉóm̂/ŕûĺêś/âx́ê/3.1/f́r̂ám̂é-t̂ít̂ĺê?áp̂ṕl̂íĉát̂íôń=l̂íĝh́t̂h́ôúŝé)."
+  },
+  "lighthouse-core/audits/accessibility/frame-title.js | failureTitle": {
+    "message": "`<f̂ŕâḿê>` ór̂ `<íf̂ŕâḿê>` él̂ém̂én̂t́ŝ d́ô ńôt́ ĥáv̂é â t́ît́l̂é"
+  },
+  "lighthouse-core/audits/accessibility/frame-title.js | title": {
+    "message": "`<f̂ŕâḿê>` ór̂ `<íf̂ŕâḿê>` él̂ém̂én̂t́ŝ h́âv́ê á t̂ít̂ĺê"
+  },
+  "lighthouse-core/audits/accessibility/html-has-lang.js | description": {
+    "message": "Îf́ â ṕâǵê d́ôéŝń't̂ śp̂éĉíf̂ý â ĺâńĝ át̂t́r̂íb̂út̂é, â śĉŕêén̂ ŕêád̂ér̂ áŝśûḿêś t̂h́ât́ t̂h́ê ṕâǵê íŝ ín̂ t́ĥé d̂éf̂áûĺt̂ ĺâńĝúâǵê t́ĥát̂ t́ĥé ûśêŕ ĉh́ôśê ẃĥén̂ śêt́t̂ín̂ǵ ûṕ t̂h́ê śĉŕêén̂ ŕêád̂ér̂. Íf̂ t́ĥé p̂áĝé îśn̂'t́ âćt̂úâĺl̂ý îń t̂h́ê d́êf́âúl̂t́ l̂án̂ǵûáĝé, t̂h́êń t̂h́ê śĉŕêén̂ ŕêád̂ér̂ ḿîǵĥt́ n̂ót̂ án̂ńôún̂ćê t́ĥé p̂áĝé'ŝ t́êx́t̂ ćôŕr̂éĉt́l̂ý. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂éq̂úêún̂ív̂ér̂śît́ŷ.ćôḿ/r̂úl̂éŝ/áx̂é/3.1/ĥt́m̂ĺ-ĥáŝ-ĺâńĝ?áp̂ṕl̂íĉát̂íôń=l̂íĝh́t̂h́ôúŝé)."
+  },
+  "lighthouse-core/audits/accessibility/html-has-lang.js | failureTitle": {
+    "message": "`<ĥt́m̂ĺ>` êĺêḿêńt̂ d́ôéŝ ńôt́ ĥáv̂é â `[ĺâńĝ]` át̂t́r̂íb̂út̂é"
+  },
+  "lighthouse-core/audits/accessibility/html-has-lang.js | title": {
+    "message": "`<ĥt́m̂ĺ>` êĺêḿêńt̂ h́âś â `[ĺâńĝ]` át̂t́r̂íb̂út̂é"
+  },
+  "lighthouse-core/audits/accessibility/html-lang-valid.js | description": {
+    "message": "Ŝṕêćîf́ŷín̂ǵ â v́âĺîd́ [B̂ĆP̂ 47 ĺâńĝúâǵê](h́t̂t́p̂ś://ŵẃŵ.ẃ3.ôŕĝ/Ín̂t́êŕn̂át̂íôńâĺ/q̂úêśt̂íôńŝ/q́â-ćĥóôśîńĝ-ĺâńĝúâǵê-t́âǵŝ#q́ûéŝt́îón̂) h́êĺp̂ś ŝćr̂éêń r̂éâd́êŕŝ án̂ńôún̂ćê t́êx́t̂ ṕr̂óp̂ér̂ĺŷ. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êq́ûéûńîv́êŕŝít̂ý.ĉóm̂/ŕûĺêś/âx́ê/3.1/v́âĺîd́-l̂án̂ǵ?âṕp̂ĺîćât́îón̂=ĺîǵĥt́ĥóûśê)."
+  },
+  "lighthouse-core/audits/accessibility/html-lang-valid.js | failureTitle": {
+    "message": "`<ĥt́m̂ĺ>` êĺêḿêńt̂ d́ôéŝ ńôt́ ĥáv̂é â v́âĺîd́ v̂ál̂úê f́ôŕ ît́ŝ `[ĺâńĝ]` át̂t́r̂íb̂út̂é."
+  },
+  "lighthouse-core/audits/accessibility/html-lang-valid.js | title": {
+    "message": "`<ĥt́m̂ĺ>` êĺêḿêńt̂ h́âś â v́âĺîd́ v̂ál̂úê f́ôŕ ît́ŝ `[ĺâńĝ]` át̂t́r̂íb̂út̂é"
+  },
+  "lighthouse-core/audits/accessibility/image-alt.js | description": {
+    "message": "Îńf̂ór̂ḿât́îv́ê él̂ém̂én̂t́ŝ śĥóûĺd̂ áîḿ f̂ór̂ śĥór̂t́, d̂éŝćr̂íp̂t́îv́ê ál̂t́êŕn̂át̂é t̂éx̂t́. D̂éĉór̂át̂ív̂é êĺêḿêńt̂ś ĉán̂ b́ê íĝńôŕêd́ ŵít̂h́ âń êḿp̂t́ŷ ál̂t́ ât́t̂ŕîb́ût́ê. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êq́ûéûńîv́êŕŝít̂ý.ĉóm̂/ŕûĺêś/âx́ê/3.1/ím̂áĝé-âĺt̂?áp̂ṕl̂íĉát̂íôń=l̂íĝh́t̂h́ôúŝé)."
+  },
+  "lighthouse-core/audits/accessibility/image-alt.js | failureTitle": {
+    "message": "Îḿâǵê él̂ém̂én̂t́ŝ d́ô ńôt́ ĥáv̂é `[âĺt̂]` át̂t́r̂íb̂út̂éŝ"
+  },
+  "lighthouse-core/audits/accessibility/image-alt.js | title": {
+    "message": "Îḿâǵê él̂ém̂én̂t́ŝ h́âv́ê `[ál̂t́]` ât́t̂ŕîb́ût́êś"
+  },
+  "lighthouse-core/audits/accessibility/input-image-alt.js | description": {
+    "message": "Ŵh́êń âń îḿâǵê íŝ b́êín̂ǵ ûśêd́ âś âń `<îńp̂út̂>` b́ût́t̂ón̂, ṕr̂óv̂íd̂ín̂ǵ âĺt̂ér̂ńât́îv́ê t́êx́t̂ ćâń ĥél̂ṕ ŝćr̂éêń r̂éâd́êŕ ûśêŕŝ ún̂d́êŕŝt́âńd̂ t́ĥé p̂úr̂ṕôśê óf̂ t́ĥé b̂út̂t́ôń. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂éq̂úêún̂ív̂ér̂śît́ŷ.ćôḿ/r̂úl̂éŝ/áx̂é/3.1/îńp̂út̂-ím̂áĝé-âĺt̂?áp̂ṕl̂íĉát̂íôń=l̂íĝh́t̂h́ôúŝé)."
+  },
+  "lighthouse-core/audits/accessibility/input-image-alt.js | failureTitle": {
+    "message": "`<îńp̂út̂ t́ŷṕê=\"ím̂áĝé\">` êĺêḿêńt̂ś d̂ó n̂ót̂ h́âv́ê `[ál̂t́]` t̂éx̂t́"
+  },
+  "lighthouse-core/audits/accessibility/input-image-alt.js | title": {
+    "message": "`<îńp̂út̂ t́ŷṕê=\"ím̂áĝé\">` êĺêḿêńt̂ś ĥáv̂é `[âĺt̂]` t́êx́t̂"
+  },
+  "lighthouse-core/audits/accessibility/label.js | description": {
+    "message": "L̂áb̂él̂ś êńŝúr̂é t̂h́ât́ f̂ór̂ḿ ĉón̂t́r̂ól̂ś âŕê án̂ńôún̂ćêd́ p̂ŕôṕêŕl̂ý b̂ý âśŝíŝt́îv́ê t́êćĥńôĺôǵîéŝ, ĺîḱê śĉŕêén̂ ŕêád̂ér̂ś. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂éq̂úêún̂ív̂ér̂śît́ŷ.ćôḿ/r̂úl̂éŝ/áx̂é/3.1/l̂áb̂él̂?áp̂ṕl̂íĉát̂íôń=l̂íĝh́t̂h́ôúŝé)."
+  },
+  "lighthouse-core/audits/accessibility/label.js | failureTitle": {
+    "message": "F̂ór̂ḿ êĺêḿêńt̂ś d̂ó n̂ót̂ h́âv́ê áŝśôćîát̂éd̂ ĺâb́êĺŝ"
+  },
+  "lighthouse-core/audits/accessibility/label.js | title": {
+    "message": "F̂ór̂ḿ êĺêḿêńt̂ś ĥáv̂é âśŝóĉíât́êd́ l̂áb̂él̂ś"
+  },
+  "lighthouse-core/audits/accessibility/layout-table.js | description": {
+    "message": "Â t́âb́l̂é b̂éîńĝ úŝéd̂ f́ôŕ l̂áŷóût́ p̂úr̂ṕôśêś ŝh́ôúl̂d́ n̂ót̂ ín̂ćl̂úd̂é d̂át̂á êĺêḿêńt̂ś, ŝúĉh́ âś t̂h́ê t́ĥ ór̂ ćâṕt̂íôń êĺêḿêńt̂ś ôŕ t̂h́ê śûḿm̂ár̂ý ât́t̂ŕîb́ût́ê, b́êćâúŝé t̂h́îś ĉán̂ ćr̂éât́ê á ĉón̂f́ûśîńĝ éx̂ṕêŕîén̂ćê f́ôŕ ŝćr̂éêń r̂éâd́êŕ ûśêŕŝ. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êq́ûéûńîv́êŕŝít̂ý.ĉóm̂/ŕûĺêś/âx́ê/3.1/ĺâýôút̂-t́âb́l̂é?âṕp̂ĺîćât́îón̂=ĺîǵĥt́ĥóûśê)."
+  },
+  "lighthouse-core/audits/accessibility/layout-table.js | failureTitle": {
+    "message": "P̂ŕêśêńt̂át̂íôńâĺ `<t̂áb̂ĺê>` él̂ém̂én̂t́ŝ d́ô ńôt́ âv́ôíd̂ úŝín̂ǵ `<t̂h́>`, `<ĉáp̂t́îón̂>` ór̂ t́ĥé `[ŝúm̂ḿâŕŷ]` át̂t́r̂íb̂út̂é."
+  },
+  "lighthouse-core/audits/accessibility/layout-table.js | title": {
+    "message": "P̂ŕêśêńt̂át̂íôńâĺ `<t̂áb̂ĺê>` él̂ém̂én̂t́ŝ áv̂óîd́ ûśîńĝ `<t́ĥ>`, `<ćâṕt̂íôń>` ôŕ t̂h́ê `[śûḿm̂ár̂ý]` ât́t̂ŕîb́ût́ê."
+  },
+  "lighthouse-core/audits/accessibility/link-name.js | description": {
+    "message": "L̂ín̂ḱ t̂éx̂t́ (âńd̂ ál̂t́êŕn̂át̂é t̂éx̂t́ f̂ór̂ ím̂áĝéŝ, ẃĥén̂ úŝéd̂ áŝ ĺîńk̂ś) t̂h́ât́ îś d̂íŝćêŕn̂íb̂ĺê, ún̂íq̂úê, án̂d́ f̂óĉúŝáb̂ĺê ím̂ṕr̂óv̂éŝ t́ĥé n̂áv̂íĝát̂íôń êx́p̂ér̂íêńĉé f̂ór̂ śĉŕêén̂ ŕêád̂ér̂ úŝér̂ś. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂éq̂úêún̂ív̂ér̂śît́ŷ.ćôḿ/r̂úl̂éŝ/áx̂é/3.1/l̂ín̂ḱ-n̂ám̂é?âṕp̂ĺîćât́îón̂=ĺîǵĥt́ĥóûśê)."
+  },
+  "lighthouse-core/audits/accessibility/link-name.js | failureTitle": {
+    "message": "L̂ín̂ḱŝ d́ô ńôt́ ĥáv̂é â d́îśĉér̂ńîb́l̂é n̂ám̂é"
+  },
+  "lighthouse-core/audits/accessibility/link-name.js | title": {
+    "message": "L̂ín̂ḱŝ h́âv́ê á d̂íŝćêŕn̂íb̂ĺê ńâḿê"
+  },
+  "lighthouse-core/audits/accessibility/list.js | description": {
+    "message": "Ŝćr̂éêń r̂éâd́êŕŝ h́âv́ê á ŝṕêćîf́îć ŵáŷ óf̂ án̂ńôún̂ćîńĝ ĺîśt̂ś. Êńŝúr̂ín̂ǵ p̂ŕôṕêŕ l̂íŝt́ ŝt́r̂úĉt́ûŕê áîd́ŝ śĉŕêén̂ ŕêád̂ér̂ óût́p̂út̂. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êq́ûéûńîv́êŕŝít̂ý.ĉóm̂/ŕûĺêś/âx́ê/3.1/ĺîśt̂?áp̂ṕl̂íĉát̂íôń=l̂íĝh́t̂h́ôúŝé)."
+  },
+  "lighthouse-core/audits/accessibility/list.js | failureTitle": {
+    "message": "L̂íŝt́ŝ d́ô ńôt́ ĉón̂t́âín̂ ón̂ĺŷ `<ĺî>` él̂ém̂én̂t́ŝ án̂d́ ŝćr̂íp̂t́ ŝúp̂ṕôŕt̂ín̂ǵ êĺêḿêńt̂ś (`<ŝćr̂íp̂t́>` âńd̂ `<t́êḿp̂ĺât́ê>`)."
+  },
+  "lighthouse-core/audits/accessibility/list.js | title": {
+    "message": "L̂íŝt́ŝ ćôńt̂áîń ôńl̂ý `<l̂í>` êĺêḿêńt̂ś âńd̂ śĉŕîṕt̂ śûṕp̂ór̂t́îńĝ él̂ém̂én̂t́ŝ (`<śĉŕîṕt̂>` án̂d́ `<t̂ém̂ṕl̂át̂é>`)."
+  },
+  "lighthouse-core/audits/accessibility/listitem.js | description": {
+    "message": "Ŝćr̂éêń r̂éâd́êŕŝ ŕêq́ûír̂é l̂íŝt́ ît́êḿŝ (`<ĺî>`) t́ô b́ê ćôńt̂áîńêd́ ŵít̂h́îń â ṕâŕêńt̂ `<úl̂>` ór̂ `<ól̂>` t́ô b́ê án̂ńôún̂ćêd́ p̂ŕôṕêŕl̂ý. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂éq̂úêún̂ív̂ér̂śît́ŷ.ćôḿ/r̂úl̂éŝ/áx̂é/3.1/l̂íŝt́ît́êḿ?âṕp̂ĺîćât́îón̂=ĺîǵĥt́ĥóûśê)."
+  },
+  "lighthouse-core/audits/accessibility/listitem.js | failureTitle": {
+    "message": "L̂íŝt́ ît́êḿŝ (`<ĺî>`) ár̂é n̂ót̂ ćôńt̂áîńêd́ ŵít̂h́îń `<ûĺ>` ôŕ `<ôĺ>` p̂ár̂én̂t́ êĺêḿêńt̂ś."
+  },
+  "lighthouse-core/audits/accessibility/listitem.js | title": {
+    "message": "L̂íŝt́ ît́êḿŝ (`<ĺî>`) ár̂é ĉón̂t́âín̂éd̂ ẃît́ĥín̂ `<úl̂>` ór̂ `<ól̂>` ṕâŕêńt̂ él̂ém̂én̂t́ŝ"
+  },
+  "lighthouse-core/audits/accessibility/meta-refresh.js | description": {
+    "message": "Ûśêŕŝ d́ô ńôt́ êx́p̂éĉt́ â ṕâǵê t́ô ŕêf́r̂éŝh́ âút̂óm̂át̂íĉál̂ĺŷ, án̂d́ d̂óîńĝ śô ẃîĺl̂ ḿôv́ê f́ôćûś b̂áĉḱ t̂ó t̂h́ê t́ôṕ ôf́ t̂h́ê ṕâǵê. T́ĥíŝ ḿâý ĉŕêát̂é â f́r̂úŝt́r̂át̂ín̂ǵ ôŕ ĉón̂f́ûśîńĝ éx̂ṕêŕîén̂ćê. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êq́ûéûńîv́êŕŝít̂ý.ĉóm̂/ŕûĺêś/âx́ê/3.1/ḿêt́â-ŕêf́r̂éŝh́?âṕp̂ĺîćât́îón̂=ĺîǵĥt́ĥóûśê)."
+  },
+  "lighthouse-core/audits/accessibility/meta-refresh.js | failureTitle": {
+    "message": "T̂h́ê d́ôćûḿêńt̂ úŝéŝ `<ḿêt́â h́t̂t́p̂-éq̂úîv́=\"r̂éf̂ŕêśĥ\">`"
+  },
+  "lighthouse-core/audits/accessibility/meta-refresh.js | title": {
+    "message": "T̂h́ê d́ôćûḿêńt̂ d́ôéŝ ńôt́ ûśê `<ḿêt́â h́t̂t́p̂-éq̂úîv́=\"r̂éf̂ŕêśĥ\">`"
+  },
+  "lighthouse-core/audits/accessibility/meta-viewport.js | description": {
+    "message": "D̂íŝáb̂ĺîńĝ źôóm̂ín̂ǵ îś p̂ŕôb́l̂ém̂át̂íĉ f́ôŕ ûśêŕŝ ẃît́ĥ ĺôẃ v̂íŝíôń ŵh́ô ŕêĺŷ ón̂ śĉŕêén̂ ḿâǵn̂íf̂íĉát̂íôń t̂ó p̂ŕôṕêŕl̂ý ŝéê t́ĥé ĉón̂t́êńt̂ś ôf́ â ẃêb́ p̂áĝé. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂éq̂úêún̂ív̂ér̂śît́ŷ.ćôḿ/r̂úl̂éŝ/áx̂é/3.1/m̂ét̂á-v̂íêẃp̂ór̂t́?âṕp̂ĺîćât́îón̂=ĺîǵĥt́ĥóûśê)."
+  },
+  "lighthouse-core/audits/accessibility/meta-viewport.js | failureTitle": {
+    "message": "`[ûśêŕ-ŝćâĺâb́l̂é=\"n̂ó\"]` îś ûśêd́ îń t̂h́ê `<ḿêt́â ńâḿê=\"v́îéŵṕôŕt̂\">` él̂ém̂én̂t́ ôŕ t̂h́ê `[ḿâx́îḿûḿ-ŝćâĺê]` át̂t́r̂íb̂út̂é îś l̂éŝś t̂h́âń 5."
+  },
+  "lighthouse-core/audits/accessibility/meta-viewport.js | title": {
+    "message": "`[ûśêŕ-ŝćâĺâb́l̂é=\"n̂ó\"]` îś n̂ót̂ úŝéd̂ ín̂ t́ĥé `<m̂ét̂á n̂ám̂é=\"v̂íêẃp̂ór̂t́\">` êĺêḿêńt̂ án̂d́ t̂h́ê `[ḿâx́îḿûḿ-ŝćâĺê]` át̂t́r̂íb̂út̂é îś n̂ót̂ ĺêśŝ t́ĥán̂ 5."
+  },
+  "lighthouse-core/audits/accessibility/object-alt.js | description": {
+    "message": "Ŝćr̂éêń r̂éâd́êŕŝ ćâńn̂ót̂ t́r̂án̂śl̂át̂é n̂ón̂-t́êx́t̂ ćôńt̂én̂t́. Âd́d̂ín̂ǵ âĺt̂ t́êx́t̂ t́ô `<ób̂j́êćt̂>` él̂ém̂én̂t́ŝ h́êĺp̂ś ŝćr̂éêń r̂éâd́êŕŝ ćôńv̂éŷ ḿêán̂ín̂ǵ t̂ó ûśêŕŝ. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êq́ûéûńîv́êŕŝít̂ý.ĉóm̂/ŕûĺêś/âx́ê/3.1/ób̂j́êćt̂-ál̂t́?âṕp̂ĺîćât́îón̂=ĺîǵĥt́ĥóûśê)."
+  },
+  "lighthouse-core/audits/accessibility/object-alt.js | failureTitle": {
+    "message": "`<ôb́ĵéĉt́>` êĺêḿêńt̂ś d̂ó n̂ót̂ h́âv́ê `[ál̂t́]` t̂éx̂t́"
+  },
+  "lighthouse-core/audits/accessibility/object-alt.js | title": {
+    "message": "`<ôb́ĵéĉt́>` êĺêḿêńt̂ś ĥáv̂é `[âĺt̂]` t́êx́t̂"
+  },
+  "lighthouse-core/audits/accessibility/tabindex.js | description": {
+    "message": "Â v́âĺûé ĝŕêát̂ér̂ t́ĥán̂ 0 ím̂ṕl̂íêś âń êx́p̂ĺîćît́ n̂áv̂íĝát̂íôń ôŕd̂ér̂ín̂ǵ. Âĺt̂h́ôúĝh́ t̂éĉh́n̂íĉál̂ĺŷ v́âĺîd́, t̂h́îś ôf́t̂én̂ ćr̂éât́êś f̂ŕûśt̂ŕât́îńĝ éx̂ṕêŕîén̂ćêś f̂ór̂ úŝér̂ś ŵh́ô ŕêĺŷ ón̂ áŝśîśt̂ív̂é t̂éĉh́n̂ól̂óĝíêś. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂éq̂úêún̂ív̂ér̂śît́ŷ.ćôḿ/r̂úl̂éŝ/áx̂é/3.1/t̂áb̂ín̂d́êx́?âṕp̂ĺîćât́îón̂=ĺîǵĥt́ĥóûśê)."
+  },
+  "lighthouse-core/audits/accessibility/tabindex.js | failureTitle": {
+    "message": "Ŝóm̂é êĺêḿêńt̂ś ĥáv̂é â `[t́âb́îńd̂éx̂]` v́âĺûé ĝŕêát̂ér̂ t́ĥán̂ 0"
+  },
+  "lighthouse-core/audits/accessibility/tabindex.js | title": {
+    "message": "N̂ó êĺêḿêńt̂ h́âś â `[t́âb́îńd̂éx̂]` v́âĺûé ĝŕêát̂ér̂ t́ĥán̂ 0"
+  },
+  "lighthouse-core/audits/accessibility/td-headers-attr.js | description": {
+    "message": "Ŝćr̂éêń r̂éâd́êŕŝ h́âv́ê f́êát̂úr̂éŝ t́ô ḿâḱê ńâv́îǵât́îńĝ t́âb́l̂éŝ éâśîér̂. Én̂śûŕîńĝ `<t́d̂>` ćêĺl̂ś ûśîńĝ t́ĥé `[ĥéâd́êŕŝ]` át̂t́r̂íb̂út̂é ôńl̂ý r̂éf̂ér̂ t́ô ót̂h́êŕ ĉél̂ĺŝ ín̂ t́ĥé ŝám̂é t̂áb̂ĺê ḿâý îḿp̂ŕôv́ê t́ĥé êx́p̂ér̂íêńĉé f̂ór̂ śĉŕêén̂ ŕêád̂ér̂ úŝér̂ś. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂éq̂úêún̂ív̂ér̂śît́ŷ.ćôḿ/r̂úl̂éŝ/áx̂é/3.1/t̂d́-ĥéâd́êŕŝ-át̂t́r̂?áp̂ṕl̂íĉát̂íôń=l̂íĝh́t̂h́ôúŝé)."
+  },
+  "lighthouse-core/audits/accessibility/td-headers-attr.js | failureTitle": {
+    "message": "Ĉél̂ĺŝ ín̂ á `<t̂áb̂ĺê>` él̂ém̂én̂t́ t̂h́ât́ ûśê t́ĥé `[ĥéâd́êŕŝ]` át̂t́r̂íb̂út̂é r̂éf̂ér̂ś t̂ó ôt́ĥér̂ ćêĺl̂ś ôf́ t̂h́ât́ ŝám̂é t̂áb̂ĺê."
+  },
+  "lighthouse-core/audits/accessibility/td-headers-attr.js | title": {
+    "message": "Ĉél̂ĺŝ ín̂ á `<t̂áb̂ĺê>` él̂ém̂én̂t́ t̂h́ât́ ûśê t́ĥé `[ĥéâd́êŕŝ]` át̂t́r̂íb̂út̂é ôńl̂ý r̂éf̂ér̂ t́ô ót̂h́êŕ ĉél̂ĺŝ óf̂ t́ĥát̂ śâḿê t́âb́l̂é."
+  },
+  "lighthouse-core/audits/accessibility/th-has-data-cells.js | description": {
+    "message": "Ŝćr̂éêń r̂éâd́êŕŝ h́âv́ê f́êát̂úr̂éŝ t́ô ḿâḱê ńâv́îǵât́îńĝ t́âb́l̂éŝ éâśîér̂. Én̂śûŕîńĝ t́âb́l̂é ĥéâd́êŕŝ ál̂ẃâýŝ ŕêf́êŕ t̂ó ŝóm̂é ŝét̂ óf̂ ćêĺl̂ś m̂áŷ ím̂ṕr̂óv̂é t̂h́ê éx̂ṕêŕîén̂ćê f́ôŕ ŝćr̂éêń r̂éâd́êŕ ûśêŕŝ. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êq́ûéûńîv́êŕŝít̂ý.ĉóm̂/ŕûĺêś/âx́ê/3.1/t́ĥ-h́âś-d̂át̂á-ĉél̂ĺŝ?áp̂ṕl̂íĉát̂íôń=l̂íĝh́t̂h́ôúŝé)."
+  },
+  "lighthouse-core/audits/accessibility/th-has-data-cells.js | failureTitle": {
+    "message": "`<t̂h́>` êĺêḿêńt̂ś âńd̂ él̂ém̂én̂t́ŝ ẃît́ĥ `[ŕôĺê=\"ćôĺûḿn̂h́êád̂ér̂\"/\"ŕôẃĥéâd́êŕ\"]` d̂ó n̂ót̂ h́âv́ê d́ât́â ćêĺl̂ś t̂h́êý d̂éŝćr̂íb̂é."
+  },
+  "lighthouse-core/audits/accessibility/th-has-data-cells.js | title": {
+    "message": "`<t̂h́>` êĺêḿêńt̂ś âńd̂ él̂ém̂én̂t́ŝ ẃît́ĥ `[ŕôĺê=\"ćôĺûḿn̂h́êád̂ér̂\"/\"ŕôẃĥéâd́êŕ\"]` ĥáv̂é d̂át̂á ĉél̂ĺŝ t́ĥéŷ d́êśĉŕîb́ê."
+  },
+  "lighthouse-core/audits/accessibility/valid-lang.js | description": {
+    "message": "Ŝṕêćîf́ŷín̂ǵ â v́âĺîd́ [B̂ĆP̂ 47 ĺâńĝúâǵê](h́t̂t́p̂ś://ŵẃŵ.ẃ3.ôŕĝ/Ín̂t́êŕn̂át̂íôńâĺ/q̂úêśt̂íôńŝ/q́â-ćĥóôśîńĝ-ĺâńĝúâǵê-t́âǵŝ#q́ûéŝt́îón̂) ón̂ él̂ém̂én̂t́ŝ h́êĺp̂ś êńŝúr̂é t̂h́ât́ t̂éx̂t́ îś p̂ŕôńôún̂ćêd́ ĉór̂ŕêćt̂ĺŷ b́ŷ á ŝćr̂éêń r̂éâd́êŕ. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂éq̂úêún̂ív̂ér̂śît́ŷ.ćôḿ/r̂úl̂éŝ/áx̂é/3.1/v̂ál̂íd̂-ĺâńĝ?áp̂ṕl̂íĉát̂íôń=l̂íĝh́t̂h́ôúŝé)."
+  },
+  "lighthouse-core/audits/accessibility/valid-lang.js | failureTitle": {
+    "message": "`[l̂án̂ǵ]` ât́t̂ŕîb́ût́êś d̂ó n̂ót̂ h́âv́ê á v̂ál̂íd̂ v́âĺûé"
+  },
+  "lighthouse-core/audits/accessibility/valid-lang.js | title": {
+    "message": "`[l̂án̂ǵ]` ât́t̂ŕîb́ût́êś ĥáv̂é â v́âĺîd́ v̂ál̂úê"
+  },
+  "lighthouse-core/audits/accessibility/video-caption.js | description": {
+    "message": "Ŵh́êń â v́îd́êó p̂ŕôv́îd́êś â ćâṕt̂íôń ît́ îś êáŝíêŕ f̂ór̂ d́êáf̂ án̂d́ ĥéâŕîńĝ ím̂ṕâír̂éd̂ úŝér̂ś t̂ó âćĉéŝś ît́ŝ ín̂f́ôŕm̂át̂íôń. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂éq̂úêún̂ív̂ér̂śît́ŷ.ćôḿ/r̂úl̂éŝ/áx̂é/3.1/v̂íd̂éô-ćâṕt̂íôń?âṕp̂ĺîćât́îón̂=ĺîǵĥt́ĥóûśê)."
+  },
+  "lighthouse-core/audits/accessibility/video-caption.js | failureTitle": {
+    "message": "`<v̂íd̂éô>` él̂ém̂én̂t́ŝ d́ô ńôt́ ĉón̂t́âín̂ á `<t̂ŕâćk̂>` él̂ém̂én̂t́ ŵít̂h́ `[k̂ín̂d́=\"ĉáp̂t́îón̂ś\"]`."
+  },
+  "lighthouse-core/audits/accessibility/video-caption.js | title": {
+    "message": "`<v̂íd̂éô>` él̂ém̂én̂t́ŝ ćôńt̂áîń â `<t́r̂áĉḱ>` êĺêḿêńt̂ ẃît́ĥ `[ḱîńd̂=\"ćâṕt̂íôńŝ\"]`"
+  },
+  "lighthouse-core/audits/accessibility/video-description.js | description": {
+    "message": "Âúd̂íô d́êśĉŕîṕt̂íôńŝ ṕr̂óv̂íd̂é r̂él̂év̂án̂t́ îńf̂ór̂ḿât́îón̂ f́ôŕ v̂íd̂éôś t̂h́ât́ d̂íâĺôǵûé ĉán̂ńôt́, ŝúĉh́ âś f̂áĉíâĺ êx́p̂ŕêśŝíôńŝ án̂d́ ŝćêńêś. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂éq̂úêún̂ív̂ér̂śît́ŷ.ćôḿ/r̂úl̂éŝ/áx̂é/3.1/v̂íd̂éô-d́êśĉŕîṕt̂íôń?âṕp̂ĺîćât́îón̂=ĺîǵĥt́ĥóûśê)."
+  },
+  "lighthouse-core/audits/accessibility/video-description.js | failureTitle": {
+    "message": "`<v̂íd̂éô>` él̂ém̂én̂t́ŝ d́ô ńôt́ ĉón̂t́âín̂ á `<t̂ŕâćk̂>` él̂ém̂én̂t́ ŵít̂h́ `[k̂ín̂d́=\"d̂éŝćr̂íp̂t́îón̂\"]`."
+  },
+  "lighthouse-core/audits/accessibility/video-description.js | title": {
+    "message": "`<v̂íd̂éô>` él̂ém̂én̂t́ŝ ćôńt̂áîń â `<t́r̂áĉḱ>` êĺêḿêńt̂ ẃît́ĥ `[ḱîńd̂=\"d́êśĉŕîṕt̂íôń\"]`"
+  },
+  "lighthouse-core/audits/apple-touch-icon.js | description": {
+    "message": "F̂ór̂ íd̂éâĺ âṕp̂éâŕâńĉé ôń îÓŜ ẃĥén̂ úŝér̂ś âd́d̂ t́ô t́ĥé ĥóm̂é ŝćr̂éêń, d̂éf̂ín̂é âń âṕp̂ĺê-t́ôúĉh́-îćôń. Ît́ m̂úŝt́ p̂óîńt̂ t́ô á n̂ón̂-t́r̂án̂śp̂ár̂én̂t́ 192p̂x́ (ôŕ 180p̂x́) ŝq́ûár̂é P̂ŃĜ. [Ĺêár̂ń M̂ór̂é](ĥt́t̂ṕŝ://d́êv́êĺôṕêŕŝ.ǵôóĝĺê.ćôḿ/ŵéb̂/f́ûńd̂ám̂én̂t́âĺŝ/d́êśîǵn̂-án̂d́-ûx́/b̂ŕôẃŝér̂-ćûśt̂óm̂íẑát̂íôń/)."
+  },
+  "lighthouse-core/audits/apple-touch-icon.js | failureTitle": {
+    "message": "D̂óêś n̂ót̂ ṕr̂óv̂íd̂é â v́âĺîd́ `âṕp̂ĺê-t́ôúĉh́-îćôń`"
+  },
+  "lighthouse-core/audits/apple-touch-icon.js | precomposedWarning": {
+    "message": "`âṕp̂ĺê-t́ôúĉh́-îćôń-p̂ŕêćôḿp̂óŝéd̂` íŝ óût́ ôf́ d̂át̂é; `âṕp̂ĺê-t́ôúĉh́-îćôń` îś p̂ŕêf́êŕr̂éd̂."
+  },
+  "lighthouse-core/audits/apple-touch-icon.js | title": {
+    "message": "P̂ŕôv́îd́êś â v́âĺîd́ `âṕp̂ĺê-t́ôúĉh́-îćôń`"
+  },
+  "lighthouse-core/audits/bootup-time.js | chromeExtensionsWarning": {
+    "message": "Ĉh́r̂óm̂é êx́t̂én̂śîón̂ś n̂éĝát̂ív̂él̂ý âf́f̂éĉt́êd́ t̂h́îś p̂áĝé'ŝ ĺôád̂ ṕêŕf̂ór̂ḿâńĉé. T̂ŕŷ áûd́ît́îńĝ t́ĥé p̂áĝé îń îńĉóĝńît́ô ḿôd́ê ór̂ f́r̂óm̂ á Ĉh́r̂óm̂é p̂ŕôf́îĺê ẃît́ĥóût́ êx́t̂én̂śîón̂ś."
+  },
+  "lighthouse-core/audits/bootup-time.js | columnScriptEval": {
+    "message": "Ŝćr̂íp̂t́ Êv́âĺûát̂íôń"
+  },
+  "lighthouse-core/audits/bootup-time.js | columnScriptParse": {
+    "message": "Ŝćr̂íp̂t́ P̂ár̂śê"
+  },
+  "lighthouse-core/audits/bootup-time.js | columnTotal": {
+    "message": "T̂ót̂ál̂ ĆP̂Ú T̂ím̂é"
+  },
+  "lighthouse-core/audits/bootup-time.js | description": {
+    "message": "Ĉón̂śîd́êŕ r̂éd̂úĉín̂ǵ t̂h́ê t́îḿê śp̂én̂t́ p̂ár̂śîńĝ, ćôḿp̂íl̂ín̂ǵ, âńd̂ éx̂éĉút̂ín̂ǵ ĴŚ. Ŷóû ḿâý f̂ín̂d́ d̂él̂ív̂ér̂ín̂ǵ ŝḿâĺl̂ér̂ J́Ŝ ṕâýl̂óâd́ŝ h́êĺp̂ś ŵít̂h́ t̂h́îś. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂év̂él̂óp̂ér̂ś.ĝóôǵl̂é.ĉóm̂/ẃêb́/t̂óôĺŝ/ĺîǵĥt́ĥóûśê/áûd́ît́ŝ/b́ôót̂úp̂)."
+  },
+  "lighthouse-core/audits/bootup-time.js | failureTitle": {
+    "message": "R̂éd̂úĉé Ĵáv̂áŜćr̂íp̂t́ êx́êćût́îón̂ t́îḿê"
+  },
+  "lighthouse-core/audits/bootup-time.js | title": {
+    "message": "Ĵáv̂áŜćr̂íp̂t́ êx́êćût́îón̂ t́îḿê"
+  },
+  "lighthouse-core/audits/byte-efficiency/efficient-animated-content.js | description": {
+    "message": "L̂ár̂ǵê ǴÎF́ŝ ár̂é îńêf́f̂íĉíêńt̂ f́ôŕ d̂él̂ív̂ér̂ín̂ǵ âńîḿât́êd́ ĉón̂t́êńt̂. Ćôńŝíd̂ér̂ úŝín̂ǵ M̂ṔÊǴ4/Ŵéb̂Ḿ v̂íd̂éôś f̂ór̂ án̂ím̂át̂íôńŝ án̂d́ P̂ŃĜ/Ẃêb́P̂ f́ôŕ ŝt́ât́îć îḿâǵêś îńŝt́êád̂ óf̂ ǴÎF́ t̂ó ŝáv̂é n̂ét̂ẃôŕk̂ b́ŷt́êś. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂év̂él̂óp̂ér̂ś.ĝóôǵl̂é.ĉóm̂/ẃêb́/f̂ún̂d́âḿêńt̂ál̂ś/p̂ér̂f́ôŕm̂án̂ćê/óp̂t́îḿîźîńĝ-ćôńt̂én̂t́-êf́f̂íĉíêńĉý/r̂ép̂ĺâćê-án̂ím̂át̂éd̂-ǵîf́ŝ-ẃît́ĥ-v́îd́êó/)"
+  },
+  "lighthouse-core/audits/byte-efficiency/efficient-animated-content.js | title": {
+    "message": "Ûśê v́îd́êó f̂ór̂ḿât́ŝ f́ôŕ âńîḿât́êd́ ĉón̂t́êńt̂"
+  },
+  "lighthouse-core/audits/byte-efficiency/offscreen-images.js | description": {
+    "message": "Ĉón̂śîd́êŕ l̂áẑý-l̂óâd́îńĝ óf̂f́ŝćr̂éêń âńd̂ h́îd́d̂én̂ ím̂áĝéŝ áf̂t́êŕ âĺl̂ ćr̂ít̂íĉál̂ ŕêśôúr̂ćêś ĥáv̂é f̂ín̂íŝh́êd́ l̂óâd́îńĝ t́ô ĺôẃêŕ t̂ím̂é t̂ó îńt̂ér̂áĉt́îv́ê. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êv́êĺôṕêŕŝ.ǵôóĝĺê.ćôḿ/ŵéb̂/t́ôól̂ś/l̂íĝh́t̂h́ôúŝé/âúd̂ít̂ś/ôf́f̂śĉŕêén̂-ím̂áĝéŝ)."
+  },
+  "lighthouse-core/audits/byte-efficiency/offscreen-images.js | title": {
+    "message": "D̂éf̂ér̂ óf̂f́ŝćr̂éêń îḿâǵêś"
+  },
+  "lighthouse-core/audits/byte-efficiency/render-blocking-resources.js | description": {
+    "message": "R̂éŝóûŕĉéŝ ár̂é b̂ĺôćk̂ín̂ǵ t̂h́ê f́îŕŝt́ p̂áîńt̂ óf̂ ýôúr̂ ṕâǵê. Ćôńŝíd̂ér̂ d́êĺîv́êŕîńĝ ćr̂ít̂íĉál̂ J́Ŝ/ĆŜŚ îńl̂ín̂é âńd̂ d́êf́êŕr̂ín̂ǵ âĺl̂ ńôń-ĉŕît́îćâĺ ĴŚ/ŝt́ŷĺêś. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂év̂él̂óp̂ér̂ś.ĝóôǵl̂é.ĉóm̂/ẃêb́/t̂óôĺŝ/ĺîǵĥt́ĥóûśê/áûd́ît́ŝ/b́l̂óĉḱîńĝ-ŕêśôúr̂ćêś)."
+  },
+  "lighthouse-core/audits/byte-efficiency/render-blocking-resources.js | title": {
+    "message": "Êĺîḿîńât́ê ŕêńd̂ér̂-b́l̂óĉḱîńĝ ŕêśôúr̂ćêś"
+  },
+  "lighthouse-core/audits/byte-efficiency/total-byte-weight.js | description": {
+    "message": "L̂ár̂ǵê ńêt́ŵór̂ḱ p̂áŷĺôád̂ś ĉóŝt́ ûśêŕŝ ŕêál̂ ḿôńêý âńd̂ ár̂é ĥíĝh́l̂ý ĉór̂ŕêĺât́êd́ ŵít̂h́ l̂ón̂ǵ l̂óâd́ t̂ím̂éŝ. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êv́êĺôṕêŕŝ.ǵôóĝĺê.ćôḿ/ŵéb̂/t́ôól̂ś/l̂íĝh́t̂h́ôúŝé/âúd̂ít̂ś/n̂ét̂ẃôŕk̂-ṕâýl̂óâd́ŝ)."
+  },
+  "lighthouse-core/audits/byte-efficiency/total-byte-weight.js | displayValue": {
+    "message": "T̂ót̂ál̂ śîźê ẃâś {totalBytes, number, bytes} K̂B́"
+  },
+  "lighthouse-core/audits/byte-efficiency/total-byte-weight.js | failureTitle": {
+    "message": "Âv́ôíd̂ én̂ór̂ḿôúŝ ńêt́ŵór̂ḱ p̂áŷĺôád̂ś"
+  },
+  "lighthouse-core/audits/byte-efficiency/total-byte-weight.js | title": {
+    "message": "Âv́ôíd̂ś êńôŕm̂óûś n̂ét̂ẃôŕk̂ ṕâýl̂óâd́ŝ"
+  },
+  "lighthouse-core/audits/byte-efficiency/unminified-css.js | description": {
+    "message": "M̂ín̂íf̂ýîńĝ ĆŜŚ f̂íl̂éŝ ćâń r̂éd̂úĉé n̂ét̂ẃôŕk̂ ṕâýl̂óâd́ ŝíẑéŝ. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êv́êĺôṕêŕŝ.ǵôóĝĺê.ćôḿ/ŵéb̂/t́ôól̂ś/l̂íĝh́t̂h́ôúŝé/âúd̂ít̂ś/m̂ín̂íf̂ý-ĉśŝ)."
+  },
+  "lighthouse-core/audits/byte-efficiency/unminified-css.js | title": {
+    "message": "M̂ín̂íf̂ý ĈŚŜ"
+  },
+  "lighthouse-core/audits/byte-efficiency/unminified-javascript.js | description": {
+    "message": "M̂ín̂íf̂ýîńĝ J́âv́âŚĉŕîṕt̂ f́îĺêś ĉán̂ ŕêd́ûćê ṕâýl̂óâd́ ŝíẑéŝ án̂d́ ŝćr̂íp̂t́ p̂ár̂śê t́îḿê. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êv́êĺôṕêŕŝ.ǵôóĝĺê.ćôḿ/ŝṕêéd̂/d́ôćŝ/ín̂śîǵĥt́ŝ/Ḿîńîf́ŷŔêśôúr̂ćêś)."
+  },
+  "lighthouse-core/audits/byte-efficiency/unminified-javascript.js | title": {
+    "message": "M̂ín̂íf̂ý Ĵáv̂áŜćr̂íp̂t́"
+  },
+  "lighthouse-core/audits/byte-efficiency/unused-css-rules.js | description": {
+    "message": "R̂ém̂óv̂é d̂éâd́ r̂úl̂éŝ f́r̂óm̂ śt̂ýl̂éŝh́êét̂ś âńd̂ d́êf́êŕ t̂h́ê ĺôád̂ín̂ǵ ôf́ ĈŚŜ ńôt́ ûśêd́ f̂ór̂ áb̂óv̂é-t̂h́ê-f́ôĺd̂ ćôńt̂én̂t́ t̂ó r̂éd̂úĉé ûńn̂éĉéŝśâŕŷ b́ŷt́êś ĉón̂śûḿêd́ b̂ý n̂ét̂ẃôŕk̂ áĉt́îv́ît́ŷ. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êv́êĺôṕêŕŝ.ǵôóĝĺê.ćôḿ/ŵéb̂/t́ôól̂ś/l̂íĝh́t̂h́ôúŝé/âúd̂ít̂ś/ûńûśêd́-ĉśŝ)."
+  },
+  "lighthouse-core/audits/byte-efficiency/unused-css-rules.js | title": {
+    "message": "R̂ém̂óv̂é ûńûśêd́ ĈŚŜ"
+  },
+  "lighthouse-core/audits/byte-efficiency/unused-javascript.js | description": {
+    "message": "R̂ém̂óv̂é ûńûśêd́ Ĵáv̂áŜćr̂íp̂t́ t̂ó r̂éd̂úĉé b̂ýt̂éŝ ćôńŝúm̂éd̂ b́ŷ ńêt́ŵór̂ḱ âćt̂ív̂ít̂ý."
+  },
+  "lighthouse-core/audits/byte-efficiency/unused-javascript.js | title": {
+    "message": "R̂ém̂óv̂é ûńûśêd́ Ĵáv̂áŜćr̂íp̂t́"
+  },
+  "lighthouse-core/audits/byte-efficiency/uses-long-cache-ttl.js | description": {
+    "message": "Â ĺôńĝ ćâćĥé l̂íf̂ét̂ím̂é ĉán̂ śp̂éêd́ ûṕ r̂ép̂éât́ v̂íŝít̂ś t̂ó ŷóûŕ p̂áĝé. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂év̂él̂óp̂ér̂ś.ĝóôǵl̂é.ĉóm̂/ẃêb́/t̂óôĺŝ/ĺîǵĥt́ĥóûśê/áûd́ît́ŝ/ćâćĥé-p̂ól̂íĉý)."
+  },
+  "lighthouse-core/audits/byte-efficiency/uses-long-cache-ttl.js | displayValue": {
+    "message": "{itemCount, plural,\n    =1 {1 r̂éŝóûŕĉé f̂óûńd̂}\n    other {# ŕêśôúr̂ćêś f̂óûńd̂}\n    }"
+  },
+  "lighthouse-core/audits/byte-efficiency/uses-long-cache-ttl.js | failureTitle": {
+    "message": "Ŝér̂v́ê śt̂át̂íĉ áŝśêt́ŝ ẃît́ĥ án̂ éf̂f́îćîén̂t́ ĉáĉh́ê ṕôĺîćŷ"
+  },
+  "lighthouse-core/audits/byte-efficiency/uses-long-cache-ttl.js | title": {
+    "message": "Ûśêś êf́f̂íĉíêńt̂ ćâćĥé p̂ól̂íĉý ôń ŝt́ât́îć âśŝét̂ś"
+  },
+  "lighthouse-core/audits/byte-efficiency/uses-optimized-images.js | description": {
+    "message": "Ôṕt̂ím̂íẑéd̂ ím̂áĝéŝ ĺôád̂ f́âśt̂ér̂ án̂d́ ĉón̂śûḿê ĺêśŝ ćêĺl̂úl̂ár̂ d́ât́â. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êv́êĺôṕêŕŝ.ǵôóĝĺê.ćôḿ/ŵéb̂/t́ôól̂ś/l̂íĝh́t̂h́ôúŝé/âúd̂ít̂ś/ôṕt̂ím̂íẑé-îḿâǵêś)."
+  },
+  "lighthouse-core/audits/byte-efficiency/uses-optimized-images.js | title": {
+    "message": "Êf́f̂íĉíêńt̂ĺŷ én̂ćôd́ê ím̂áĝéŝ"
+  },
+  "lighthouse-core/audits/byte-efficiency/uses-responsive-images.js | description": {
+    "message": "Ŝér̂v́ê ím̂áĝéŝ t́ĥát̂ ár̂é âṕp̂ŕôṕr̂íât́êĺŷ-śîźêd́ t̂ó ŝáv̂é ĉél̂ĺûĺâŕ d̂át̂á âńd̂ ím̂ṕr̂óv̂é l̂óâd́ t̂ím̂é. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂év̂él̂óp̂ér̂ś.ĝóôǵl̂é.ĉóm̂/ẃêb́/t̂óôĺŝ/ĺîǵĥt́ĥóûśê/áûd́ît́ŝ/óv̂ér̂śîźêd́-îḿâǵêś)."
+  },
+  "lighthouse-core/audits/byte-efficiency/uses-responsive-images.js | title": {
+    "message": "P̂ŕôṕêŕl̂ý ŝíẑé îḿâǵêś"
+  },
+  "lighthouse-core/audits/byte-efficiency/uses-text-compression.js | description": {
+    "message": "T̂éx̂t́-b̂áŝéd̂ ŕêśôúr̂ćêś ŝh́ôúl̂d́ b̂é ŝér̂v́êd́ ŵít̂h́ ĉóm̂ṕr̂éŝśîón̂ (ǵẑíp̂, d́êf́l̂át̂é ôŕ b̂ŕôt́l̂í) t̂ó m̂ín̂ím̂íẑé t̂ót̂ál̂ ńêt́ŵór̂ḱ b̂ýt̂éŝ. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êv́êĺôṕêŕŝ.ǵôóĝĺê.ćôḿ/ŵéb̂/t́ôól̂ś/l̂íĝh́t̂h́ôúŝé/âúd̂ít̂ś/t̂éx̂t́-ĉóm̂ṕr̂éŝśîón̂)."
+  },
+  "lighthouse-core/audits/byte-efficiency/uses-text-compression.js | title": {
+    "message": "Êńâb́l̂é t̂éx̂t́ ĉóm̂ṕr̂éŝśîón̂"
+  },
+  "lighthouse-core/audits/byte-efficiency/uses-webp-images.js | description": {
+    "message": "Îḿâǵê f́ôŕm̂át̂ś l̂ík̂é ĴṔÊǴ 2000, ĴṔÊǴ X̂Ŕ, âńd̂ Ẃêb́P̂ óf̂t́êń p̂ŕôv́îd́ê b́êt́t̂ér̂ ćôḿp̂ŕêśŝíôń t̂h́âń P̂ŃĜ ór̂ J́P̂ÉĜ, ẃĥíĉh́ m̂éâńŝ f́âśt̂ér̂ d́ôẃn̂ĺôád̂ś âńd̂ ĺêśŝ d́ât́â ćôńŝúm̂ṕt̂íôń. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂év̂él̂óp̂ér̂ś.ĝóôǵl̂é.ĉóm̂/ẃêb́/t̂óôĺŝ/ĺîǵĥt́ĥóûśê/áûd́ît́ŝ/ẃêb́p̂)."
+  },
+  "lighthouse-core/audits/byte-efficiency/uses-webp-images.js | title": {
+    "message": "Ŝér̂v́ê ím̂áĝéŝ ín̂ ńêx́t̂-ǵêń f̂ór̂ḿât́ŝ"
+  },
+  "lighthouse-core/audits/critical-request-chains.js | description": {
+    "message": "T̂h́ê Ćr̂ít̂íĉál̂ Ŕêq́ûéŝt́ Ĉh́âín̂ś b̂él̂óŵ śĥóŵ ýôú ŵh́ât́ r̂éŝóûŕĉéŝ ár̂é l̂óâd́êd́ ŵít̂h́ â h́îǵĥ ṕr̂íôŕît́ŷ. Ćôńŝíd̂ér̂ ŕêd́ûćîńĝ t́ĥé l̂én̂ǵt̂h́ ôf́ ĉh́âín̂ś, r̂éd̂úĉín̂ǵ t̂h́ê d́ôẃn̂ĺôád̂ śîźê óf̂ ŕêśôúr̂ćêś, ôŕ d̂éf̂ér̂ŕîńĝ t́ĥé d̂óŵńl̂óâd́ ôf́ ûńn̂éĉéŝśâŕŷ ŕêśôúr̂ćêś t̂ó îḿp̂ŕôv́ê ṕâǵê ĺôád̂. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êv́êĺôṕêŕŝ.ǵôóĝĺê.ćôḿ/ŵéb̂/t́ôól̂ś/l̂íĝh́t̂h́ôúŝé/âúd̂ít̂ś/ĉŕît́îćâĺ-r̂éq̂úêśt̂-ćĥáîńŝ)."
+  },
+  "lighthouse-core/audits/critical-request-chains.js | displayValue": {
+    "message": "{itemCount, plural,\n    =1 {1 ĉh́âín̂ f́ôún̂d́}\n    other {# ĉh́âín̂ś f̂óûńd̂}\n    }"
+  },
+  "lighthouse-core/audits/critical-request-chains.js | title": {
+    "message": "M̂ín̂ím̂íẑé Ĉŕît́îćâĺ R̂éq̂úêśt̂ś D̂ép̂t́ĥ"
+  },
+  "lighthouse-core/audits/deprecations.js | columnDeprecate": {
+    "message": "D̂ép̂ŕêćât́îón̂ / Ẃâŕn̂ín̂ǵ"
+  },
+  "lighthouse-core/audits/deprecations.js | columnLine": {
+    "message": "L̂ín̂é"
+  },
+  "lighthouse-core/audits/deprecations.js | description": {
+    "message": "D̂ép̂ŕêćât́êd́ ÂṔÎś ŵíl̂ĺ êv́êńt̂úâĺl̂ý b̂é r̂ém̂óv̂éd̂ f́r̂óm̂ t́ĥé b̂ŕôẃŝér̂. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://ẃŵẃ.ĉh́r̂óm̂éŝt́ât́ûś.ĉóm̂/f́êát̂úr̂éŝ#d́êṕr̂éĉát̂éd̂)."
+  },
+  "lighthouse-core/audits/deprecations.js | displayValue": {
+    "message": "{itemCount, plural,\n    =1 {1 ŵár̂ńîńĝ f́ôún̂d́}\n    other {# ŵár̂ńîńĝś f̂óûńd̂}\n    }"
+  },
+  "lighthouse-core/audits/deprecations.js | failureTitle": {
+    "message": "Ûśêś d̂ép̂ŕêćât́êd́ ÂṔÎś"
+  },
+  "lighthouse-core/audits/deprecations.js | title": {
+    "message": "Âv́ôíd̂ś d̂ép̂ŕêćât́êd́ ÂṔÎś"
+  },
+  "lighthouse-core/audits/dobetterweb/appcache-manifest.js | description": {
+    "message": "Âṕp̂ĺîćât́îón̂ Ćâćĥé îś d̂ép̂ŕêćât́êd́. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂év̂él̂óp̂ér̂ś.ĝóôǵl̂é.ĉóm̂/ẃêb́/t̂óôĺŝ/ĺîǵĥt́ĥóûśê/áûd́ît́ŝ/áp̂ṕĉáĉh́ê)."
+  },
+  "lighthouse-core/audits/dobetterweb/appcache-manifest.js | displayValue": {
+    "message": "F̂óûńd̂ \"{AppCacheManifest}\""
+  },
+  "lighthouse-core/audits/dobetterweb/appcache-manifest.js | failureTitle": {
+    "message": "Ûśêś Âṕp̂ĺîćât́îón̂ Ćâćĥé"
+  },
+  "lighthouse-core/audits/dobetterweb/appcache-manifest.js | title": {
+    "message": "Âv́ôíd̂ś Âṕp̂ĺîćât́îón̂ Ćâćĥé"
+  },
+  "lighthouse-core/audits/dobetterweb/doctype.js | description": {
+    "message": "Ŝṕêćîf́ŷín̂ǵ â d́ôćt̂ýp̂é p̂ŕêv́êńt̂ś t̂h́ê b́r̂óŵśêŕ f̂ŕôḿ ŝẃît́ĉh́îńĝ t́ô q́ûír̂ḱŝ-ḿôd́ê. Ŕêád̂ ḿôŕê ón̂ t́ĥé [M̂D́N̂ Ẃêb́ D̂óĉś p̂áĝé](ĥt́t̂ṕŝ://d́êv́êĺôṕêŕ.m̂óẑíl̂ĺâ.ór̂ǵ/êń-ÛŚ/d̂óĉś/Ĝĺôśŝár̂ý/D̂óĉt́ŷṕê)"
+  },
+  "lighthouse-core/audits/dobetterweb/doctype.js | explanationBadDoctype": {
+    "message": "D̂óĉt́ŷṕê ńâḿê ḿûśt̂ b́ê t́ĥé l̂óŵér̂ćâśê śt̂ŕîńĝ `h́t̂ḿl̂`"
+  },
+  "lighthouse-core/audits/dobetterweb/doctype.js | explanationNoDoctype": {
+    "message": "D̂óĉúm̂én̂t́ m̂úŝt́ ĉón̂t́âín̂ á d̂óĉt́ŷṕê"
+  },
+  "lighthouse-core/audits/dobetterweb/doctype.js | explanationPublicId": {
+    "message": "Êx́p̂éĉt́êd́ p̂úb̂ĺîćÎd́ t̂ó b̂é âń êḿp̂t́ŷ śt̂ŕîńĝ"
+  },
+  "lighthouse-core/audits/dobetterweb/doctype.js | explanationSystemId": {
+    "message": "Êx́p̂éĉt́êd́ ŝýŝt́êḿÎd́ t̂ó b̂é âń êḿp̂t́ŷ śt̂ŕîńĝ"
+  },
+  "lighthouse-core/audits/dobetterweb/doctype.js | failureTitle": {
+    "message": "P̂áĝé l̂áĉḱŝ t́ĥé ĤT́M̂Ĺ d̂óĉt́ŷṕê, t́ĥúŝ t́r̂íĝǵêŕîńĝ q́ûír̂ḱŝ-ḿôd́ê"
+  },
+  "lighthouse-core/audits/dobetterweb/doctype.js | title": {
+    "message": "P̂áĝé ĥáŝ t́ĥé ĤT́M̂Ĺ d̂óĉt́ŷṕê"
+  },
+  "lighthouse-core/audits/dobetterweb/dom-size.js | columnElement": {
+    "message": "Êĺêḿêńt̂"
+  },
+  "lighthouse-core/audits/dobetterweb/dom-size.js | columnStatistic": {
+    "message": "Ŝt́ât́îśt̂íĉ"
+  },
+  "lighthouse-core/audits/dobetterweb/dom-size.js | columnValue": {
+    "message": "V̂ál̂úê"
+  },
+  "lighthouse-core/audits/dobetterweb/dom-size.js | description": {
+    "message": "B̂ŕôẃŝér̂ én̂ǵîńêér̂ś r̂éĉóm̂ḿêńd̂ ṕâǵêś ĉón̂t́âín̂ f́êẃêŕ t̂h́âń ~1,500 D̂ÓM̂ él̂ém̂én̂t́ŝ. T́ĥé ŝẃêét̂ śp̂ót̂ íŝ á t̂ŕêé d̂ép̂t́ĥ < 32 él̂ém̂én̂t́ŝ án̂d́ f̂éŵér̂ t́ĥán̂ 60 ćĥíl̂d́r̂én̂/ṕâŕêńt̂ él̂ém̂én̂t́. Â ĺâŕĝé D̂ÓM̂ ćâń îńĉŕêáŝé m̂ém̂ór̂ý ûśâǵê, ćâúŝé l̂ón̂ǵêŕ [ŝt́ŷĺê ćâĺĉúl̂át̂íôńŝ](h́t̂t́p̂ś://d̂év̂él̂óp̂ér̂ś.ĝóôǵl̂é.ĉóm̂/ẃêb́/f̂ún̂d́âḿêńt̂ál̂ś/p̂ér̂f́ôŕm̂án̂ćê/ŕêńd̂ér̂ín̂ǵ/r̂éd̂úĉé-t̂h́ê-śĉóp̂é-âńd̂-ćôḿp̂ĺêx́ît́ŷ-óf̂-śt̂ýl̂é-ĉál̂ćûĺât́îón̂ś), âńd̂ ṕr̂ód̂úĉé ĉóŝt́l̂ý [l̂áŷóût́ r̂éf̂ĺôẃŝ](h́t̂t́p̂ś://d̂év̂él̂óp̂ér̂ś.ĝóôǵl̂é.ĉóm̂/śp̂éêd́/âŕt̂íĉĺêś/r̂éf̂ĺôẃ). [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂év̂él̂óp̂ér̂ś.ĝóôǵl̂é.ĉóm̂/ẃêb́/t̂óôĺŝ/ĺîǵĥt́ĥóûśê/áûd́ît́ŝ/d́ôḿ-ŝíẑé)."
+  },
+  "lighthouse-core/audits/dobetterweb/dom-size.js | displayValue": {
+    "message": "{itemCount, plural,\n    =1 {1 êĺêḿêńt̂}\n    other {# él̂ém̂én̂t́ŝ}\n    }"
+  },
+  "lighthouse-core/audits/dobetterweb/dom-size.js | failureTitle": {
+    "message": "Âv́ôíd̂ án̂ éx̂ćêśŝív̂é D̂ÓM̂ śîźê"
+  },
+  "lighthouse-core/audits/dobetterweb/dom-size.js | statisticDOMDepth": {
+    "message": "M̂áx̂ím̂úm̂ D́ÔḾ D̂ép̂t́ĥ"
+  },
+  "lighthouse-core/audits/dobetterweb/dom-size.js | statisticDOMElements": {
+    "message": "T̂ót̂ál̂ D́ÔḾ Êĺêḿêńt̂ś"
+  },
+  "lighthouse-core/audits/dobetterweb/dom-size.js | statisticDOMWidth": {
+    "message": "M̂áx̂ím̂úm̂ Ćĥíl̂d́ Êĺêḿêńt̂ś"
+  },
+  "lighthouse-core/audits/dobetterweb/dom-size.js | title": {
+    "message": "Âv́ôíd̂ś âń êx́ĉéŝśîv́ê D́ÔḾ ŝíẑé"
+  },
+  "lighthouse-core/audits/dobetterweb/external-anchors-use-rel-noopener.js | columnRel": {
+    "message": "R̂él̂"
+  },
+  "lighthouse-core/audits/dobetterweb/external-anchors-use-rel-noopener.js | columnTarget": {
+    "message": "T̂ár̂ǵêt́"
+  },
+  "lighthouse-core/audits/dobetterweb/external-anchors-use-rel-noopener.js | description": {
+    "message": "Âd́d̂ `ŕêĺ=\"n̂óôṕêńêŕ\"` ôŕ `r̂él̂=\"ńôŕêf́êŕr̂ér̂\"` t́ô án̂ý êx́t̂ér̂ńâĺ l̂ín̂ḱŝ t́ô ím̂ṕr̂óv̂é p̂ér̂f́ôŕm̂án̂ćê án̂d́ p̂ŕêv́êńt̂ śêćûŕît́ŷ v́ûĺn̂ér̂áb̂íl̂ít̂íêś. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂év̂él̂óp̂ér̂ś.ĝóôǵl̂é.ĉóm̂/ẃêb́/t̂óôĺŝ/ĺîǵĥt́ĥóûśê/áûd́ît́ŝ/ńôóp̂én̂ér̂)."
+  },
+  "lighthouse-core/audits/dobetterweb/external-anchors-use-rel-noopener.js | failureTitle": {
+    "message": "L̂ín̂ḱŝ t́ô ćr̂óŝś-ôŕîǵîń d̂éŝt́îńât́îón̂ś âŕê ún̂śâf́ê"
+  },
+  "lighthouse-core/audits/dobetterweb/external-anchors-use-rel-noopener.js | title": {
+    "message": "L̂ín̂ḱŝ t́ô ćr̂óŝś-ôŕîǵîń d̂éŝt́îńât́îón̂ś âŕê śâf́ê"
+  },
+  "lighthouse-core/audits/dobetterweb/external-anchors-use-rel-noopener.js | warning": {
+    "message": "Ûńâb́l̂é t̂ó d̂ét̂ér̂ḿîńê t́ĥé d̂éŝt́îńât́îón̂ f́ôŕ âńĉh́ôŕ ({anchorHTML}). Îf́ n̂ót̂ úŝéd̂ áŝ á ĥýp̂ér̂ĺîńk̂, ćôńŝíd̂ér̂ ŕêḿôv́îńĝ t́âŕĝét̂=_b́l̂án̂ḱ."
+  },
+  "lighthouse-core/audits/dobetterweb/geolocation-on-start.js | description": {
+    "message": "Ûśêŕŝ ár̂é m̂íŝt́r̂úŝt́f̂úl̂ óf̂ ór̂ ćôńf̂úŝéd̂ b́ŷ śît́êś t̂h́ât́ r̂éq̂úêśt̂ t́ĥéîŕ l̂óĉát̂íôń ŵít̂h́ôút̂ ćôńt̂éx̂t́. Ĉón̂śîd́êŕ t̂ýîńĝ t́ĥé r̂éq̂úêśt̂ t́ô á ûśêŕ âćt̂íôń îńŝt́êád̂. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êv́êĺôṕêŕŝ.ǵôóĝĺê.ćôḿ/ŵéb̂/t́ôól̂ś/l̂íĝh́t̂h́ôúŝé/âúd̂ít̂ś/ĝéôĺôćât́îón̂-ón̂-ĺôád̂)."
+  },
+  "lighthouse-core/audits/dobetterweb/geolocation-on-start.js | failureTitle": {
+    "message": "R̂éq̂úêśt̂ś t̂h́ê ǵêól̂óĉát̂íôń p̂ér̂ḿîśŝíôń ôń p̂áĝé l̂óâd́"
+  },
+  "lighthouse-core/audits/dobetterweb/geolocation-on-start.js | title": {
+    "message": "Âv́ôíd̂ś r̂éq̂úêśt̂ín̂ǵ t̂h́ê ǵêól̂óĉát̂íôń p̂ér̂ḿîśŝíôń ôń p̂áĝé l̂óâd́"
+  },
+  "lighthouse-core/audits/dobetterweb/js-libraries.js | columnName": {
+    "message": "N̂ám̂é"
+  },
+  "lighthouse-core/audits/dobetterweb/js-libraries.js | columnVersion": {
+    "message": "V̂ér̂śîón̂"
+  },
+  "lighthouse-core/audits/dobetterweb/js-libraries.js | description": {
+    "message": "Âĺl̂ f́r̂ón̂t́-êńd̂ J́âv́âŚĉŕîṕt̂ ĺîb́r̂ár̂íêś d̂ét̂éĉt́êd́ ôń t̂h́ê ṕâǵê."
+  },
+  "lighthouse-core/audits/dobetterweb/js-libraries.js | title": {
+    "message": "D̂ét̂éĉt́êd́ Ĵáv̂áŜćr̂íp̂t́ l̂íb̂ŕâŕîéŝ"
+  },
+  "lighthouse-core/audits/dobetterweb/no-document-write.js | description": {
+    "message": "F̂ór̂ úŝér̂ś ôń ŝĺôẃ ĉón̂ńêćt̂íôńŝ, éx̂t́êŕn̂ál̂ śĉŕîṕt̂ś d̂ýn̂ám̂íĉál̂ĺŷ ín̂j́êćt̂éd̂ v́îá `d̂óĉúm̂én̂t́.ŵŕît́ê()` ćâń d̂él̂áŷ ṕâǵê ĺôád̂ b́ŷ t́êńŝ óf̂ śêćôńd̂ś. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂év̂él̂óp̂ér̂ś.ĝóôǵl̂é.ĉóm̂/ẃêb́/t̂óôĺŝ/ĺîǵĥt́ĥóûśê/áûd́ît́ŝ/d́ôćûḿêńt̂-ẃr̂ít̂é)."
+  },
+  "lighthouse-core/audits/dobetterweb/no-document-write.js | failureTitle": {
+    "message": "Ûśêś `d̂óĉúm̂én̂t́.ŵŕît́ê()`"
+  },
+  "lighthouse-core/audits/dobetterweb/no-document-write.js | title": {
+    "message": "Âv́ôíd̂ś `d̂óĉúm̂én̂t́.ŵŕît́ê()`"
+  },
+  "lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js | columnSeverity": {
+    "message": "Ĥíĝh́êśt̂ Śêv́êŕît́ŷ"
+  },
+  "lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js | columnVersion": {
+    "message": "L̂íb̂ŕâŕŷ V́êŕŝíôń"
+  },
+  "lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js | columnVuln": {
+    "message": "V̂úl̂ńêŕâb́îĺît́ŷ Ćôún̂t́"
+  },
+  "lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js | description": {
+    "message": "Ŝóm̂é t̂h́îŕd̂-ṕâŕt̂ý ŝćr̂íp̂t́ŝ ḿâý ĉón̂t́âín̂ ḱn̂óŵń ŝéĉúr̂ít̂ý v̂úl̂ńêŕâb́îĺît́îéŝ t́ĥát̂ ár̂é êáŝíl̂ý îd́êńt̂íf̂íêd́ âńd̂ éx̂ṕl̂óît́êd́ b̂ý ât́t̂áĉḱêŕŝ. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êv́êĺôṕêŕŝ.ǵôóĝĺê.ćôḿ/ŵéb̂/t́ôól̂ś/l̂íĝh́t̂h́ôúŝé/âúd̂ít̂ś/v̂úl̂ńêŕâb́îĺît́îéŝ)."
+  },
+  "lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js | displayValue": {
+    "message": "{itemCount, plural,\n    =1 {1 v̂úl̂ńêŕâb́îĺît́ŷ d́êt́êćt̂éd̂}\n    other {# v́ûĺn̂ér̂áb̂íl̂ít̂íêś d̂ét̂éĉt́êd́}\n    }"
+  },
+  "lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js | failureTitle": {
+    "message": "Îńĉĺûd́êś f̂ŕôńt̂-én̂d́ Ĵáv̂áŜćr̂íp̂t́ l̂íb̂ŕâŕîéŝ ẃît́ĥ ḱn̂óŵń ŝéĉúr̂ít̂ý v̂úl̂ńêŕâb́îĺît́îéŝ"
+  },
+  "lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js | rowSeverityHigh": {
+    "message": "Ĥíĝh́"
+  },
+  "lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js | rowSeverityLow": {
+    "message": "L̂óŵ"
+  },
+  "lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js | rowSeverityMedium": {
+    "message": "M̂éd̂íûḿ"
+  },
+  "lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js | title": {
+    "message": "Âv́ôíd̂ś f̂ŕôńt̂-én̂d́ Ĵáv̂áŜćr̂íp̂t́ l̂íb̂ŕâŕîéŝ ẃît́ĥ ḱn̂óŵń ŝéĉúr̂ít̂ý v̂úl̂ńêŕâb́îĺît́îéŝ"
+  },
+  "lighthouse-core/audits/dobetterweb/notification-on-start.js | description": {
+    "message": "Ûśêŕŝ ár̂é m̂íŝt́r̂úŝt́f̂úl̂ óf̂ ór̂ ćôńf̂úŝéd̂ b́ŷ śît́êś t̂h́ât́ r̂éq̂úêśt̂ t́ô śêńd̂ ńôt́îf́îćât́îón̂ś ŵít̂h́ôút̂ ćôńt̂éx̂t́. Ĉón̂śîd́êŕ t̂ýîńĝ t́ĥé r̂éq̂úêśt̂ t́ô úŝér̂ ǵêśt̂úr̂éŝ ín̂śt̂éâd́. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂év̂él̂óp̂ér̂ś.ĝóôǵl̂é.ĉóm̂/ẃêb́/t̂óôĺŝ/ĺîǵĥt́ĥóûśê/áûd́ît́ŝ/ńôt́îf́îćât́îón̂ś-ôń-l̂óâd́)."
+  },
+  "lighthouse-core/audits/dobetterweb/notification-on-start.js | failureTitle": {
+    "message": "R̂éq̂úêśt̂ś t̂h́ê ńôt́îf́îćât́îón̂ ṕêŕm̂íŝśîón̂ ón̂ ṕâǵê ĺôád̂"
+  },
+  "lighthouse-core/audits/dobetterweb/notification-on-start.js | title": {
+    "message": "Âv́ôíd̂ś r̂éq̂úêśt̂ín̂ǵ t̂h́ê ńôt́îf́îćât́îón̂ ṕêŕm̂íŝśîón̂ ón̂ ṕâǵê ĺôád̂"
+  },
+  "lighthouse-core/audits/dobetterweb/password-inputs-can-be-pasted-into.js | columnFailingElem": {
+    "message": "F̂áîĺîńĝ Él̂ém̂én̂t́ŝ"
+  },
+  "lighthouse-core/audits/dobetterweb/password-inputs-can-be-pasted-into.js | description": {
+    "message": "P̂ŕêv́êńt̂ín̂ǵ p̂áŝśŵór̂d́ p̂áŝt́îńĝ ún̂d́êŕm̂ín̂éŝ ǵôód̂ śêćûŕît́ŷ ṕôĺîćŷ. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êv́êĺôṕêŕŝ.ǵôóĝĺê.ćôḿ/ŵéb̂/t́ôól̂ś/l̂íĝh́t̂h́ôúŝé/âúd̂ít̂ś/p̂áŝśŵór̂d́-p̂áŝt́îńĝ)."
+  },
+  "lighthouse-core/audits/dobetterweb/password-inputs-can-be-pasted-into.js | failureTitle": {
+    "message": "P̂ŕêv́êńt̂ś ûśêŕŝ t́ô ṕâśt̂é îńt̂ó p̂áŝśŵór̂d́ f̂íêĺd̂ś"
+  },
+  "lighthouse-core/audits/dobetterweb/password-inputs-can-be-pasted-into.js | title": {
+    "message": "Âĺl̂óŵś ûśêŕŝ t́ô ṕâśt̂é îńt̂ó p̂áŝśŵór̂d́ f̂íêĺd̂ś"
+  },
+  "lighthouse-core/audits/dobetterweb/uses-http2.js | columnProtocol": {
+    "message": "P̂ŕôt́ôćôĺ"
+  },
+  "lighthouse-core/audits/dobetterweb/uses-http2.js | description": {
+    "message": "ĤT́T̂Ṕ/2 ôf́f̂ér̂ś m̂án̂ý b̂én̂éf̂ít̂ś ôv́êŕ ĤT́T̂Ṕ/1.1, îńĉĺûd́îńĝ b́îńâŕŷ h́êád̂ér̂ś, m̂úl̂t́îṕl̂éx̂ín̂ǵ, âńd̂ śêŕv̂ér̂ ṕûśĥ. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êv́êĺôṕêŕŝ.ǵôóĝĺê.ćôḿ/ŵéb̂/t́ôól̂ś/l̂íĝh́t̂h́ôúŝé/âúd̂ít̂ś/ĥt́t̂ṕ2)."
+  },
+  "lighthouse-core/audits/dobetterweb/uses-http2.js | displayValue": {
+    "message": "{itemCount, plural,\n    =1 {1 r̂éq̂úêśt̂ ńôt́ ŝér̂v́êd́ v̂íâ H́T̂T́P̂/2}\n    other {# ŕêq́ûéŝt́ŝ ńôt́ ŝér̂v́êd́ v̂íâ H́T̂T́P̂/2}\n    }"
+  },
+  "lighthouse-core/audits/dobetterweb/uses-http2.js | failureTitle": {
+    "message": "D̂óêś n̂ót̂ úŝé ĤT́T̂Ṕ/2 f̂ór̂ ál̂ĺ ôf́ ît́ŝ ŕêśôúr̂ćêś"
+  },
+  "lighthouse-core/audits/dobetterweb/uses-http2.js | title": {
+    "message": "Ûśêś ĤT́T̂Ṕ/2 f̂ór̂ ít̂ś ôẃn̂ ŕêśôúr̂ćêś"
+  },
+  "lighthouse-core/audits/dobetterweb/uses-passive-event-listeners.js | description": {
+    "message": "Ĉón̂śîd́êŕ m̂ár̂ḱîńĝ ýôúr̂ t́ôúĉh́ âńd̂ ẃĥéêĺ êv́êńt̂ ĺîśt̂én̂ér̂ś âś `p̂áŝśîv́ê` t́ô ím̂ṕr̂óv̂é ŷóûŕ p̂áĝé'ŝ śĉŕôĺl̂ ṕêŕf̂ór̂ḿâńĉé. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂év̂él̂óp̂ér̂ś.ĝóôǵl̂é.ĉóm̂/ẃêb́/t̂óôĺŝ/ĺîǵĥt́ĥóûśê/áûd́ît́ŝ/ṕâśŝív̂é-êv́êńt̂-ĺîśt̂én̂ér̂ś)."
+  },
+  "lighthouse-core/audits/dobetterweb/uses-passive-event-listeners.js | failureTitle": {
+    "message": "D̂óêś n̂ót̂ úŝé p̂áŝśîv́ê ĺîśt̂én̂ér̂ś t̂ó îḿp̂ŕôv́ê śĉŕôĺl̂ín̂ǵ p̂ér̂f́ôŕm̂án̂ćê"
+  },
+  "lighthouse-core/audits/dobetterweb/uses-passive-event-listeners.js | title": {
+    "message": "Ûśêś p̂áŝśîv́ê ĺîśt̂én̂ér̂ś t̂ó îḿp̂ŕôv́ê śĉŕôĺl̂ín̂ǵ p̂ér̂f́ôŕm̂án̂ćê"
+  },
+  "lighthouse-core/audits/errors-in-console.js | columnDesc": {
+    "message": "D̂éŝćr̂íp̂t́îón̂"
+  },
+  "lighthouse-core/audits/errors-in-console.js | description": {
+    "message": "Êŕr̂ór̂ś l̂óĝǵêd́ t̂ó t̂h́ê ćôńŝól̂é îńd̂íĉát̂é ûńr̂éŝól̂v́êd́ p̂ŕôb́l̂ém̂ś. T̂h́êý ĉán̂ ćôḿê f́r̂óm̂ ńêt́ŵór̂ḱ r̂éq̂úêśt̂ f́âíl̂úr̂éŝ án̂d́ ôt́ĥér̂ b́r̂óŵśêŕ ĉón̂ćêŕn̂ś."
+  },
+  "lighthouse-core/audits/errors-in-console.js | failureTitle": {
+    "message": "B̂ŕôẃŝér̂ ér̂ŕôŕŝ ẃêŕê ĺôǵĝéd̂ t́ô t́ĥé ĉón̂śôĺê"
+  },
+  "lighthouse-core/audits/errors-in-console.js | title": {
+    "message": "N̂ó b̂ŕôẃŝér̂ ér̂ŕôŕŝ ĺôǵĝéd̂ t́ô t́ĥé ĉón̂śôĺê"
+  },
+  "lighthouse-core/audits/font-display.js | description": {
+    "message": "L̂év̂ér̂áĝé t̂h́ê f́ôńt̂-d́îśp̂ĺâý ĈŚŜ f́êát̂úr̂é t̂ó êńŝúr̂é t̂éx̂t́ îś ûśêŕ-v̂íŝíb̂ĺê ẃĥíl̂é ŵéb̂f́ôńt̂ś âŕê ĺôád̂ín̂ǵ. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂év̂él̂óp̂ér̂ś.ĝóôǵl̂é.ĉóm̂/ẃêb́/ûṕd̂át̂éŝ/2016/02/f́ôńt̂-d́îśp̂ĺâý)."
+  },
+  "lighthouse-core/audits/font-display.js | failureTitle": {
+    "message": "Êńŝúr̂é t̂éx̂t́ r̂ém̂áîńŝ v́îśîb́l̂é d̂úr̂ín̂ǵ ŵéb̂f́ôńt̂ ĺôád̂"
+  },
+  "lighthouse-core/audits/font-display.js | title": {
+    "message": "Âĺl̂ t́êx́t̂ ŕêḿâín̂ś v̂íŝíb̂ĺê d́ûŕîńĝ ẃêb́f̂ón̂t́ l̂óâd́ŝ"
+  },
+  "lighthouse-core/audits/font-display.js | undeclaredFontURLWarning": {
+    "message": "L̂íĝh́t̂h́ôúŝé ŵáŝ ún̂áb̂ĺê t́ô áût́ôḿât́îćâĺl̂ý ĉh́êćk̂ t́ĥé f̂ón̂t́-d̂íŝṕl̂áŷ v́âĺûé f̂ór̂ t́ĥé f̂ól̂ĺôẃîńĝ ÚR̂Ĺ: {fontURL}."
+  },
+  "lighthouse-core/audits/image-aspect-ratio.js | columnActual": {
+    "message": "Âśp̂éĉt́ R̂át̂íô (Áĉt́ûál̂)"
+  },
+  "lighthouse-core/audits/image-aspect-ratio.js | columnDisplayed": {
+    "message": "Âśp̂éĉt́ R̂át̂íô (D́îśp̂ĺâýêd́)"
+  },
+  "lighthouse-core/audits/image-aspect-ratio.js | description": {
+    "message": "Îḿâǵê d́îśp̂ĺâý d̂ím̂én̂śîón̂ś ŝh́ôúl̂d́ m̂át̂ćĥ ńât́ûŕâĺ âśp̂éĉt́ r̂át̂íô. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êv́êĺôṕêŕŝ.ǵôóĝĺê.ćôḿ/ŵéb̂/t́ôól̂ś/l̂íĝh́t̂h́ôúŝé/âúd̂ít̂ś/âśp̂éĉt́-r̂át̂íô)."
+  },
+  "lighthouse-core/audits/image-aspect-ratio.js | failureTitle": {
+    "message": "D̂íŝṕl̂áŷś îḿâǵêś ŵít̂h́ îńĉór̂ŕêćt̂ áŝṕêćt̂ ŕât́îó"
+  },
+  "lighthouse-core/audits/image-aspect-ratio.js | title": {
+    "message": "D̂íŝṕl̂áŷś îḿâǵêś ŵít̂h́ ĉór̂ŕêćt̂ áŝṕêćt̂ ŕât́îó"
+  },
+  "lighthouse-core/audits/image-aspect-ratio.js | warningCompute": {
+    "message": "Îńv̂ál̂íd̂ ím̂áĝé ŝíẑín̂ǵ îńf̂ór̂ḿât́îón̂ {url}"
+  },
+  "lighthouse-core/audits/is-on-https.js | columnInsecureURL": {
+    "message": "Îńŝéĉúr̂é ÛŔL̂"
+  },
+  "lighthouse-core/audits/is-on-https.js | description": {
+    "message": "Âĺl̂ śît́êś ŝh́ôúl̂d́ b̂é p̂ŕôt́êćt̂éd̂ ẃît́ĥ H́T̂T́P̂Ś, êv́êń ôńêś t̂h́ât́ d̂ón̂'t́ ĥán̂d́l̂é ŝén̂śît́îv́ê d́ât́â. H́T̂T́P̂Ś p̂ŕêv́êńt̂ś îńt̂ŕûd́êŕŝ f́r̂óm̂ t́âḿp̂ér̂ín̂ǵ ŵít̂h́ ôŕ p̂áŝśîv́êĺŷ ĺîśt̂én̂ín̂ǵ îń ôń t̂h́ê ćôḿm̂ún̂íĉát̂íôńŝ b́êt́ŵéêń ŷóûŕ âṕp̂ án̂d́ ŷóûŕ ûśêŕŝ, án̂d́ îś â ṕr̂ér̂éq̂úîśît́ê f́ôŕ ĤT́T̂Ṕ/2 âńd̂ ḿâńŷ ńêẃ ŵéb̂ ṕl̂át̂f́ôŕm̂ ÁP̂Íŝ. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êv́êĺôṕêŕŝ.ǵôóĝĺê.ćôḿ/ŵéb̂/t́ôól̂ś/l̂íĝh́t̂h́ôúŝé/âúd̂ít̂ś/ĥt́t̂ṕŝ)."
+  },
+  "lighthouse-core/audits/is-on-https.js | displayValue": {
+    "message": "{itemCount, plural,\n    =1 {1 îńŝéĉúr̂é r̂éq̂úêśt̂ f́ôún̂d́}\n    other {# îńŝéĉúr̂é r̂éq̂úêśt̂ś f̂óûńd̂}\n    }"
+  },
+  "lighthouse-core/audits/is-on-https.js | failureTitle": {
+    "message": "D̂óêś n̂ót̂ úŝé ĤT́T̂ṔŜ"
+  },
+  "lighthouse-core/audits/is-on-https.js | title": {
+    "message": "Ûśêś ĤT́T̂ṔŜ"
+  },
+  "lighthouse-core/audits/load-fast-enough-for-pwa.js | description": {
+    "message": "Â f́âśt̂ ṕâǵê ĺôád̂ óv̂ér̂ á ĉél̂ĺûĺâŕ n̂ét̂ẃôŕk̂ én̂śûŕêś â ǵôód̂ ḿôb́îĺê úŝér̂ éx̂ṕêŕîén̂ćê. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êv́êĺôṕêŕŝ.ǵôóĝĺê.ćôḿ/ŵéb̂/t́ôól̂ś/l̂íĝh́t̂h́ôúŝé/âúd̂ít̂ś/f̂áŝt́-3ĝ)."
+  },
+  "lighthouse-core/audits/load-fast-enough-for-pwa.js | displayValueText": {
+    "message": "Îńt̂ér̂áĉt́îv́ê át̂ {timeInMs, number, seconds} ś"
+  },
+  "lighthouse-core/audits/load-fast-enough-for-pwa.js | displayValueTextWithOverride": {
+    "message": "Îńt̂ér̂áĉt́îv́ê ón̂ śîḿûĺât́êd́ m̂ób̂íl̂é n̂ét̂ẃôŕk̂ át̂ {timeInMs, number, seconds} ś"
+  },
+  "lighthouse-core/audits/load-fast-enough-for-pwa.js | failureTitle": {
+    "message": "P̂áĝé l̂óâd́ îś n̂ót̂ f́âśt̂ én̂óûǵĥ ón̂ ḿôb́îĺê ńêt́ŵór̂ḱŝ"
+  },
+  "lighthouse-core/audits/load-fast-enough-for-pwa.js | title": {
+    "message": "P̂áĝé l̂óâd́ îś f̂áŝt́ êńôúĝh́ ôń m̂ób̂íl̂é n̂ét̂ẃôŕk̂ś"
+  },
+  "lighthouse-core/audits/mainthread-work-breakdown.js | columnCategory": {
+    "message": "Ĉát̂éĝór̂ý"
+  },
+  "lighthouse-core/audits/mainthread-work-breakdown.js | description": {
+    "message": "Ĉón̂śîd́êŕ r̂éd̂úĉín̂ǵ t̂h́ê t́îḿê śp̂én̂t́ p̂ár̂śîńĝ, ćôḿp̂íl̂ín̂ǵ âńd̂ éx̂éĉút̂ín̂ǵ ĴŚ. Ŷóû ḿâý f̂ín̂d́ d̂él̂ív̂ér̂ín̂ǵ ŝḿâĺl̂ér̂ J́Ŝ ṕâýl̂óâd́ŝ h́êĺp̂ś ŵít̂h́ t̂h́îś."
+  },
+  "lighthouse-core/audits/mainthread-work-breakdown.js | failureTitle": {
+    "message": "M̂ín̂ím̂íẑé m̂áîń-t̂h́r̂éâd́ ŵór̂ḱ"
+  },
+  "lighthouse-core/audits/mainthread-work-breakdown.js | title": {
+    "message": "M̂ín̂ím̂íẑéŝ ḿâín̂-t́ĥŕêád̂ ẃôŕk̂"
+  },
+  "lighthouse-core/audits/metrics/estimated-input-latency.js | description": {
+    "message": "Êśt̂ím̂át̂éd̂ Ín̂ṕût́ L̂át̂én̂ćŷ íŝ án̂ éŝt́îḿât́ê óf̂ h́ôẃ l̂ón̂ǵ ŷóûŕ âṕp̂ t́âḱêś t̂ó r̂éŝṕôńd̂ t́ô úŝér̂ ín̂ṕût́, îń m̂íl̂ĺîśêćôńd̂ś, d̂úr̂ín̂ǵ t̂h́ê b́ûśîéŝt́ 5ŝ ẃîńd̂óŵ óf̂ ṕâǵê ĺôád̂. Íf̂ ýôúr̂ ĺât́êńĉý îś ĥíĝh́êŕ t̂h́âń 50 m̂ś, ûśêŕŝ ḿâý p̂ér̂ćêív̂é ŷóûŕ âṕp̂ áŝ ĺâǵĝý. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂év̂él̂óp̂ér̂ś.ĝóôǵl̂é.ĉóm̂/ẃêb́/t̂óôĺŝ/ĺîǵĥt́ĥóûśê/áûd́ît́ŝ/éŝt́îḿât́êd́-îńp̂út̂-ĺât́êńĉý)."
+  },
+  "lighthouse-core/audits/metrics/estimated-input-latency.js | title": {
+    "message": "Êśt̂ím̂át̂éd̂ Ín̂ṕût́ L̂át̂én̂ćŷ"
+  },
+  "lighthouse-core/audits/metrics/first-contentful-paint.js | description": {
+    "message": "F̂ír̂śt̂ Ćôńt̂én̂t́f̂úl̂ Ṕâín̂t́ m̂ár̂ḱŝ t́ĥé t̂ím̂é ât́ ŵh́îćĥ t́ĥé f̂ír̂śt̂ t́êx́t̂ ór̂ ím̂áĝé îś p̂áîńt̂éd̂. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êv́êĺôṕêŕŝ.ǵôóĝĺê.ćôḿ/ŵéb̂/t́ôól̂ś/l̂íĝh́t̂h́ôúŝé/âúd̂ít̂ś/f̂ír̂śt̂-ćôńt̂én̂t́f̂úl̂-ṕâín̂t́)."
+  },
+  "lighthouse-core/audits/metrics/first-contentful-paint.js | title": {
+    "message": "F̂ír̂śt̂ Ćôńt̂én̂t́f̂úl̂ Ṕâín̂t́"
+  },
+  "lighthouse-core/audits/metrics/first-cpu-idle.js | description": {
+    "message": "F̂ír̂śt̂ ĆP̂Ú Îd́l̂é m̂ár̂ḱŝ t́ĥé f̂ír̂śt̂ t́îḿê át̂ ẃĥíĉh́ t̂h́ê ṕâǵê'ś m̂áîń t̂h́r̂éâd́ îś q̂úîét̂ én̂óûǵĥ t́ô h́âńd̂ĺê ín̂ṕût́. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂év̂él̂óp̂ér̂ś.ĝóôǵl̂é.ĉóm̂/ẃêb́/t̂óôĺŝ/ĺîǵĥt́ĥóûśê/áûd́ît́ŝ/f́îŕŝt́-îńt̂ér̂áĉt́îv́ê)."
+  },
+  "lighthouse-core/audits/metrics/first-cpu-idle.js | title": {
+    "message": "F̂ír̂śt̂ ĆP̂Ú Îd́l̂é"
+  },
+  "lighthouse-core/audits/metrics/first-meaningful-paint.js | description": {
+    "message": "F̂ír̂śt̂ Ḿêán̂ín̂ǵf̂úl̂ Ṕâín̂t́ m̂éâśûŕêś ŵh́êń t̂h́ê ṕr̂ím̂ár̂ý ĉón̂t́êńt̂ óf̂ á p̂áĝé îś v̂íŝíb̂ĺê. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êv́êĺôṕêŕŝ.ǵôóĝĺê.ćôḿ/ŵéb̂/t́ôól̂ś/l̂íĝh́t̂h́ôúŝé/âúd̂ít̂ś/f̂ír̂śt̂-ḿêán̂ín̂ǵf̂úl̂-ṕâín̂t́)."
+  },
+  "lighthouse-core/audits/metrics/first-meaningful-paint.js | title": {
+    "message": "F̂ír̂śt̂ Ḿêán̂ín̂ǵf̂úl̂ Ṕâín̂t́"
+  },
+  "lighthouse-core/audits/metrics/interactive.js | description": {
+    "message": "T̂ím̂é t̂ó îńt̂ér̂áĉt́îv́ê íŝ t́ĥé âḿôún̂t́ ôf́ t̂ím̂é ît́ t̂ák̂éŝ f́ôŕ t̂h́ê ṕâǵê t́ô b́êćôḿê f́ûĺl̂ý îńt̂ér̂áĉt́îv́ê. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êv́êĺôṕêŕŝ.ǵôóĝĺê.ćôḿ/ŵéb̂/t́ôól̂ś/l̂íĝh́t̂h́ôúŝé/âúd̂ít̂ś/ĉón̂śîśt̂én̂t́l̂ý-îńt̂ér̂áĉt́îv́ê)."
+  },
+  "lighthouse-core/audits/metrics/interactive.js | title": {
+    "message": "T̂ím̂é t̂ó Îńt̂ér̂áĉt́îv́ê"
+  },
+  "lighthouse-core/audits/metrics/max-potential-fid.js | description": {
+    "message": "T̂h́ê ḿâx́îḿûḿ p̂ót̂én̂t́îál̂ F́îŕŝt́ Îńp̂út̂ D́êĺâý t̂h́ât́ ŷóûŕ ûśêŕŝ ćôúl̂d́ êx́p̂ér̂íêńĉé îś t̂h́ê d́ûŕât́îón̂, ín̂ ḿîĺl̂íŝéĉón̂d́ŝ, óf̂ t́ĥé l̂ón̂ǵêśt̂ t́âśk̂. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êv́êĺôṕêŕŝ.ǵôóĝĺê.ćôḿ/ŵéb̂/úp̂d́ât́êś/2018/05/f̂ír̂śt̂-ín̂ṕût́-d̂él̂áŷ)."
+  },
+  "lighthouse-core/audits/metrics/max-potential-fid.js | title": {
+    "message": "M̂áx̂ Ṕôt́êńt̂íâĺ F̂ír̂śt̂ Ín̂ṕût́ D̂él̂áŷ"
+  },
+  "lighthouse-core/audits/metrics/speed-index.js | description": {
+    "message": "Ŝṕêéd̂ Ín̂d́êx́ ŝh́ôẃŝ h́ôẃ q̂úîćk̂ĺŷ t́ĥé ĉón̂t́êńt̂ś ôf́ â ṕâǵê ár̂é v̂íŝíb̂ĺŷ ṕôṕûĺât́êd́. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂év̂él̂óp̂ér̂ś.ĝóôǵl̂é.ĉóm̂/ẃêb́/t̂óôĺŝ/ĺîǵĥt́ĥóûśê/áûd́ît́ŝ/śp̂éêd́-îńd̂éx̂)."
+  },
+  "lighthouse-core/audits/metrics/speed-index.js | title": {
+    "message": "Ŝṕêéd̂ Ín̂d́êx́"
+  },
+  "lighthouse-core/audits/network-rtt.js | description": {
+    "message": "N̂ét̂ẃôŕk̂ ŕôún̂d́ t̂ŕîṕ t̂ím̂éŝ (ŔT̂T́) ĥáv̂é â ĺâŕĝé îḿp̂áĉt́ ôń p̂ér̂f́ôŕm̂án̂ćê. Íf̂ t́ĥé R̂T́T̂ t́ô án̂ ór̂íĝín̂ íŝ h́îǵĥ, ít̂'ś âń îńd̂íĉát̂íôń t̂h́ât́ ŝér̂v́êŕŝ ćl̂óŝér̂ t́ô t́ĥé ûśêŕ ĉóûĺd̂ ím̂ṕr̂óv̂é p̂ér̂f́ôŕm̂án̂ćê. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://h́p̂b́n̂.ćô/ṕr̂ím̂ér̂-ón̂-ĺât́êńĉý-âńd̂-b́âńd̂ẃîd́t̂h́/)."
+  },
+  "lighthouse-core/audits/network-rtt.js | title": {
+    "message": "N̂ét̂ẃôŕk̂ Ŕôún̂d́ T̂ŕîṕ T̂ím̂éŝ"
+  },
+  "lighthouse-core/audits/network-server-latency.js | description": {
+    "message": "Ŝér̂v́êŕ l̂át̂én̂ćîéŝ ćâń îḿp̂áĉt́ ŵéb̂ ṕêŕf̂ór̂ḿâńĉé. Îf́ t̂h́ê śêŕv̂ér̂ ĺât́êńĉý ôf́ âń ôŕîǵîń îś ĥíĝh́, ît́'ŝ án̂ ín̂d́îćât́îón̂ t́ĥé ŝér̂v́êŕ îś ôv́êŕl̂óâd́êd́ ôŕ ĥáŝ ṕôór̂ b́âćk̂én̂d́ p̂ér̂f́ôŕm̂án̂ćê. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://h́p̂b́n̂.ćô/ṕr̂ím̂ér̂-ón̂-ẃêb́-p̂ér̂f́ôŕm̂án̂ćê/#án̂ál̂ýẑín̂ǵ-t̂h́ê-ŕêśôúr̂ćê-ẃât́êŕf̂ál̂ĺ)."
+  },
+  "lighthouse-core/audits/network-server-latency.js | title": {
+    "message": "Ŝér̂v́êŕ B̂áĉḱêńd̂ Ĺât́êńĉíêś"
+  },
+  "lighthouse-core/audits/performance-budget.js | columnOverBudget": {
+    "message": "Ôv́êŕ B̂úd̂ǵêt́"
+  },
+  "lighthouse-core/audits/performance-budget.js | description": {
+    "message": "K̂éêṕ t̂h́ê q́ûán̂t́ît́ŷ án̂d́ ŝíẑé ôf́ n̂ét̂ẃôŕk̂ ŕêq́ûéŝt́ŝ ún̂d́êŕ t̂h́ê t́âŕĝét̂ś ŝét̂ b́ŷ t́ĥé p̂ŕôv́îd́êd́ p̂ér̂f́ôŕm̂án̂ćê b́ûd́ĝét̂. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êv́êĺôṕêŕŝ.ǵôóĝĺê.ćôḿ/ŵéb̂/t́ôól̂ś/l̂íĝh́t̂h́ôúŝé/âúd̂ít̂ś/b̂úd̂ǵêt́ŝ)."
+  },
+  "lighthouse-core/audits/performance-budget.js | requestCountOverBudget": {
+    "message": "{count, plural,\n    =1 {1 r̂éq̂úêśt̂}\n    other {# ŕêq́ûéŝt́ŝ}\n   }"
+  },
+  "lighthouse-core/audits/performance-budget.js | title": {
+    "message": "P̂ér̂f́ôŕm̂án̂ćê b́ûd́ĝét̂"
+  },
+  "lighthouse-core/audits/redirects.js | description": {
+    "message": "R̂éd̂ír̂éĉt́ŝ ín̂t́r̂ód̂úĉé âd́d̂ít̂íôńâĺ d̂él̂áŷś b̂éf̂ór̂é t̂h́ê ṕâǵê ćâń b̂é l̂óâd́êd́. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂év̂él̂óp̂ér̂ś.ĝóôǵl̂é.ĉóm̂/ẃêb́/t̂óôĺŝ/ĺîǵĥt́ĥóûśê/áûd́ît́ŝ/ŕêd́îŕêćt̂ś)."
+  },
+  "lighthouse-core/audits/redirects.js | title": {
+    "message": "Âv́ôíd̂ ḿûĺt̂íp̂ĺê ṕâǵê ŕêd́îŕêćt̂ś"
+  },
+  "lighthouse-core/audits/resource-summary.js | description": {
+    "message": "T̂ó ŝét̂ b́ûd́ĝét̂ś f̂ór̂ t́ĥé q̂úâńt̂ít̂ý âńd̂ śîźê óf̂ ṕâǵê ŕêśôúr̂ćêś, âd́d̂ á b̂úd̂ǵêt́.ĵśôń f̂íl̂é. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂év̂él̂óp̂ér̂ś.ĝóôǵl̂é.ĉóm̂/ẃêb́/t̂óôĺŝ/ĺîǵĥt́ĥóûśê/áûd́ît́ŝ/b́ûd́ĝét̂ś)."
+  },
+  "lighthouse-core/audits/resource-summary.js | displayValue": {
+    "message": "{requestCount, plural, =1 {1 r̂éq̂úêśt̂} other {# ŕêq́ûéŝt́ŝ}} • { byteCount, number, bytes } ḰB̂"
+  },
+  "lighthouse-core/audits/resource-summary.js | title": {
+    "message": "K̂éêṕ r̂éq̂úêśt̂ ćôún̂t́ŝ ĺôẃ âńd̂ t́r̂án̂śf̂ér̂ śîźêś ŝḿâĺl̂"
+  },
+  "lighthouse-core/audits/seo/canonical.js | description": {
+    "message": "Ĉán̂ón̂íĉál̂ ĺîńk̂ś ŝúĝǵêśt̂ ẃĥíĉh́ ÛŔL̂ t́ô śĥóŵ ín̂ śêár̂ćĥ ŕêśûĺt̂ś. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂év̂él̂óp̂ér̂ś.ĝóôǵl̂é.ĉóm̂/ẃêb́/t̂óôĺŝ/ĺîǵĥt́ĥóûśê/áûd́ît́ŝ/ćâńôńîćâĺ)."
+  },
+  "lighthouse-core/audits/seo/canonical.js | explanationConflict": {
+    "message": "M̂úl̂t́îṕl̂é ĉón̂f́l̂íĉt́îńĝ ÚR̂Ĺŝ ({urlList})"
+  },
+  "lighthouse-core/audits/seo/canonical.js | explanationDifferentDomain": {
+    "message": "P̂óîńt̂ś t̂ó â d́îf́f̂ér̂én̂t́ d̂óm̂áîń ({url})"
+  },
+  "lighthouse-core/audits/seo/canonical.js | explanationInvalid": {
+    "message": "Îńv̂ál̂íd̂ ÚR̂Ĺ ({url})"
+  },
+  "lighthouse-core/audits/seo/canonical.js | explanationPointsElsewhere": {
+    "message": "P̂óîńt̂ś t̂ó âńôt́ĥér̂ `h́r̂éf̂ĺâńĝ` ĺôćât́îón̂ ({url})"
+  },
+  "lighthouse-core/audits/seo/canonical.js | explanationRelative": {
+    "message": "R̂él̂át̂ív̂é ÛŔL̂ ({url})"
+  },
+  "lighthouse-core/audits/seo/canonical.js | explanationRoot": {
+    "message": "P̂óîńt̂ś t̂ó t̂h́ê d́ôḿâín̂'ś r̂óôt́ ÛŔL̂ (t́ĥé ĥóm̂ép̂áĝé), îńŝt́êád̂ óf̂ án̂ éq̂úîv́âĺêńt̂ ṕâǵê óf̂ ćôńt̂én̂t́"
+  },
+  "lighthouse-core/audits/seo/canonical.js | failureTitle": {
+    "message": "D̂óĉúm̂én̂t́ d̂óêś n̂ót̂ h́âv́ê á v̂ál̂íd̂ `ŕêĺ=ĉán̂ón̂íĉál̂`"
+  },
+  "lighthouse-core/audits/seo/canonical.js | title": {
+    "message": "D̂óĉúm̂én̂t́ ĥáŝ á v̂ál̂íd̂ `ŕêĺ=ĉán̂ón̂íĉál̂`"
+  },
+  "lighthouse-core/audits/seo/font-size.js | description": {
+    "message": "F̂ón̂t́ ŝíẑéŝ ĺêśŝ t́ĥán̂ 12ṕx̂ ár̂é t̂óô śm̂ál̂ĺ t̂ó b̂é l̂éĝíb̂ĺê án̂d́ r̂éq̂úîŕê ḿôb́îĺê v́îśît́ôŕŝ t́ô “ṕîńĉh́ t̂ó ẑóôḿ” îń ôŕd̂ér̂ t́ô ŕêád̂. Śt̂ŕîv́ê t́ô h́âv́ê >60% óf̂ ṕâǵê t́êx́t̂ ≥12ṕx̂. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êv́êĺôṕêŕŝ.ǵôóĝĺê.ćôḿ/ŵéb̂/t́ôól̂ś/l̂íĝh́t̂h́ôúŝé/âúd̂ít̂ś/f̂ón̂t́-ŝíẑéŝ)."
+  },
+  "lighthouse-core/audits/seo/font-size.js | displayValue": {
+    "message": "{decimalProportion, number, extendedPercent} l̂éĝíb̂ĺê t́êx́t̂"
+  },
+  "lighthouse-core/audits/seo/font-size.js | explanation": {
+    "message": "{decimalProportion, number, extendedPercent} ôf́ t̂éx̂t́ îś t̂óô śm̂ál̂ĺ."
+  },
+  "lighthouse-core/audits/seo/font-size.js | explanationViewport": {
+    "message": "T̂éx̂t́ îś îĺl̂éĝíb̂ĺê b́êćâúŝé t̂h́êŕê'ś n̂ó v̂íêẃp̂ór̂t́ m̂ét̂á t̂áĝ óp̂t́îḿîźêd́ f̂ór̂ ḿôb́îĺê śĉŕêén̂ś."
+  },
+  "lighthouse-core/audits/seo/font-size.js | explanationWithDisclaimer": {
+    "message": "{decimalProportion, number, extendedPercent} ôf́ t̂éx̂t́ îś t̂óô śm̂ál̂ĺ (b̂áŝéd̂ ón̂ {decimalProportionVisited, number, extendedPercent} śâḿp̂ĺê)."
+  },
+  "lighthouse-core/audits/seo/font-size.js | failureTitle": {
+    "message": "D̂óĉúm̂én̂t́ d̂óêśn̂'t́ ûśê ĺêǵîb́l̂é f̂ón̂t́ ŝíẑéŝ"
+  },
+  "lighthouse-core/audits/seo/font-size.js | title": {
+    "message": "D̂óĉúm̂én̂t́ ûśêś l̂éĝíb̂ĺê f́ôńt̂ śîźêś"
+  },
+  "lighthouse-core/audits/seo/hreflang.js | description": {
+    "message": "ĥŕêf́l̂án̂ǵ l̂ín̂ḱŝ t́êĺl̂ śêár̂ćĥ én̂ǵîńêś ŵh́ât́ v̂ér̂śîón̂ óf̂ á p̂áĝé t̂h́êý ŝh́ôúl̂d́ l̂íŝt́ îń ŝéâŕĉh́ r̂éŝúl̂t́ŝ f́ôŕ â ǵîv́êń l̂án̂ǵûáĝé ôŕ r̂éĝíôń. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂év̂él̂óp̂ér̂ś.ĝóôǵl̂é.ĉóm̂/ẃêb́/t̂óôĺŝ/ĺîǵĥt́ĥóûśê/áûd́ît́ŝ/h́r̂éf̂ĺâńĝ)."
+  },
+  "lighthouse-core/audits/seo/hreflang.js | failureTitle": {
+    "message": "D̂óĉúm̂én̂t́ d̂óêśn̂'t́ ĥáv̂é â v́âĺîd́ `ĥŕêf́l̂án̂ǵ`"
+  },
+  "lighthouse-core/audits/seo/hreflang.js | title": {
+    "message": "D̂óĉúm̂én̂t́ ĥáŝ á v̂ál̂íd̂ `h́r̂éf̂ĺâńĝ`"
+  },
+  "lighthouse-core/audits/seo/http-status-code.js | description": {
+    "message": "P̂áĝéŝ ẃît́ĥ ún̂śûćĉéŝśf̂úl̂ H́T̂T́P̂ śt̂át̂úŝ ćôd́êś m̂áŷ ńôt́ b̂é îńd̂éx̂éd̂ ṕr̂óp̂ér̂ĺŷ. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êv́êĺôṕêŕŝ.ǵôóĝĺê.ćôḿ/ŵéb̂/t́ôól̂ś/l̂íĝh́t̂h́ôúŝé/âúd̂ít̂ś/ŝúĉćêśŝf́ûĺ-ĥt́t̂ṕ-ĉód̂é)."
+  },
+  "lighthouse-core/audits/seo/http-status-code.js | failureTitle": {
+    "message": "P̂áĝé ĥáŝ ún̂śûćĉéŝśf̂úl̂ H́T̂T́P̂ śt̂át̂úŝ ćôd́ê"
+  },
+  "lighthouse-core/audits/seo/http-status-code.js | title": {
+    "message": "P̂áĝé ĥáŝ śûćĉéŝśf̂úl̂ H́T̂T́P̂ śt̂át̂úŝ ćôd́ê"
+  },
+  "lighthouse-core/audits/seo/is-crawlable.js | description": {
+    "message": "Ŝéâŕĉh́ êńĝín̂éŝ ár̂é ûńâb́l̂é t̂ó îńĉĺûd́ê ýôúr̂ ṕâǵêś îń ŝéâŕĉh́ r̂éŝúl̂t́ŝ íf̂ t́ĥéŷ d́ôń't̂ h́âv́ê ṕêŕm̂íŝśîón̂ t́ô ćr̂áŵĺ t̂h́êḿ. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂év̂él̂óp̂ér̂ś.ĝóôǵl̂é.ĉóm̂/ẃêb́/t̂óôĺŝ/ĺîǵĥt́ĥóûśê/áûd́ît́ŝ/ín̂d́êx́îńĝ)."
+  },
+  "lighthouse-core/audits/seo/is-crawlable.js | failureTitle": {
+    "message": "P̂áĝé îś b̂ĺôćk̂éd̂ f́r̂óm̂ ín̂d́êx́îńĝ"
+  },
+  "lighthouse-core/audits/seo/is-crawlable.js | title": {
+    "message": "P̂áĝé îśn̂’t́ b̂ĺôćk̂éd̂ f́r̂óm̂ ín̂d́êx́îńĝ"
+  },
+  "lighthouse-core/audits/seo/link-text.js | description": {
+    "message": "D̂éŝćr̂íp̂t́îv́ê ĺîńk̂ t́êx́t̂ h́êĺp̂ś ŝéâŕĉh́ êńĝín̂éŝ ún̂d́êŕŝt́âńd̂ ýôúr̂ ćôńt̂én̂t́. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂év̂él̂óp̂ér̂ś.ĝóôǵl̂é.ĉóm̂/ẃêb́/t̂óôĺŝ/ĺîǵĥt́ĥóûśê/áûd́ît́ŝ/d́êśĉŕîṕt̂ív̂é-l̂ín̂ḱ-t̂éx̂t́)."
+  },
+  "lighthouse-core/audits/seo/link-text.js | displayValue": {
+    "message": "{itemCount, plural,\n    =1 {1 l̂ín̂ḱ f̂óûńd̂}\n    other {# ĺîńk̂ś f̂óûńd̂}\n    }"
+  },
+  "lighthouse-core/audits/seo/link-text.js | failureTitle": {
+    "message": "L̂ín̂ḱŝ d́ô ńôt́ ĥáv̂é d̂éŝćr̂íp̂t́îv́ê t́êx́t̂"
+  },
+  "lighthouse-core/audits/seo/link-text.js | title": {
+    "message": "L̂ín̂ḱŝ h́âv́ê d́êśĉŕîṕt̂ív̂é t̂éx̂t́"
+  },
+  "lighthouse-core/audits/seo/manual/structured-data.js | description": {
+    "message": "R̂ún̂ t́ĥé [Ŝt́r̂úĉt́ûŕêd́ D̂át̂á T̂éŝt́îńĝ T́ôól̂](h́t̂t́p̂ś://ŝéâŕĉh́.ĝóôǵl̂é.ĉóm̂/śt̂ŕûćt̂úr̂éd̂-d́ât́â/t́êśt̂ín̂ǵ-t̂óôĺ/) âńd̂ t́ĥé [Ŝt́r̂úĉt́ûŕêd́ D̂át̂á L̂ín̂t́êŕ](ĥt́t̂ṕ://l̂ín̂t́êŕ.ŝt́r̂úĉt́ûŕêd́-d̂át̂á.ôŕĝ/) t́ô v́âĺîd́ât́ê śt̂ŕûćt̂úr̂éd̂ d́ât́â. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êv́êĺôṕêŕŝ.ǵôóĝĺê.ćôḿ/ŝéâŕĉh́/d̂óĉś/ĝúîd́êś/m̂ár̂ḱ-ûṕ-ĉón̂t́êńt̂)."
+  },
+  "lighthouse-core/audits/seo/manual/structured-data.js | title": {
+    "message": "Ŝt́r̂úĉt́ûŕêd́ d̂át̂á îś v̂ál̂íd̂"
+  },
+  "lighthouse-core/audits/seo/meta-description.js | description": {
+    "message": "M̂ét̂á d̂éŝćr̂íp̂t́îón̂ś m̂áŷ b́ê ín̂ćl̂úd̂éd̂ ín̂ śêár̂ćĥ ŕêśûĺt̂ś t̂ó ĉón̂ćîśêĺŷ śûḿm̂ár̂íẑé p̂áĝé ĉón̂t́êńt̂. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êv́êĺôṕêŕŝ.ǵôóĝĺê.ćôḿ/ŵéb̂/t́ôól̂ś/l̂íĝh́t̂h́ôúŝé/âúd̂ít̂ś/d̂éŝćr̂íp̂t́îón̂)."
+  },
+  "lighthouse-core/audits/seo/meta-description.js | explanation": {
+    "message": "D̂éŝćr̂íp̂t́îón̂ t́êx́t̂ íŝ ém̂ṕt̂ý."
+  },
+  "lighthouse-core/audits/seo/meta-description.js | failureTitle": {
+    "message": "D̂óĉúm̂én̂t́ d̂óêś n̂ót̂ h́âv́ê á m̂ét̂á d̂éŝćr̂íp̂t́îón̂"
+  },
+  "lighthouse-core/audits/seo/meta-description.js | title": {
+    "message": "D̂óĉúm̂én̂t́ ĥáŝ á m̂ét̂á d̂éŝćr̂íp̂t́îón̂"
+  },
+  "lighthouse-core/audits/seo/plugins.js | description": {
+    "message": "Ŝéâŕĉh́ êńĝín̂éŝ ćâń't̂ ín̂d́êx́ p̂ĺûǵîń ĉón̂t́êńt̂, án̂d́ m̂án̂ý d̂év̂íĉéŝ ŕêśt̂ŕîćt̂ ṕl̂úĝín̂ś ôŕ d̂ón̂'t́ ŝúp̂ṕôŕt̂ t́ĥém̂. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êv́êĺôṕêŕŝ.ǵôóĝĺê.ćôḿ/ŵéb̂/t́ôól̂ś/l̂íĝh́t̂h́ôúŝé/âúd̂ít̂ś/p̂ĺûǵîńŝ)."
+  },
+  "lighthouse-core/audits/seo/plugins.js | failureTitle": {
+    "message": "D̂óĉúm̂én̂t́ ûśêś p̂ĺûǵîńŝ"
+  },
+  "lighthouse-core/audits/seo/plugins.js | title": {
+    "message": "D̂óĉúm̂én̂t́ âv́ôíd̂ś p̂ĺûǵîńŝ"
+  },
+  "lighthouse-core/audits/seo/robots-txt.js | description": {
+    "message": "Îf́ ŷóûŕ r̂ób̂ót̂ś.t̂x́t̂ f́îĺê íŝ ḿâĺf̂ór̂ḿêd́, ĉŕâẃl̂ér̂ś m̂áŷ ńôt́ b̂é âb́l̂é t̂ó ûńd̂ér̂śt̂án̂d́ ĥóŵ ýôú ŵán̂t́ ŷóûŕ ŵéb̂śît́ê t́ô b́ê ćr̂áŵĺêd́ ôŕ îńd̂éx̂éd̂."
+  },
+  "lighthouse-core/audits/seo/robots-txt.js | displayValueHttpBadCode": {
+    "message": "r̂éq̂úêśt̂ f́ôŕ r̂ób̂ót̂ś.t̂x́t̂ ŕêt́ûŕn̂éd̂ H́T̂T́P̂ śt̂át̂úŝ: {statusCode}"
+  },
+  "lighthouse-core/audits/seo/robots-txt.js | displayValueValidationError": {
+    "message": "{itemCount, plural,\n    =1 {1 êŕr̂ór̂ f́ôún̂d́}\n    other {# êŕr̂ór̂ś f̂óûńd̂}\n    }"
+  },
+  "lighthouse-core/audits/seo/robots-txt.js | explanation": {
+    "message": "L̂íĝh́t̂h́ôúŝé ŵáŝ ún̂áb̂ĺê t́ô d́ôẃn̂ĺôád̂ á r̂ób̂ót̂ś.t̂x́t̂ f́îĺê"
+  },
+  "lighthouse-core/audits/seo/robots-txt.js | failureTitle": {
+    "message": "r̂ób̂ót̂ś.t̂x́t̂ íŝ ńôt́ v̂ál̂íd̂"
+  },
+  "lighthouse-core/audits/seo/robots-txt.js | title": {
+    "message": "r̂ób̂ót̂ś.t̂x́t̂ íŝ v́âĺîd́"
+  },
+  "lighthouse-core/audits/seo/tap-targets.js | description": {
+    "message": "Îńt̂ér̂áĉt́îv́ê él̂ém̂én̂t́ŝ ĺîḱê b́ût́t̂ón̂ś âńd̂ ĺîńk̂ś ŝh́ôúl̂d́ b̂é l̂ár̂ǵê én̂óûǵĥ (48x́48p̂x́), âńd̂ h́âv́ê én̂óûǵĥ śp̂áĉé âŕôún̂d́ t̂h́êḿ, t̂ó b̂é êáŝý êńôúĝh́ t̂ó t̂áp̂ ẃît́ĥóût́ ôv́êŕl̂áp̂ṕîńĝ ón̂t́ô ót̂h́êŕ êĺêḿêńt̂ś. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂év̂él̂óp̂ér̂ś.ĝóôǵl̂é.ĉóm̂/ẃêb́/f̂ún̂d́âḿêńt̂ál̂ś/âćĉéŝśîb́îĺît́ŷ/áĉćêśŝíb̂ĺê-śt̂ýl̂éŝ#ḿûĺt̂í-d̂év̂íĉé_r̂éŝṕôńŝív̂é_d̂éŝíĝń)."
+  },
+  "lighthouse-core/audits/seo/tap-targets.js | displayValue": {
+    "message": "{decimalProportion, number, percent} âṕp̂ŕôṕr̂íât́êĺŷ śîźêd́ t̂áp̂ t́âŕĝét̂ś"
+  },
+  "lighthouse-core/audits/seo/tap-targets.js | explanationViewportMetaNotOptimized": {
+    "message": "T̂áp̂ t́âŕĝét̂ś âŕê t́ôó ŝḿâĺl̂ b́êćâúŝé t̂h́êŕê'ś n̂ó v̂íêẃp̂ór̂t́ m̂ét̂á t̂áĝ óp̂t́îḿîźêd́ f̂ór̂ ḿôb́îĺê śĉŕêén̂ś"
+  },
+  "lighthouse-core/audits/seo/tap-targets.js | failureTitle": {
+    "message": "T̂áp̂ t́âŕĝét̂ś âŕê ńôt́ ŝíẑéd̂ áp̂ṕr̂óp̂ŕîát̂él̂ý"
+  },
+  "lighthouse-core/audits/seo/tap-targets.js | overlappingTargetHeader": {
+    "message": "Ôv́êŕl̂áp̂ṕîńĝ T́âŕĝét̂"
+  },
+  "lighthouse-core/audits/seo/tap-targets.js | sizeHeader": {
+    "message": "Ŝíẑé"
+  },
+  "lighthouse-core/audits/seo/tap-targets.js | tapTargetHeader": {
+    "message": "T̂áp̂ T́âŕĝét̂"
+  },
+  "lighthouse-core/audits/seo/tap-targets.js | title": {
+    "message": "T̂áp̂ t́âŕĝét̂ś âŕê śîźêd́ âṕp̂ŕôṕr̂íât́êĺŷ"
+  },
+  "lighthouse-core/audits/third-party-summary.js | columnMainThreadTime": {
+    "message": "M̂áîń T̂h́r̂éâd́ T̂ím̂é"
+  },
+  "lighthouse-core/audits/third-party-summary.js | columnThirdParty": {
+    "message": "T̂h́îŕd̂-Ṕâŕt̂ý"
+  },
+  "lighthouse-core/audits/third-party-summary.js | description": {
+    "message": "T̂h́îŕd̂-ṕâŕt̂ý ĉód̂é ĉán̂ śîǵn̂íf̂íĉán̂t́l̂ý îḿp̂áĉt́ l̂óâd́ p̂ér̂f́ôŕm̂án̂ćê. Ĺîḿît́ t̂h́ê ńûḿb̂ér̂ óf̂ ŕêd́ûńd̂án̂t́ t̂h́îŕd̂-ṕâŕt̂ý p̂ŕôv́îd́êŕŝ án̂d́ t̂ŕŷ t́ô ĺôád̂ t́ĥír̂d́-p̂ár̂t́ŷ ćôd́ê áf̂t́êŕ ŷóûŕ p̂áĝé ĥáŝ ṕr̂ím̂ár̂íl̂ý f̂ín̂íŝh́êd́ l̂óâd́îńĝ. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êv́êĺôṕêŕŝ.ǵôóĝĺê.ćôḿ/ŵéb̂/f́ûńd̂ám̂én̂t́âĺŝ/ṕêŕf̂ór̂ḿâńĉé/ôṕt̂ím̂íẑín̂ǵ-ĉón̂t́êńt̂-éf̂f́îćîén̂ćŷ/ĺôád̂ín̂ǵ-t̂h́îŕd̂-ṕâŕt̂ý-ĵáv̂áŝćr̂íp̂t́/)."
+  },
+  "lighthouse-core/audits/third-party-summary.js | displayValue": {
+    "message": "{itemCount, plural,\n    =1 {1 T̂h́îŕd̂-Ṕâŕt̂ý F̂óûńd̂}\n    other {# T́ĥír̂d́-P̂ár̂t́îéŝ F́ôún̂d́}\n  }"
+  },
+  "lighthouse-core/audits/third-party-summary.js | title": {
+    "message": "T̂h́îŕd̂-Ṕâŕt̂ý Ûśâǵê"
+  },
+  "lighthouse-core/audits/time-to-first-byte.js | description": {
+    "message": "T̂ím̂é T̂ó F̂ír̂śt̂ B́ŷt́ê íd̂én̂t́îf́îéŝ t́ĥé t̂ím̂é ât́ ŵh́îćĥ ýôúr̂ śêŕv̂ér̂ śêńd̂ś â ŕêśp̂ón̂śê. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êv́êĺôṕêŕŝ.ǵôóĝĺê.ćôḿ/ŵéb̂/t́ôól̂ś/l̂íĝh́t̂h́ôúŝé/âúd̂ít̂ś/t̂t́f̂b́)."
+  },
+  "lighthouse-core/audits/time-to-first-byte.js | displayValue": {
+    "message": "R̂óôt́ d̂óĉúm̂én̂t́ t̂óôḱ {timeInMs, number, milliseconds} m̂ś"
+  },
+  "lighthouse-core/audits/time-to-first-byte.js | failureTitle": {
+    "message": "R̂éd̂úĉé ŝér̂v́êŕ r̂éŝṕôńŝé t̂ím̂éŝ (T́T̂F́B̂)"
+  },
+  "lighthouse-core/audits/time-to-first-byte.js | title": {
+    "message": "Ŝér̂v́êŕ r̂éŝṕôńŝé t̂ím̂éŝ ár̂é l̂óŵ (T́T̂F́B̂)"
+  },
+  "lighthouse-core/audits/user-timings.js | columnDuration": {
+    "message": "D̂úr̂át̂íôń"
+  },
+  "lighthouse-core/audits/user-timings.js | columnName": {
+    "message": "N̂ám̂é"
+  },
+  "lighthouse-core/audits/user-timings.js | columnStartTime": {
+    "message": "Ŝt́âŕt̂ T́îḿê"
+  },
+  "lighthouse-core/audits/user-timings.js | columnType": {
+    "message": "T̂ýp̂é"
+  },
+  "lighthouse-core/audits/user-timings.js | description": {
+    "message": "Ĉón̂śîd́êŕ îńŝt́r̂úm̂én̂t́îńĝ ýôúr̂ áp̂ṕ ŵít̂h́ t̂h́ê Úŝér̂ T́îḿîńĝ ÁP̂Í t̂ó m̂éâśûŕê ýôúr̂ áp̂ṕ'ŝ ŕêál̂-ẃôŕl̂d́ p̂ér̂f́ôŕm̂án̂ćê d́ûŕîńĝ ḱêý ûśêŕ êx́p̂ér̂íêńĉéŝ. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êv́êĺôṕêŕŝ.ǵôóĝĺê.ćôḿ/ŵéb̂/t́ôól̂ś/l̂íĝh́t̂h́ôúŝé/âúd̂ít̂ś/ûśêŕ-t̂ím̂ín̂ǵ)."
+  },
+  "lighthouse-core/audits/user-timings.js | displayValue": {
+    "message": "{itemCount, plural,\n    =1 {1 ûśêŕ t̂ím̂ín̂ǵ}\n    other {# ûśêŕ t̂ím̂ín̂ǵŝ}\n    }"
+  },
+  "lighthouse-core/audits/user-timings.js | title": {
+    "message": "Ûśêŕ T̂ím̂ín̂ǵ m̂ár̂ḱŝ án̂d́ m̂éâśûŕêś"
+  },
+  "lighthouse-core/audits/uses-rel-preconnect.js | crossoriginWarning": {
+    "message": "Â ṕr̂éĉón̂ńêćt̂ <ĺîńk̂> ẃâś f̂óûńd̂ f́ôŕ \"{securityOrigin}\" b̂út̂ ẃâś n̂ót̂ úŝéd̂ b́ŷ t́ĥé b̂ŕôẃŝér̂. Ćĥéĉḱ t̂h́ât́ ŷóû ár̂é ûśîńĝ t́ĥé `ĉŕôśŝór̂íĝín̂` át̂t́r̂íb̂út̂é p̂ŕôṕêŕl̂ý."
+  },
+  "lighthouse-core/audits/uses-rel-preconnect.js | description": {
+    "message": "Ĉón̂śîd́êŕ âd́d̂ín̂ǵ p̂ŕêćôńn̂éĉt́ ôŕ d̂ńŝ-ṕr̂éf̂ét̂ćĥ ŕêśôúr̂ćê h́îńt̂ś t̂ó êśt̂áb̂ĺîśĥ éâŕl̂ý ĉón̂ńêćt̂íôńŝ t́ô ím̂ṕôŕt̂án̂t́ t̂h́îŕd̂-ṕâŕt̂ý ôŕîǵîńŝ. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://d́êv́êĺôṕêŕŝ.ǵôóĝĺê.ćôḿ/ŵéb̂/f́ûńd̂ám̂én̂t́âĺŝ/ṕêŕf̂ór̂ḿâńĉé/r̂éŝóûŕĉé-p̂ŕîór̂ít̂íẑát̂íôń#p̂ŕêćôńn̂éĉt́)."
+  },
+  "lighthouse-core/audits/uses-rel-preconnect.js | title": {
+    "message": "P̂ŕêćôńn̂éĉt́ t̂ó r̂éq̂úîŕêd́ ôŕîǵîńŝ"
+  },
+  "lighthouse-core/audits/uses-rel-preload.js | crossoriginWarning": {
+    "message": "Â ṕr̂él̂óâd́ <l̂ín̂ḱ> ŵáŝ f́ôún̂d́ f̂ór̂ \"{preloadURL}\" b́ût́ ŵáŝ ńôt́ ûśêd́ b̂ý t̂h́ê b́r̂óŵśêŕ. Ĉh́êćk̂ t́ĥát̂ ýôú âŕê úŝín̂ǵ t̂h́ê `ćr̂óŝśôŕîǵîń` ât́t̂ŕîb́ût́ê ṕr̂óp̂ér̂ĺŷ."
+  },
+  "lighthouse-core/audits/uses-rel-preload.js | description": {
+    "message": "Ĉón̂śîd́êŕ ûśîńĝ <ĺîńk̂ ŕêĺ=p̂ŕêĺôád̂> t́ô ṕr̂íôŕît́îźê f́êt́ĉh́îńĝ ŕêśôúr̂ćêś t̂h́ât́ âŕê ćûŕr̂én̂t́l̂ý r̂éq̂úêśt̂éd̂ ĺât́êŕ îń p̂áĝé l̂óâd́. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂év̂él̂óp̂ér̂ś.ĝóôǵl̂é.ĉóm̂/ẃêb́/t̂óôĺŝ/ĺîǵĥt́ĥóûśê/áûd́ît́ŝ/ṕr̂él̂óâd́)."
+  },
+  "lighthouse-core/audits/uses-rel-preload.js | title": {
+    "message": "P̂ŕêĺôád̂ ḱêý r̂éq̂úêśt̂ś"
+  },
+  "lighthouse-core/config/default-config.js | a11yAriaGroupDescription": {
+    "message": "T̂h́êśê ár̂é ôṕp̂ór̂t́ûńît́îéŝ t́ô ím̂ṕr̂óv̂é t̂h́ê úŝáĝé ôf́ ÂŔÎÁ îń ŷóûŕ âṕp̂ĺîćât́îón̂ ẃĥíĉh́ m̂áŷ én̂h́âńĉé t̂h́ê éx̂ṕêŕîén̂ćê f́ôŕ ûśêŕŝ óf̂ áŝśîśt̂ív̂é t̂éĉh́n̂ól̂óĝý, l̂ík̂é â śĉŕêén̂ ŕêád̂ér̂."
+  },
+  "lighthouse-core/config/default-config.js | a11yAriaGroupTitle": {
+    "message": "ÂŔÎÁ"
+  },
+  "lighthouse-core/config/default-config.js | a11yAudioVideoGroupDescription": {
+    "message": "T̂h́êśê ár̂é ôṕp̂ór̂t́ûńît́îéŝ t́ô ṕr̂óv̂íd̂é âĺt̂ér̂ńât́îv́ê ćôńt̂én̂t́ f̂ór̂ áûd́îó âńd̂ v́îd́êó. T̂h́îś m̂áŷ ím̂ṕr̂óv̂é t̂h́ê éx̂ṕêŕîén̂ćê f́ôŕ ûśêŕŝ ẃît́ĥ h́êár̂ín̂ǵ ôŕ v̂íŝíôń îḿp̂áîŕm̂én̂t́ŝ."
+  },
+  "lighthouse-core/config/default-config.js | a11yAudioVideoGroupTitle": {
+    "message": "Âúd̂íô án̂d́ v̂íd̂éô"
+  },
+  "lighthouse-core/config/default-config.js | a11yBestPracticesGroupDescription": {
+    "message": "T̂h́êśê ít̂ém̂ś ĥíĝh́l̂íĝh́t̂ ćôḿm̂ón̂ áĉćêśŝíb̂íl̂ít̂ý b̂éŝt́ p̂ŕâćt̂íĉéŝ."
+  },
+  "lighthouse-core/config/default-config.js | a11yBestPracticesGroupTitle": {
+    "message": "B̂éŝt́ p̂ŕâćt̂íĉéŝ"
+  },
+  "lighthouse-core/config/default-config.js | a11yCategoryDescription": {
+    "message": "T̂h́êśê ćĥéĉḱŝ h́îǵĥĺîǵĥt́ ôṕp̂ór̂t́ûńît́îéŝ t́ô [ím̂ṕr̂óv̂é t̂h́ê áĉćêśŝíb̂íl̂ít̂ý ôf́ ŷóûŕ ŵéb̂ áp̂ṕ](ĥt́t̂ṕŝ://d́êv́êĺôṕêŕŝ.ǵôóĝĺê.ćôḿ/ŵéb̂/f́ûńd̂ám̂én̂t́âĺŝ/áĉćêśŝíb̂íl̂ít̂ý). Ôńl̂ý â śûb́ŝét̂ óf̂ áĉćêśŝíb̂íl̂ít̂ý îśŝúêś ĉán̂ b́ê áût́ôḿât́îćâĺl̂ý d̂ét̂éĉt́êd́ ŝó m̂án̂úâĺ t̂éŝt́îńĝ íŝ ál̂śô én̂ćôúr̂áĝéd̂."
+  },
+  "lighthouse-core/config/default-config.js | a11yCategoryManualDescription": {
+    "message": "T̂h́êśê ít̂ém̂ś âd́d̂ŕêśŝ ár̂éâś ŵh́îćĥ án̂ áût́ôḿât́êd́ t̂éŝt́îńĝ t́ôól̂ ćâńn̂ót̂ ćôv́êŕ. L̂éâŕn̂ ḿôŕê ín̂ óûŕ ĝúîd́ê ón̂ [ćôńd̂úĉt́îńĝ án̂ áĉćêśŝíb̂íl̂ít̂ý r̂év̂íêẃ](ĥt́t̂ṕŝ://d́êv́êĺôṕêŕŝ.ǵôóĝĺê.ćôḿ/ŵéb̂/f́ûńd̂ám̂én̂t́âĺŝ/áĉćêśŝíb̂íl̂ít̂ý/ĥóŵ-t́ô-ŕêv́îéŵ)."
+  },
+  "lighthouse-core/config/default-config.js | a11yCategoryTitle": {
+    "message": "Âćĉéŝśîb́îĺît́ŷ"
+  },
+  "lighthouse-core/config/default-config.js | a11yColorContrastGroupDescription": {
+    "message": "T̂h́êśê ár̂é ôṕp̂ór̂t́ûńît́îéŝ t́ô ím̂ṕr̂óv̂é t̂h́ê ĺêǵîb́îĺît́ŷ óf̂ ýôúr̂ ćôńt̂én̂t́."
+  },
+  "lighthouse-core/config/default-config.js | a11yColorContrastGroupTitle": {
+    "message": "Ĉón̂t́r̂áŝt́"
+  },
+  "lighthouse-core/config/default-config.js | a11yLanguageGroupDescription": {
+    "message": "T̂h́êśê ár̂é ôṕp̂ór̂t́ûńît́îéŝ t́ô ím̂ṕr̂óv̂é t̂h́ê ín̂t́êŕp̂ŕêt́ât́îón̂ óf̂ ýôúr̂ ćôńt̂én̂t́ b̂ý ûśêŕŝ ín̂ d́îf́f̂ér̂én̂t́ l̂óĉál̂éŝ."
+  },
+  "lighthouse-core/config/default-config.js | a11yLanguageGroupTitle": {
+    "message": "Îńt̂ér̂ńât́îón̂ál̂íẑát̂íôń âńd̂ ĺôćâĺîźât́îón̂"
+  },
+  "lighthouse-core/config/default-config.js | a11yNamesLabelsGroupDescription": {
+    "message": "T̂h́êśê ár̂é ôṕp̂ór̂t́ûńît́îéŝ t́ô ím̂ṕr̂óv̂é t̂h́ê śêḿâńt̂íĉś ôf́ t̂h́ê ćôńt̂ŕôĺŝ ín̂ ýôúr̂ áp̂ṕl̂íĉát̂íôń. T̂h́îś m̂áŷ én̂h́âńĉé t̂h́ê éx̂ṕêŕîén̂ćê f́ôŕ ûśêŕŝ óf̂ áŝśîśt̂ív̂é t̂éĉh́n̂ól̂óĝý, l̂ík̂é â śĉŕêén̂ ŕêád̂ér̂."
+  },
+  "lighthouse-core/config/default-config.js | a11yNamesLabelsGroupTitle": {
+    "message": "N̂ám̂éŝ án̂d́ l̂áb̂él̂ś"
+  },
+  "lighthouse-core/config/default-config.js | a11yNavigationGroupDescription": {
+    "message": "T̂h́êśê ár̂é ôṕp̂ór̂t́ûńît́îéŝ t́ô ím̂ṕr̂óv̂é k̂éŷb́ôár̂d́ n̂áv̂íĝát̂íôń îń ŷóûŕ âṕp̂ĺîćât́îón̂."
+  },
+  "lighthouse-core/config/default-config.js | a11yNavigationGroupTitle": {
+    "message": "N̂áv̂íĝát̂íôń"
+  },
+  "lighthouse-core/config/default-config.js | a11yTablesListsVideoGroupDescription": {
+    "message": "T̂h́êśê ár̂é ôṕp̂ór̂t́ûńît́îéŝ t́ô t́ô ím̂ṕr̂óv̂é t̂h́ê éx̂ṕêŕîén̂ćê óf̂ ŕêád̂ín̂ǵ t̂áb̂úl̂ár̂ ór̂ ĺîśt̂ d́ât́â úŝín̂ǵ âśŝíŝt́îv́ê t́êćĥńôĺôǵŷ, ĺîḱê á ŝćr̂éêń r̂éâd́êŕ."
+  },
+  "lighthouse-core/config/default-config.js | a11yTablesListsVideoGroupTitle": {
+    "message": "T̂áb̂ĺêś âńd̂ ĺîśt̂ś"
+  },
+  "lighthouse-core/config/default-config.js | bestPracticesCategoryTitle": {
+    "message": "B̂éŝt́ P̂ŕâćt̂íĉéŝ"
+  },
+  "lighthouse-core/config/default-config.js | budgetsGroupDescription": {
+    "message": "P̂ér̂f́ôŕm̂án̂ćê b́ûd́ĝét̂ś ŝét̂ śt̂án̂d́âŕd̂ś f̂ór̂ t́ĥé p̂ér̂f́ôŕm̂án̂ćê óf̂ ýôúr̂ śît́ê."
+  },
+  "lighthouse-core/config/default-config.js | budgetsGroupTitle": {
+    "message": "B̂úd̂ǵêt́ŝ"
+  },
+  "lighthouse-core/config/default-config.js | diagnosticsGroupDescription": {
+    "message": "M̂ór̂é îńf̂ór̂ḿât́îón̂ áb̂óût́ t̂h́ê ṕêŕf̂ór̂ḿâńĉé ôf́ ŷóûŕ âṕp̂ĺîćât́îón̂."
+  },
+  "lighthouse-core/config/default-config.js | diagnosticsGroupTitle": {
+    "message": "D̂íâǵn̂óŝt́îćŝ"
+  },
+  "lighthouse-core/config/default-config.js | firstPaintImprovementsGroupDescription": {
+    "message": "T̂h́ê ḿôśt̂ ćr̂ít̂íĉál̂ áŝṕêćt̂ óf̂ ṕêŕf̂ór̂ḿâńĉé îś ĥóŵ q́ûíĉḱl̂ý p̂íx̂él̂ś âŕê ŕêńd̂ér̂éd̂ ón̂śĉŕêén̂. Ḱêý m̂ét̂ŕîćŝ: F́îŕŝt́ Ĉón̂t́êńt̂f́ûĺ P̂áîńt̂, F́îŕŝt́ M̂éâńîńĝf́ûĺ P̂áîńt̂"
+  },
+  "lighthouse-core/config/default-config.js | firstPaintImprovementsGroupTitle": {
+    "message": "F̂ír̂śt̂ Ṕâín̂t́ Îḿp̂ŕôv́êḿêńt̂ś"
+  },
+  "lighthouse-core/config/default-config.js | loadOpportunitiesGroupDescription": {
+    "message": "T̂h́êśê óp̂t́îḿîźât́îón̂ś ĉán̂ śp̂éêd́ ûṕ ŷóûŕ p̂áĝé l̂óâd́."
+  },
+  "lighthouse-core/config/default-config.js | loadOpportunitiesGroupTitle": {
+    "message": "Ôṕp̂ór̂t́ûńît́îéŝ"
+  },
+  "lighthouse-core/config/default-config.js | metricGroupTitle": {
+    "message": "M̂ét̂ŕîćŝ"
+  },
+  "lighthouse-core/config/default-config.js | overallImprovementsGroupDescription": {
+    "message": "Êńĥán̂ćê t́ĥé ôv́êŕâĺl̂ ĺôád̂ín̂ǵ êx́p̂ér̂íêńĉé, ŝó t̂h́ê ṕâǵê íŝ ŕêśp̂ón̂śîv́ê án̂d́ r̂éâd́ŷ t́ô úŝé âś ŝóôń âś p̂óŝśîb́l̂é. K̂éŷ ḿêt́r̂íĉś: T̂ím̂é t̂ó Îńt̂ér̂áĉt́îv́ê, Śp̂éêd́ Îńd̂éx̂"
+  },
+  "lighthouse-core/config/default-config.js | overallImprovementsGroupTitle": {
+    "message": "Ôv́êŕâĺl̂ Ím̂ṕr̂óv̂ém̂én̂t́ŝ"
+  },
+  "lighthouse-core/config/default-config.js | performanceCategoryTitle": {
+    "message": "P̂ér̂f́ôŕm̂án̂ćê"
+  },
+  "lighthouse-core/config/default-config.js | pwaFastReliableGroupTitle": {
+    "message": "F̂áŝt́ âńd̂ ŕêĺîáb̂ĺê"
+  },
+  "lighthouse-core/config/default-config.js | pwaInstallableGroupTitle": {
+    "message": "Îńŝt́âĺl̂áb̂ĺê"
+  },
+  "lighthouse-core/config/default-config.js | pwaOptimizedGroupTitle": {
+    "message": "P̂ẂÂ Óp̂t́îḿîźêd́"
+  },
+  "lighthouse-core/config/default-config.js | seoCategoryDescription": {
+    "message": "T̂h́êśê ćĥéĉḱŝ én̂śûŕê t́ĥát̂ ýôúr̂ ṕâǵê íŝ óp̂t́îḿîźêd́ f̂ór̂ śêár̂ćĥ én̂ǵîńê ŕêśûĺt̂ś r̂án̂ḱîńĝ. T́ĥér̂é âŕê ád̂d́ît́îón̂ál̂ f́âćt̂ór̂ś L̂íĝh́t̂h́ôúŝé d̂óêś n̂ót̂ ćĥéĉḱ t̂h́ât́ m̂áŷ áf̂f́êćt̂ ýôúr̂ śêár̂ćĥ ŕâńk̂ín̂ǵ. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://ŝúp̂ṕôŕt̂.ǵôóĝĺê.ćôḿ/ŵéb̂ḿâśt̂ér̂ś/âńŝẃêŕ/35769)."
+  },
+  "lighthouse-core/config/default-config.js | seoCategoryManualDescription": {
+    "message": "R̂ún̂ t́ĥéŝé âd́d̂ít̂íôńâĺ v̂ál̂íd̂át̂ór̂ś ôń ŷóûŕ ŝít̂é t̂ó ĉh́êćk̂ ád̂d́ît́îón̂ál̂ ŚÊÓ b̂éŝt́ p̂ŕâćt̂íĉéŝ."
+  },
+  "lighthouse-core/config/default-config.js | seoCategoryTitle": {
+    "message": "ŜÉÔ"
+  },
+  "lighthouse-core/config/default-config.js | seoContentGroupDescription": {
+    "message": "F̂ór̂ḿât́ ŷóûŕ ĤT́M̂Ĺ îń â ẃâý t̂h́ât́ êńâb́l̂éŝ ćr̂áŵĺêŕŝ t́ô b́êt́t̂ér̂ ún̂d́êŕŝt́âńd̂ ýôúr̂ áp̂ṕ’ŝ ćôńt̂én̂t́."
+  },
+  "lighthouse-core/config/default-config.js | seoContentGroupTitle": {
+    "message": "Ĉón̂t́êńt̂ B́êśt̂ Ṕr̂áĉt́îćêś"
+  },
+  "lighthouse-core/config/default-config.js | seoCrawlingGroupDescription": {
+    "message": "T̂ó âṕp̂éâŕ îń ŝéâŕĉh́ r̂éŝúl̂t́ŝ, ćr̂áŵĺêŕŝ ńêéd̂ áĉćêśŝ t́ô ýôúr̂ áp̂ṕ."
+  },
+  "lighthouse-core/config/default-config.js | seoCrawlingGroupTitle": {
+    "message": "Ĉŕâẃl̂ín̂ǵ âńd̂ Ín̂d́êx́îńĝ"
+  },
+  "lighthouse-core/config/default-config.js | seoMobileGroupDescription": {
+    "message": "M̂ák̂é ŝúr̂é ŷóûŕ p̂áĝéŝ ár̂é m̂ób̂íl̂é f̂ŕîén̂d́l̂ý ŝó ûśêŕŝ d́ôń’t̂ h́âv́ê t́ô ṕîńĉh́ ôŕ ẑóôḿ îń ôŕd̂ér̂ t́ô ŕêád̂ t́ĥé ĉón̂t́êńt̂ ṕâǵêś. [L̂éâŕn̂ ḿôŕê](h́t̂t́p̂ś://d̂év̂él̂óp̂ér̂ś.ĝóôǵl̂é.ĉóm̂/śêár̂ćĥ/ḿôb́îĺê-śît́êś/)."
+  },
+  "lighthouse-core/config/default-config.js | seoMobileGroupTitle": {
+    "message": "M̂ób̂íl̂é F̂ŕîén̂d́l̂ý"
+  },
+  "lighthouse-core/lib/i18n/i18n.js | columnCacheTTL": {
+    "message": "Ĉáĉh́ê T́T̂Ĺ"
+  },
+  "lighthouse-core/lib/i18n/i18n.js | columnLocation": {
+    "message": "L̂óĉát̂íôń"
+  },
+  "lighthouse-core/lib/i18n/i18n.js | columnRequests": {
+    "message": "R̂éq̂úêśt̂ś"
+  },
+  "lighthouse-core/lib/i18n/i18n.js | columnResourceType": {
+    "message": "R̂éŝóûŕĉé T̂ýp̂é"
+  },
+  "lighthouse-core/lib/i18n/i18n.js | columnSize": {
+    "message": "Ŝíẑé"
+  },
+  "lighthouse-core/lib/i18n/i18n.js | columnTimeSpent": {
+    "message": "T̂ím̂é Ŝṕêńt̂"
+  },
+  "lighthouse-core/lib/i18n/i18n.js | columnTransferSize": {
+    "message": "T̂ŕâńŝf́êŕ Ŝíẑé"
+  },
+  "lighthouse-core/lib/i18n/i18n.js | columnURL": {
+    "message": "ÛŔL̂"
+  },
+  "lighthouse-core/lib/i18n/i18n.js | columnWastedBytes": {
+    "message": "P̂ót̂én̂t́îál̂ Śâv́îńĝś"
+  },
+  "lighthouse-core/lib/i18n/i18n.js | columnWastedMs": {
+    "message": "P̂ót̂én̂t́îál̂ Śâv́îńĝś"
+  },
+  "lighthouse-core/lib/i18n/i18n.js | displayValueByteSavings": {
+    "message": "P̂ót̂én̂t́îál̂ śâv́îńĝś ôf́ {wastedBytes, number, bytes} K̂B́"
+  },
+  "lighthouse-core/lib/i18n/i18n.js | displayValueMsSavings": {
+    "message": "P̂ót̂én̂t́îál̂ śâv́îńĝś ôf́ {wastedMs, number, milliseconds} m̂ś"
+  },
+  "lighthouse-core/lib/i18n/i18n.js | documentResourceType": {
+    "message": "D̂óĉúm̂én̂t́"
+  },
+  "lighthouse-core/lib/i18n/i18n.js | fontResourceType": {
+    "message": "F̂ón̂t́"
+  },
+  "lighthouse-core/lib/i18n/i18n.js | imageResourceType": {
+    "message": "Îḿâǵê"
+  },
+  "lighthouse-core/lib/i18n/i18n.js | mediaResourceType": {
+    "message": "M̂éd̂íâ"
+  },
+  "lighthouse-core/lib/i18n/i18n.js | ms": {
+    "message": "{timeInMs, number, milliseconds} m̂ś"
+  },
+  "lighthouse-core/lib/i18n/i18n.js | otherResourceType": {
+    "message": "Ôt́ĥér̂"
+  },
+  "lighthouse-core/lib/i18n/i18n.js | scriptResourceType": {
+    "message": "Ŝćr̂íp̂t́"
+  },
+  "lighthouse-core/lib/i18n/i18n.js | seconds": {
+    "message": "{timeInMs, number, seconds} ŝ"
+  },
+  "lighthouse-core/lib/i18n/i18n.js | stylesheetResourceType": {
+    "message": "Ŝt́ŷĺêśĥéêt́"
+  },
+  "lighthouse-core/lib/i18n/i18n.js | thirdPartyResourceType": {
+    "message": "T̂h́îŕd̂-ṕâŕt̂ý"
+  },
+  "lighthouse-core/lib/i18n/i18n.js | totalResourceType": {
+    "message": "T̂ót̂ál̂"
+  },
+  "lighthouse-core/lib/lh-error.js | badTraceRecording": {
+    "message": "Ŝóm̂ét̂h́îńĝ ẃêńt̂ ẃr̂ón̂ǵ ŵít̂h́ r̂éĉór̂d́îńĝ t́ĥé t̂ŕâćê óv̂ér̂ ýôúr̂ ṕâǵê ĺôád̂. Ṕl̂éâśê ŕûń L̂íĝh́t̂h́ôúŝé âǵâín̂. ({errorCode})"
+  },
+  "lighthouse-core/lib/lh-error.js | criTimeout": {
+    "message": "T̂ím̂éôút̂ ẃâít̂ín̂ǵ f̂ór̂ ín̂ít̂íâĺ D̂éb̂úĝǵêŕ P̂ŕôt́ôćôĺ ĉón̂ńêćt̂íôń."
+  },
+  "lighthouse-core/lib/lh-error.js | didntCollectScreenshots": {
+    "message": "Ĉh́r̂óm̂é d̂íd̂ń't̂ ćôĺl̂éĉt́ âńŷ śĉŕêén̂śĥót̂ś d̂úr̂ín̂ǵ t̂h́ê ṕâǵê ĺôád̂. Ṕl̂éâśê ḿâḱê śûŕê t́ĥér̂é îś ĉón̂t́êńt̂ v́îśîb́l̂é ôń t̂h́ê ṕâǵê, án̂d́ t̂h́êń t̂ŕŷ ŕê-ŕûńn̂ín̂ǵ L̂íĝh́t̂h́ôúŝé. ({errorCode})"
+  },
+  "lighthouse-core/lib/lh-error.js | dnsFailure": {
+    "message": "D̂ŃŜ śêŕv̂ér̂ś ĉóûĺd̂ ńôt́ r̂éŝól̂v́ê t́ĥé p̂ŕôv́îd́êd́ d̂óm̂áîń."
+  },
+  "lighthouse-core/lib/lh-error.js | internalChromeError": {
+    "message": "Âń îńt̂ér̂ńâĺ Ĉh́r̂óm̂é êŕr̂ór̂ óĉćûŕr̂éd̂. Ṕl̂éâśê ŕêśt̂ár̂t́ Ĉh́r̂óm̂é âńd̂ t́r̂ý r̂é-r̂ún̂ńîńĝ Ĺîǵĥt́ĥóûśê."
+  },
+  "lighthouse-core/lib/lh-error.js | pageLoadFailed": {
+    "message": "L̂íĝh́t̂h́ôúŝé ŵáŝ ún̂áb̂ĺê t́ô ŕêĺîáb̂ĺŷ ĺôád̂ t́ĥé p̂áĝé ŷóû ŕêq́ûéŝt́êd́. M̂ák̂é ŝúr̂é ŷóû ár̂é t̂éŝt́îńĝ t́ĥé ĉór̂ŕêćt̂ ÚR̂Ĺ âńd̂ t́ĥát̂ t́ĥé ŝér̂v́êŕ îś p̂ŕôṕêŕl̂ý r̂éŝṕôńd̂ín̂ǵ t̂ó âĺl̂ ŕêq́ûéŝt́ŝ."
+  },
+  "lighthouse-core/lib/lh-error.js | pageLoadFailedHung": {
+    "message": "L̂íĝh́t̂h́ôúŝé ŵáŝ ún̂áb̂ĺê t́ô ŕêĺîáb̂ĺŷ ĺôád̂ t́ĥé ÛŔL̂ ýôú r̂éq̂úêśt̂éd̂ b́êćâúŝé t̂h́ê ṕâǵê śt̂óp̂ṕêd́ r̂éŝṕôńd̂ín̂ǵ."
+  },
+  "lighthouse-core/lib/lh-error.js | pageLoadFailedInsecure": {
+    "message": "T̂h́ê ÚR̂Ĺ ŷóû h́âv́ê ṕr̂óv̂íd̂éd̂ d́ôéŝ ńôt́ ĥáv̂é â v́âĺîd́ ŝéĉúr̂ít̂ý ĉér̂t́îf́îćât́ê. {securityMessages}"
+  },
+  "lighthouse-core/lib/lh-error.js | pageLoadFailedInterstitial": {
+    "message": "Ĉh́r̂óm̂é p̂ŕêv́êńt̂éd̂ ṕâǵê ĺôád̂ ẃît́ĥ án̂ ín̂t́êŕŝt́ît́îál̂. Ḿâḱê śûŕê ýôú âŕê t́êśt̂ín̂ǵ t̂h́ê ćôŕr̂éĉt́ ÛŔL̂ án̂d́ t̂h́ât́ t̂h́ê śêŕv̂ér̂ íŝ ṕr̂óp̂ér̂ĺŷ ŕêśp̂ón̂d́îńĝ t́ô ál̂ĺ r̂éq̂úêśt̂ś."
+  },
+  "lighthouse-core/lib/lh-error.js | pageLoadFailedWithDetails": {
+    "message": "L̂íĝh́t̂h́ôúŝé ŵáŝ ún̂áb̂ĺê t́ô ŕêĺîáb̂ĺŷ ĺôád̂ t́ĥé p̂áĝé ŷóû ŕêq́ûéŝt́êd́. M̂ák̂é ŝúr̂é ŷóû ár̂é t̂éŝt́îńĝ t́ĥé ĉór̂ŕêćt̂ ÚR̂Ĺ âńd̂ t́ĥát̂ t́ĥé ŝér̂v́êŕ îś p̂ŕôṕêŕl̂ý r̂éŝṕôńd̂ín̂ǵ t̂ó âĺl̂ ŕêq́ûéŝt́ŝ. (D́êt́âíl̂ś: {errorDetails})"
+  },
+  "lighthouse-core/lib/lh-error.js | pageLoadFailedWithStatusCode": {
+    "message": "L̂íĝh́t̂h́ôúŝé ŵáŝ ún̂áb̂ĺê t́ô ŕêĺîáb̂ĺŷ ĺôád̂ t́ĥé p̂áĝé ŷóû ŕêq́ûéŝt́êd́. M̂ák̂é ŝúr̂é ŷóû ár̂é t̂éŝt́îńĝ t́ĥé ĉór̂ŕêćt̂ ÚR̂Ĺ âńd̂ t́ĥát̂ t́ĥé ŝér̂v́êŕ îś p̂ŕôṕêŕl̂ý r̂éŝṕôńd̂ín̂ǵ t̂ó âĺl̂ ŕêq́ûéŝt́ŝ. (Śt̂át̂úŝ ćôd́ê: {statusCode})"
+  },
+  "lighthouse-core/lib/lh-error.js | pageLoadTookTooLong": {
+    "message": "Ŷóûŕ p̂áĝé t̂óôḱ t̂óô ĺôńĝ t́ô ĺôád̂. Ṕl̂éâśê f́ôĺl̂óŵ t́ĥé ôṕp̂ór̂t́ûńît́îéŝ ín̂ t́ĥé r̂ép̂ór̂t́ t̂ó r̂éd̂úĉé ŷóûŕ p̂áĝé l̂óâd́ t̂ím̂é, âńd̂ t́ĥén̂ t́r̂ý r̂é-r̂ún̂ńîńĝ Ĺîǵĥt́ĥóûśê. ({errorCode})"
+  },
+  "lighthouse-core/lib/lh-error.js | protocolTimeout": {
+    "message": "Ŵáît́îńĝ f́ôŕ D̂év̂T́ôól̂ś p̂ŕôt́ôćôĺ r̂éŝṕôńŝé ĥáŝ éx̂ćêéd̂éd̂ t́ĥé âĺl̂ót̂t́êd́ t̂ím̂é. (M̂ét̂h́ôd́: {protocolMethod})"
+  },
+  "lighthouse-core/lib/lh-error.js | requestContentTimeout": {
+    "message": "F̂ét̂ćĥín̂ǵ r̂éŝóûŕĉé ĉón̂t́êńt̂ h́âś êx́ĉéêd́êd́ t̂h́ê ál̂ĺôt́t̂éd̂ t́îḿê"
+  },
+  "lighthouse-core/lib/lh-error.js | urlInvalid": {
+    "message": "T̂h́ê ÚR̂Ĺ ŷóû h́âv́ê ṕr̂óv̂íd̂éd̂ áp̂ṕêár̂ś t̂ó b̂é îńv̂ál̂íd̂."
+  },
+  "lighthouse-core/report/html/renderer/util.js | auditGroupExpandTooltip": {
+    "message": "Ŝh́ôẃ âúd̂ít̂ś"
+  },
+  "lighthouse-core/report/html/renderer/util.js | crcInitialNavigation": {
+    "message": "Îńît́îál̂ Ńâv́îǵât́îón̂"
+  },
+  "lighthouse-core/report/html/renderer/util.js | crcLongestDurationLabel": {
+    "message": "M̂áx̂ím̂úm̂ ćr̂ít̂íĉál̂ ṕât́ĥ ĺât́êńĉý:"
+  },
+  "lighthouse-core/report/html/renderer/util.js | errorLabel": {
+    "message": "Êŕr̂ór̂!"
+  },
+  "lighthouse-core/report/html/renderer/util.js | errorMissingAuditInfo": {
+    "message": "R̂ép̂ór̂t́ êŕr̂ór̂: ńô áûd́ît́ îńf̂ór̂ḿât́îón̂"
+  },
+  "lighthouse-core/report/html/renderer/util.js | labDataTitle": {
+    "message": "L̂áb̂ D́ât́â"
+  },
+  "lighthouse-core/report/html/renderer/util.js | lsPerformanceCategoryDescription": {
+    "message": "[L̂íĝh́t̂h́ôúŝé](ĥt́t̂ṕŝ://d́êv́êĺôṕêŕŝ.ǵôóĝĺê.ćôḿ/ŵéb̂/t́ôól̂ś/l̂íĝh́t̂h́ôúŝé/) âńâĺŷśîś ôf́ t̂h́ê ćûŕr̂én̂t́ p̂áĝé ôń âń êḿûĺât́êd́ m̂ób̂íl̂é n̂ét̂ẃôŕk̂. V́âĺûéŝ ár̂é êśt̂ím̂át̂éd̂ án̂d́ m̂áŷ v́âŕŷ."
+  },
+  "lighthouse-core/report/html/renderer/util.js | manualAuditsGroupTitle": {
+    "message": "Âd́d̂ít̂íôńâĺ ît́êḿŝ t́ô ḿâńûál̂ĺŷ ćĥéĉḱ"
+  },
+  "lighthouse-core/report/html/renderer/util.js | notApplicableAuditsGroupTitle": {
+    "message": "N̂ót̂ áp̂ṕl̂íĉáb̂ĺê"
+  },
+  "lighthouse-core/report/html/renderer/util.js | opportunityResourceColumnLabel": {
+    "message": "Ôṕp̂ór̂t́ûńît́ŷ"
+  },
+  "lighthouse-core/report/html/renderer/util.js | opportunitySavingsColumnLabel": {
+    "message": "Êśt̂ím̂át̂éd̂ Śâv́îńĝś"
+  },
+  "lighthouse-core/report/html/renderer/util.js | passedAuditsGroupTitle": {
+    "message": "P̂áŝśêd́ âúd̂ít̂ś"
+  },
+  "lighthouse-core/report/html/renderer/util.js | snippetCollapseButtonLabel": {
+    "message": "Ĉól̂ĺâṕŝé ŝńîṕp̂ét̂"
+  },
+  "lighthouse-core/report/html/renderer/util.js | snippetExpandButtonLabel": {
+    "message": "Êx́p̂án̂d́ ŝńîṕp̂ét̂"
+  },
+  "lighthouse-core/report/html/renderer/util.js | thirdPartyResourcesLabel": {
+    "message": "Ŝh́ôẃ 3r̂d́-p̂ár̂t́ŷ ŕêśôúr̂ćêś"
+  },
+  "lighthouse-core/report/html/renderer/util.js | toplevelWarningsMessage": {
+    "message": "T̂h́êŕê ẃêŕê íŝśûéŝ áf̂f́êćt̂ín̂ǵ t̂h́îś r̂ún̂ óf̂ Ĺîǵĥt́ĥóûśê:"
+  },
+  "lighthouse-core/report/html/renderer/util.js | varianceDisclaimer": {
+    "message": "V̂ál̂úêś âŕê éŝt́îḿât́êd́ âńd̂ ḿâý v̂ár̂ý."
+  },
+  "lighthouse-core/report/html/renderer/util.js | warningAuditsGroupTitle": {
+    "message": "P̂áŝśêd́ âúd̂ít̂ś b̂út̂ ẃît́ĥ ẃâŕn̂ín̂ǵŝ"
+  },
+  "lighthouse-core/report/html/renderer/util.js | warningHeader": {
+    "message": "Ŵár̂ńîńĝś: "
+  }
+}
diff --git a/lighthouse-core/scripts/i18n/collect-strings.js b/lighthouse-core/scripts/i18n/collect-strings.js
index d266c8c72a21..ddd9933ff13f 100644
--- a/lighthouse-core/scripts/i18n/collect-strings.js
+++ b/lighthouse-core/scripts/i18n/collect-strings.js
@@ -100,8 +100,48 @@ function collectAllStringsInDir(dir, strings = {}) {
 /**
  * @param {Record<string, ICUMessageDefn>} strings
  */
-function writeEnStringsToLocaleFormat(strings) {
-  const fullPath = path.join(LH_ROOT, `lighthouse-core/lib/i18n/en-US.json`);
+function createPsuedoLocaleStrings(strings) {
+  /** @type {Record<string, ICUMessageDefn>} */
+  const psuedoLocalizedStrings = {};
+  for (const [key, defn] of Object.entries(strings)) {
+    const message = defn.message;
+    const psuedoLocalizedString = [];
+    let braceCount = 0;
+    let useHatForAccentMark = true;
+    for (const char of message) {
+      psuedoLocalizedString.push(char);
+      if (char === '{') {
+        braceCount++;
+      } else if (char === '}') {
+        braceCount--;
+      }
+
+      // Hack to not change {plural{ICU}braces} nested an odd number of times.
+      // ex: "{itemCount, plural, =1 {1 link found} other {# links found}}"
+      // becomes "{itemCount, plural, =1 {1 l̂ín̂ḱ f̂óûńd̂} other {# ĺîńk̂ś f̂óûńd̂}}"
+      // ex: "{itemCount, plural, =1 {1 link {nested_replacement} found} other {# links {nested_replacement} found}}"
+      // becomes: "{itemCount, plural, =1 {1 l̂ín̂ḱ {nested_replacement} f̂óûńd̂} other {# ĺîńk̂ś {nested_replacement} f̂óûńd̂}}"
+      if (braceCount % 2 === 1) continue;
+
+      // Add diacritical marks to the preceding letter, alternating between a hat ( ̂) and an acute (´).
+      if (/[a-z]/i.test(char)) {
+        psuedoLocalizedString.push(useHatForAccentMark ? `\u0302` : `\u0301`);
+        useHatForAccentMark = !useHatForAccentMark;
+      }
+    }
+
+    psuedoLocalizedStrings[key] = {message: psuedoLocalizedString.join('')};
+  }
+
+  return psuedoLocalizedStrings;
+}
+
+/**
+ * @param {string} locale
+ * @param {Record<string, ICUMessageDefn>} strings
+ */
+function writeStringsToLocaleFormat(locale, strings) {
+  const fullPath = path.join(LH_ROOT, `lighthouse-core/lib/i18n/${locale}.json`);
   /** @type {Record<string, ICUMessageDefn>} */
   const output = {};
   const sortedEntries = Object.entries(strings).sort(([keyA], [keyB]) => keyA.localeCompare(keyB));
@@ -113,10 +153,12 @@ function writeEnStringsToLocaleFormat(strings) {
 }
 
 const strings = collectAllStringsInDir(path.join(LH_ROOT, 'lighthouse-core'));
+const psuedoLocalizedStrings = createPsuedoLocaleStrings(strings);
 console.log('Collected from LH core!');
 
 collectAllStringsInDir(path.join(LH_ROOT, 'stack-packs/packs'), strings);
 console.log('Collected from Stack Packs!');
 
-writeEnStringsToLocaleFormat(strings);
+writeStringsToLocaleFormat('en-US', strings);
+writeStringsToLocaleFormat('locales/en-XL', psuedoLocalizedStrings);
 console.log('Written to disk!');
diff --git a/types/externs.d.ts b/types/externs.d.ts
index ded65e95fb99..008e88d583f2 100644
--- a/types/externs.d.ts
+++ b/types/externs.d.ts
@@ -74,7 +74,7 @@ declare global {
       serverResponseTimeByOrigin: {[origin: string]: number};
     }
 
-    export type Locale = 'en-US'|'en'|'en-AU'|'en-GB'|'en-IE'|'en-SG'|'en-ZA'|'en-IN'|'ar-XB'|'ar'|'bg'|'bs'|'ca'|'cs'|'da'|'de'|'el'|'en-XA'|'es'|'es-419'|'es-AR'|'es-BO'|'es-BR'|'es-BZ'|'es-CL'|'es-CO'|'es-CR'|'es-CU'|'es-DO'|'es-EC'|'es-GT'|'es-HN'|'es-MX'|'es-NI'|'es-PA'|'es-PE'|'es-PR'|'es-PY'|'es-SV'|'es-US'|'es-UY'|'es-VE'|'fi'|'fil'|'fr'|'he'|'hi'|'hr'|'hu'|'gsw'|'id'|'in'|'it'|'iw'|'ja'|'ko'|'ln'|'lt'|'lv'|'mo'|'nl'|'nb'|'no'|'pl'|'pt'|'pt-PT'|'ro'|'ru'|'sk'|'sl'|'sr'|'sr-Latn'|'sv'|'ta'|'te'|'th'|'tl'|'tr'|'uk'|'vi'|'zh'|'zh-HK'|'zh-TW';
+    export type Locale = 'en-US'|'en'|'en-AU'|'en-GB'|'en-IE'|'en-SG'|'en-ZA'|'en-IN'|'ar-XB'|'ar'|'bg'|'bs'|'ca'|'cs'|'da'|'de'|'el'|'en-XA'|'en-XL'|'es'|'es-419'|'es-AR'|'es-BO'|'es-BR'|'es-BZ'|'es-CL'|'es-CO'|'es-CR'|'es-CU'|'es-DO'|'es-EC'|'es-GT'|'es-HN'|'es-MX'|'es-NI'|'es-PA'|'es-PE'|'es-PR'|'es-PY'|'es-SV'|'es-US'|'es-UY'|'es-VE'|'fi'|'fil'|'fr'|'he'|'hi'|'hr'|'hu'|'gsw'|'id'|'in'|'it'|'iw'|'ja'|'ko'|'ln'|'lt'|'lv'|'mo'|'nl'|'nb'|'no'|'pl'|'pt'|'pt-PT'|'ro'|'ru'|'sk'|'sl'|'sr'|'sr-Latn'|'sv'|'ta'|'te'|'th'|'tl'|'tr'|'uk'|'vi'|'zh'|'zh-HK'|'zh-TW';
 
     export type OutputMode = 'json' | 'html' | 'csv';
 

From 042d831c6cb1b55f3d62760bb8c95d8ee1c7094e Mon Sep 17 00:00:00 2001
From: Connor Clark <cjamcl@google.com>
Date: Thu, 27 Jun 2019 06:46:30 -0700
Subject: [PATCH 063/110] misc: yarn static-server (#9293)

---
 package.json | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 556bc7f4c94e..8a7effe65ebf 100644
--- a/package.json
+++ b/package.json
@@ -61,7 +61,8 @@
     "mixed-content": "./lighthouse-cli/index.js --chrome-flags='--headless' --preset=mixed-content",
     "minify-latest-run": "./lighthouse-core/scripts/lantern/minify-trace.js ./latest-run/defaultPass.trace.json ./latest-run/defaultPass.trace.min.json && ./lighthouse-core/scripts/lantern/minify-devtoolslog.js ./latest-run/defaultPass.devtoolslog.json ./latest-run/defaultPass.devtoolslog.min.json",
     "compile-proto": "protoc --python_out=./ ./proto/lighthouse-result.proto && mv ./proto/*_pb2.py ./proto/scripts || (echo \"❌ Install protobuf ≥ 3.7.1 to compile the proto file.\" && false)",
-    "build-proto-roundtrip": "cd proto/scripts && PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION=cpp PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION_VERSION=2 python json_roundtrip_via_proto.py"
+    "build-proto-roundtrip": "cd proto/scripts && PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION=cpp PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION_VERSION=2 python json_roundtrip_via_proto.py",
+    "static-server": "node lighthouse-cli/test/fixtures/static-server.js"
   },
   "devDependencies": {
     "@firebase/app-types": "0.3.1",

From a26d38f86a00e294f226b05222f83bc960de71c9 Mon Sep 17 00:00:00 2001
From: Brendan Kenny <bckenny@gmail.com>
Date: Thu, 27 Jun 2019 10:48:47 -0700
Subject: [PATCH 064/110] core(config): assert all audit requiredArtifacts will
 be gathered (#9284)

---
 lighthouse-core/config/config.js           | 36 ++++++++++++++
 lighthouse-core/lib/i18n/en-US.json        |  8 ++++
 lighthouse-core/lib/lh-error.js            | 22 +++++++++
 lighthouse-core/runner.js                  | 11 +++--
 lighthouse-core/test/config/config-test.js | 56 ++++++++++++++++++++--
 5 files changed, 126 insertions(+), 7 deletions(-)

diff --git a/lighthouse-core/config/config.js b/lighthouse-core/config/config.js
index 2a857035e5db..f506b5f5c30d 100644
--- a/lighthouse-core/config/config.js
+++ b/lighthouse-core/config/config.js
@@ -22,6 +22,28 @@ const {requireAudits, mergeOptionsOfItems, resolveModule} = require('./config-he
 /** @typedef {typeof import('../gather/gatherers/gatherer.js')} GathererConstructor */
 /** @typedef {InstanceType<GathererConstructor>} Gatherer */
 
+/**
+ * Define with object literal so that tsc will require it to stay updated.
+ * @type {Record<keyof LH.BaseArtifacts, ''>}
+ */
+const BASE_ARTIFACT_BLANKS = {
+  fetchTime: '',
+  LighthouseRunWarnings: '',
+  TestedAsMobileDevice: '',
+  HostUserAgent: '',
+  NetworkUserAgent: '',
+  BenchmarkIndex: '',
+  WebAppManifest: '',
+  Stacks: '',
+  traces: '',
+  devtoolsLogs: '',
+  settings: '',
+  URL: '',
+  Timing: '',
+  PageLoadError: '',
+};
+const BASE_ARTIFACT_NAMES = Object.keys(BASE_ARTIFACT_BLANKS);
+
 /**
  * @param {Config['passes']} passes
  * @param {Config['audits']} audits
@@ -32,11 +54,14 @@ function assertValidPasses(passes, audits) {
   }
 
   const requiredGatherers = Config.getGatherersNeededByAudits(audits);
+  // Base artifacts are provided by GatherRunner, so start foundGatherers with them.
+  const foundGatherers = new Set(BASE_ARTIFACT_NAMES);
 
   // Log if we are running gathers that are not needed by the audits listed in the config
   passes.forEach(pass => {
     pass.gatherers.forEach(gathererDefn => {
       const gatherer = gathererDefn.instance;
+      foundGatherers.add(gatherer.name);
       const isGatherRequiredByAudits = requiredGatherers.has(gatherer.name);
       if (!isGatherRequiredByAudits) {
         const msg = `${gatherer.name} gatherer requested, however no audit requires it.`;
@@ -45,6 +70,17 @@ function assertValidPasses(passes, audits) {
     });
   });
 
+  // All required gatherers must be found in the config. Throw otherwise.
+  for (const auditDefn of audits || []) {
+    const auditMeta = auditDefn.implementation.meta;
+    for (const requiredArtifact of auditMeta.requiredArtifacts) {
+      if (!foundGatherers.has(requiredArtifact)) {
+        throw new Error(`${requiredArtifact} gatherer, required by audit ${auditMeta.id}, ` +
+            'was not found in config.');
+      }
+    }
+  }
+
   // Passes must have unique `passName`s. Throw otherwise.
   const usedNames = new Set();
   passes.forEach(pass => {
diff --git a/lighthouse-core/lib/i18n/en-US.json b/lighthouse-core/lib/i18n/en-US.json
index 95ed40853a4d..b0dd8ba42de2 100644
--- a/lighthouse-core/lib/i18n/en-US.json
+++ b/lighthouse-core/lib/i18n/en-US.json
@@ -1671,10 +1671,18 @@
     "message": "DNS servers could not resolve the provided domain.",
     "description": "Error message explaining that the requested page could not be resolved by the DNS server."
   },
+  "lighthouse-core/lib/lh-error.js | erroredRequiredArtifact": {
+    "message": "Required {artifactName} gatherer encountered an error: {errorMessage}",
+    "description": "Error message explaning that there was an error while trying to collect a resource that was required for testing. \"artifactName\" will be replaced with the name of the resource that wasn't collected; \"errorMessage\" will be replaced with a string description of the error that occurred."
+  },
   "lighthouse-core/lib/lh-error.js | internalChromeError": {
     "message": "An internal Chrome error occurred. Please restart Chrome and try re-running Lighthouse.",
     "description": "Error message explaining that Chrome has encountered an error during the Lighthouse run, and that Chrome should be restarted."
   },
+  "lighthouse-core/lib/lh-error.js | missingRequiredArtifact": {
+    "message": "Required {artifactName} gatherer did not run.",
+    "description": "Error message explaning that a resource that was required for testing was never collected. \"artifactName\" will be replaced with the name of the resource that wasn't collected."
+  },
   "lighthouse-core/lib/lh-error.js | pageLoadFailed": {
     "message": "Lighthouse was unable to reliably load the page you requested. Make sure you are testing the correct URL and that the server is properly responding to all requests.",
     "description": "Error message explaining that Lighthouse could not load the requested URL and the steps that might be taken to fix the unreliability."
diff --git a/lighthouse-core/lib/lh-error.js b/lighthouse-core/lib/lh-error.js
index cf2c5be0df63..63804c1acfb8 100644
--- a/lighthouse-core/lib/lh-error.js
+++ b/lighthouse-core/lib/lh-error.js
@@ -39,6 +39,10 @@ const UIStrings = {
   pageLoadFailedHung: 'Lighthouse was unable to reliably load the URL you requested because the page stopped responding.',
   /** Error message explaining that Lighthouse timed out while waiting for the initial connection to the Chrome Devtools protocol. */
   criTimeout: 'Timeout waiting for initial Debugger Protocol connection.',
+  /** Error message explaning that a resource that was required for testing was never collected. "artifactName" will be replaced with the name of the resource that wasn't collected. */
+  missingRequiredArtifact: 'Required {artifactName} gatherer did not run.',
+  /** Error message explaning that there was an error while trying to collect a resource that was required for testing. "artifactName" will be replaced with the name of the resource that wasn't collected; "errorMessage" will be replaced with a string description of the error that occurred. */
+  erroredRequiredArtifact: 'Required {artifactName} gatherer encountered an error: {errorMessage}',
 };
 
 const str_ = i18n.createMessageInstanceIdFn(__filename, UIStrings);
@@ -245,6 +249,24 @@ const ERRORS = {
     lhrRuntimeError: true,
   },
 
+  /**
+   * Error internal to Runner used when an artifact required for an audit is missing.
+   * Requires an additional `artifactName` field for translation.
+  */
+  MISSING_REQUIRED_ARTIFACT: {
+    code: 'MISSING_REQUIRED_ARTIFACT',
+    message: UIStrings.missingRequiredArtifact,
+  },
+
+  /**
+   * Error internal to Runner used when an artifact required for an audit was an error.
+   * Requires additional `artifactName` and `errorMessage` fields for translation.
+  */
+  ERRORED_REQUIRED_ARTIFACT: {
+    code: 'ERRORED_REQUIRED_ARTIFACT',
+    message: UIStrings.erroredRequiredArtifact,
+  },
+
   // Hey! When adding a new error type, update lighthouse-result.proto too.
 };
 
diff --git a/lighthouse-core/runner.js b/lighthouse-core/runner.js
index a798eda2edd8..17ddd676b074 100644
--- a/lighthouse-core/runner.js
+++ b/lighthouse-core/runner.js
@@ -296,7 +296,7 @@ class Runner {
         if (noArtifact || noTrace) {
           log.warn('Runner',
               `${artifactName} gatherer, required by audit ${audit.meta.id}, did not run.`);
-          throw new Error(`Required ${artifactName} gatherer did not run.`);
+          throw new LHError(LHError.errors.MISSING_REQUIRED_ARTIFACT, {artifactName});
         }
 
         // If artifact was an error, output error result on behalf of audit.
@@ -314,8 +314,8 @@ class Runner {
             ` encountered an error: ${artifactError.message}`);
 
           // Create a friendlier display error and mark it as expected to avoid duplicates in Sentry
-          const error = new Error(
-              `Required ${artifactName} gatherer encountered an error: ${artifactError.message}`);
+          const error = new LHError(LHError.errors.ERRORED_REQUIRED_ARTIFACT,
+              {artifactName, errorMessage: artifactError.message});
           // @ts-ignore Non-standard property added to Error
           error.expected = true;
           throw error;
@@ -340,7 +340,10 @@ class Runner {
       const product = await audit.audit(requiredArtifacts, auditContext);
       auditResult = Audit.generateAuditResult(audit, product);
     } catch (err) {
-      log.warn(audit.meta.id, `Caught exception: ${err.message}`);
+      // Log error if it hasn't already been logged above.
+      if (err.code !== 'MISSING_REQUIRED_ARTIFACT' && err.code !== 'ERRORED_REQUIRED_ARTIFACT') {
+        log.warn(audit.meta.id, `Caught exception: ${err.message}`);
+      }
 
       Sentry.captureException(err, {tags: {audit: audit.meta.id}, level: 'error'});
       // Errors become error audit result.
diff --git a/lighthouse-core/test/config/config-test.js b/lighthouse-core/test/config/config-test.js
index ee4772668e93..c3700008fe77 100644
--- a/lighthouse-core/test/config/config-test.js
+++ b/lighthouse-core/test/config/config-test.js
@@ -30,7 +30,7 @@ describe('Config', () => {
     assert.notEqual(config, newConfig);
   });
 
-  it('doesn\'t change directly injected plugins', () => {
+  it('doesn\'t change directly injected gatherer implementations', () => {
     class MyGatherer extends Gatherer {}
     class MyAudit extends Audit {
       static get meta() {
@@ -45,7 +45,7 @@ describe('Config', () => {
       static audit() {}
     }
     const config = {
-      // Extend to default to double test our ability to handle plugins
+      // Extend default to double test our ability to handle injection.
       extends: 'lighthouse:default',
       settings: {onlyAudits: ['my-audit']},
       passes: [{
@@ -58,7 +58,7 @@ describe('Config', () => {
     assert.equal(MyAudit, newConfig.audits[0].implementation);
   });
 
-  it('doesn\'t change directly injected plugin instances', () => {
+  it('doesn\'t change directly injected gatherer instances', () => {
     class MyGatherer extends Gatherer {
       constructor(secretVal) {
         super();
@@ -120,6 +120,56 @@ describe('Config', () => {
     );
   });
 
+  it('throws when an audit requires an artifact with no gatherer supplying it', async () => {
+    class NeedsWhatYouCantGive extends Audit {
+      static get meta() {
+        return {
+          id: 'missing-artifact-audit',
+          title: 'none',
+          description: 'none',
+          requiredArtifacts: [
+            // Require fake artifact amidst base artifact and default artifacts.
+            'URL',
+            'ConsoleMessages',
+            'VRMLElements', // not a real gatherer
+            'ViewportDimensions',
+          ],
+        };
+      }
+
+      static audit() {}
+    }
+
+    expect(() => new Config({
+      extends: 'lighthouse:default',
+      audits: [NeedsWhatYouCantGive],
+    // eslint-disable-next-line max-len
+    })).toThrow('VRMLElements gatherer, required by audit missing-artifact-audit, was not found in config');
+  });
+
+  it('does not throw when an audit requires only base artifacts', () => {
+    class BaseArtifactsAudit extends Audit {
+      static get meta() {
+        return {
+          id: 'base-artifacts-audit',
+          title: 'base',
+          description: 'base',
+          requiredArtifacts: ['HostUserAgent', 'URL', 'Stacks', 'WebAppManifest'],
+        };
+      }
+
+      static audit() {}
+    }
+
+    const config = new Config({
+      extends: 'lighthouse:default',
+      audits: [BaseArtifactsAudit],
+    }, {onlyAudits: ['base-artifacts-audit']});
+
+    assert.strictEqual(config.audits.length, 1);
+    assert.strictEqual(config.audits[0].implementation.meta.id, 'base-artifacts-audit');
+  });
+
   it('throws for unknown gatherers', () => {
     const config = {
       passes: [{

From de820ec3f24a1fbc7a0a27cdb916b322e72d15d0 Mon Sep 17 00:00:00 2001
From: Brendan Kenny <bckenny@gmail.com>
Date: Thu, 27 Jun 2019 12:23:31 -0700
Subject: [PATCH 065/110] misc(runner): add assertion for devtoolsLog as
 requiredArtifact (#9290)

---
 lighthouse-core/runner.js           | 10 ++++++----
 lighthouse-core/test/runner-test.js | 18 ++++++++++++++++++
 2 files changed, 24 insertions(+), 4 deletions(-)

diff --git a/lighthouse-core/runner.js b/lighthouse-core/runner.js
index 17ddd676b074..689ed67996c1 100644
--- a/lighthouse-core/runner.js
+++ b/lighthouse-core/runner.js
@@ -289,11 +289,13 @@ class Runner {
       for (const artifactName of audit.meta.requiredArtifacts) {
         const noArtifact = artifacts[artifactName] === undefined;
 
-        // If trace required, check that DEFAULT_PASS trace exists.
-        // TODO: need pass-specific check of networkRecords and traces.
-        const noTrace = artifactName === 'traces' && !artifacts.traces[Audit.DEFAULT_PASS];
+        // If trace/devtoolsLog required, check that DEFAULT_PASS trace/devtoolsLog exists.
+        // NOTE: for now, not a pass-specific check of traces or devtoolsLogs.
+        const noRequiredTrace = artifactName === 'traces' && !artifacts.traces[Audit.DEFAULT_PASS];
+        const noRequiredDevtoolsLog = artifactName === 'devtoolsLogs' &&
+            !artifacts.devtoolsLogs[Audit.DEFAULT_PASS];
 
-        if (noArtifact || noTrace) {
+        if (noArtifact || noRequiredTrace || noRequiredDevtoolsLog) {
           log.warn('Runner',
               `${artifactName} gatherer, required by audit ${audit.meta.id}, did not run.`);
           throw new LHError(LHError.errors.MISSING_REQUIRED_ARTIFACT, {artifactName});
diff --git a/lighthouse-core/test/runner-test.js b/lighthouse-core/test/runner-test.js
index e94e8e6ee2cf..bb9b38c6cb11 100644
--- a/lighthouse-core/test/runner-test.js
+++ b/lighthouse-core/test/runner-test.js
@@ -293,6 +293,24 @@ describe('Runner', () => {
       });
     });
 
+    it('outputs an error audit result when devtoolsLog required but not provided', async () => {
+      const config = new Config({
+        settings: {
+          auditMode: __dirname + '/fixtures/artifacts/empty-artifacts/',
+        },
+        audits: [
+          // requires devtoolsLogs[Audit.DEFAULT_PASS]
+          'is-on-https',
+        ],
+      });
+
+      const results = await Runner.run({}, {config});
+      const auditResult = results.lhr.audits['is-on-https'];
+      assert.strictEqual(auditResult.score, null);
+      assert.strictEqual(auditResult.scoreDisplayMode, 'error');
+      assert.strictEqual(auditResult.errorMessage, 'Required devtoolsLogs gatherer did not run.');
+    });
+
     it('outputs an error audit result when missing a required artifact', () => {
       const config = new Config({
         settings: {

From 1ab2929ef2bdf8adbad5048c49a9babc406e9c28 Mon Sep 17 00:00:00 2001
From: PatOnTheBack <51241310+PatOnTheBack@users.noreply.github.com>
Date: Thu, 27 Jun 2019 16:07:04 -0400
Subject: [PATCH 066/110] misc: remove duplicate colon from regex (#9295)

---
 lighthouse-core/lib/file-namer.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lighthouse-core/lib/file-namer.js b/lighthouse-core/lib/file-namer.js
index e742b857b2d6..f2ecd4e6eee3 100644
--- a/lighthouse-core/lib/file-namer.js
+++ b/lighthouse-core/lib/file-namer.js
@@ -33,7 +33,7 @@ function getFilenamePrefix(lhr) {
 
   const filenamePrefix = `${hostname}_${dateStr}_${timeStr}`;
   // replace characters that are unfriendly to filenames
-  return filenamePrefix.replace(/[/?<>\\:*|":]/g, '-');
+  return filenamePrefix.replace(/[/?<>\\:*|"]/g, '-');
 }
 
 // don't attempt to export in the browser.

From b671932abeee47ff055efa05b7a58a2fd7fe7f3b Mon Sep 17 00:00:00 2001
From: Brendan Kenny <bckenny@gmail.com>
Date: Thu, 27 Jun 2019 14:51:14 -0700
Subject: [PATCH 067/110] misc: localize logged GatherRunner error (#9291)

---
 lighthouse-core/gather/gather-runner.js       |  6 +-
 lighthouse-core/lib/i18n/i18n.js              |  9 ++-
 .../test/gather/gather-runner-test.js         | 72 +++++++++----------
 lighthouse-core/test/lib/i18n/i18n-test.js    | 16 +++++
 4 files changed, 60 insertions(+), 43 deletions(-)

diff --git a/lighthouse-core/gather/gather-runner.js b/lighthouse-core/gather/gather-runner.js
index 3e98ca23bb1d..78b910a85600 100644
--- a/lighthouse-core/gather/gather-runner.js
+++ b/lighthouse-core/gather/gather-runner.js
@@ -12,6 +12,7 @@ const LHError = require('../lib/lh-error.js');
 const URL = require('../lib/url-shim.js');
 const NetworkRecorder = require('../lib/network-recorder.js');
 const constants = require('../config/constants.js');
+const i18n = require('../lib/i18n/i18n.js');
 
 /** @typedef {import('../gather/driver.js')} Driver */
 
@@ -646,7 +647,10 @@ class GatherRunner {
     // In case of load error, save log and trace with an error prefix, return no artifacts for this pass.
     const pageLoadError = GatherRunner.getPageLoadError(passContext, loadData, possibleNavError);
     if (pageLoadError) {
-      log.error('GatherRunner', pageLoadError.friendlyMessage, passContext.url);
+      const localizedMessage = i18n.getFormatted(pageLoadError.friendlyMessage,
+          passContext.settings.locale);
+      log.error('GatherRunner', localizedMessage, passContext.url);
+
       passContext.LighthouseRunWarnings.push(pageLoadError.friendlyMessage);
       GatherRunner._addLoadDataToBaseArtifacts(passContext, loadData,
           `pageLoadError-${passConfig.passName}`);
diff --git a/lighthouse-core/lib/i18n/i18n.js b/lighthouse-core/lib/i18n/i18n.js
index 1fd5d99ab29e..d3da92e48acb 100644
--- a/lighthouse-core/lib/i18n/i18n.js
+++ b/lighthouse-core/lib/i18n/i18n.js
@@ -183,6 +183,8 @@ const _ICUMsgNotFoundMsg = 'ICU message not found in destination locale';
  */
 function _formatIcuMessage(locale, icuMessageId, fallbackMessage, values) {
   const localeMessages = LOCALES[locale];
+  if (!localeMessages) throw new Error(`Unsupported locale '${locale}'`);
+
   const localeMessage = localeMessages[icuMessageId] && localeMessages[icuMessageId].message;
   // fallback to the original english message if we couldn't find a message in the specified locale
   // better to have an english message than no message at all, in some number cases it won't even matter
@@ -220,13 +222,16 @@ function _formatPathAsString(pathInLHR) {
  * @return {LH.I18NRendererStrings}
  */
 function getRendererFormattedStrings(locale) {
-  const icuMessageIds = Object.keys(LOCALES[locale]).filter(f => f.includes('core/report/html/'));
+  const localeMessages = LOCALES[locale];
+  if (!localeMessages) throw new Error(`Unsupported locale '${locale}'`);
+
+  const icuMessageIds = Object.keys(localeMessages).filter(f => f.includes('core/report/html/'));
   /** @type {LH.I18NRendererStrings} */
   const strings = {};
   for (const icuMessageId of icuMessageIds) {
     const [filename, varName] = icuMessageId.split(' | ');
     if (!filename.endsWith('util.js')) throw new Error(`Unexpected message: ${icuMessageId}`);
-    strings[varName] = LOCALES[locale][icuMessageId].message;
+    strings[varName] = localeMessages[icuMessageId].message;
   }
 
   return strings;
diff --git a/lighthouse-core/test/gather/gather-runner-test.js b/lighthouse-core/test/gather/gather-runner-test.js
index 1161af861cdd..8d8077df0be5 100644
--- a/lighthouse-core/test/gather/gather-runner-test.js
+++ b/lighthouse-core/test/gather/gather-runner-test.js
@@ -424,7 +424,7 @@ describe('GatherRunner', function() {
     assert.equal(tests.calledCleanBrowserCaches, true);
   });
 
-  it('returns a pageLoadError and no artifacts with network errors', async () => {
+  it('returns a pageLoadError and no artifacts when there is a network error', async () => {
     const requestedUrl = 'https://example.com';
     // This page load error should be overriden by NO_DOCUMENT_REQUEST (for being
     // more specific) since requestedUrl does not match any network request in fixture.
@@ -434,31 +434,27 @@ describe('GatherRunner', function() {
       gotoURL: url => url.includes('blank') ? null : Promise.reject(navigationError),
     });
 
-    const passConfig = {
-      gatherers: [
-        {instance: new TestGatherer()},
-      ],
-    };
-
-    const settings = {};
-
-    const passContext = {
-      url: requestedUrl,
+    const config = new Config({
+      passes: [{
+        recordTrace: true,
+        passName: 'firstPass',
+        gatherers: [{instance: new TestGatherer()}],
+      }],
+    });
+    const options = {
       driver,
-      passConfig,
-      settings,
-      LighthouseRunWarnings: [],
-      baseArtifacts: await GatherRunner.initializeBaseArtifacts({driver, settings, requestedUrl}),
+      requestedUrl,
+      settings: config.settings,
     };
 
-    const {artifacts, pageLoadError} = await GatherRunner.runPass(passContext);
-    expect(passContext.LighthouseRunWarnings).toHaveLength(1);
-    expect(pageLoadError).toBeInstanceOf(Error);
-    expect(pageLoadError.code).toEqual('NO_DOCUMENT_REQUEST');
-    expect(artifacts).toEqual({});
+    const artifacts = await GatherRunner.run(config.passes, options);
+    expect(artifacts.LighthouseRunWarnings).toHaveLength(1);
+    expect(artifacts.PageLoadError).toBeInstanceOf(Error);
+    expect(artifacts.PageLoadError.code).toEqual('NO_DOCUMENT_REQUEST');
+    expect(artifacts.TestGatherer).toBeUndefined();
   });
 
-  it('returns a pageLoadError and no artifacts with navigation errors', async () => {
+  it('returns a pageLoadError and no artifacts when there is a navigation error', async () => {
     const requestedUrl = 'https://example.com';
     // This time, NO_FCP should win because it's the only error left.
     const navigationError = new LHError(LHError.errors.NO_FCP);
@@ -470,28 +466,24 @@ describe('GatherRunner', function() {
       },
     });
 
-    const passConfig = {
-      gatherers: [
-        {instance: new TestGatherer()},
-      ],
-    };
-
-    const settings = {};
-
-    const passContext = {
-      url: requestedUrl,
+    const config = new Config({
+      passes: [{
+        recordTrace: true,
+        passName: 'firstPass',
+        gatherers: [{instance: new TestGatherer()}],
+      }],
+    });
+    const options = {
       driver,
-      passConfig,
-      settings,
-      LighthouseRunWarnings: [],
-      baseArtifacts: await GatherRunner.initializeBaseArtifacts({driver, settings, requestedUrl}),
+      requestedUrl,
+      settings: config.settings,
     };
 
-    const {artifacts, pageLoadError} = await GatherRunner.runPass(passContext);
-    expect(passContext.LighthouseRunWarnings).toHaveLength(1);
-    expect(pageLoadError).toBeInstanceOf(Error);
-    expect(pageLoadError.code).toEqual('NO_FCP');
-    expect(artifacts).toEqual({});
+    const artifacts = await GatherRunner.run(config.passes, options);
+    expect(artifacts.LighthouseRunWarnings).toHaveLength(1);
+    expect(artifacts.PageLoadError).toBeInstanceOf(Error);
+    expect(artifacts.PageLoadError.code).toEqual('NO_FCP');
+    expect(artifacts.TestGatherer).toBeUndefined();
   });
 
   it('does not clear origin storage with flag --disable-storage-reset', () => {
diff --git a/lighthouse-core/test/lib/i18n/i18n-test.js b/lighthouse-core/test/lib/i18n/i18n-test.js
index f5d07a32e289..185c1df5e9a9 100644
--- a/lighthouse-core/test/lib/i18n/i18n-test.js
+++ b/lighthouse-core/test/lib/i18n/i18n-test.js
@@ -61,6 +61,22 @@ describe('i18n', () => {
       expect(strings.passedAuditsGroupTitle).toEqual('[Þåššéð åûðîţš one two]');
       expect(strings.snippetCollapseButtonLabel).toEqual('[Çöļļåþšé šñîþþéţ one two]');
     });
+
+    it('throws an error for invalid locales', () => {
+      expect(_ => i18n.getRendererFormattedStrings('not-a-locale'))
+        .toThrow(`Unsupported locale 'not-a-locale'`);
+    });
+  });
+
+  describe('#getFormatted', () => {
+    it('throws an error for invalid locales', () => {
+      // Populate a string to try to localize to a bad locale.
+      const UIStrings = {testMessage: 'testy test'};
+      const str_ = i18n.createMessageInstanceIdFn(__filename, UIStrings);
+
+      expect(_ => i18n.getFormatted(str_(UIStrings.testMessage), 'still-not-a-locale'))
+        .toThrow(`Unsupported locale 'still-not-a-locale'`);
+    });
   });
 
   describe('#lookupLocale', () => {

From 8bef45472a4ede831c176ce584393f86e80b296e Mon Sep 17 00:00:00 2001
From: Connor Clark <cjamcl@google.com>
Date: Thu, 27 Jun 2019 18:08:33 -0700
Subject: [PATCH 068/110] report: use css grid for metrics (#9273)

---
 lighthouse-core/report/html/report-styles.css | 25 +++++++------------
 1 file changed, 9 insertions(+), 16 deletions(-)

diff --git a/lighthouse-core/report/html/report-styles.css b/lighthouse-core/report/html/report-styles.css
index 3eb8135442cd..6d4b7a319421 100644
--- a/lighthouse-core/report/html/report-styles.css
+++ b/lighthouse-core/report/html/report-styles.css
@@ -97,7 +97,6 @@
   --header-line-height: 24px;
   --highlighter-background-color: var(--report-text-color);
   --icon-square-size: calc(var(--score-icon-size) * 0.88);
-  --metric-description-padding: 0 0 2px calc(var(--score-icon-margin-left) + var(--score-icon-size) + var(--score-icon-margin-right));
   --metric-toggle-lines-fill: #7F7F7F;
   --metrics-toggle-background-color: var(--color-gray-200);
   --plugin-badge-background-color: var(--color-white);
@@ -434,7 +433,8 @@
 .lh-audit--fail .lh-audit__display-text {
   color: var(--color-fail-secondary);
 }
-.lh-audit--fail .lh-audit__score-icon {
+.lh-audit--fail .lh-audit__score-icon,
+.lh-audit--error .lh-audit__score-icon {
   border-left: calc(var(--score-icon-size) / 2) solid transparent;
   border-right: calc(var(--score-icon-size) / 2) solid transparent;
   border-bottom: var(--score-icon-size) solid var(--color-fail);
@@ -450,10 +450,6 @@
   background: var(--color-gray-400);
 }
 
-.lh-audit--error .lh-audit__score-icon {
-  display: none;
-}
-
 .lh-audit--informative .lh-audit__display-text {
   color: var(--color-gray-600);
 }
@@ -576,10 +572,9 @@
 }
 
 .lh-metric__innerwrap {
-  display: flex;
+  display: grid;
+  grid-template-columns: var(--audit-description-padding-left) 10fr 3fr;
   align-items: center;
-  flex-wrap: wrap;
-  justify-content: space-between;
   padding: 10px 0;
 }
 
@@ -599,13 +594,15 @@
 
 .lh-metric__description {
   display: none;
+  grid-column-start: 2;
+  grid-column-end: 3;
   color: var(--report-text-color-secondary);
-  padding: var(--metric-description-padding);
 }
 
 .lh-metric__value {
   white-space: nowrap; /* No wrapping between metric value and the icon */
   font-weight: 500;
+  justify-self: end;
 }
 
 /* No-JS toggle switch */
@@ -700,7 +697,8 @@
 .lh-metric--fail .lh-metric__value {
   color: var(--color-fail-secondary);
 }
-.lh-metric--fail .lh-metric__innerwrap::before {
+.lh-metric--fail .lh-metric__innerwrap::before,
+.lh-metric--error .lh-metric__innerwrap::before {
   border-left: calc(var(--score-icon-size) / 2) solid transparent;
   border-right: calc(var(--score-icon-size) / 2) solid transparent;
   border-bottom: var(--score-icon-size) solid var(--color-fail);
@@ -711,11 +709,6 @@
   color: var(--color-fail-secondary);
 }
 
-/* Hide icon if there was an error */
-.lh-metric--error .lh-metric__innerwrap::before {
-  display: none;
-}
-
 /* Perf load opportunity */
 
 .lh-load-opportunity__cols {

From d9e012bb34b1206dbb9ba6126783acb4eb2b8977 Mon Sep 17 00:00:00 2001
From: Connor Clark <cjamcl@google.com>
Date: Fri, 28 Jun 2019 17:29:35 -0700
Subject: [PATCH 069/110] report: make urls clickable (#9224)

---
 .../html/renderer/crc-details-renderer.js     | 31 +++++++++++--------
 .../report/html/renderer/details-renderer.js  | 12 +++----
 lighthouse-core/report/html/report-styles.css | 15 ++++++---
 lighthouse-core/report/html/templates.html    |  8 ++---
 .../renderer/crc-details-renderer-test.js     | 18 ++++++++---
 .../html/renderer/details-renderer-test.js    |  7 +++--
 .../html/renderer/report-ui-features-test.js  |  2 +-
 7 files changed, 57 insertions(+), 36 deletions(-)

diff --git a/lighthouse-core/report/html/renderer/crc-details-renderer.js b/lighthouse-core/report/html/renderer/crc-details-renderer.js
index 150064d477f2..0c53f0865510 100644
--- a/lighthouse-core/report/html/renderer/crc-details-renderer.js
+++ b/lighthouse-core/report/html/renderer/crc-details-renderer.js
@@ -84,9 +84,10 @@ class CriticalRequestChainRenderer {
    * @param {DOM} dom
    * @param {DocumentFragment} tmpl
    * @param {CRCSegment} segment
+   * @param {DetailsRenderer} detailsRenderer
    * @return {Node}
    */
-  static createChainNode(dom, tmpl, segment) {
+  static createChainNode(dom, tmpl, segment, detailsRenderer) {
     const chainsEl = dom.cloneTemplate('#tmpl-lh-crc__chains', tmpl);
 
     // Hovering over request shows full URL.
@@ -120,10 +121,10 @@ class CriticalRequestChainRenderer {
     }
 
     // Fill in url, host, and request size information.
-    const {file, hostname} = Util.parseURL(segment.node.request.url);
+    const url = segment.node.request.url;
+    const linkEl = detailsRenderer.renderTextURL(url);
     const treevalEl = dom.find('.crc-node__tree-value', chainsEl);
-    dom.find('.crc-node__tree-file', treevalEl).textContent = `${file}`;
-    dom.find('.crc-node__tree-hostname', treevalEl).textContent = hostname ? `(${hostname})` : '';
+    treevalEl.appendChild(linkEl);
 
     if (!segment.hasChildren) {
       const {startTime, endTime, transferSize} = segment.node.request;
@@ -146,14 +147,15 @@ class CriticalRequestChainRenderer {
    * @param {CRCSegment} segment
    * @param {Element} elem Parent element.
    * @param {LH.Audit.Details.CriticalRequestChain} details
+   * @param {DetailsRenderer} detailsRenderer
    */
-  static buildTree(dom, tmpl, segment, elem, details) {
-    elem.appendChild(CriticalRequestChainRenderer.createChainNode(dom, tmpl, segment));
+  static buildTree(dom, tmpl, segment, elem, details, detailsRenderer) {
+    elem.appendChild(CRCRenderer.createChainNode(dom, tmpl, segment, detailsRenderer));
     if (segment.node.children) {
       for (const key of Object.keys(segment.node.children)) {
-        const childSegment = CriticalRequestChainRenderer.createSegment(segment.node.children, key,
+        const childSegment = CRCRenderer.createSegment(segment.node.children, key,
           segment.startTime, segment.transferSize, segment.treeMarkers, segment.isLastChild);
-        CriticalRequestChainRenderer.buildTree(dom, tmpl, childSegment, elem, details);
+        CRCRenderer.buildTree(dom, tmpl, childSegment, elem, details, detailsRenderer);
       }
     }
   }
@@ -162,9 +164,10 @@ class CriticalRequestChainRenderer {
    * @param {DOM} dom
    * @param {ParentNode} templateContext
    * @param {LH.Audit.Details.CriticalRequestChain} details
+   * @param {DetailsRenderer} detailsRenderer
    * @return {Element}
    */
-  static render(dom, templateContext, details) {
+  static render(dom, templateContext, details, detailsRenderer) {
     const tmpl = dom.cloneTemplate('#tmpl-lh-crc', templateContext);
     const containerEl = dom.find('.lh-crc', tmpl);
 
@@ -176,17 +179,19 @@ class CriticalRequestChainRenderer {
         Util.formatMilliseconds(details.longestChain.duration);
 
     // Construct visual tree.
-    const root = CriticalRequestChainRenderer.initTree(details.chains);
+    const root = CRCRenderer.initTree(details.chains);
     for (const key of Object.keys(root.tree)) {
-      const segment = CriticalRequestChainRenderer.createSegment(root.tree, key,
-          root.startTime, root.transferSize);
-      CriticalRequestChainRenderer.buildTree(dom, tmpl, segment, containerEl, details);
+      const segment = CRCRenderer.createSegment(root.tree, key, root.startTime, root.transferSize);
+      CRCRenderer.buildTree(dom, tmpl, segment, containerEl, details, detailsRenderer);
     }
 
     return dom.find('.lh-crc-container', tmpl);
   }
 }
 
+// Alias b/c the name is really long.
+const CRCRenderer = CriticalRequestChainRenderer;
+
 // Allow Node require()'ing.
 if (typeof module !== 'undefined' && module.exports) {
   module.exports = CriticalRequestChainRenderer;
diff --git a/lighthouse-core/report/html/renderer/details-renderer.js b/lighthouse-core/report/html/renderer/details-renderer.js
index 4e26b2594ae2..84a5d49f6cb8 100644
--- a/lighthouse-core/report/html/renderer/details-renderer.js
+++ b/lighthouse-core/report/html/renderer/details-renderer.js
@@ -53,7 +53,7 @@ class DetailsRenderer {
       case 'table':
         return this._renderTable(details);
       case 'criticalrequestchain':
-        return CriticalRequestChainRenderer.render(this._dom, this._templateContext, details);
+        return CriticalRequestChainRenderer.render(this._dom, this._templateContext, details, this);
       case 'opportunity':
         return this._renderTable(details);
 
@@ -97,7 +97,7 @@ class DetailsRenderer {
    * @param {string} text
    * @return {HTMLElement}
    */
-  _renderTextURL(text) {
+  renderTextURL(text) {
     const url = text;
 
     let displayedPath;
@@ -113,7 +113,7 @@ class DetailsRenderer {
     }
 
     const element = this._dom.createElement('div', 'lh-text__url');
-    element.appendChild(this._renderText(displayedPath));
+    element.appendChild(this._renderLink({text: displayedPath, url}));
 
     if (displayedHost) {
       const hostElem = this._renderText(displayedHost);
@@ -130,7 +130,7 @@ class DetailsRenderer {
   }
 
   /**
-   * @param {LH.Audit.Details.LinkValue} details
+   * @param {{text: string, url: string}} details
    * @return {Element}
    */
   _renderLink(details) {
@@ -215,7 +215,7 @@ class DetailsRenderer {
           return this.renderNode(value);
         }
         case 'url': {
-          return this._renderTextURL(value.value);
+          return this.renderTextURL(value.value);
         }
         default: {
           throw new Error(`Unknown valueType: ${value.type}`);
@@ -260,7 +260,7 @@ class DetailsRenderer {
       case 'url': {
         const strValue = String(value);
         if (URL_PREFIXES.some(prefix => strValue.startsWith(prefix))) {
-          return this._renderTextURL(strValue);
+          return this.renderTextURL(strValue);
         } else {
           // Fall back to <pre> rendering if not actually a URL.
           return this._renderCode(strValue);
diff --git a/lighthouse-core/report/html/report-styles.css b/lighthouse-core/report/html/report-styles.css
index 6d4b7a319421..be06994c36f7 100644
--- a/lighthouse-core/report/html/report-styles.css
+++ b/lighthouse-core/report/html/report-styles.css
@@ -1365,12 +1365,8 @@
   width: 12%;
 }
 
-.lh-text__url:hover {
-  text-decoration: underline dotted #999;
-  text-decoration-skip-ink: auto;
-}
 
-.lh-text__url > .lh-text, .lh-text__url-host {
+.lh-text__url-host {
   display: inline;
 }
 
@@ -1386,6 +1382,15 @@
   object-fit: contain;
 }
 
+.lh-text__url > a {
+  color: inherit;
+  text-decoration: none;
+}
+
+.lh-text__url > a:hover {
+  text-decoration: underline dotted #999;
+}
+
 /* Chevron
    https://codepen.io/paulirish/pen/LmzEmK
  */
diff --git a/lighthouse-core/report/html/templates.html b/lighthouse-core/report/html/templates.html
index 92f633d0aaf5..7bb51410be08 100644
--- a/lighthouse-core/report/html/templates.html
+++ b/lighthouse-core/report/html/templates.html
@@ -741,12 +741,12 @@
       .lh-crc .crc-node__tree-value {
         margin-left: 10px;
       }
+      .lh-crc .crc-node__tree-value div {
+        display: inline;
+      }
       .lh-crc .crc-node__chain-duration {
         font-weight: 700;
       }
-      .lh-crc .crc-node__tree-hostname {
-        color: #595959;
-      }
       .lh-crc .crc-initial-nav {
         color: #595959;
         font-style: italic;
@@ -769,8 +769,6 @@
 
           </span>
           <span class="crc-node__tree-value">
-            <span class="crc-node__tree-file"><!-- fill me: node.request.url.file --></span>
-            <span class="crc-node__tree-hostname">(<!-- fill me: node.request.url.host -->)</span>
 
           </span>
         </div>
diff --git a/lighthouse-core/test/report/html/renderer/crc-details-renderer-test.js b/lighthouse-core/test/report/html/renderer/crc-details-renderer-test.js
index 79de69ef5d6d..f5d8ca14ce6a 100644
--- a/lighthouse-core/test/report/html/renderer/crc-details-renderer-test.js
+++ b/lighthouse-core/test/report/html/renderer/crc-details-renderer-test.js
@@ -13,6 +13,7 @@ const jsdom = require('jsdom');
 const URL = require('../../../../lib/url-shim.js');
 const Util = require('../../../../report/html/renderer/util.js');
 const DOM = require('../../../../report/html/renderer/dom.js');
+const DetailsRenderer = require('../../../../report/html/renderer/details-renderer.js');
 const CriticalRequestChainRenderer =
     require('../../../../report/html/renderer/crc-details-renderer.js');
 
@@ -75,12 +76,14 @@ const DETAILS = {
 
 describe('DetailsRenderer', () => {
   let dom;
+  let detailsRenderer;
 
   beforeAll(() => {
     global.URL = URL;
     global.Util = Util;
     const {document} = new jsdom.JSDOM(TEMPLATE_FILE).window;
     dom = new DOM(document);
+    detailsRenderer = new DetailsRenderer(dom);
   });
 
   afterAll(() => {
@@ -89,18 +92,25 @@ describe('DetailsRenderer', () => {
   });
 
   it('renders tree structure', () => {
-    const el = CriticalRequestChainRenderer.render(dom, dom.document(), DETAILS);
+    const el = CriticalRequestChainRenderer.render(dom, dom.document(), DETAILS, detailsRenderer);
     const chains = el.querySelectorAll('.crc-node');
 
     // Main request
     assert.equal(chains.length, 4, 'generates correct number of chain nodes');
-    assert.equal(chains[0].querySelector('.crc-node__tree-hostname').textContent, '(example.com)');
+    assert.ok(!chains[0].querySelector('.lh-text__url-host'), 'should be no origin for root url');
+    assert.equal(chains[0].querySelector('.lh-text__url a').textContent, 'https://example.com');
+    assert.equal(chains[0].querySelector('.lh-text__url a').href, 'https://example.com/');
+    assert.equal(chains[0].querySelector('.lh-text__url a').rel, 'noopener');
+    assert.equal(chains[0].querySelector('.lh-text__url a').target, '_blank');
 
     // Children
     assert.ok(chains[1].querySelector('.crc-node__tree-marker .vert-right'));
     assert.equal(chains[1].querySelectorAll('.crc-node__tree-marker .right').length, 2);
-    assert.equal(chains[1].querySelector('.crc-node__tree-file').textContent, '/b.js');
-    assert.equal(chains[1].querySelector('.crc-node__tree-hostname').textContent, '(example.com)');
+    assert.equal(chains[1].querySelector('.lh-text__url a').textContent, '/b.js');
+    assert.equal(chains[1].querySelector('.lh-text__url a').href, 'https://example.com/b.js');
+    assert.equal(chains[1].querySelector('.lh-text__url a').rel, 'noopener');
+    assert.equal(chains[1].querySelector('.lh-text__url a').target, '_blank');
+    assert.equal(chains[1].querySelector('.lh-text__url-host').textContent, '(example.com)');
     const durationNodes = chains[1].querySelectorAll('.crc-node__chain-duration');
     assert.equal(durationNodes[0].textContent, ' - 5,000\xa0ms, ');
     // Note: actual transferSize is 2000 bytes but formatter formats to KBs.
diff --git a/lighthouse-core/test/report/html/renderer/details-renderer-test.js b/lighthouse-core/test/report/html/renderer/details-renderer-test.js
index 261172a7356c..ba7cf34c7dfd 100644
--- a/lighthouse-core/test/report/html/renderer/details-renderer-test.js
+++ b/lighthouse-core/test/report/html/renderer/details-renderer-test.js
@@ -405,7 +405,10 @@ describe('DetailsRenderer', () => {
       assert.equal(urlEl.localName, 'div');
       assert.equal(urlEl.title, urlText);
       assert.equal(urlEl.dataset.url, urlText);
-      assert.ok(urlEl.firstChild.classList.contains('lh-text'));
+      assert.equal(urlEl.firstChild.nodeName, 'A');
+      assert.equal(urlEl.firstChild.href, urlText);
+      assert.equal(urlEl.firstChild.rel, 'noopener');
+      assert.equal(urlEl.firstChild.target, '_blank');
       assert.equal(urlEl.textContent, displayUrlText);
     });
 
@@ -430,7 +433,7 @@ describe('DetailsRenderer', () => {
       assert.equal(urlEl.localName, 'div');
       assert.equal(urlEl.title, urlText);
       assert.equal(urlEl.dataset.url, urlText);
-      assert.ok(urlEl.firstChild.classList.contains('lh-text'));
+      assert.equal(urlEl.firstChild.nodeName, 'A');
       assert.equal(urlEl.textContent, displayUrlText);
     });
 
diff --git a/lighthouse-core/test/report/html/renderer/report-ui-features-test.js b/lighthouse-core/test/report/html/renderer/report-ui-features-test.js
index d706fc4f82fd..2beb09fec0b0 100644
--- a/lighthouse-core/test/report/html/renderer/report-ui-features-test.js
+++ b/lighthouse-core/test/report/html/renderer/report-ui-features-test.js
@@ -185,7 +185,7 @@ describe('ReportUIFeatures', () => {
 
         function getUrlsInTable() {
           return dom
-            .findAll('#uses-webp-images .lh-details .lh-text__url .lh-text:first-child', container)
+            .findAll('#uses-webp-images .lh-details .lh-text__url a:first-child', container)
             .map(el => el.textContent);
         }
 

From 0da300a45d001887dd0a373c1eafcbd3e048c68d Mon Sep 17 00:00:00 2001
From: Paul Irish <paulirish@google.com>
Date: Sat, 29 Jun 2019 00:02:19 -0700
Subject: [PATCH 070/110] misc(build): create error-y LHR for the deploy
 (#9283)

---
 .../build-report-for-autodeployment.js        | 97 +++++++++++++++++--
 1 file changed, 87 insertions(+), 10 deletions(-)

diff --git a/lighthouse-core/scripts/build-report-for-autodeployment.js b/lighthouse-core/scripts/build-report-for-autodeployment.js
index 5bfab5d568d7..7fdc9d06a71a 100644
--- a/lighthouse-core/scripts/build-report-for-autodeployment.js
+++ b/lighthouse-core/scripts/build-report-for-autodeployment.js
@@ -14,32 +14,33 @@ const mkdirp = require('mkdirp').sync;
 const swapLocale = require('../lib/i18n/swap-locale.js');
 
 const ReportGenerator = require('../../lighthouse-core/report/report-generator.js');
+const {defaultSettings} = require('../config/constants.js');
+const lighthouse = require('../index.js');
 const lhr = /** @type {LH.Result} */ (require('../../lighthouse-core/test/results/sample_v2.json'));
 
 const DIST = path.join(__dirname, `../../dist`);
 
-// Add a plugin to demo plugin rendering.
-lhr.categories['lighthouse-plugin-someplugin'] = {
-  id: 'lighthouse-plugin-someplugin',
-  title: 'Plugin',
-  score: 0.5,
-  auditRefs: [],
-};
-
 (async function() {
+  addPluginCategory(lhr);
+  const errorLhr = await generateErrorLHR();
+
   const filenameToLhr = {
     'english': lhr,
     'espanol': swapLocale(lhr, 'es').lhr,
     'arabic': swapLocale(lhr, 'ar').lhr,
+    'xl-accented': swapLocale(lhr, 'en-XL').lhr,
+    'error': errorLhr,
   };
 
-  mkdirp(DIST);
-
   // Generate and write reports
   Object.entries(filenameToLhr).forEach(([filename, lhr]) => {
     let html = ReportGenerator.generateReportHtml(lhr);
+    // TODO: PSI is another variant to consider
     for (const variant of ['', '-devtools']) {
       if (variant === '-devtools') {
+        // TODO: Make the DevTools Audits panel "emulation" more comprehensive
+        // - the parent widget/vbox container with overflow
+        // - a more constrained/realistic default size
         html = html.replace(`"lh-root lh-vars"`, `"lh-root lh-vars lh-devtools"`);
       }
       const filepath = `${DIST}/${filename}${variant}/index.html`;
@@ -49,3 +50,79 @@ lhr.categories['lighthouse-plugin-someplugin'] = {
     }
   });
 })();
+
+/**
+ * Add a plugin to demo plugin rendering.
+ * @param {LH.Result} lhr
+ */
+function addPluginCategory(lhr) {
+  lhr.categories['lighthouse-plugin-someplugin'] = {
+    id: 'lighthouse-plugin-someplugin',
+    title: 'Plugin',
+    score: 0.5,
+    auditRefs: [],
+  };
+}
+
+/**
+ * Generate an LHR with errors for the renderer to display.
+ * We'll write an "empty" artifacts file to disk, only to use it in auditMode.
+ * @return {Promise<LH.Result>}
+ */
+async function generateErrorLHR() {
+  /** @type {LH.BaseArtifacts} */
+  const artifacts = {
+    fetchTime: '2019-06-26T23:56:58.381Z',
+    LighthouseRunWarnings: [
+      `Something went wrong with recording the trace over your page load. Please run Lighthouse again. (NO_FCP)`, // eslint-disable-line max-len
+    ],
+    TestedAsMobileDevice: true,
+    HostUserAgent: 'Mozilla/5.0 ErrorUserAgent Chrome/66',
+    NetworkUserAgent: 'Mozilla/5.0 ErrorUserAgent Chrome/66',
+    BenchmarkIndex: 1000,
+    WebAppManifest: null,
+    Stacks: [],
+    settings: defaultSettings,
+    URL: {
+      requestedUrl: 'http://fakeurl.com',
+      finalUrl: 'http://fakeurl.com',
+    },
+    Timing: [],
+    PageLoadError: null,
+    devtoolsLogs: {},
+    traces: {},
+  };
+
+  // Save artifacts to disk then run `lighthouse -G` with them.
+  const TMP = `${DIST}/.tmp/`;
+  mkdirp(TMP);
+  fs.writeFileSync(`${TMP}/artifacts.json`, JSON.stringify(artifacts), 'utf-8');
+  const errorRunnerResult = await lighthouse(artifacts.URL.requestedUrl, {auditMode: TMP});
+
+  if (!errorRunnerResult) throw new Error('Failed to run lighthouse on empty artifacts');
+  const errorLhr = errorRunnerResult.lhr;
+
+  // Add audit warnings to font-display
+  errorLhr.audits['font-display'].warnings = [
+    'Lighthouse was unable to automatically check the font-display value for the following URL: https://secure-ds.serving-sys.com/resources/PROD/html5/105657/20190307/1074580285/43862346571980472/fonts/IBMPlexSans-Light-Latin1.woff.',
+    'Lighthouse was unable to automatically check the font-display value for the following URL: https://secure-ds.serving-sys.com/resources/PROD/html5/105657/20190307/1074580285/43862346571980472/fonts/IBMPlexSans-Bold-Latin1.woff.',
+  ];
+  // perf/offscreen-images - set as passing but with a warning
+  const offscreenImagesAudit = errorLhr.audits['offscreen-images'];
+  offscreenImagesAudit.warnings = [
+    'Invalid image sizing information: https://cdn.cnn.com/cnn/.e1mo/img/4.0/vr/vr_new_asset.png',
+  ];
+  offscreenImagesAudit.errorMessage = undefined;
+  offscreenImagesAudit.scoreDisplayMode = 'binary';
+  offscreenImagesAudit.score = 1;
+  // pwa-apple-touch-icon - set as passing but with a warning
+  const appleTouchIconAudit = errorLhr.audits['apple-touch-icon'];
+  appleTouchIconAudit.warnings = [
+    '`apple-touch-icon-precomposed` is out of date; `apple-touch-icon` is preferred.',
+  ];
+  appleTouchIconAudit.errorMessage = undefined;
+  appleTouchIconAudit.scoreDisplayMode = 'binary';
+  appleTouchIconAudit.score = 1;
+
+  return errorLhr;
+}

From 29f56670d1061eedf68ba52bd8380aab9227e4b8 Mon Sep 17 00:00:00 2001
From: Connor Clark <cjamcl@google.com>
Date: Mon, 1 Jul 2019 13:18:17 -0700
Subject: [PATCH 071/110] report: remove unnecessary attribute in svg (#9301)

---
 lighthouse-core/report/html/templates.html | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/lighthouse-core/report/html/templates.html b/lighthouse-core/report/html/templates.html
index 7bb51410be08..34f1c9698149 100644
--- a/lighthouse-core/report/html/templates.html
+++ b/lighthouse-core/report/html/templates.html
@@ -34,10 +34,10 @@
 
 <!-- Toggle arrow chevron -->
 <template id="tmpl-lh-chevron">
-  <svg class="lh-chevron" title="See audits" xmlns="http://www.w3.org/2000/svg"  viewbox="0 0 100 100">
+  <svg class="lh-chevron" title="See audits" xmlns="http://www.w3.org/2000/svg" viewbox="0 0 100 100">
     <g class="lh-chevron__lines">
-      <path class="lh-chevron__line lh-chevron__line-left" d="M10 50h40" stroke="#707173"></path>
-      <path class="lh-chevron__line lh-chevron__line-right" d="M90 50H50" stroke="#707173"></path>
+      <path class="lh-chevron__line lh-chevron__line-left" d="M10 50h40"></path>
+      <path class="lh-chevron__line lh-chevron__line-right" d="M90 50H50"></path>
     </g>
   </svg>
 </template>

From 6794e2e603aebe9ebfe979362c83ab5a620ef638 Mon Sep 17 00:00:00 2001
From: Connor Clark <cjamcl@google.com>
Date: Mon, 1 Jul 2019 14:37:56 -0700
Subject: [PATCH 072/110] deps(intl): move from devDep to dep (#9309)

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 8a7effe65ebf..12f07f8d1ffc 100644
--- a/package.json
+++ b/package.json
@@ -120,7 +120,6 @@
     "gh-pages": "^2.0.1",
     "glob": "^7.1.3",
     "idb-keyval": "2.2.0",
-    "intl": "^1.2.5",
     "isomorphic-fetch": "^2.2.1",
     "jest": "^24.3.0",
     "jsdom": "^12.2.0",
@@ -145,6 +144,7 @@
     "details-element-polyfill": "2.2.0",
     "http-link-header": "^0.8.0",
     "inquirer": "^3.3.0",
+    "intl": "^1.2.5",
     "intl-messageformat": "^2.2.0",
     "intl-messageformat-parser": "^1.4.0",
     "jpeg-js": "0.1.2",

From b751de512b3026fe7c5d35596afb362b1287a3f6 Mon Sep 17 00:00:00 2001
From: Connor Clark <cjamcl@gmail.com>
Date: Mon, 1 Jul 2019 14:55:05 -0700
Subject: [PATCH 073/110] deps(brfs): upgrade to 2.0.2 to resolve source map
 debug issue (#9312)

---
 build/build-bundle.js |   7 +-
 package.json          |   2 +-
 yarn.lock             | 155 +++++++++++++++++++++++++++++++-----------
 3 files changed, 122 insertions(+), 42 deletions(-)

diff --git a/build/build-bundle.js b/build/build-bundle.js
index d7ade6ebf075..356f4c86c917 100644
--- a/build/build-bundle.js
+++ b/build/build-bundle.js
@@ -39,6 +39,7 @@ const isDevtools = file => path.basename(file).includes('devtools');
 const isExtension = file => path.basename(file).includes('extension');
 
 const BANNER = `// lighthouse, browserified. ${VERSION} (${COMMIT_HASH})\n`;
+const DEBUG = false; // true for sourcemaps
 
 /**
  * Browserify starting at the file at entryPath. Contains entry-point-specific
@@ -49,7 +50,7 @@ const BANNER = `// lighthouse, browserified. ${VERSION} (${COMMIT_HASH})\n`;
  * @return {Promise<void>}
  */
 async function browserifyFile(entryPath, distPath) {
-  let bundle = browserify(entryPath); // , {debug: true}); // for sourcemaps
+  let bundle = browserify(entryPath, {debug: DEBUG});
 
   bundle
     // Transform the fs.readFile etc into inline strings.
@@ -138,7 +139,9 @@ function minifyScript(filePath) {
  */
 async function build(entryPath, distPath) {
   await browserifyFile(entryPath, distPath);
-  minifyScript(distPath);
+  if (!DEBUG) {
+    minifyScript(distPath);
+  }
 }
 
 /**
diff --git a/package.json b/package.json
index 12f07f8d1ffc..1b6e5bc1c715 100644
--- a/package.json
+++ b/package.json
@@ -102,7 +102,7 @@
     "babel-core": "^6.26.0",
     "babel-plugin-syntax-async-generators": "^6.13.0",
     "babel-plugin-syntax-object-rest-spread": "^6.13.0",
-    "brfs": "^1.6.1",
+    "brfs": "^2.0.2",
     "browserify": "^16.2.3",
     "bundlesize": "^0.17.2",
     "chalk": "^2.4.1",
diff --git a/yarn.lock b/yarn.lock
index da7774d54d66..d18514554fc3 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -823,7 +823,7 @@ acorn@^3.0.4:
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-3.3.0.tgz#45e37fb39e8da3f25baee3ff5369e2bb5f22017a"
   integrity sha1-ReN/s56No/JbruP/U2niu18iAXo=
 
-acorn@^5.0.0, acorn@^5.3.0, acorn@^5.5.0:
+acorn@^5.3.0, acorn@^5.5.0:
   version "5.5.3"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.5.3.tgz#f473dd47e0277a08e28e9bec5aeeb04751f0b8c9"
   integrity sha512-jd5MkIUlbbmb07nXH0DT3y7rDVtkzDi4XZOUVWAer8ajmF/DTSSbl5oNFyDOl/OXA33Bl79+ypHhl2pN20VeOQ==
@@ -1020,6 +1020,11 @@ array-find-index@^1.0.1:
   resolved "https://registry.yarnpkg.com/array-find-index/-/array-find-index-1.0.2.tgz#df010aa1287e164bbda6f9723b0a96a1ec4187a1"
   integrity sha1-3wEKoSh+Fku9pvlyOwqWoexBh6E=
 
+array-from@^2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/array-from/-/array-from-2.1.1.tgz#cfe9d8c26628b9dc5aecc62a9f5d8f1f352c1195"
+  integrity sha1-z+nYwmYoudxa7MYqn12PHzUsEZU=
+
 array-ify@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/array-ify/-/array-ify-1.0.0.tgz#9e528762b4a9066ad163a6962a364418e9626ece"
@@ -1404,14 +1409,14 @@ braces@^2.3.1:
     split-string "^3.0.2"
     to-regex "^3.0.1"
 
-brfs@^1.6.1:
-  version "1.6.1"
-  resolved "https://registry.yarnpkg.com/brfs/-/brfs-1.6.1.tgz#b78ce2336d818e25eea04a0947cba6d4fb8849c3"
-  integrity sha512-OfZpABRQQf+Xsmju8XE9bDjs+uU4vLREGolP7bDgcpsI17QREyZ4Bl+2KLxxx1kCgA0fAIhKQBaBYh+PEcCqYQ==
+brfs@^2.0.2:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/brfs/-/brfs-2.0.2.tgz#44237878fa82aa479ce4f5fe2c1796ec69f07845"
+  integrity sha512-IrFjVtwu4eTJZyu8w/V2gxU7iLTtcHih67sgEdzrhjLBMHp2uYefUBfdM4k2UvcuWMgV7PQDZHSLeNWnLFKWVQ==
   dependencies:
     quote-stream "^1.0.1"
     resolve "^1.1.5"
-    static-module "^2.2.0"
+    static-module "^3.0.2"
     through2 "^2.0.0"
 
 brorand@^1.0.1:
@@ -2407,6 +2412,14 @@ cz-customizable@^5.2.0:
     winston "2.1.0"
     word-wrap "1.1.0"
 
+d@1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/d/-/d-1.0.1.tgz#8698095372d58dbee346ffd0c7093f99f8f9eb5a"
+  integrity sha512-m62ShEObQ39CfralilEQRjH6oAMtNCV1xJyEx5LpRYUVN+EviphDgUc/F3hnYbADmkiNs67Y+3ylmlG7Lnu+FA==
+  dependencies:
+    es5-ext "^0.10.50"
+    type "^1.0.1"
+
 dargs@^4.0.1:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/dargs/-/dargs-4.1.0.tgz#03a9dbb4b5c2f139bf14ae53f0b8a2a6a86f4e17"
@@ -2765,11 +2778,41 @@ es-to-primitive@^1.1.1:
     is-date-object "^1.0.1"
     is-symbol "^1.0.1"
 
+es5-ext@^0.10.35, es5-ext@^0.10.50, es5-ext@~0.10.14:
+  version "0.10.50"
+  resolved "https://registry.yarnpkg.com/es5-ext/-/es5-ext-0.10.50.tgz#6d0e23a0abdb27018e5ac4fd09b412bc5517a778"
+  integrity sha512-KMzZTPBkeQV/JcSQhI5/z6d9VWJ3EnQ194USTUwIYZ2ZbpN8+SGXQKt1h68EX44+qt+Fzr8DO17vnxrw7c3agw==
+  dependencies:
+    es6-iterator "~2.0.3"
+    es6-symbol "~3.1.1"
+    next-tick "^1.0.0"
+
 es6-error@^4.0.1:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/es6-error/-/es6-error-4.1.1.tgz#9e3af407459deed47e9a91f9b885a84eb05c561d"
   integrity sha512-Um/+FxMr9CISWh0bi5Zv0iOD+4cFh5qLeks1qhAopKVAJw3drgKbKySikp7wGhDL0HPeaja0P5ULZrxLkniUVg==
 
+es6-iterator@~2.0.1, es6-iterator@~2.0.3:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/es6-iterator/-/es6-iterator-2.0.3.tgz#a7de889141a05a94b0854403b2d0a0fbfa98f3b7"
+  integrity sha1-p96IkUGgWpSwhUQDstCg+/qY87c=
+  dependencies:
+    d "1"
+    es5-ext "^0.10.35"
+    es6-symbol "^3.1.1"
+
+es6-map@^0.1.5:
+  version "0.1.5"
+  resolved "https://registry.yarnpkg.com/es6-map/-/es6-map-0.1.5.tgz#9136e0503dcc06a301690f0bb14ff4e364e949f0"
+  integrity sha1-kTbgUD3MBqMBaQ8LsU/042TpSfA=
+  dependencies:
+    d "1"
+    es5-ext "~0.10.14"
+    es6-iterator "~2.0.1"
+    es6-set "~0.1.5"
+    es6-symbol "~3.1.1"
+    event-emitter "~0.3.5"
+
 es6-promise@^4.0.3:
   version "4.2.4"
   resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-4.2.4.tgz#dc4221c2b16518760bd8c39a52d8f356fc00ed29"
@@ -2782,6 +2825,25 @@ es6-promisify@^5.0.0:
   dependencies:
     es6-promise "^4.0.3"
 
+es6-set@^0.1.5, es6-set@~0.1.5:
+  version "0.1.5"
+  resolved "https://registry.yarnpkg.com/es6-set/-/es6-set-0.1.5.tgz#d2b3ec5d4d800ced818db538d28974db0a73ccb1"
+  integrity sha1-0rPsXU2ADO2BjbU40ol02wpzzLE=
+  dependencies:
+    d "1"
+    es5-ext "~0.10.14"
+    es6-iterator "~2.0.1"
+    es6-symbol "3.1.1"
+    event-emitter "~0.3.5"
+
+es6-symbol@3.1.1, es6-symbol@^3.1.1, es6-symbol@~3.1.1:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/es6-symbol/-/es6-symbol-3.1.1.tgz#bf00ef4fdab6ba1b46ecb7b629b4c7ed5715cc77"
+  integrity sha1-vwDvT9q2uhtG7Le2KbTH7VcVzHc=
+  dependencies:
+    d "1"
+    es5-ext "~0.10.14"
+
 escape-string-regexp@^1.0.2, escape-string-regexp@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz#1b61c0562190a8dff6ae3bb2cf0200ca130b86d4"
@@ -2921,11 +2983,24 @@ estraverse@~4.1.0:
   resolved "https://registry.yarnpkg.com/estraverse/-/estraverse-4.1.1.tgz#f6caca728933a850ef90661d0e17982ba47111a2"
   integrity sha1-9srKcokzqFDvkGYdDheYK6RxEaI=
 
+estree-is-function@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/estree-is-function/-/estree-is-function-1.0.0.tgz#c0adc29806d7f18a74db7df0f3b2666702e37ad2"
+  integrity sha512-nSCWn1jkSq2QAtkaVLJZY2ezwcFO161HVc174zL1KPW3RJ+O6C3eJb8Nx7OXzvhoEv+nLgSR1g71oWUHUDTrJA==
+
 esutils@^2.0.2:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/esutils/-/esutils-2.0.2.tgz#0abf4f1caa5bcb1f7a9d8acc6dea4faaa04bac9b"
   integrity sha1-Cr9PHKpbyx96nYrMbepPqqBLrJs=
 
+event-emitter@~0.3.5:
+  version "0.3.5"
+  resolved "https://registry.yarnpkg.com/event-emitter/-/event-emitter-0.3.5.tgz#df8c69eef1647923c7157b9ce83840610b02cc39"
+  integrity sha1-34xp7vFkeSPHFXuc6DhAYQsCzDk=
+  dependencies:
+    d "1"
+    es5-ext "~0.10.14"
+
 events@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/events/-/events-2.1.0.tgz#2a9a1e18e6106e0e812aa9ebd4a819b3c29c0ba5"
@@ -3082,16 +3157,6 @@ eyes@0.1.x:
   resolved "https://registry.yarnpkg.com/eyes/-/eyes-0.1.8.tgz#62cf120234c683785d902348a800ef3e0cc20bc0"
   integrity sha1-Ys8SAjTGg3hdkCNIqADvPgzCC8A=
 
-falafel@^2.1.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/falafel/-/falafel-2.1.0.tgz#96bb17761daba94f46d001738b3cedf3a67fe06c"
-  integrity sha1-lrsXdh2rqU9G0AFzizzt86Z/4Gw=
-  dependencies:
-    acorn "^5.0.0"
-    foreach "^2.0.5"
-    isarray "0.0.1"
-    object-keys "^1.0.6"
-
 fast-deep-equal@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/fast-deep-equal/-/fast-deep-equal-1.0.0.tgz#96256a3bc975595eb36d82e9929d060d893439ff"
@@ -3345,7 +3410,7 @@ gauge@~2.7.3:
     strip-ansi "^3.0.1"
     wide-align "^1.1.0"
 
-get-assigned-identifiers@^1.2.0:
+get-assigned-identifiers@^1.1.0, get-assigned-identifiers@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/get-assigned-identifiers/-/get-assigned-identifiers-1.2.0.tgz#6dbf411de648cbaf8d9169ebb0d2d576191e2ff1"
   integrity sha512-mBBwmeGTrxEMO4pMaaf/uUEFHnYtwr8FTe8Y/mer4rcV/bye0qGm6pw1bGZFGStxC5O76c5ZAVBGnqHmOaJpdQ==
@@ -4228,11 +4293,6 @@ is-wsl@^1.1.0:
   resolved "https://registry.yarnpkg.com/is-wsl/-/is-wsl-1.1.0.tgz#1f16e4aa22b04d1336b66188a66af3c600c3a66d"
   integrity sha1-HxbkqiKwTRM2tmGIpmrzxgDDpm0=
 
-isarray@0.0.1:
-  version "0.0.1"
-  resolved "https://registry.yarnpkg.com/isarray/-/isarray-0.0.1.tgz#8a18acfca9a8f4177e09abfc6038939b05d1eedf"
-  integrity sha1-ihis/Kmo9Bd+Cav8YDiTmwXR7t8=
-
 isarray@1.0.0, isarray@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/isarray/-/isarray-1.0.0.tgz#bb935d48582cba168c06834957a54a3e07124f11"
@@ -5481,6 +5541,11 @@ nested-error-stacks@^2.0.0:
   resolved "https://registry.yarnpkg.com/nested-error-stacks/-/nested-error-stacks-2.1.0.tgz#0fbdcf3e13fe4994781280524f8b96b0cdff9c61"
   integrity sha512-AO81vsIO1k1sM4Zrd6Hu7regmJN1NSiAja10gc4bX3F0wd+9rQmcuHQaHVQCYIEC8iFXnE+mavh23GOt7wBgug==
 
+next-tick@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/next-tick/-/next-tick-1.0.0.tgz#ca86d1fe8828169b0120208e3dc8424b9db8342c"
+  integrity sha1-yobR/ogoFpsBICCOPchCS524NCw=
+
 nice-try@^1.0.4:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/nice-try/-/nice-try-1.0.5.tgz#a3378a7696ce7d223e88fc9b764bd7ef1089e366"
@@ -5667,11 +5732,6 @@ object-inspect@~1.4.0:
   resolved "https://registry.yarnpkg.com/object-inspect/-/object-inspect-1.4.1.tgz#37ffb10e71adaf3748d05f713b4c9452f402cbc4"
   integrity sha512-wqdhLpfCUbEsoEwl3FXwGyv8ief1k/1aUdIPCqVnupM6e8l63BEJdiF/0swtn04/8p05tG/T0FrpTlfwvljOdw==
 
-object-keys@^1.0.6:
-  version "1.0.12"
-  resolved "https://registry.yarnpkg.com/object-keys/-/object-keys-1.0.12.tgz#09c53855377575310cca62f55bb334abff7b3ed2"
-  integrity sha512-FTMyFUm2wBcGHnH2eXmz7tC6IwlqQZ6mVZ+6dm6vZ4IQIHjs6FdNsQBuKGPuUUUY6NfJw2PshC08Tn6LzLDOag==
-
 object-keys@^1.0.8:
   version "1.0.11"
   resolved "https://registry.yarnpkg.com/object-keys/-/object-keys-1.0.11.tgz#c54601778ad560f1142ce0e01bcca8b56d13426d"
@@ -6270,7 +6330,7 @@ querystring@0.2.0:
   resolved "https://registry.yarnpkg.com/querystring/-/querystring-0.2.0.tgz#b209849203bb25df820da756e747005878521620"
   integrity sha1-sgmEkgO7Jd+CDadW50cAWHhSFiA=
 
-quote-stream@^1.0.1, quote-stream@~1.0.2:
+quote-stream@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/quote-stream/-/quote-stream-1.0.2.tgz#84963f8c9c26b942e153feeb53aae74652b7e0b2"
   integrity sha1-hJY/jJwmuULhU/7rU6rnRlK34LI=
@@ -6685,6 +6745,18 @@ saxes@^3.1.3:
   dependencies:
     xmlchars "^1.3.1"
 
+scope-analyzer@^2.0.1:
+  version "2.0.5"
+  resolved "https://registry.yarnpkg.com/scope-analyzer/-/scope-analyzer-2.0.5.tgz#72c9c6770c3e66984f84c7d3c7045998a1a7db8a"
+  integrity sha512-+U5H0417mnTEstCD5VwOYO7V4vYuSqwqjFap40ythe67bhMFL5C3UgPwyBv7KDJsqUBIKafOD57xMlh1rN7eaw==
+  dependencies:
+    array-from "^2.1.1"
+    es6-map "^0.1.5"
+    es6-set "^0.1.5"
+    es6-symbol "^3.1.1"
+    estree-is-function "^1.0.0"
+    get-assigned-identifiers "^1.1.0"
+
 semver-diff@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/semver-diff/-/semver-diff-2.1.0.tgz#4bbb8437c8d37e4b0cf1a68fd726ec6d645d6d36"
@@ -6991,10 +7063,10 @@ stack-utils@^1.0.1:
   resolved "https://registry.yarnpkg.com/stack-utils/-/stack-utils-1.0.1.tgz#d4f33ab54e8e38778b0ca5cfd3b3afb12db68620"
   integrity sha1-1PM6tU6OOHeLDKXP07OvsS22hiA=
 
-static-eval@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/static-eval/-/static-eval-2.0.0.tgz#0e821f8926847def7b4b50cda5d55c04a9b13864"
-  integrity sha512-6flshd3F1Gwm+Ksxq463LtFd1liC77N/PX1FVVc3OzL3hAmo2fwHFbuArkcfi7s9rTNsLEhcRmXGFZhlgy40uw==
+static-eval@^2.0.2:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/static-eval/-/static-eval-2.0.2.tgz#2d1759306b1befa688938454c546b7871f806a42"
+  integrity sha512-N/D219Hcr2bPjLxPiV+TQE++Tsmrady7TqAJugLy7Xk1EumfDWS/f5dtBbkRCGE7wKKXuYockQoj8Rm2/pVKyg==
   dependencies:
     escodegen "^1.8.1"
 
@@ -7006,24 +7078,24 @@ static-extend@^0.1.1:
     define-property "^0.2.5"
     object-copy "^0.1.0"
 
-static-module@^2.2.0:
-  version "2.2.5"
-  resolved "https://registry.yarnpkg.com/static-module/-/static-module-2.2.5.tgz#bd40abceae33da6b7afb84a0e4329ff8852bfbbf"
-  integrity sha512-D8vv82E/Kpmz3TXHKG8PPsCPg+RAX6cbCOyvjM6x04qZtQ47EtJFVwRsdov3n5d6/6ynrOY9XB4JkaZwB2xoRQ==
+static-module@^3.0.2:
+  version "3.0.3"
+  resolved "https://registry.yarnpkg.com/static-module/-/static-module-3.0.3.tgz#cc2301ed3fe353e2d2a2195137013853676f9960"
+  integrity sha512-RDaMYaI5o/ym0GkCqL/PlD1Pn216omp8fY81okxZ6f6JQxWW5tptOw9reXoZX85yt/scYvbWIt6uoszeyf+/MQ==
   dependencies:
+    acorn-node "^1.3.0"
     concat-stream "~1.6.0"
     convert-source-map "^1.5.1"
     duplexer2 "~0.1.4"
     escodegen "~1.9.0"
-    falafel "^2.1.0"
     has "^1.0.1"
     magic-string "^0.22.4"
     merge-source-map "1.0.4"
     object-inspect "~1.4.0"
-    quote-stream "~1.0.2"
     readable-stream "~2.3.3"
+    scope-analyzer "^2.0.1"
     shallow-copy "~0.0.1"
-    static-eval "^2.0.0"
+    static-eval "^2.0.2"
     through2 "~2.0.3"
 
 stealthy-require@^1.1.0:
@@ -7504,6 +7576,11 @@ type-check@~0.3.2:
   dependencies:
     prelude-ls "~1.1.2"
 
+type@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/type/-/type-1.0.1.tgz#084c9a17fcc9151a2cdb1459905c2e45e4bb7d61"
+  integrity sha512-MAM5dBMJCJNKs9E7JXo4CXRAansRfG0nlJxW7Wf6GZzSOvH31zClSaHdIMWLehe/EGMBkqeC55rrkaOr5Oo7Nw==
+
 typedarray@^0.0.6:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"

From 9cef08299a2c69a3a81e8da802051b630dffb259 Mon Sep 17 00:00:00 2001
From: remexllee <remexllee@gmail.com>
Date: Mon, 8 Jul 2019 18:17:02 -0400
Subject: [PATCH 074/110] tests: improve drag-and-drop coverage (#9314)

---
 lighthouse-viewer/test/drag-and-drop-test.js | 67 ++++++++++++++------
 1 file changed, 46 insertions(+), 21 deletions(-)

diff --git a/lighthouse-viewer/test/drag-and-drop-test.js b/lighthouse-viewer/test/drag-and-drop-test.js
index 641c14633af1..7b1d67c78110 100644
--- a/lighthouse-viewer/test/drag-and-drop-test.js
+++ b/lighthouse-viewer/test/drag-and-drop-test.js
@@ -7,8 +7,6 @@
 
 /* eslint-env jest */
 
-const assert = require('assert');
-
 const testHelpers = require('./test-helpers.js');
 
 // Called before other src import so code that relies on `document` and
@@ -17,10 +15,6 @@ testHelpers.setupJsDomGlobals();
 
 const DragAndDrop = require('../app/src/drag-and-drop.js');
 
-function assertUIReset() {
-  assert.ok(!document.querySelector('.drop_zone').classList.contains('dropping'));
-}
-
 describe('DragAndDrop', () => {
   beforeEach(function() {
     // Reconstruct page on every test so event listeners are clean.
@@ -29,31 +23,62 @@ describe('DragAndDrop', () => {
 
   afterEach(testHelpers.cleanupJsDomGlobals);
 
-  // TODO: test drop event on document. Callback is not getting called
-  // because jsdom doesn't support clipboard API: https://github.com/tmpvar/jsdom/issues/1568/.
-  it.skip('document responds to drag and drop events', done => {
-    const callback = _ => {
-      assert.ok(true, 'file change callback is called after drop event');
-      done();
+  it('document responds to drop event with file', () => {
+    const mockCallback = jest.fn();
+    new DragAndDrop(mockCallback);
+
+    // create custom drop event with mock files in dataTransfer
+    const event = new window.CustomEvent('drop');
+    event.dataTransfer = {
+      files: ['mock file'],
     };
+    document.dispatchEvent(event);
+    expect(mockCallback).toBeCalledWith('mock file');
+  });
 
-    new DragAndDrop(callback);
+  it('document ignores drop event without file', () => {
+    const mockCallback = jest.fn();
+    new DragAndDrop(mockCallback);
 
     document.dispatchEvent(new window.CustomEvent('drop'));
+    expect(mockCallback).not.toBeCalled();
+  });
+
+  it('document responds to dragover event with file', () => {
+    const mockCallback = jest.fn();
+    new DragAndDrop(mockCallback);
+
+    const event = new window.CustomEvent('dragover');
+    event.dataTransfer = {
+      files: ['mock file'],
+    };
+    document.dispatchEvent(event);
+    expect(event.dataTransfer.dropEffect).toEqual('copy');
+  });
+
+  it('document ignores dragover event without file', () => {
+    const mockCallback = jest.fn();
+    new DragAndDrop(mockCallback);
+
+    const event = new window.CustomEvent('dragover');
+    document.dispatchEvent(event);
+    expect(event.dataTransfer).toBeUndefined();
   });
 
-  it('document responds to drag and drop events', () => {
-    // eslint-disable-next-line no-unused-vars
-    const dragAndDrop = new DragAndDrop();
+  it('document responds to mouseleave event when not dragging', () => {
+    new DragAndDrop(jest.fn);
 
     document.dispatchEvent(new window.CustomEvent('mouseleave'));
-    assertUIReset();
+    expect(document.querySelector('.drop_zone').classList.contains('dropping')).toBeFalsy();
+  });
+
+  it('document responds to mouseleave and dragenter events', () => {
+    new DragAndDrop(jest.fn);
 
     document.dispatchEvent(new window.CustomEvent('dragenter'));
-    assert.ok(document.querySelector('.drop_zone').classList.contains('dropping'));
+    expect(document.querySelector('.drop_zone').classList.contains('dropping')).toBeTruthy();
 
-    // TODO: see note above about drop event testing.
-    // document.dispatchEvent(new window.CustomEvent('drop'));
-    // assertUIReset();
+    document.dispatchEvent(new window.CustomEvent('mouseleave'));
+    expect(document.querySelector('.drop_zone').classList.contains('dropping')).toBeFalsy();
   });
 });

From 25b309fcc67a99a7e265f9b849a8a499bda8f9e2 Mon Sep 17 00:00:00 2001
From: Brendan Kenny <bckenny@gmail.com>
Date: Mon, 8 Jul 2019 16:14:02 -0700
Subject: [PATCH 075/110] core: localize invalid URL error message (#9334)

---
 lighthouse-core/index.js            |  8 -------
 lighthouse-core/runner.js           | 11 ++++-----
 lighthouse-core/test/index-test.js  | 36 ++++++++++++++++-------------
 lighthouse-core/test/runner-test.js | 20 +++++++++-------
 4 files changed, 36 insertions(+), 39 deletions(-)

diff --git a/lighthouse-core/index.js b/lighthouse-core/index.js
index 65b9ba1bbb3f..bc7093ad3f83 100644
--- a/lighthouse-core/index.js
+++ b/lighthouse-core/index.js
@@ -10,9 +10,6 @@ const log = require('lighthouse-logger');
 const ChromeProtocol = require('./gather/connections/cri.js');
 const Config = require('./config/config.js');
 
-const URL = require('./lib/url-shim.js');
-const LHError = require('./lib/lh-error.js');
-
 /** @typedef {import('./gather/connections/connection.js')} Connection */
 
 /*
@@ -39,11 +36,6 @@ const LHError = require('./lib/lh-error.js');
  * @return {Promise<LH.RunnerResult|undefined>}
  */
 async function lighthouse(url, flags = {}, configJSON, connection) {
-  // verify the url is valid and that protocol is allowed
-  if (url && (!URL.isValid(url) || !URL.isProtocolAllowed(url))) {
-    throw new LHError(LHError.errors.INVALID_URL);
-  }
-
   // set logging preferences, assume quiet
   flags.logLevel = flags.logLevel || 'error';
   log.setLevel(flags.logLevel);
diff --git a/lighthouse-core/runner.js b/lighthouse-core/runner.js
index 689ed67996c1..029f89807a46 100644
--- a/lighthouse-core/runner.js
+++ b/lighthouse-core/runner.js
@@ -70,15 +70,12 @@ class Runner {
           throw new Error('Cannot run audit mode on different URL');
         }
       } else {
-        if (typeof runOpts.url !== 'string' || runOpts.url.length === 0) {
-          throw new Error(`You must provide a url to the runner. '${runOpts.url}' provided.`);
-        }
-
-        try {
+        // verify the url is valid and that protocol is allowed
+        if (runOpts.url && URL.isValid(runOpts.url) && URL.isProtocolAllowed(runOpts.url)) {
           // Use canonicalized URL (with trailing slashes and such)
           requestedUrl = new URL(runOpts.url).href;
-        } catch (e) {
-          throw new Error('The url provided should have a proper protocol and hostname.');
+        } else {
+          throw new LHError(LHError.errors.INVALID_URL);
         }
 
         artifacts = await Runner._gatherArtifactsFromBrowser(requestedUrl, runOpts, connection);
diff --git a/lighthouse-core/test/index-test.js b/lighthouse-core/test/index-test.js
index e5c678c77154..c56e77851f6e 100644
--- a/lighthouse-core/test/index-test.js
+++ b/lighthouse-core/test/index-test.js
@@ -87,22 +87,26 @@ describe('Module Tests', function() {
       });
   });
 
-  it('should throw an error when the url is invalid', function() {
-    return lighthouse('https:/i-am-not-valid', {}, {})
-      .then(() => {
-        throw new Error('Should not have resolved when url is invalid');
-      }, err => {
-        assert.ok(err);
-      });
-  });
-
-  it('should throw an error when the url is invalid protocol (file:///)', function() {
-    return lighthouse('file:///a/fake/index.html', {}, {})
-      .then(() => {
-        throw new Error('Should not have resolved when url is file:///');
-      }, err => {
-        assert.ok(err);
-      });
+  it('should throw an error when the url is invalid', async () => {
+    expect.hasAssertions();
+    try {
+      await lighthouse('i-am-not-valid', {}, {});
+    } catch (err) {
+      expect(err.friendlyMessage)
+          .toBeDisplayString('The URL you have provided appears to be invalid.');
+      expect(err.code).toEqual('INVALID_URL');
+    }
+  });
+
+  it('should throw an error when the url is invalid protocol (file:///)', async () => {
+    expect.hasAssertions();
+    try {
+      await lighthouse('file:///a/fake/index.html', {}, {});
+    } catch (err) {
+      expect(err.friendlyMessage)
+          .toBeDisplayString('The URL you have provided appears to be invalid.');
+      expect(err.code).toEqual('INVALID_URL');
+    }
   });
 
   it('should return formatted LHR when given no categories', function() {
diff --git a/lighthouse-core/test/runner-test.js b/lighthouse-core/test/runner-test.js
index bb9b38c6cb11..ccf4bf339401 100644
--- a/lighthouse-core/test/runner-test.js
+++ b/lighthouse-core/test/runner-test.js
@@ -514,20 +514,24 @@ describe('Runner', () => {
   });
 
 
-  it('rejects when not given a URL', () => {
-    return Runner.run({}, {}).then(_ => assert.ok(false), _ => assert.ok(true));
+  it('rejects when not given a URL', async () => {
+    const config = new Config({});
+    await expect(Runner.run({}, {config})).rejects.toThrow('INVALID_URL');
   });
 
-  it('rejects when given a URL of zero length', () => {
-    return Runner.run({}, {url: ''}).then(_ => assert.ok(false), _ => assert.ok(true));
+  it('rejects when given a URL of zero length', async () => {
+    const config = new Config({});
+    await expect(Runner.run({}, {url: '', config})).rejects.toThrow('INVALID_URL');
   });
 
-  it('rejects when given a URL without protocol', () => {
-    return Runner.run({}, {url: 'localhost'}).then(_ => assert.ok(false), _ => assert.ok(true));
+  it('rejects when given a URL without protocol', async () => {
+    const config = new Config({});
+    await expect(Runner.run({}, {url: 'localhost', config})).rejects.toThrow('INVALID_URL');
   });
 
-  it('rejects when given a URL without hostname', () => {
-    return Runner.run({}, {url: 'https://'}).then(_ => assert.ok(false), _ => assert.ok(true));
+  it('rejects when given a URL without hostname', async () => {
+    const config = new Config({});
+    await expect(Runner.run({}, {url: 'https://', config})).rejects.toThrow('INVALID_URL');
   });
 
   it('only supports core audits with names matching their filename', () => {

From 5e52dcca72b35943d14cc7c27613517c425250b9 Mon Sep 17 00:00:00 2001
From: Paul Irish <paulirish@google.com>
Date: Tue, 9 Jul 2019 12:20:46 -0700
Subject: [PATCH 076/110] misc(build): adjust deployment filenames (#9338)

---
 .../scripts/build-report-for-autodeployment.js         | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/lighthouse-core/scripts/build-report-for-autodeployment.js b/lighthouse-core/scripts/build-report-for-autodeployment.js
index 7fdc9d06a71a..1fd9c29046e5 100644
--- a/lighthouse-core/scripts/build-report-for-autodeployment.js
+++ b/lighthouse-core/scripts/build-report-for-autodeployment.js
@@ -11,6 +11,7 @@
 const fs = require('fs');
 const path = require('path');
 const mkdirp = require('mkdirp').sync;
+const rimraf = require('rimraf').sync;
 const swapLocale = require('../lib/i18n/swap-locale.js');
 
 const ReportGenerator = require('../../lighthouse-core/report/report-generator.js');
@@ -27,7 +28,7 @@ const DIST = path.join(__dirname, `../../dist`);
   const filenameToLhr = {
     'english': lhr,
     'espanol': swapLocale(lhr, 'es').lhr,
-    'arabic': swapLocale(lhr, 'ar').lhr,
+    'ɑrabic': swapLocale(lhr, 'ar').lhr,
     'xl-accented': swapLocale(lhr, 'en-XL').lhr,
     'error': errorLhr,
   };
@@ -36,14 +37,14 @@ const DIST = path.join(__dirname, `../../dist`);
   Object.entries(filenameToLhr).forEach(([filename, lhr]) => {
     let html = ReportGenerator.generateReportHtml(lhr);
     // TODO: PSI is another variant to consider
-    for (const variant of ['', '-devtools']) {
-      if (variant === '-devtools') {
+    for (const variant of ['', '⌣.cdt.']) {
+      if (variant.includes('cdt')) {
         // TODO: Make the DevTools Audits panel "emulation" more comprehensive
         // - the parent widget/vbox container with overflow
         // - a more constrained/realistic default size
         html = html.replace(`"lh-root lh-vars"`, `"lh-root lh-vars lh-devtools"`);
       }
-      const filepath = `${DIST}/${filename}${variant}/index.html`;
+      const filepath = `${DIST}/${variant}${filename}/index.html`;
       mkdirp(path.dirname(filepath));
       fs.writeFileSync(filepath, html, {encoding: 'utf-8'});
       console.log('✅', filepath, 'written.');
@@ -124,5 +125,6 @@ async function generateErrorLHR() {
   appleTouchIconAudit.scoreDisplayMode = 'binary';
   appleTouchIconAudit.score = 1;
 
+  rimraf(TMP);
   return errorLhr;
 }

From 4c658d272705cc68f1b55a898a2c7fb5f881b57c Mon Sep 17 00:00:00 2001
From: Connor Clark <cjamcl@google.com>
Date: Tue, 9 Jul 2019 16:03:24 -0700
Subject: [PATCH 077/110] tests(smokehouse): assert on expected array length
 (#9292)

Co-Authored-By: Brendan Kenny <bckenny@gmail.com>
---
 .../smokehouse/byte-efficiency/expectations.js     |  3 +++
 .../test/smokehouse/error-expectations.js          | 14 ++++++++++----
 .../test/smokehouse/smokehouse-report.js           | 12 ++++++++++++
 3 files changed, 25 insertions(+), 4 deletions(-)

diff --git a/lighthouse-cli/test/smokehouse/byte-efficiency/expectations.js b/lighthouse-cli/test/smokehouse/byte-efficiency/expectations.js
index 649b674e44ae..7b69fdae3841 100644
--- a/lighthouse-cli/test/smokehouse/byte-efficiency/expectations.js
+++ b/lighthouse-cli/test/smokehouse/byte-efficiency/expectations.js
@@ -140,6 +140,9 @@ module.exports = [
                 transferSize: 53181,
                 resourceSize: 52997,
               },
+              {
+                url: 'http://localhost:10200/favicon.ico',
+              },
             ],
           },
         },
diff --git a/lighthouse-cli/test/smokehouse/error-expectations.js b/lighthouse-cli/test/smokehouse/error-expectations.js
index 57c3e60cb073..7030f03f02a2 100644
--- a/lighthouse-cli/test/smokehouse/error-expectations.js
+++ b/lighthouse-cli/test/smokehouse/error-expectations.js
@@ -5,6 +5,12 @@
  */
 'use strict';
 
+// Just using `[]` actually asserts for an empty array.
+// Use this expectation object to assert an array with at least one element.
+const NONEMPTY_ARRAY = {
+  length: '>0',
+};
+
 /**
  * Expected Lighthouse audit values for sites with various errors.
  */
@@ -24,10 +30,10 @@ module.exports = [
     artifacts: {
       PageLoadError: {code: 'PAGE_HUNG'},
       devtoolsLogs: {
-        'pageLoadError-defaultPass': [/* ... */],
+        'pageLoadError-defaultPass': NONEMPTY_ARRAY,
       },
       traces: {
-        'pageLoadError-defaultPass': {traceEvents: [/* ... */]},
+        'pageLoadError-defaultPass': {traceEvents: NONEMPTY_ARRAY},
       },
     },
   },
@@ -46,10 +52,10 @@ module.exports = [
     artifacts: {
       PageLoadError: {code: 'INSECURE_DOCUMENT_REQUEST'},
       devtoolsLogs: {
-        'pageLoadError-defaultPass': [/* ... */],
+        'pageLoadError-defaultPass': NONEMPTY_ARRAY,
       },
       traces: {
-        'pageLoadError-defaultPass': {traceEvents: [/* ... */]},
+        'pageLoadError-defaultPass': {traceEvents: NONEMPTY_ARRAY},
       },
     },
   },
diff --git a/lighthouse-cli/test/smokehouse/smokehouse-report.js b/lighthouse-cli/test/smokehouse/smokehouse-report.js
index 5f670a38a394..37fe6d26a357 100644
--- a/lighthouse-cli/test/smokehouse/smokehouse-report.js
+++ b/lighthouse-cli/test/smokehouse/smokehouse-report.js
@@ -98,6 +98,18 @@ function findDifference(path, actual, expected) {
     }
   }
 
+  // If the expected value is an array, assert the length as well.
+  // This still allows for asserting that the first n elements of an array are specified elements,
+  // but requires using an object literal (ex: {0: x, 1: y, 2: z} matches [x, y, z, q, w, e] and
+  // {0: x, 1: y, 2: z, length: 5} does not match [x, y, z].
+  if (Array.isArray(expected) && actual.length !== expected.length) {
+    return {
+      path: `${path}.length`,
+      actual,
+      expected,
+    };
+  }
+
   return null;
 }
 

From 7317676af233627869796ef96b66bdf405298882 Mon Sep 17 00:00:00 2001
From: Paul Irish <paulirish@google.com>
Date: Wed, 10 Jul 2019 12:35:46 -0700
Subject: [PATCH 078/110] deps: chrome-launcher@0.11.1 (#9339)

---
 .../scripts/manual-chrome-launcher.js         | 21 ++++++++++++-------
 package.json                                  |  2 +-
 yarn.lock                                     | 18 ++++++++--------
 3 files changed, 23 insertions(+), 18 deletions(-)

diff --git a/lighthouse-core/scripts/manual-chrome-launcher.js b/lighthouse-core/scripts/manual-chrome-launcher.js
index 2e13cc4c978c..80ce39cf913a 100755
--- a/lighthouse-core/scripts/manual-chrome-launcher.js
+++ b/lighthouse-core/scripts/manual-chrome-launcher.js
@@ -1,7 +1,6 @@
 #!/usr/bin/env node
 
 'use strict';
-
 /**
  * @fileoverview Script to launch a clean Chrome instance on-demand.
  *
@@ -14,29 +13,35 @@
  *     chrome-debug --enable-extensions
  */
 
-const {launch} = require('chrome-launcher');
+const {Launcher, launch} = require('chrome-launcher');
 
 const args = process.argv.slice(2);
-let chromeFlags;
+const chromeFlags = [];
 let startingUrl;
 let port;
-let enableExtensions;
+let ignoreDefaultFlags;
 
 if (args.length) {
-  chromeFlags = args.filter(flag => flag.startsWith('--'));
+  const providedFlags = args.filter(flag => flag.startsWith('--'));
 
-  const portFlag = chromeFlags.find(flag => flag.startsWith('--port='));
+  const portFlag = providedFlags.find(flag => flag.startsWith('--port='));
   if (portFlag) port = parseInt(portFlag.replace('--port=', ''), 10);
 
-  enableExtensions = !!chromeFlags.find(flag => flag === '--enable-extensions');
+  const enableExtensions = !!providedFlags.find(flag => flag === '--enable-extensions');
+  // The basic pattern for enabling Chrome extensions
+  if (enableExtensions) {
+    ignoreDefaultFlags = true;
+    chromeFlags.push(...Launcher.defaultFlags().filter(flag => flag !== '--disable-extensions'));
+  }
 
+  chromeFlags.push(...providedFlags);
   startingUrl = args.find(flag => !flag.startsWith('--'));
 }
 
 launch({
   startingUrl,
   port,
-  enableExtensions,
+  ignoreDefaultFlags,
   chromeFlags,
 })
 // eslint-disable-next-line no-console
diff --git a/package.json b/package.json
index 1b6e5bc1c715..9fd297a150c2 100644
--- a/package.json
+++ b/package.json
@@ -138,7 +138,7 @@
   },
   "dependencies": {
     "axe-core": "3.2.2",
-    "chrome-launcher": "^0.10.7",
+    "chrome-launcher": "^0.11.1",
     "configstore": "^3.1.1",
     "cssstyle": "1.2.1",
     "details-element-polyfill": "2.2.0",
diff --git a/yarn.lock b/yarn.lock
index d18514554fc3..fe05320f0fc4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1788,13 +1788,13 @@ chownr@^1.0.1:
   resolved "https://registry.yarnpkg.com/chownr/-/chownr-1.1.1.tgz#54726b8b8fff4df053c42187e801fb4412df1494"
   integrity sha512-j38EvO5+LHX84jlo6h4UzmOwi0UgW61WRyPtJz4qaadK5eY3BTS5TY/S1Stc3Uk2lIM6TPevAlULiEJwie860g==
 
-chrome-launcher@^0.10.7:
-  version "0.10.7"
-  resolved "https://registry.yarnpkg.com/chrome-launcher/-/chrome-launcher-0.10.7.tgz#5e2a9e99f212e0501d9c7024802acd01a812f5d5"
-  integrity sha512-IoQLp64s2n8OQuvKZwt77CscVj3UlV2Dj7yZtd1EBMld9mSdGcsGy9fN5hd/r4vJuWZR09it78n1+A17gB+AIQ==
+chrome-launcher@^0.11.1:
+  version "0.11.1"
+  resolved "https://registry.yarnpkg.com/chrome-launcher/-/chrome-launcher-0.11.1.tgz#ccc5bd971c76cdd263d17acacaeb762454c1af92"
+  integrity sha512-Om9LtiJ+FIh8sfhx8HaN4Petj75dIVeTBNUbXIXPIS5W3y9dyNRGmChcl0Z5trQkcy+8XDJA3NWicYdpZeF+DA==
   dependencies:
     "@types/node" "*"
-    is-wsl "^1.1.0"
+    is-wsl "^2.1.0"
     lighthouse-logger "^1.0.0"
     mkdirp "0.5.1"
     rimraf "^2.6.1"
@@ -4288,10 +4288,10 @@ is-windows@^1.0.2:
   resolved "https://registry.yarnpkg.com/is-windows/-/is-windows-1.0.2.tgz#d1850eb9791ecd18e6182ce12a30f396634bb19d"
   integrity sha512-eXK1UInq2bPmjyX6e3VHIzMLobc4J94i4AWn+Hpq3OU5KkrRC96OAcR3PRJ/pGu6m8TRnBHP9dkXQVsT/COVIA==
 
-is-wsl@^1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/is-wsl/-/is-wsl-1.1.0.tgz#1f16e4aa22b04d1336b66188a66af3c600c3a66d"
-  integrity sha1-HxbkqiKwTRM2tmGIpmrzxgDDpm0=
+is-wsl@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/is-wsl/-/is-wsl-2.1.0.tgz#94369bbeb2249ef07b831b1b08590e686330ccbb"
+  integrity sha512-pFTjpv/x5HRj8kbZ/Msxi9VrvtOMRBqaDi3OIcbwPI3OuH+r3lLxVWukLITBaOGJIbA/w2+M1eVmVa4XNQlAmQ==
 
 isarray@1.0.0, isarray@~1.0.0:
   version "1.0.0"

From fa9bda4e3244fdb17fceaeed62fb3ca5c08e7997 Mon Sep 17 00:00:00 2001
From: Connor Clark <cjamcl@gmail.com>
Date: Wed, 10 Jul 2019 14:40:55 -0700
Subject: [PATCH 079/110] report: show disabled checkbox when all/no urls are
 third-party (#9299)

---
 .../html/renderer/report-ui-features.js       | 11 ++++++++---
 lighthouse-core/report/html/templates.html    |  4 +++-
 .../html/renderer/report-ui-features-test.js  | 19 +++++++++----------
 3 files changed, 20 insertions(+), 14 deletions(-)

diff --git a/lighthouse-core/report/html/renderer/report-ui-features.js b/lighthouse-core/report/html/renderer/report-ui-features.js
index ab947a78f319..3ad38e014e13 100644
--- a/lighthouse-core/report/html/renderer/report-ui-features.js
+++ b/lighthouse-core/report/html/renderer/report-ui-features.js
@@ -234,12 +234,11 @@ class ReportUIFeatures {
     tablesWithUrls.forEach((tableEl, index) => {
       const urlItems = this._getUrlItems(tableEl);
       const thirdPartyRows = this._getThirdPartyRows(tableEl, urlItems, this.json.finalUrl);
-      // If all or none of the rows are 3rd party, no checkbox!
-      if (thirdPartyRows.size === urlItems.length || !thirdPartyRows.size) return;
 
       // create input box
       const filterTemplate = this._dom.cloneTemplate('#tmpl-lh-3p-filter', this._templateContext);
-      const filterInput = this._dom.find('input', filterTemplate);
+      const filterInput =
+        /** @type {HTMLInputElement} */ (this._dom.find('input', filterTemplate));
       const id = `lh-3p-filter-label--${index}`;
 
       filterInput.id = id;
@@ -265,6 +264,12 @@ class ReportUIFeatures {
       this._dom.find('.lh-3p-ui-string', filterTemplate).textContent =
           Util.UIStrings.thirdPartyResourcesLabel;
 
+      // If all or none of the rows are 3rd party, disable the checkbox.
+      if (thirdPartyRows.size === urlItems.length || !thirdPartyRows.size) {
+        filterInput.disabled = true;
+        filterInput.checked = thirdPartyRows.size === urlItems.length;
+      }
+
       // Finally, add checkbox to the DOM.
       if (!tableEl.parentNode) return; // Keep tsc happy.
       tableEl.parentNode.insertBefore(filterTemplate, tableEl);
diff --git a/lighthouse-core/report/html/templates.html b/lighthouse-core/report/html/templates.html
index 34f1c9698149..26687d46d844 100644
--- a/lighthouse-core/report/html/templates.html
+++ b/lighthouse-core/report/html/templates.html
@@ -786,10 +786,12 @@
       padding: 6px;
     }
     .lh-3p-filter-label, .lh-3p-filter-input {
-      cursor: pointer;
       vertical-align: middle;
       user-select: none;
     }
+    .lh-3p-filter-input:disabled + .lh-3p-ui-string {
+      text-decoration: line-through;
+    }
   </style>
   <div class="lh-3p-filter">
     <label class="lh-3p-filter-label">
diff --git a/lighthouse-core/test/report/html/renderer/report-ui-features-test.js b/lighthouse-core/test/report/html/renderer/report-ui-features-test.js
index 2beb09fec0b0..577cbb2b6f70 100644
--- a/lighthouse-core/test/report/html/renderer/report-ui-features-test.js
+++ b/lighthouse-core/test/report/html/renderer/report-ui-features-test.js
@@ -206,18 +206,17 @@ describe('ReportUIFeatures', () => {
           .toThrowError('query #uses-rel-preconnect .lh-3p-filter-input not found');
       });
 
-      it('adds no filter for audits with tables containing only third party resources', () => {
-        const checkboxClassName = 'lh-3p-filter-input';
-
-        expect(() => dom.find(`#render-blocking-resources .${checkboxClassName}`, container))
-          .toThrowError('query #render-blocking-resources .lh-3p-filter-input not found');
+      it('filter is disabled and checked for when just third party resources', () => {
+        const filterCheckbox =
+          dom.find('#render-blocking-resources .lh-3p-filter-input', container);
+        expect(filterCheckbox.disabled).toEqual(true);
+        expect(filterCheckbox.checked).toEqual(true);
       });
 
-      it('adds no filter for audits with tables containing only first party resources', () => {
-        const checkboxClassName = 'lh-3p-filter-input';
-
-        expect(() => dom.find(`#uses-text-compression .${checkboxClassName}`, container))
-          .toThrowError('query #uses-text-compression .lh-3p-filter-input not found');
+      it('filter is disabled and not checked for just first party resources', () => {
+        const filterCheckbox = dom.find('#uses-text-compression .lh-3p-filter-input', container);
+        expect(filterCheckbox.disabled).toEqual(true);
+        expect(filterCheckbox.checked).toEqual(false);
       });
     });
   });

From 069d8dbe7123dea5d21d1e3127c8ce9cc442e33a Mon Sep 17 00:00:00 2001
From: Brendan Kenny <bckenny@gmail.com>
Date: Wed, 10 Jul 2019 14:49:26 -0700
Subject: [PATCH 080/110] core(domstats): support an empty html body (#9340)

---
 lighthouse-core/gather/gatherers/dobetterweb/domstats.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lighthouse-core/gather/gatherers/dobetterweb/domstats.js b/lighthouse-core/gather/gatherers/dobetterweb/domstats.js
index bccbdfe7c576..faeb5f310075 100644
--- a/lighthouse-core/gather/gatherers/dobetterweb/domstats.js
+++ b/lighthouse-core/gather/gatherers/dobetterweb/domstats.js
@@ -86,8 +86,8 @@ function elementPathInDOM(element) {
 /* istanbul ignore next */
 function getDOMStats(element, deep = true) {
   let deepestElement = null;
-  let maxDepth = 0;
-  let maxWidth = 0;
+  let maxDepth = -1;
+  let maxWidth = -1;
   let numElements = 0;
   let parentWithMostChildren = null;
 

From c4664b3cd5974afcecb19f56f7207bc3e30f207d Mon Sep 17 00:00:00 2001
From: Patrick Hulce <patrick.hulce@gmail.com>
Date: Wed, 10 Jul 2019 16:50:30 -0500
Subject: [PATCH 081/110] deps: update axe-core to 3.3.0 (#9343)

---
 lighthouse-cli/test/smokehouse/a11y/expectations.js | 2 +-
 lighthouse-core/gather/gatherers/accessibility.js   | 2 ++
 package.json                                        | 2 +-
 yarn.lock                                           | 8 ++++----
 4 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/lighthouse-cli/test/smokehouse/a11y/expectations.js b/lighthouse-cli/test/smokehouse/a11y/expectations.js
index 9f29e47c349b..214b4fee2170 100644
--- a/lighthouse-cli/test/smokehouse/a11y/expectations.js
+++ b/lighthouse-cli/test/smokehouse/a11y/expectations.js
@@ -121,7 +121,7 @@ module.exports = [
                   'type': 'node',
                   'selector': '#button-name',
                   'snippet': '<button id="button-name"></button>',
-                  'explanation': 'Fix all of the following:\n  Element is in tab order and does not have accessible text\n\nFix any of the following:\n  Element has a value attribute and the value attribute is empty\n  Element has no value attribute or the value attribute is empty\n  Element does not have inner text that is visible to screen readers\n  aria-label attribute does not exist or is empty\n  aria-labelledby attribute does not exist, references elements that do not exist or references elements that are empty\n  Element\'s default semantics were not overridden with role="presentation"\n  Element\'s default semantics were not overridden with role="none"\n  Element has no title attribute or the title attribute is empty',
+                  'explanation': 'Fix any of the following:\n  Element does not have inner text that is visible to screen readers\n  aria-label attribute does not exist or is empty\n  aria-labelledby attribute does not exist, references elements that do not exist or references elements that are empty\n  Element\'s default semantics were not overridden with role="presentation"\n  Element\'s default semantics were not overridden with role="none"\n  Element has no title attribute or the title attribute is empty',
                   'nodeLabel': 'button',
                 },
               },
diff --git a/lighthouse-core/gather/gatherers/accessibility.js b/lighthouse-core/gather/gatherers/accessibility.js
index d8cbcb655651..e4aa8b491e86 100644
--- a/lighthouse-core/gather/gatherers/accessibility.js
+++ b/lighthouse-core/gather/gatherers/accessibility.js
@@ -47,6 +47,8 @@ function runA11yChecks() {
       'server-side-image-map': {enabled: false},
       'aria-hidden-focus': {enabled: false},
       'form-field-multiple-labels': {enabled: false},
+      'aria-input-field-name': {enabled: false},
+      'aria-toggle-field-name': {enabled: false},
     },
     // @ts-ignore
   }).then(axeResult => {
diff --git a/package.json b/package.json
index 9fd297a150c2..812c02607df1 100644
--- a/package.json
+++ b/package.json
@@ -137,7 +137,7 @@
     "zone.js": "^0.7.3"
   },
   "dependencies": {
-    "axe-core": "3.2.2",
+    "axe-core": "3.3.0",
     "chrome-launcher": "^0.11.1",
     "configstore": "^3.1.1",
     "cssstyle": "1.2.1",
diff --git a/yarn.lock b/yarn.lock
index fe05320f0fc4..5977a591b60a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1135,10 +1135,10 @@ aws4@^1.8.0:
   resolved "https://registry.yarnpkg.com/aws4/-/aws4-1.8.0.tgz#f0e003d9ca9e7f59c7a508945d7b2ef9a04a542f"
   integrity sha512-ReZxvNHIOv88FlT7rxcXIIC0fPt4KZqZbOlivyWtXLt8ESx84zd3kMC6iK5jVeS2qt+g7ftS7ye4fi06X5rtRQ==
 
-axe-core@3.2.2:
-  version "3.2.2"
-  resolved "https://registry.yarnpkg.com/axe-core/-/axe-core-3.2.2.tgz#b06d6e9ae4636d706068843272bfaeed3fe97362"
-  integrity sha512-gAy4kMSPpuRJV3mwictJqlg5LhE84Vw2CydKdC4tvrLhR6+G3KW51zbL/vYujcLA2jvWOq3HMHrVeNuw+mrLVA==
+axe-core@3.3.0:
+  version "3.3.0"
+  resolved "https://registry.yarnpkg.com/axe-core/-/axe-core-3.3.0.tgz#3b32d7e54390d89ff4891b20394d33ad7a192776"
+  integrity sha512-54XaTd2VB7A6iBnXMUG2LnBOI7aRbnrVxC5Tz+rVUwYl9MX/cIJc/Ll32YUoFIE/e9UKWMZoQenQu9dFrQyZCg==
 
 axios@0.15.3:
   version "0.15.3"

From 0c78f37d2889c72119f0d450420a7c4af7fcc77f Mon Sep 17 00:00:00 2001
From: Brendan Kenny <bckenny@gmail.com>
Date: Wed, 10 Jul 2019 15:58:50 -0700
Subject: [PATCH 082/110] deps: update outdated transitive deps (#9347)

---
 yarn.lock | 77 +++++++++++++++++++++++++++----------------------------
 1 file changed, 38 insertions(+), 39 deletions(-)

diff --git a/yarn.lock b/yarn.lock
index 5977a591b60a..b55f020b55b3 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1140,20 +1140,21 @@ axe-core@3.3.0:
   resolved "https://registry.yarnpkg.com/axe-core/-/axe-core-3.3.0.tgz#3b32d7e54390d89ff4891b20394d33ad7a192776"
   integrity sha512-54XaTd2VB7A6iBnXMUG2LnBOI7aRbnrVxC5Tz+rVUwYl9MX/cIJc/Ll32YUoFIE/e9UKWMZoQenQu9dFrQyZCg==
 
-axios@0.15.3:
-  version "0.15.3"
-  resolved "https://registry.yarnpkg.com/axios/-/axios-0.15.3.tgz#2c9d638b2e191a08ea1d6cc988eadd6ba5bdc053"
-  integrity sha1-LJ1jiy4ZGgjqHWzJiOrda6W9wFM=
+axios@0.19.0:
+  version "0.19.0"
+  resolved "https://registry.yarnpkg.com/axios/-/axios-0.19.0.tgz#8e09bff3d9122e133f7b8101c8fbdd00ed3d2ab8"
+  integrity sha512-1uvKqKQta3KBxIz14F2v06AEHZ/dIoeKfbTRkK1E5oqjDnuEerLmYTgJB5AiQZHJcljpg1TuRzdjDR06qNk0DQ==
   dependencies:
-    follow-redirects "1.0.0"
+    follow-redirects "1.5.10"
+    is-buffer "^2.0.2"
 
 axios@^0.18.0:
-  version "0.18.0"
-  resolved "https://registry.yarnpkg.com/axios/-/axios-0.18.0.tgz#32d53e4851efdc0a11993b6cd000789d70c05102"
-  integrity sha1-MtU+SFHv3AoRmTts0AB4nXDAUQI=
+  version "0.18.1"
+  resolved "https://registry.yarnpkg.com/axios/-/axios-0.18.1.tgz#ff3f0de2e7b5d180e757ad98000f1081b87bcea3"
+  integrity sha512-0BfJq4NSfQXd+SkFdrvFbG7addhYSBA2mQwISr46pD6E5iqkWg02RAs8vyTT/j0RTnoYmeXauBuSv1qKwR179g==
   dependencies:
-    follow-redirects "^1.3.0"
-    is-buffer "^1.1.5"
+    follow-redirects "1.5.10"
+    is-buffer "^2.0.2"
 
 babel-code-frame@^6.22.0, babel-code-frame@^6.26.0:
   version "6.26.0"
@@ -2468,12 +2469,12 @@ debug@2.6.9, debug@^2.2.0, debug@^2.3.3, debug@^2.6.8:
   dependencies:
     ms "2.0.0"
 
-debug@^3.1.0, debug@^3.2.6:
-  version "3.2.6"
-  resolved "https://registry.yarnpkg.com/debug/-/debug-3.2.6.tgz#e83d17de16d8a7efb7717edbe5fb10135eee629b"
-  integrity sha512-mel+jf7nrtEl5Pn1Qx46zARXKDpBbvzezse7p7LqINmdoIk8PYP5SySaxEmYv6TZ0JyEKA1hsCId6DIhgITtWQ==
+debug@=3.1.0, debug@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-3.1.0.tgz#5bb5a0672628b64149566ba16819e61518c67261"
+  integrity sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==
   dependencies:
-    ms "^2.1.1"
+    ms "2.0.0"
 
 debug@^4.1.0, debug@^4.1.1:
   version "4.1.1"
@@ -3314,19 +3315,12 @@ flat-cache@^1.2.1:
     graceful-fs "^4.1.2"
     write "^0.2.1"
 
-follow-redirects@1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.0.0.tgz#8e34298cbd2e176f254effec75a1c78cc849fd37"
-  integrity sha1-jjQpjL0uF28lTv/sdaHHjMhJ/Tc=
-  dependencies:
-    debug "^2.2.0"
-
-follow-redirects@^1.3.0:
-  version "1.7.0"
-  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.7.0.tgz#489ebc198dc0e7f64167bd23b03c4c19b5784c76"
-  integrity sha512-m/pZQy4Gj287eNy94nivy5wchN3Kp+Q5WgUPNy5lJSZ3sgkVKSYV/ZChMAQVIgx1SqfZ2zBZtPA2YlXIWxxJOQ==
+follow-redirects@1.5.10:
+  version "1.5.10"
+  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.5.10.tgz#7b7a9f9aea2fdff36786a94ff643ed07f4ff5e2a"
+  integrity sha512-0V5l4Cizzvqt5D44aTXbFZz+FtyXV1vrDN6qrelxtfYQKW0KO0W2T/hkE8xvGa/540LkZlkaUjO4ailYTFtHVQ==
   dependencies:
-    debug "^3.2.6"
+    debug "=3.1.0"
 
 for-in@^1.0.2:
   version "1.0.2"
@@ -3509,11 +3503,11 @@ gitconfiglocal@^1.0.0:
     ini "^1.3.2"
 
 github-build@^1.2.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/github-build/-/github-build-1.2.0.tgz#b0bdb705ae4088218577e863c1a301030211051f"
-  integrity sha512-Iq7NialLYz5yRZDkiX8zaOWd+N3BssJJfUvG7wd8r4MeLCN88SdxEYo2esseMLpLtP4vNXhgamg1eRm7hw59qw==
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/github-build/-/github-build-1.2.1.tgz#a00f03fb76e5fa01971ddff0e69b88978c6f2f3f"
+  integrity sha512-VAT4NFU8hm9Ks5yNKuuczD2zMbmouAKHtxtwvmCj34Q2DpZsjgp3LLjtrKlm/YvGSzSNGmj22ccJQQei+f/vIw==
   dependencies:
-    axios "0.15.3"
+    axios "0.19.0"
 
 github-from-package@0.0.0:
   version "0.0.0"
@@ -4043,6 +4037,11 @@ is-buffer@^1.0.2, is-buffer@^1.1.0, is-buffer@^1.1.5:
   resolved "https://registry.yarnpkg.com/is-buffer/-/is-buffer-1.1.6.tgz#efaa2ea9daa0d7ab2ea13a97b2b8ad51fefbe8be"
   integrity sha512-NcdALwpXkTm5Zvvbk7owOUSvVvBKDgKP5/ewfXEznmQFfs4ZRmanOeKBTjRVjka3QFoN6XJ+9F3USqfHqTaU5w==
 
+is-buffer@^2.0.2:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/is-buffer/-/is-buffer-2.0.3.tgz#4ecf3fcf749cbd1e472689e109ac66261a25e725"
+  integrity sha512-U15Q7MXTuZlrbymiz95PJpZxu8IlipAp4dtS3wOdgPXx3mqBnslrWU14kxfHB+Py/+2PVKSr37dMAgM2A4uArw==
+
 is-callable@^1.1.1, is-callable@^1.1.3:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/is-callable/-/is-callable-1.1.3.tgz#86eb75392805ddc33af71c92a0eedf74ee7604b2"
@@ -5093,7 +5092,7 @@ locate-path@^3.0.0:
     p-locate "^3.0.0"
     path-exists "^3.0.0"
 
-lodash._reinterpolate@~3.0.0:
+lodash._reinterpolate@^3.0.0, lodash._reinterpolate@~3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/lodash._reinterpolate/-/lodash._reinterpolate-3.0.0.tgz#0ccf2d89166af03b3663c796538b75ac6e114d9d"
   integrity sha1-DM8tiRZq8Ds2Y8eWU4t1rG4RTZ0=
@@ -5149,11 +5148,11 @@ lodash.sortby@^4.7.0:
   integrity sha1-7dFMgk4sycHgsKG0K7UhBRakJDg=
 
 lodash.template@^4.0.2:
-  version "4.4.0"
-  resolved "https://registry.yarnpkg.com/lodash.template/-/lodash.template-4.4.0.tgz#e73a0385c8355591746e020b99679c690e68fba0"
-  integrity sha1-5zoDhcg1VZF0bgILmWecaQ5o+6A=
+  version "4.5.0"
+  resolved "https://registry.yarnpkg.com/lodash.template/-/lodash.template-4.5.0.tgz#f976195cf3f347d0d5f52483569fe8031ccce8ab"
+  integrity sha512-84vYFxIkmidUiFxidA/KjjH9pAycqW+h980j7Fuz5qxRtO9pgB7MDFTdys1N7A5mcucRiDyEq4fusljItR1T/A==
   dependencies:
-    lodash._reinterpolate "~3.0.0"
+    lodash._reinterpolate "^3.0.0"
     lodash.templatesettings "^4.0.0"
 
 lodash.templatesettings@^4.0.0:
@@ -5174,9 +5173,9 @@ lodash.union@^4.6.0:
   integrity sha1-SLtQiECfFvGCFmZkHETdGqrjzYg=
 
 lodash@^4.0.0, lodash@^4.1.0, lodash@^4.13.1, lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.3, lodash@^4.17.4, lodash@^4.2.1, lodash@^4.3.0:
-  version "4.17.11"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.11.tgz#b39ea6229ef607ecd89e2c8df12536891cac9b8d"
-  integrity sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==
+  version "4.17.14"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.14.tgz#9ce487ae66c96254fe20b599f21b6816028078ba"
+  integrity sha512-mmKYbW3GLuJeX+iGP+Y7Gp1AiGHGbXHCOh/jZmrawMmsE7MS4znI3RL2FsjbqOyMayHInjOeykW7PEajUk1/xw==
 
 log-driver@^1.2.7:
   version "1.2.7"

From a36d26300b75dd262cf6d1ea42f91259ec0ef473 Mon Sep 17 00:00:00 2001
From: Connor Clark <cjamcl@google.com>
Date: Wed, 10 Jul 2019 19:20:52 -0700
Subject: [PATCH 083/110] =?UTF-8?q?tests(tags-blocking-first-paint):=20alt?=
 =?UTF-8?q?ernate=20stylesheets=20are=20not=E2=80=A6=20(#9248)?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../test/fixtures/dobetterweb/dbw_tester.html |  3 +
 .../test/fixtures/dobetterweb/empty.css       |  0
 .../dobetterweb/dbw-expectations.js           | 83 ++++++++++++++++++-
 3 files changed, 83 insertions(+), 3 deletions(-)
 create mode 100644 lighthouse-cli/test/fixtures/dobetterweb/empty.css

diff --git a/lighthouse-cli/test/fixtures/dobetterweb/dbw_tester.html b/lighthouse-cli/test/fixtures/dobetterweb/dbw_tester.html
index f01647c4172d..ab1808632a59 100644
--- a/lighthouse-cli/test/fixtures/dobetterweb/dbw_tester.html
+++ b/lighthouse-cli/test/fixtures/dobetterweb/dbw_tester.html
@@ -44,6 +44,9 @@
 <!-- PASS: async stylesheet -->
 <link rel="stylesheet" href="./dbw_tester.css?delay=3000&async=true" disabled onload="this.disabled = false">
 
+<!-- Alternate stylesheets should not show in TagsBlockingFirstPaint artifact -->
+<link rel="alternate stylesheet" href="./empty.css">
+
 <!-- FAIL: block rendering -->
 <script src="./dbw_tester.js"></script>
 
diff --git a/lighthouse-cli/test/fixtures/dobetterweb/empty.css b/lighthouse-cli/test/fixtures/dobetterweb/empty.css
new file mode 100644
index 000000000000..e69de29bb2d1
diff --git a/lighthouse-cli/test/smokehouse/dobetterweb/dbw-expectations.js b/lighthouse-cli/test/smokehouse/dobetterweb/dbw-expectations.js
index ef5ad5c02fc2..2a2597af72c7 100644
--- a/lighthouse-cli/test/smokehouse/dobetterweb/dbw-expectations.js
+++ b/lighthouse-cli/test/smokehouse/dobetterweb/dbw-expectations.js
@@ -16,6 +16,63 @@ module.exports = [
       }, {
         id: 'wordpress',
       }],
+      TagsBlockingFirstPaint: [
+        {
+          tag: {
+            tagName: 'LINK',
+            url: 'http://localhost:10200/dobetterweb/dobetterweb/dbw_tester.css?delay=100',
+          },
+        },
+        {
+          tag: {
+            tagName: 'LINK',
+            url: 'http://localhost:10200/dobetterweb/unknown404.css?delay=200',
+          },
+        },
+        {
+          tag: {
+            tagName: 'LINK',
+            url: 'http://localhost:10200/dobetterweb/dbw_tester.css?delay=2200',
+          },
+
+        },
+        {
+          tag: {
+            tagName: 'LINK',
+            url: 'http://localhost:10200/dobetterweb/dbw_partial_a.html?delay=200',
+          },
+        },
+        {
+          tag: {
+            tagName: 'LINK',
+            url: 'http://localhost:10200/dobetterweb/dbw_tester.css?delay=3000&capped',
+            mediaChanges: [
+              {
+                href: 'http://localhost:10200/dobetterweb/dbw_tester.css?delay=3000&capped',
+                media: 'not-matching',
+                matches: false,
+              },
+              {
+                href: 'http://localhost:10200/dobetterweb/dbw_tester.css?delay=3000&capped',
+                media: 'screen',
+                matches: true,
+              },
+            ],
+          },
+        },
+        {
+          tag: {
+            tagName: 'SCRIPT',
+            url: 'http://localhost:10200/dobetterweb/dbw_tester.js',
+          },
+        },
+        {
+          tag: {
+            tagName: 'SCRIPT',
+            url: 'http://localhost:10200/dobetterweb/fcp-delayer.js?delay=5000',
+          },
+        },
+      ],
     },
     lhr: {
       requestedUrl: 'http://localhost:10200/dobetterweb/dbw_tester.html',
@@ -84,9 +141,29 @@ module.exports = [
           score: '<1',
           numericValue: '>100',
           details: {
-            items: {
-              length: 7,
-            },
+            items: [
+              {
+                url: 'http://localhost:10200/dobetterweb/dobetterweb/dbw_tester.css?delay=100',
+              },
+              {
+                url: 'http://localhost:10200/dobetterweb/unknown404.css?delay=200',
+              },
+              {
+                url: 'http://localhost:10200/dobetterweb/dbw_tester.css?delay=2200',
+              },
+              {
+                url: 'http://localhost:10200/dobetterweb/dbw_partial_a.html?delay=200',
+              },
+              {
+                url: 'http://localhost:10200/dobetterweb/dbw_tester.css?delay=3000&capped',
+              },
+              {
+                url: 'http://localhost:10200/dobetterweb/dbw_tester.js',
+              },
+              {
+                url: 'http://localhost:10200/dobetterweb/fcp-delayer.js?delay=5000',
+              },
+            ],
           },
         },
         'uses-passive-event-listeners': {

From 3fb2c6d7fba2c9139d385858a6a58a369072051a Mon Sep 17 00:00:00 2001
From: Connor Clark <cjamcl@google.com>
Date: Thu, 11 Jul 2019 15:59:45 -0700
Subject: [PATCH 084/110] clients(devtools): audits2->audits and defer reading
 resources (#9344)

---
 clients/devtools-report-assets.js           | 20 ++++++++++++++++----
 lighthouse-core/scripts/roll-to-devtools.sh |  8 +++++---
 2 files changed, 21 insertions(+), 7 deletions(-)

diff --git a/clients/devtools-report-assets.js b/clients/devtools-report-assets.js
index 58b80f645f2b..a7ff67f7ada0 100644
--- a/clients/devtools-report-assets.js
+++ b/clients/devtools-report-assets.js
@@ -16,9 +16,21 @@
 // @ts-ignore: Runtime exists in Devtools.
 const cachedResources = Runtime.cachedResources;
 
+// Getters are necessary because the DevTools bundling processes
+// resources after this module is resolved. These properties are not
+// read from immediately, so we can defer reading with getters and everything
+// is going to be OK.
 module.exports = {
-  REPORT_CSS: cachedResources['audits/lighthouse/report.css'],
-  REPORT_JAVASCRIPT: cachedResources['audits/lighthouse/report.js'],
-  REPORT_TEMPLATE: cachedResources['audits/lighthouse/template.html'],
-  REPORT_TEMPLATES: cachedResources['audits/lighthouse/templates.html'],
+  get REPORT_CSS() {
+    return cachedResources['audits/lighthouse/report.css'];
+  },
+  get REPORT_JAVASCRIPT() {
+    return cachedResources['audits/lighthouse/report.js'];
+  },
+  get REPORT_TEMPLATE() {
+    return cachedResources['audits/lighthouse/template.html'];
+  },
+  get REPORT_TEMPLATES() {
+    return cachedResources['audits/lighthouse/templates.html'];
+  },
 };
diff --git a/lighthouse-core/scripts/roll-to-devtools.sh b/lighthouse-core/scripts/roll-to-devtools.sh
index 5959fd902182..826c3cefdb57 100755
--- a/lighthouse-core/scripts/roll-to-devtools.sh
+++ b/lighthouse-core/scripts/roll-to-devtools.sh
@@ -21,7 +21,7 @@ else
   frontend_dir="$chromium_dir/third_party/blink/renderer/devtools/front_end"
 fi
 
-tests_dir="$frontend_dir/../../../web_tests/http/tests/devtools/audits2"
+tests_dir="$frontend_dir/../../../web_tests/http/tests/devtools/audits"
 
 if [[ ! -d "$frontend_dir" || ! -a "$frontend_dir/Runtime.js" ]]; then
   echo -e "\033[31m✖ Error!\033[39m"
@@ -43,10 +43,12 @@ cp -pPR "$lh_bg_js" "$lh_worker_dir/lighthouse-dt-bundle.js"
 echo -e "\033[96m ✓\033[39m (Potentially stale) lighthouse-dt-bundle copied."
 
 # copy report generator + cached resources into $fe_lh_dir
-cp -r dist/dt-report-resources/ $fe_lh_dir
+# use dir/* format to copy over all files in dt-report-resources directly to $fe_lh_dir 
+# dir/ format behavior changes based on if their exists a folder named dir, which can get weird
+cp -r dist/dt-report-resources/* $fe_lh_dir
 
 # update expected version string in tests
 VERSION=$(node -e "console.log(require('./package.json').version)")
 sed -i '' -e "s/Version:.*/Version: $VERSION/g" "$tests_dir"/*-expected.txt
 
-echo "Done. To rebase the test expectations, run: yarn --cwd ~/chromium/src/third_party/blink/renderer/devtools test 'http/tests/devtools/audits2/*' --reset-results"
+echo "Done. To rebase the test expectations, run: yarn --cwd ~/chromium/src/third_party/blink/renderer/devtools test 'http/tests/devtools/audits/*' --reset-results"

From 43b96d40f4ecb6109cad1b92a9bd6dc9298fbf05 Mon Sep 17 00:00:00 2001
From: Brendan Kenny <bckenny@gmail.com>
Date: Fri, 12 Jul 2019 15:10:01 -0700
Subject: [PATCH 085/110] deps: update to typescript 3.5.3 (#9357)

---
 lighthouse-core/computed/network-analysis.js              | 2 +-
 lighthouse-core/config/config.js                          | 8 +++-----
 lighthouse-core/gather/gather-runner.js                   | 6 +++---
 lighthouse-core/lib/lantern-trace-saver.js                | 2 +-
 .../report/html/renderer/report-ui-features.js            | 2 +-
 lighthouse-core/runner.js                                 | 4 +++-
 lighthouse-core/scripts/update-report-fixtures.js         | 4 +++-
 lighthouse-viewer/app/src/lighthouse-report-viewer.js     | 1 +
 package.json                                              | 2 +-
 types/externs.d.ts                                        | 2 +-
 yarn.lock                                                 | 8 ++++----
 11 files changed, 22 insertions(+), 19 deletions(-)

diff --git a/lighthouse-core/computed/network-analysis.js b/lighthouse-core/computed/network-analysis.js
index ced6c37542d3..d023228fa0a6 100644
--- a/lighthouse-core/computed/network-analysis.js
+++ b/lighthouse-core/computed/network-analysis.js
@@ -12,7 +12,7 @@ const NetworkRecords = require('./network-records.js');
 class NetworkAnalysis {
   /**
    * @param {Array<LH.Artifacts.NetworkRequest>} records
-   * @return {Omit<LH.Artifacts.NetworkAnalysis, 'throughput'>}
+   * @return {StrictOmit<LH.Artifacts.NetworkAnalysis, 'throughput'>}
    */
   static computeRTTAndServerResponseTime(records) {
     // First pass compute the estimated observed RTT to each origin's servers.
diff --git a/lighthouse-core/config/config.js b/lighthouse-core/config/config.js
index f506b5f5c30d..0639aed0c17e 100644
--- a/lighthouse-core/config/config.js
+++ b/lighthouse-core/config/config.js
@@ -182,11 +182,9 @@ function cleanFlagsForSettings(flags = {}) {
   const settings = {};
 
   for (const key of Object.keys(flags)) {
-    // @ts-ignore - intentionally testing some keys not on defaultSettings to discard them.
-    if (typeof constants.defaultSettings[key] !== 'undefined') {
-      // Cast since key now must be able to index both Flags and Settings.
-      const safekey = /** @type {Extract<keyof LH.Flags, keyof LH.Config.Settings>} */ (key);
-      settings[safekey] = flags[safekey];
+    if (key in constants.defaultSettings) {
+      // @ts-ignore tsc can't yet express that key is only a single type in each iteration, not a union of types.
+      settings[key] = flags[key];
     }
   }
 
diff --git a/lighthouse-core/gather/gather-runner.js b/lighthouse-core/gather/gather-runner.js
index 78b910a85600..71b13a002513 100644
--- a/lighthouse-core/gather/gather-runner.js
+++ b/lighthouse-core/gather/gather-runner.js
@@ -425,11 +425,11 @@ class GatherRunner {
     for (const [gathererName, phaseResultsPromises] of resultsEntries) {
       try {
         const phaseResults = await Promise.all(phaseResultsPromises);
-        // Take last defined pass result as artifact.
+        // Take the last defined pass result as artifact. If none are defined, the undefined check below handles it.
         const definedResults = phaseResults.filter(element => element !== undefined);
         const artifact = definedResults[definedResults.length - 1];
-        // Typecast pretends artifact always provided here, but checked below for top-level `throw`.
-        gathererArtifacts[gathererName] = /** @type {NonVoid<PhaseResult>} */ (artifact);
+        // @ts-ignore tsc can't yet express that gathererName is only a single type in each iteration, not a union of types.
+        gathererArtifacts[gathererName] = artifact;
       } catch (err) {
         // Return error to runner to handle turning it into an error audit.
         gathererArtifacts[gathererName] = err;
diff --git a/lighthouse-core/lib/lantern-trace-saver.js b/lighthouse-core/lib/lantern-trace-saver.js
index efcb8ecff97b..271b2f0284c5 100644
--- a/lighthouse-core/lib/lantern-trace-saver.js
+++ b/lighthouse-core/lib/lantern-trace-saver.js
@@ -133,7 +133,7 @@ function convertNodeTimingsToTrace(nodeTimings) {
     if (startTime === endTime) endTime += 0.3;
 
     const requestData = {requestId: requestId.toString(), frame};
-    /** @type {Omit<LH.TraceEvent, 'name'|'ts'|'args'>} */
+    /** @type {StrictOmit<LH.TraceEvent, 'name'|'ts'|'args'>} */
     const baseRequestEvent = {...baseEvent, ph: 'I', s: 't', dur: 0};
 
     const sendRequestData = {
diff --git a/lighthouse-core/report/html/renderer/report-ui-features.js b/lighthouse-core/report/html/renderer/report-ui-features.js
index 3ad38e014e13..41be88539fb3 100644
--- a/lighthouse-core/report/html/renderer/report-ui-features.js
+++ b/lighthouse-core/report/html/renderer/report-ui-features.js
@@ -329,7 +329,7 @@ class ReportUIFeatures {
    */
   onCopy(e) {
     // Only handle copy button presses (e.g. ignore the user copying page text).
-    if (this._copyAttempt) {
+    if (this._copyAttempt && e.clipboardData) {
       // We want to write our own data to the clipboard, not the user's text selection.
       e.preventDefault();
       e.clipboardData.setData('text/plain', JSON.stringify(this.json, null, 2));
diff --git a/lighthouse-core/runner.js b/lighthouse-core/runner.js
index 029f89807a46..15d242580425 100644
--- a/lighthouse-core/runner.js
+++ b/lighthouse-core/runner.js
@@ -333,7 +333,9 @@ class Runner {
       // to prevent consumers from unnecessary type assertions.
       const requiredArtifacts = audit.meta.requiredArtifacts
         .reduce((requiredArtifacts, artifactName) => {
-          requiredArtifacts[artifactName] = artifacts[artifactName];
+          const requiredArtifact = artifacts[artifactName];
+          // @ts-ignore tsc can't yet express that artifactName is only a single type in each iteration, not a union of types.
+          requiredArtifacts[artifactName] = requiredArtifact;
           return requiredArtifacts;
         }, /** @type {LH.Artifacts} */ ({}));
       const product = await audit.audit(requiredArtifacts, auditContext);
diff --git a/lighthouse-core/scripts/update-report-fixtures.js b/lighthouse-core/scripts/update-report-fixtures.js
index 5f157878301f..a5ed4c93a5a8 100644
--- a/lighthouse-core/scripts/update-report-fixtures.js
+++ b/lighthouse-core/scripts/update-report-fixtures.js
@@ -46,7 +46,9 @@ async function update(artifactName) {
       throw Error('Unknown artifact name: ' + artifactName);
     }
     const finalArtifacts = oldArtifacts;
-    finalArtifacts[artifactName] = newArtifacts[artifactName];
+    const newArtifact = newArtifacts[artifactName];
+    // @ts-ignore tsc can't yet express that artifactName is only a single type in each iteration, not a union of types.
+    finalArtifacts[artifactName] = newArtifact;
     await assetSaver.saveArtifacts(finalArtifacts, artifactPath);
   }
 }
diff --git a/lighthouse-viewer/app/src/lighthouse-report-viewer.js b/lighthouse-viewer/app/src/lighthouse-report-viewer.js
index a69796e85f7c..0570268aa566 100644
--- a/lighthouse-viewer/app/src/lighthouse-report-viewer.js
+++ b/lighthouse-viewer/app/src/lighthouse-report-viewer.js
@@ -276,6 +276,7 @@ class LighthouseReportViewer {
    * @private
    */
   _onPaste(e) {
+    if (!e.clipboardData) return;
     e.preventDefault();
 
     // Try paste as gist URL.
diff --git a/package.json b/package.json
index 812c02607df1..7d2f2a6480b7 100644
--- a/package.json
+++ b/package.json
@@ -130,7 +130,7 @@
     "prettier": "^1.14.3",
     "pretty-json-stringify": "^0.0.2",
     "puppeteer": "^1.10.0",
-    "typescript": "3.2.2",
+    "typescript": "3.5.3",
     "uglify-es": "3.0.15",
     "url-search-params": "0.6.1",
     "whatwg-fetch": "2.0.1",
diff --git a/types/externs.d.ts b/types/externs.d.ts
index 008e88d583f2..6204567a83a7 100644
--- a/types/externs.d.ts
+++ b/types/externs.d.ts
@@ -39,7 +39,7 @@ declare global {
   type NonVoid<T> = T extends void ? never : T;
 
   /** Remove properties K from T. */
-  type Omit<T, K extends keyof T> = Pick<T, Exclude<keyof T, K>>;
+  type StrictOmit<T, K extends keyof T> = Pick<T, Exclude<keyof T, K>>;
 
   /** Obtain the type of the first parameter of a function. */
   type FirstParamType<T extends (arg1: any, ...args: any[]) => any> =
diff --git a/yarn.lock b/yarn.lock
index b55f020b55b3..a97ff5a07ce7 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7585,10 +7585,10 @@ typedarray@^0.0.6:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
-typescript@3.2.2:
-  version "3.2.2"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.2.2.tgz#fe8101c46aa123f8353523ebdcf5730c2ae493e5"
-  integrity sha512-VCj5UiSyHBjwfYacmDuc/NOk4QQixbE+Wn7MFJuS0nRuPQbof132Pw4u53dm264O8LPc2MVsc7RJNml5szurkg==
+typescript@3.5.3:
+  version "3.5.3"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.5.3.tgz#c830f657f93f1ea846819e929092f5fe5983e977"
+  integrity sha512-ACzBtm/PhXBDId6a6sDJfroT2pOWt/oOnk4/dElG5G33ZL776N3Y6/6bKZJBFpd+b05F3Ct9qDjMeJmRWtE2/g==
 
 uglify-es@3.0.15:
   version "3.0.15"

From b925dbd303c1fc4bbf5ce10151bd9009b011e17b Mon Sep 17 00:00:00 2001
From: Brendan Kenny <bckenny@gmail.com>
Date: Fri, 12 Jul 2019 17:33:01 -0700
Subject: [PATCH 086/110] tests: run CI with a frozen yarn.lock (#9362)

---
 .travis.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index e8ec33ea7511..a1aa6fe7c8d4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -20,7 +20,7 @@ install:
   # with the latest puppeteer api so we probably need to run on chromimum
   # @see https://github.com/GoogleChrome/lighthouse/pull/4640/files#r171425004
   - export PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=1
-  - yarn
+  - yarn --frozen-lockfile
 before_script:
   - export DISPLAY=:99.0
   # see comment above about puppeteer

From f9d1b2567905bf545d8cd6ceaee0a0cc96c66a2b Mon Sep 17 00:00:00 2001
From: Paul Irish <paulirish@google.com>
Date: Mon, 15 Jul 2019 08:30:55 -0700
Subject: [PATCH 087/110] docs: add i18n overview & authoring documentation
 (#9361)

Co-Authored-By: Shane Exterkamp
---
 lighthouse-core/lib/i18n/README.md | 283 +++++++++++++++++++++++++++++
 1 file changed, 283 insertions(+)
 create mode 100644 lighthouse-core/lib/i18n/README.md

diff --git a/lighthouse-core/lib/i18n/README.md b/lighthouse-core/lib/i18n/README.md
new file mode 100644
index 000000000000..c7ed6e91c458
--- /dev/null
+++ b/lighthouse-core/lib/i18n/README.md
@@ -0,0 +1,283 @@
+# Terminology
+
+* **CTC format**: The [Chrome extension & Chrome app i18n format](https://developer.chrome.com/extensions/i18n-messages). JSON with their specified model for declaring placeholders, examples, etc. Used as an interchange data format.
+* **LHL syntax** (Lighthouse Localizable syntax): The ICU-friendly string syntax that is used to author `UIStrings` and is seen in the locale files in `i18n/locales/*.json`. Lighthouse has a custom syntax these strings combines many ICU message features along with some markdown.
+* **ICU**: ICU (International Components for Unicode) is a localization project and standard defined by the Unicode consortium. In general, we refer to "ICU" as the [ICU message formatting](http://userguide.icu-project.org/formatparse/messages) syntax.
+
+# The Lighthouse i18n pipeline
+
+The translation pipeline has 3 distinct stages, the Collection done at build time, the Translation done in the Google TC pipeline, and the Replacement done at runtime.
+
+The collection and translation pipeline:
+```
+ Source files:                                         Locale files:
++---------------------------+                         +----------------------------------------------
+|                           ++                        | lighthouse-core/lib/i18n/locales/en-US.json |
+| const UIStrings = { ... };|-+                 +---> | lighthouse-core/lib/i18n/locales/en-XL.json |
+|                           |-|                 |     +----------------------------------------------+
++-----------------------------|                 |     |                                             ||
+ +----------------------------|                 |     | lighthouse-core/lib/i18n/locales/*.json     |-<+
+  +---------------------------+                 |     |                                             || |
+                           |                    |     +----------------------------------------------| |
+                           |                    |      +---------------------------------------------+ |
+              $ yarn i18n  +--------------------+                                                      |
+                           |                                                                           |
+                           v                          ▐                       ▐    +---------------+   |
+              +------------+------+                   ▐   Google TC Pipeline  ▐ +->|  *.ctc.json   |---+
+              |  en-US.ctc.json   |  +--------------> ▐      (~2 weeks)       ▐    +---------------+
+              +-------------------+  $ g3/import….sh  ▐                       ▐ $ g3/export….sh
+```
+
+#### String Collection workflow (build time)
+
+To a typical developer, the pipeline looks like this:
+
+* LH contributor makes any changes to strings.
+
+```shell
+# collect UIStrings and bake the en-US & en-XL locales
+$ yarn i18n
+
+# Test to see that the new translations are valid and apply to all strings
+$ node lighthouse-core/scripts/build-report-for-autodeployment.js && open dist/xl-accented/index.html
+```
+
+Note: Why do `en-US` and `en-XL` get baked early?  We write all our strings in `en-US` by default, so they do not need to be translated, so it can be immediately baked without going to the translators.  Similarly, `en-XL` is a debugging language, it is an automated version of `en-US` that simply adds markers to `en` strings in order to make it obvious that something has or hasn't been translated.  So neither of these files need to go to translators to be used, and both can be used at develop-time to help developer i18n workflow.
+
+#### String Translation in Google Translation Console
+
+* Googler is ready to kick off the TC pipeline again.
+
+```shell
+# collect UIStrings (to make sure everything is up to date)
+$ yarn i18n
+
+# Extract the CTC format files to translation console
+$ sh import-source-from-github.sh
+
+# Submit CL. Wait ~2 weeks for translations
+
+# Import the translated CTC format files to locales/ and bake them
+$ sh export-tc-dump-to-github.sh
+```
+
+#### String Replacement (runtime)
+
+See [Appendix A: How runtime string replacement works](#appendix)
+
+
+
+# Writing UIStrings with LHL
+
+❗TODO(exterkamp): explain all the comments and where they go/what they become.
+
+❗TODO(exterkamp): explain why we can't use some ICU like number formatting.
+
+We want to keep strings close to the code in which they are used so that developers can easily understand their context. We use `i18n.js` to extract the `UIStrings` strings from individual js files.
+
+LHL strings in each module are defined in a `UIStrings` object with the strings as its properties. JSDoc is sometimes used to provide additional information about each string.
+
+The LHL syntax is based primarily around the standardized [ICU message formatting](http://userguide.icu-project.org/formatparse/messages) syntax.
+
+
+### Basic example
+
+A simple string.
+
+```javascript
+const UIStrings = {
+  /** Imperative title of a Lighthouse audit that ... */
+  title: 'Minify CSS',
+};
+```
+
+For proper translation, **all** strings must be accompanied by a description, written as a preceeding comment.
+
+
+### Replacements and primitive formatting
+
+Replacements (aka substitutions) include string replacements like `{some_name}` and number formatting like `{timeInMs, number, milliseconds}`.
+
+#### Direct ICU replacement
+
+`{some_name}` is called _Direct ICU_ since the replacement is a direct substitution of ICU with a variable and uses no custom formatting. This is simply a direct replacement of text into a string. Often used for proper nouns, code, or other text that is dynamic and added at runtime.
+
+ICU replacements must use a JSDoc-like syntax to specify an example for direct ICU replacements:
+
+*   To specify the description, use `@description …`:
+    * `@description Label string used to…`
+*   To specify an example for an ICU replacement, use `@example {…} …`:
+    * `@example {variableName} This is an example ICU replacement`
+
+```javascript
+const UIStrings = {
+    /**
+      * @description Error message explaining ...
+      * @example {errorCode} NO_SPEEDLINE_FRAMES
+      */
+    didntCollectScreenshots: `Chrome didn't .... ({errorCode})`,
+};
+```
+
+#### Complex ICU replacement
+
+`{timeInMs, number, milliseconds}` is called _Complex ICU_ since the replacement is for numbers and other complex replacements that use the custom formatters in Lighthouse. The supported complex ICU formats are: `milliseconds`, `seconds`, `bytes`, `percent`, and `extendedPercent`.
+
+These complex ICU formats are automatically given @example values during `yarn i18n`.  Therefore, a normal description string can be used:
+
+```javascript
+const UIStrings = {
+    /** Description of display value. */
+    displayValueText: 'Interactive at {timeInMs, number, seconds} s',
+};
+```
+
+### Ordinals (Numeric Selects), Plurals
+
+An ordinal ICU message is used when the message contains "plurals", wherein a sub-message would need to be selected from a list of messages depending on the value of `itemCount` (in this example).  They are a flavor of "Selects" that have a unique syntax.
+
+```javascript
+displayValue: `{itemCount, plural,
+  =1 {1 link found}
+  other {# links found}
+  }`,
+```
+
+### Selects
+
+A select ICU message is used when the message should select a sub-message based on the value of a variable `pronoun` in this case. This is often used for gender based selections, but can be used for any enum.  Lighthouse does not use selects very often.
+
+```javascript
+displayValue: `{pronoun, select,
+  male {He programmed the link.}
+  female {She programmed the link.}
+  other {They programmed the link.}
+  }`,
+```
+
+
+### Markdown
+
+Some strings, like audit descriptions, can also contain a subset of markdown. See [`audit.d.ts`](https://github.com/GoogleChrome/lighthouse/blob/5e52dcca72b35943d14cc7c27613517c425250b9/types/audit.d.ts) for which properties support markdown rendering and will be rendered in the report.
+
+**Inline code blocks**
+
+To format some text as code it should be contained in `backticks`. Any text within the backticks will not be translated. This should be used whenever code is non-translatable. Such as HTML tags or snippets of code. Also note that there is no escape character for using backticks as part of the string, so ONLY use backticks to define code blocks.
+
+```javascript
+const UIStrings = {
+  title: 'Document has a `<title>` element',
+};
+```
+
+**Links**
+
+To convert a section of text into a link to another URL, enclose the text itself in [brackets] and then immediately include a link after it in (parentheses). Note that `[link text] (https://...)` is NOT VALID because of the space and will not be converted to a link.
+
+```javascript
+const UIStrings = {
+  description: 'The value of ... [Learn More](https://google.com/)',
+};
+```
+
+
+### Why do we call it LHL?
+
+LHL is a name that is distinct and identifies this as the LightHouse Locale format. Since both LHL and CTC use `.json` files it is ambiguous, so LHL is the given name for the string format that `UIStrings` objects and `locale/*.json` files that are consumed by the Lighthouse i18n engine.
+
+# CTC file format (CTC)
+
+### Why do we use CTC as our i18n messages interchange format?
+
+There are a few data formats used for holding messages for internationalization, including XMB and XLIFF.  We needed a JS-friendly format supported by Google's Translation Console (TC). This format is [somewhat well-specified](https://developer.chrome.com/extensions/i18n-messages) and defined in JSON rather than XML. ;)
+
+### Why do we call it CTC?
+
+CTC is a name that is distinct and identifies this as the Chrome translation format.  `messages.json` is ambiguous in our opinion and so throughout the docs we will refer to files that follow the `messages.json` format as being CTC files with a `.ctc.json` suffix.
+
+### Parts of a CTC message
+
+(From the Chrome Docs)
+
+```json
+{
+  "name": {
+    "message": "Message text, with optional placeholders.",
+    "description": "Translator-aimed description of the message.",
+    "placeholders": {
+      "placeholder_name": {
+        "content": "A string to be placed within the message.",
+        "example": "Translator-aimed example of the placeholder string."
+      },
+    }
+  }
+}
+```
+
+# Appendix
+
+##  Appendix A: How runtime string replacement works
+
+1.  String called in `.js` file, converted to i18n id.
+
+2.  i18n id in lookup table along with backup message.
+
+3.  Message is looked up via `replaceIcuMessageInstanceIds` &
+    `getFormatted`.
+
+##### Example:
+
+1.  string in `file_with_UIStrings.js`
+
+    ```javascript
+    // Declare UIStrings
+    const UIStrings = {
+      /** Description of a Lighthouse audit that tells the user ...*/
+      message: 'Minifying CSS files can reduce network payload sizes. ' +
+        '[Learn more](https://developers.google.com/web/tools/lighthouse/audits/minify-css).',
+    };
+
+    // Init the strings in this file with the i18n system.
+    const str_ = i18n.createMessageInstanceIdFn(__filename, UIStrings);
+
+    // String called with i18n
+    // Will become id like "lighthouse-core/audits/byte-efficiency/unminified-css.js | message"
+    let message = str_(UIStrings.message);
+    ```
+
+2.  i18n lookup map registered the string (i18n.js)
+
+    ```javascript
+    const _icuMessageInstanceMap = new Map();
+
+    // example value in _icuMessageInstanceMap
+    'lighthouse-core/audits/byte-efficiency/unminified-css.js | message': {
+      icuMessageId: 'lighthouse-core/audits/byte-efficiency/unminified-css.js | message'
+      icuMessage: 'Minifying CSS files can reduce network payload sizes. ' +
+        '[Learn more](https://developers.google.com/web/tools/lighthouse/audits/minify-css).'
+    }
+    ```
+
+3.  Lookup in `i18n.js`. `replaceIcuMessageInstanceIds` and `getFormatted` will attempt to lookup in this order:
+
+    1.  `locales/{locale}.json` The best result, the string is found in the target locale, and should appear correct.
+
+    2.  `locales/en.json` _Okay_ result. The string was not found in the target locale, but was in `en`, so show the English string.
+
+    3.  The fallback message passed to `_formatIcuMessage`. This lookup is subtley different than the en lookup. A string that is provided in the UIStrings, but not en may be part of a swap-locale that is using an old deprecated string, so would need to be populated by UIString replacement here instead.
+
+    4.  Throw `_ICUMsgNotFoundMsg` Error. This is preferrable to showing the user some id control lookup like "lighthouse-core/audits/byte-efficiency/unminified-css.js | description"
+
+    This is also the point at which ICU is replaced by values. So this...
+
+    ```javascript
+    message = "Total size was {totalBytes, number, bytes} KB"
+    sent_values = {totalBytes: 10240}
+    ```
+
+    Becomes...
+
+    ```javascript
+    message = "Total size was 10 KB"
+    ```
+

From 78a1a8f8b9a8473957ce3cd491fad92936374e5c Mon Sep 17 00:00:00 2001
From: James George <jamesgeorge998001@gmail.com>
Date: Tue, 16 Jul 2019 00:10:48 +0530
Subject: [PATCH 088/110] deps: update to open from opn (#9267)

---
 docs/readme.md        |  2 +-
 lighthouse-cli/run.js |  4 ++--
 package.json          |  3 +--
 yarn.lock             | 18 +++++-------------
 4 files changed, 9 insertions(+), 18 deletions(-)

diff --git a/docs/readme.md b/docs/readme.md
index 0cd05d05771a..a397dbd5a452 100644
--- a/docs/readme.md
+++ b/docs/readme.md
@@ -58,7 +58,7 @@ Note that some flag functionality is only available to the CLI. The set of share
 | `chromeFlags` | Ignored, Chrome is not launched for you. |
 | `outputPath` | Ignored, output is returned as string in `.report` property. |
 | `saveAssets` | Ignored, artifacts are returned in `.artifacts` property. |
-| `view` | Ignored, use the `opn` npm module if you want this functionality. |
+| `view` | Ignored, use the `open` npm module if you want this functionality. |
 | `enableErrorReporting` | Ignored, error reporting is always disabled for node. |
 | `listAllAudits` | Ignored, not relevant in programmatic use. |
 | `listTraceCategories` | Ignored, not relevant in programmatic use. |
diff --git a/lighthouse-cli/run.js b/lighthouse-cli/run.js
index cc8c717f1995..8574e2342743 100644
--- a/lighthouse-cli/run.js
+++ b/lighthouse-cli/run.js
@@ -18,7 +18,7 @@ const log = require('lighthouse-logger');
 const getFilenamePrefix = require('../lighthouse-core/lib/file-namer.js').getFilenamePrefix;
 const assetSaver = require('../lighthouse-core/lib/asset-saver.js');
 
-const opn = require('opn');
+const open = require('open');
 
 /** @typedef {import('../lighthouse-core/lib/lh-error.js')} LighthouseError */
 
@@ -138,7 +138,7 @@ async function saveResults(runnerResult, flags) {
 
     if (outputType === Printer.OutputMode[Printer.OutputMode.html]) {
       if (flags.view) {
-        opn(outputPath, {wait: false});
+        open(outputPath, {wait: false});
       } else {
         // eslint-disable-next-line max-len
         log.log('CLI', 'Protip: Run lighthouse with `--view` to immediately open the HTML report in your browser');
diff --git a/package.json b/package.json
index 7d2f2a6480b7..29ba66c48be0 100644
--- a/package.json
+++ b/package.json
@@ -88,7 +88,6 @@
     "@types/make-dir": "^1.0.3",
     "@types/mkdirp": "^0.5.2",
     "@types/node": "*",
-    "@types/opn": "^3.0.28",
     "@types/raven": "^2.5.1",
     "@types/resize-observer-browser": "^0.1.1",
     "@types/rimraf": "^2.0.2",
@@ -157,7 +156,7 @@
     "lookup-closest-locale": "6.0.4",
     "metaviewport-parser": "0.2.0",
     "mkdirp": "0.5.1",
-    "opn": "4.0.2",
+    "open": "^6.4.0",
     "parse-cache-control": "1.0.1",
     "raven": "^2.2.1",
     "rimraf": "^2.6.1",
diff --git a/yarn.lock b/yarn.lock
index a97ff5a07ce7..5350a9a34b11 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -577,13 +577,6 @@
   resolved "https://registry.yarnpkg.com/@types/node/-/node-10.14.0.tgz#1c297530428c6f4e0a0a3222f5b44745669aa9f7"
   integrity sha512-1UhSMMDix7bVdUeqtZERQQyJr3QuFoN5X5APtpIooGkumE3crPaeq7UgFeJNjGD8yCQ8od8PzRkgptR5+x327Q==
 
-"@types/opn@^3.0.28":
-  version "3.0.28"
-  resolved "https://registry.yarnpkg.com/@types/opn/-/opn-3.0.28.tgz#097d0d1c9b5749573a5d96df132387bb6d02118a"
-  integrity sha1-CX0NHJtXSVc6XZbfEyOHu20CEYo=
-  dependencies:
-    "@types/node" "*"
-
 "@types/raven@^2.5.1":
   version "2.5.1"
   resolved "https://registry.yarnpkg.com/@types/raven/-/raven-2.5.1.tgz#62ef0a59e29691945e1f295b62ed199619cbd9b6"
@@ -5777,13 +5770,12 @@ onetime@^2.0.0:
   dependencies:
     mimic-fn "^1.0.0"
 
-opn@4.0.2:
-  version "4.0.2"
-  resolved "https://registry.yarnpkg.com/opn/-/opn-4.0.2.tgz#7abc22e644dff63b0a96d5ab7f2790c0f01abc95"
-  integrity sha1-erwi5kTf9jsKltWrfyeQwPAavJU=
+open@^6.4.0:
+  version "6.4.0"
+  resolved "https://registry.yarnpkg.com/open/-/open-6.4.0.tgz#5c13e96d0dc894686164f18965ecfe889ecfc8a9"
+  integrity sha512-IFenVPgF70fSm1keSd2iDBIDIBZkroLeuffXq+wKTzTJlBpesFWojV9lb8mzOfaAzM1sr7HQHuO0vtV0zYekGg==
   dependencies:
-    object-assign "^4.0.1"
-    pinkie-promise "^2.0.0"
+    is-wsl "^1.1.0"
 
 optimist@^0.6.1:
   version "0.6.1"

From e6b3b8ce7270715664d4c8c8d02706b298debbec Mon Sep 17 00:00:00 2001
From: Connor Clark <cjamcl@gmail.com>
Date: Mon, 15 Jul 2019 13:34:24 -0700
Subject: [PATCH 089/110] core(font-size): comment why source = Other happens
 (#9363)

---
 lighthouse-core/audits/seo/font-size.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lighthouse-core/audits/seo/font-size.js b/lighthouse-core/audits/seo/font-size.js
index d7ec4bfa3734..284bb4f608d3 100644
--- a/lighthouse-core/audits/seo/font-size.js
+++ b/lighthouse-core/audits/seo/font-size.js
@@ -176,6 +176,8 @@ function findStyleRuleSource(baseURL, styleDeclaration, node) {
     }
   }
 
+  // The responsible style declaration was not captured in the font-size gatherer due to
+  // the rate limiting we do in `fetchFailingNodeSourceRules`.
   return {
     selector: '',
     source: 'Unknown',

From 31f7142257e844fa0f6cb1e5fa43dc551b94731d Mon Sep 17 00:00:00 2001
From: Connor Clark <cjamcl@google.com>
Date: Mon, 15 Jul 2019 16:49:06 -0700
Subject: [PATCH 090/110] audits(font-size): calculate accurate line/column for
 styles (#9356)

---
 .../test/fixtures/seo/seo-tester-styles.css   |  7 +++
 .../test/fixtures/seo/seo-tester.html         | 17 ++++-
 .../test/smokehouse/seo/expectations.js       | 62 ++++++++++++++++++-
 lighthouse-core/audits/seo/font-size.js       | 26 ++++++--
 4 files changed, 101 insertions(+), 11 deletions(-)
 create mode 100644 lighthouse-cli/test/fixtures/seo/seo-tester-styles.css

diff --git a/lighthouse-cli/test/fixtures/seo/seo-tester-styles.css b/lighthouse-cli/test/fixtures/seo/seo-tester-styles.css
new file mode 100644
index 000000000000..af269713f437
--- /dev/null
+++ b/lighthouse-cli/test/fixtures/seo/seo-tester-styles.css
@@ -0,0 +1,7 @@
+/** some filler */
+
+.small-4 {
+    font-size: 6px;
+}
+
+/*# sourceURL=seo-tester-styles-magic.css */
diff --git a/lighthouse-cli/test/fixtures/seo/seo-tester.html b/lighthouse-cli/test/fixtures/seo/seo-tester.html
index 8eed1643184a..c144253ff72b 100644
--- a/lighthouse-cli/test/fixtures/seo/seo-tester.html
+++ b/lighthouse-cli/test/fixtures/seo/seo-tester.html
@@ -24,7 +24,16 @@
     .small {
       font-size: 11px;
     }
+    </style>
+  <style> /* some filler to offset things */ .small-2 { font-size: 11px; }</style>
+  <style>
+    /* some filler to offset things */
+    .small-3 {
+      font-size: 6px;
+    }
+    /*# sourceURL=seo-tester-inline-magic.css */
   </style>
+  <link rel="stylesheet" href="seo-tester-styles.css">
 </head>
 <body>
   <!-- PASS(hreflang): should ignore links in the body -->
@@ -42,10 +51,14 @@ <h2>Anchor text</h2>
 
   <h2>Small text</h2>
   <!-- PASS(font-size): amount of illegible text is below the 60% threshold -->
-  <p class='small'> 1 </p>
+  <!-- font-size items are ordered by text length, so force an order with filler for stable expectations. -->
+  <p class='small'> 1.... </p>
+  <p class='small-2'> 2... </p>
+  <p class='small-3'> 3.. </p>
+  <p class='small-4'> 4. </p>
   <h6>2</h6>
   <font size="1">3<b>4</b></font>
-  <p style='font-size:10px'>5        </p>
+  <p style='font-size:10px'> 5 </p>
   <script class='small'>
     // text from SCRIPT tags should be ignored by the font-size audit
   </script>
diff --git a/lighthouse-cli/test/smokehouse/seo/expectations.js b/lighthouse-cli/test/smokehouse/seo/expectations.js
index 0d370cd37a1e..5544b6091c2d 100644
--- a/lighthouse-cli/test/smokehouse/seo/expectations.js
+++ b/lighthouse-cli/test/smokehouse/seo/expectations.js
@@ -117,9 +117,65 @@ module.exports = [
         'font-size': {
           score: 1,
           details: {
-            items: {
-              length: 6,
-            },
+            items: [
+              {
+                source: /seo-tester\.html.+:24:12$/,
+                selector: '.small',
+                fontSize: '11px',
+              },
+              {
+                source: /seo-tester\.html.+:28:55$/,
+                selector: '.small-2',
+                fontSize: '11px',
+              },
+              {
+                source: /seo-tester-inline-magic\.css:3:14$/,
+                selector: '.small-3',
+                fontSize: '6px',
+              },
+              {
+                source: /seo-tester-styles-magic\.css:3:10$/,
+                selector: '.small-4',
+                fontSize: '6px',
+              },
+              {
+                source: 'User Agent Stylesheet',
+                selector: 'h6',
+                fontSize: '10px',
+              },
+              {
+                source: /seo-tester\.html.+$/,
+                selector: {
+                  type: 'node',
+                  selector: 'body',
+                  snippet: '<font size="1">',
+                },
+                fontSize: '10px',
+              },
+              {
+                source: /seo-tester\.html.+$/,
+                selector: {
+                  type: 'node',
+                  selector: 'font',
+                  snippet: '<b>',
+                },
+                fontSize: '10px',
+              },
+              {
+                source: /seo-tester\.html.+$/,
+                selector: {
+                  type: 'node',
+                  selector: 'body',
+                  snippet: '<p style="font-size:10px">',
+                },
+                fontSize: '10px',
+              },
+              {
+                source: 'Legible text',
+                selector: '',
+                fontSize: '≥ 12px',
+              },
+            ],
           },
         },
         'link-text': {
diff --git a/lighthouse-core/audits/seo/font-size.js b/lighthouse-core/audits/seo/font-size.js
index 284bb4f608d3..3e36b958865d 100644
--- a/lighthouse-core/audits/seo/font-size.js
+++ b/lighthouse-core/audits/seo/font-size.js
@@ -156,13 +156,27 @@ function findStyleRuleSource(baseURL, styleDeclaration, node) {
         const range = styleDeclaration.range;
         source = `${url.href}`;
 
+        // !!range == has defined location in a source file (.css or .html)
         if (range) {
-          // `stylesheet` can be either an external file (stylesheet.startLine will always be 0),
-          // or a <style> block (stylesheet.startLine will vary)
-          const absoluteStartLine = range.startLine + stylesheet.startLine + 1;
-          const absoluteStartColumn = range.startColumn + stylesheet.startColumn + 1;
-
-          source += `:${absoluteStartLine}:${absoluteStartColumn}`;
+          let line = range.startLine + 1;
+          let column = range.startColumn;
+
+          // Add the startLine/startColumn of the <style> element to the range, if stylesheet
+          // is inline.
+          // Always use the rule's location if a sourceURL magic comment is
+          // present (`hasSourceURL` is true) - this makes the line/col relative to the start
+          // of the style tag, which makes them relevant when the "file" is open in DevTool's
+          // Sources panel.
+          const addHtmlLocationOffset = stylesheet.isInline && !stylesheet.hasSourceURL;
+          if (addHtmlLocationOffset) {
+            line += stylesheet.startLine;
+            // The column the stylesheet begins on is only relevant if the rule is declared on the same line.
+            if (range.startLine === 0) {
+              column += stylesheet.startColumn;
+            }
+          }
+
+          source += `:${line}:${column}`;
         }
       } else {
         // dynamically injected to page

From 65a3f7e3d10c99e98f0dd03da1c2f5ce6b3142bd Mon Sep 17 00:00:00 2001
From: Shane Exterkamp <shaneexterkamp5@gmail.com>
Date: Wed, 17 Jul 2019 14:42:14 -0700
Subject: [PATCH 091/110] tests(i18n): throw when no ICU replacement value is
 given (#9384)

---
 lighthouse-core/lib/i18n/i18n.js           |  6 ++----
 lighthouse-core/test/lib/i18n/i18n-test.js | 12 ++++++++++++
 2 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/lighthouse-core/lib/i18n/i18n.js b/lighthouse-core/lib/i18n/i18n.js
index d3da92e48acb..a6c30210106b 100644
--- a/lighthouse-core/lib/i18n/i18n.js
+++ b/lighthouse-core/lib/i18n/i18n.js
@@ -127,9 +127,7 @@ function lookupLocale(locale) {
  * @param {string} icuMessage
  * @param {Record<string, *>} [values]
  */
-function _preprocessMessageValues(icuMessage, values) {
-  if (!values) return;
-
+function _preprocessMessageValues(icuMessage, values = {}) {
   const clonedValues = JSON.parse(JSON.stringify(values));
   const parsed = MessageParser.parse(icuMessage);
   // Throw an error if a message's value isn't provided
@@ -137,7 +135,7 @@ function _preprocessMessageValues(icuMessage, values) {
     .filter(el => el.type === 'argumentElement')
     .forEach(el => {
       if (el.id && (el.id in values) === false) {
-        throw new Error('ICU Message contains a value reference that wasn\'t provided');
+        throw new Error(`ICU Message contains a value reference ("${el.id}") that wasn't provided`);
       }
     });
 
diff --git a/lighthouse-core/test/lib/i18n/i18n-test.js b/lighthouse-core/test/lib/i18n/i18n-test.js
index 185c1df5e9a9..2782a2bb1d44 100644
--- a/lighthouse-core/test/lib/i18n/i18n-test.js
+++ b/lighthouse-core/test/lib/i18n/i18n-test.js
@@ -102,6 +102,7 @@ describe('i18n', () => {
       helloSecWorld: 'Hello {in, number, seconds} World',
       helloTimeInMsWorld: 'Hello {timeInMs, number, seconds} World',
       helloPercentWorld: 'Hello {in, number, extendedPercent} World',
+      helloWorldMultiReplace: '{hello} {world}',
     };
     const str_ = i18n.createMessageInstanceIdFn(__filename, UIStrings);
 
@@ -134,5 +135,16 @@ describe('i18n', () => {
       const helloPercentStr = str_(UIStrings.helloPercentWorld, {in: 0.43078});
       expect(helloPercentStr).toBeDisplayString('Hello 43.08% World');
     });
+
+    it('throws an error when values are needed but not provided', () => {
+      expect(_ => i18n.getFormatted(str_(UIStrings.helloBytesWorld), 'en-US'))
+      .toThrow(`ICU Message contains a value reference ("in") that wasn't provided`);
+    });
+
+    it('throws an error when a value is missing', () => {
+      expect(_ => i18n.getFormatted(str_(UIStrings.helloWorldMultiReplace,
+        {hello: 'hello'}), 'en-US'))
+      .toThrow(`ICU Message contains a value reference ("world") that wasn't provided`);
+    });
   });
 });

From 5bc1b6e221837cbf7c0886b4d1c2186d5156a2ad Mon Sep 17 00:00:00 2001
From: "A (from Sicily)" <gulina.angelo@gmail.com>
Date: Thu, 18 Jul 2019 00:39:38 +0200
Subject: [PATCH 092/110] misc(network-server-latency): fix serverResponseTime
 typo (#9388)

---
 lighthouse-core/audits/network-server-latency.js     | 12 ++++++------
 .../test/audits/network-server-latency-test.js       |  8 ++++----
 lighthouse-core/test/results/sample_v2.json          |  8 ++++----
 proto/sample_v2_round_trip.json                      |  8 ++++----
 4 files changed, 18 insertions(+), 18 deletions(-)

diff --git a/lighthouse-core/audits/network-server-latency.js b/lighthouse-core/audits/network-server-latency.js
index 03c1539707f0..bd65c50379fa 100644
--- a/lighthouse-core/audits/network-server-latency.js
+++ b/lighthouse-core/audits/network-server-latency.js
@@ -45,22 +45,22 @@ class NetworkServerLatency extends Audit {
 
     /** @type {number} */
     let maxLatency = 0;
-    /** @type {Array<{origin: string, serverReponseTime: number}>} */
+    /** @type {Array<{origin: string, serverResponseTime: number}>} */
     const results = [];
-    for (const [origin, serverReponseTime] of analysis.serverResponseTimeByOrigin.entries()) {
+    for (const [origin, serverResponseTime] of analysis.serverResponseTimeByOrigin.entries()) {
       // Ignore entries that don't look like real origins, like the __SUMMARY__ entry.
       if (!origin.startsWith('http')) continue;
 
-      maxLatency = Math.max(serverReponseTime, maxLatency);
-      results.push({origin, serverReponseTime});
+      maxLatency = Math.max(serverResponseTime, maxLatency);
+      results.push({origin, serverResponseTime});
     }
 
-    results.sort((a, b) => b.serverReponseTime - a.serverReponseTime);
+    results.sort((a, b) => b.serverResponseTime - a.serverResponseTime);
 
     /** @type {LH.Audit.Details.Table['headings']} */
     const headings = [
       {key: 'origin', itemType: 'text', text: str_(i18n.UIStrings.columnURL)},
-      {key: 'serverReponseTime', itemType: 'ms', granularity: 1,
+      {key: 'serverResponseTime', itemType: 'ms', granularity: 1,
         text: str_(i18n.UIStrings.columnTimeSpent)},
     ];
 
diff --git a/lighthouse-core/test/audits/network-server-latency-test.js b/lighthouse-core/test/audits/network-server-latency-test.js
index 37535f00d65f..ec5de79d38ca 100644
--- a/lighthouse-core/test/audits/network-server-latency-test.js
+++ b/lighthouse-core/test/audits/network-server-latency-test.js
@@ -16,7 +16,7 @@ describe('Network Server Latency audit', () => {
     const artifacts = {devtoolsLogs: {defaultPass: acceptableDevToolsLog}};
     const result = await ServerLatency.audit(artifacts, {computedCache: new Map()});
     result.details.items.forEach(
-      item => (item.serverReponseTime = Math.round(item.serverReponseTime * 100) / 100)
+      item => (item.serverResponseTime = Math.round(item.serverResponseTime * 100) / 100)
     );
 
     // These were all from a trace that used our ancient 150ms devtools throttling which appears as
@@ -24,15 +24,15 @@ describe('Network Server Latency audit', () => {
     expect(result.details.items).toEqual([
       {
         origin: 'https://www.google-analytics.com',
-        serverReponseTime: 159.55,
+        serverResponseTime: 159.55,
       },
       {
         origin: 'https://pwa.rocks',
-        serverReponseTime: 159.42,
+        serverResponseTime: 159.42,
       },
       {
         origin: 'https://www.googletagmanager.com',
-        serverReponseTime: 153.03,
+        serverResponseTime: 153.03,
       },
     ]);
   });
diff --git a/lighthouse-core/test/results/sample_v2.json b/lighthouse-core/test/results/sample_v2.json
index ea1424095902..fdb70f610c3e 100644
--- a/lighthouse-core/test/results/sample_v2.json
+++ b/lighthouse-core/test/results/sample_v2.json
@@ -1127,7 +1127,7 @@
             "text": "URL"
           },
           {
-            "key": "serverReponseTime",
+            "key": "serverResponseTime",
             "itemType": "ms",
             "granularity": 1,
             "text": "Time Spent"
@@ -1136,11 +1136,11 @@
         "items": [
           {
             "origin": "http://localhost:10200",
-            "serverReponseTime": 572.829
+            "serverResponseTime": 572.829
           },
           {
             "origin": "http://ajax.googleapis.com",
-            "serverReponseTime": 562.398
+            "serverResponseTime": 562.398
           }
         ]
       }
@@ -6336,4 +6336,4 @@
       }
     }
   ]
-}
\ No newline at end of file
+}
diff --git a/proto/sample_v2_round_trip.json b/proto/sample_v2_round_trip.json
index 0c03c90c9db3..7a1d269528c5 100644
--- a/proto/sample_v2_round_trip.json
+++ b/proto/sample_v2_round_trip.json
@@ -1824,18 +1824,18 @@
                     {
                         "granularity": 1.0,
                         "itemType": "ms",
-                        "key": "serverReponseTime",
+                        "key": "serverResponseTime",
                         "text": "Time Spent"
                     }
                 ],
                 "items": [
                     {
                         "origin": "http://localhost:10200",
-                        "serverReponseTime": 572.829
+                        "serverResponseTime": 572.829
                     },
                     {
                         "origin": "http://ajax.googleapis.com",
-                        "serverReponseTime": 562.398
+                        "serverResponseTime": 562.398
                     }
                 ],
                 "type": "table"
@@ -4991,4 +4991,4 @@
         "total": 12345.6789
     },
     "userAgent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3358.0 Safari/537.36"
-}
\ No newline at end of file
+}

From 13dc309460a5f35a4a7e89108ed4e30e56c77ed6 Mon Sep 17 00:00:00 2001
From: Connor Clark <cjamcl@gmail.com>
Date: Thu, 18 Jul 2019 10:27:29 -0700
Subject: [PATCH 093/110] misc: fix yarn.lock and translations master drift
 (#9404)

---
 lighthouse-core/lib/i18n/locales/en-XL.json | 6 ++++++
 lighthouse-core/test/results/sample_v2.json | 2 +-
 proto/sample_v2_round_trip.json             | 2 +-
 yarn.lock                                   | 5 +++++
 4 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/lighthouse-core/lib/i18n/locales/en-XL.json b/lighthouse-core/lib/i18n/locales/en-XL.json
index d4ccecd4d5bb..7759bc4cae61 100644
--- a/lighthouse-core/lib/i18n/locales/en-XL.json
+++ b/lighthouse-core/lib/i18n/locales/en-XL.json
@@ -1253,9 +1253,15 @@
   "lighthouse-core/lib/lh-error.js | dnsFailure": {
     "message": "D̂ŃŜ śêŕv̂ér̂ś ĉóûĺd̂ ńôt́ r̂éŝól̂v́ê t́ĥé p̂ŕôv́îd́êd́ d̂óm̂áîń."
   },
+  "lighthouse-core/lib/lh-error.js | erroredRequiredArtifact": {
+    "message": "R̂éq̂úîŕêd́ {artifactName} ĝát̂h́êŕêŕ êńĉóûńt̂ér̂éd̂ án̂ ér̂ŕôŕ: {errorMessage}"
+  },
   "lighthouse-core/lib/lh-error.js | internalChromeError": {
     "message": "Âń îńt̂ér̂ńâĺ Ĉh́r̂óm̂é êŕr̂ór̂ óĉćûŕr̂éd̂. Ṕl̂éâśê ŕêśt̂ár̂t́ Ĉh́r̂óm̂é âńd̂ t́r̂ý r̂é-r̂ún̂ńîńĝ Ĺîǵĥt́ĥóûśê."
   },
+  "lighthouse-core/lib/lh-error.js | missingRequiredArtifact": {
+    "message": "R̂éq̂úîŕêd́ {artifactName} ĝát̂h́êŕêŕ d̂íd̂ ńôt́ r̂ún̂."
+  },
   "lighthouse-core/lib/lh-error.js | pageLoadFailed": {
     "message": "L̂íĝh́t̂h́ôúŝé ŵáŝ ún̂áb̂ĺê t́ô ŕêĺîáb̂ĺŷ ĺôád̂ t́ĥé p̂áĝé ŷóû ŕêq́ûéŝt́êd́. M̂ák̂é ŝúr̂é ŷóû ár̂é t̂éŝt́îńĝ t́ĥé ĉór̂ŕêćt̂ ÚR̂Ĺ âńd̂ t́ĥát̂ t́ĥé ŝér̂v́êŕ îś p̂ŕôṕêŕl̂ý r̂éŝṕôńd̂ín̂ǵ t̂ó âĺl̂ ŕêq́ûéŝt́ŝ."
   },
diff --git a/lighthouse-core/test/results/sample_v2.json b/lighthouse-core/test/results/sample_v2.json
index fdb70f610c3e..1ec3c304731d 100644
--- a/lighthouse-core/test/results/sample_v2.json
+++ b/lighthouse-core/test/results/sample_v2.json
@@ -6336,4 +6336,4 @@
       }
     }
   ]
-}
+}
\ No newline at end of file
diff --git a/proto/sample_v2_round_trip.json b/proto/sample_v2_round_trip.json
index 7a1d269528c5..8e2f7b1af859 100644
--- a/proto/sample_v2_round_trip.json
+++ b/proto/sample_v2_round_trip.json
@@ -4991,4 +4991,4 @@
         "total": 12345.6789
     },
     "userAgent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3358.0 Safari/537.36"
-}
+}
\ No newline at end of file
diff --git a/yarn.lock b/yarn.lock
index 5350a9a34b11..6d1d187a8cd4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4280,6 +4280,11 @@ is-windows@^1.0.2:
   resolved "https://registry.yarnpkg.com/is-windows/-/is-windows-1.0.2.tgz#d1850eb9791ecd18e6182ce12a30f396634bb19d"
   integrity sha512-eXK1UInq2bPmjyX6e3VHIzMLobc4J94i4AWn+Hpq3OU5KkrRC96OAcR3PRJ/pGu6m8TRnBHP9dkXQVsT/COVIA==
 
+is-wsl@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/is-wsl/-/is-wsl-1.1.0.tgz#1f16e4aa22b04d1336b66188a66af3c600c3a66d"
+  integrity sha1-HxbkqiKwTRM2tmGIpmrzxgDDpm0=
+
 is-wsl@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/is-wsl/-/is-wsl-2.1.0.tgz#94369bbeb2249ef07b831b1b08590e686330ccbb"

From e3efee092df1de798a3a8c400be078fafef9e579 Mon Sep 17 00:00:00 2001
From: Paul Irish <paulirish@google.com>
Date: Thu, 18 Jul 2019 10:28:34 -0700
Subject: [PATCH 094/110] deps(logger): debug@2.6.9 (#9398)

---
 lighthouse-logger/package.json | 2 +-
 lighthouse-logger/yarn.lock    | 6 ++++--
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/lighthouse-logger/package.json b/lighthouse-logger/package.json
index 0f985fe4f961..65931cd29b57 100644
--- a/lighthouse-logger/package.json
+++ b/lighthouse-logger/package.json
@@ -3,7 +3,7 @@
   "version": "1.2.0",
   "license": "Apache-2.0",
   "dependencies": {
-    "debug": "^2.6.8",
+    "debug": "^2.6.9",
     "marky": "^1.2.0"
   }
 }
diff --git a/lighthouse-logger/yarn.lock b/lighthouse-logger/yarn.lock
index 5cef70256d6c..b4e87126c918 100644
--- a/lighthouse-logger/yarn.lock
+++ b/lighthouse-logger/yarn.lock
@@ -3,8 +3,9 @@
 
 
 debug@^2.6.8:
-  version "2.6.8"
-  resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.8.tgz#e731531ca2ede27d188222427da17821d68ff4fc"
+  version "2.6.9"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.9.tgz#5d128515df134ff327e90a4c93f4e077a536341f"
+  integrity sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==
   dependencies:
     ms "2.0.0"
 
@@ -15,3 +16,4 @@ marky@^1.2.0:
 ms@2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"
+  integrity sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g=

From 474c22e6cd5aaed34511f302ad250eb775d062c2 Mon Sep 17 00:00:00 2001
From: Brendan Kenny <bckenny@gmail.com>
Date: Thu, 18 Jul 2019 12:07:29 -0700
Subject: [PATCH 095/110] tests(i18n): update canonical locale test for node
 12.6 (#9396)

---
 .travis.yml                                   | 2 +-
 lighthouse-core/test/lib/i18n/locales-test.js | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index a1aa6fe7c8d4..bb06f7155213 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,7 +6,7 @@ branches:
 matrix:
   include:
     - node_js: "10"
-    - node_js: "11"
+    - node_js: "12"
       if: head_branch IS blank AND branch = master
 dist: trusty
 cache:
diff --git a/lighthouse-core/test/lib/i18n/locales-test.js b/lighthouse-core/test/lib/i18n/locales-test.js
index eba944fa30cb..0dfab475117e 100644
--- a/lighthouse-core/test/lib/i18n/locales-test.js
+++ b/lighthouse-core/test/lib/i18n/locales-test.js
@@ -18,13 +18,14 @@ describe('locales', () => {
     const deprecatedCodes = {
       in: 'id',
       iw: 'he',
+      mo: 'ro',
     };
 
     for (const locale of Object.keys(locales)) {
       const canonicalLocale = Intl.getCanonicalLocales(locale)[0];
       const substitute = deprecatedCodes[locale];
       assert.ok(locale === canonicalLocale || substitute === canonicalLocale,
-          `locale code '${locale}' not canonical`);
+        `locale code '${locale}' not canonical ('${canonicalLocale}' found instead)`);
     }
 
     // Deprecation subsitutes should be removed from the test if no longer used.

From f968ee94ed539da4046c4e26e65fe3d2990a5554 Mon Sep 17 00:00:00 2001
From: Connor Clark <cjamcl@google.com>
Date: Thu, 18 Jul 2019 16:10:31 -0700
Subject: [PATCH 096/110] tests(font-size): add test for attributing styles to
 node (#9400)

---
 .../gather/gatherers/seo/font-size.js         |  2 +-
 .../test/audits/seo/font-size-test.js         | 55 ++++++++++++++++++-
 types/artifacts.d.ts                          |  1 +
 3 files changed, 56 insertions(+), 2 deletions(-)

diff --git a/lighthouse-core/gather/gatherers/seo/font-size.js b/lighthouse-core/gather/gatherers/seo/font-size.js
index c2617230422c..67b88be347e6 100644
--- a/lighthouse-core/gather/gatherers/seo/font-size.js
+++ b/lighthouse-core/gather/gatherers/seo/font-size.js
@@ -211,7 +211,7 @@ async function fetchSourceRule(driver, node) {
 
 /**
  * @param {Driver} driver
- * @param {LH.Artifacts.FontSize.DomNodeWithParent} textNode text node
+ * @param {LH.Artifacts.FontSize.DomNodeWithParent} textNode
  * @returns {Promise<?NodeFontData>}
  */
 async function fetchComputedFontSize(driver, textNode) {
diff --git a/lighthouse-core/test/audits/seo/font-size-test.js b/lighthouse-core/test/audits/seo/font-size-test.js
index 5e86becfcc5f..83138f0495bb 100644
--- a/lighthouse-core/test/audits/seo/font-size-test.js
+++ b/lighthouse-core/test/audits/seo/font-size-test.js
@@ -8,7 +8,10 @@
 const FontSizeAudit = require('../../../audits/seo/font-size.js');
 const assert = require('assert');
 
-const URL = 'https://example.com';
+const URL = {
+  requestedUrl: 'https://example.com',
+  finalUrl: 'https://example.com',
+};
 const validViewport = 'width=device-width';
 
 /* eslint-env jest */
@@ -234,4 +237,54 @@ describe('SEO: Font size audit', () => {
     expect(auditResult.score).toBe(1);
     expect(auditResult.notApplicable).toBe(true);
   });
+
+  describe('attributes source location', () => {
+    async function runFontSizeAuditWithSingleFailingStyle(style, nodeProperties) {
+      const artifacts = {
+        URL: {finalUrl: 'http://www.example.com'},
+        MetaElements: makeMetaElements(validViewport),
+        FontSize: {
+          analyzedFailingNodesData: [
+            {textLength: 1, fontSize: 1, node: {nodeId: 1, ...nodeProperties}, cssRule: style},
+          ],
+        },
+        TestedAsMobileDevice: true,
+      };
+      const auditResult = await FontSizeAudit.audit(artifacts, getFakeContext());
+      expect(auditResult.details.items).toHaveLength(1);
+      return auditResult;
+    }
+
+    it('to inline node stylesheet', async () => {
+      const auditResult = await runFontSizeAuditWithSingleFailingStyle({
+        type: 'Inline',
+      }, {
+        parentNode: {attributes: ['id', 'my-parent']},
+        localName: 'p',
+        attributes: ['class', 'my-p'],
+      });
+
+      expect(auditResult.details.items[0].selector).toMatchObject({
+        type: 'node',
+        selector: '#my-parent',
+        snippet: '<p class="my-p">',
+      });
+    });
+
+    it('to attributes node stylesheet', async () => {
+      const auditResult = await runFontSizeAuditWithSingleFailingStyle({
+        type: 'Attributes',
+      }, {
+        parentNode: {attributes: ['id', 'my-parent']},
+        localName: 'font',
+        attributes: ['size', '10px'],
+      });
+
+      expect(auditResult.details.items[0].selector).toMatchObject({
+        type: 'node',
+        selector: '#my-parent',
+        snippet: '<font size="10px">',
+      });
+    });
+  });
 });
diff --git a/types/artifacts.d.ts b/types/artifacts.d.ts
index a3d4cb8c36c9..8dda838f1517 100644
--- a/types/artifacts.d.ts
+++ b/types/artifacts.d.ts
@@ -241,6 +241,7 @@ declare global {
         failingTextLength: number;
         visitedTextLength: number;
         analyzedFailingTextLength: number;
+        /** Elements that contain a text node that failed size criteria. */
         analyzedFailingNodesData: Array<{
           fontSize: number;
           textLength: number;

From d2ec9ffbb21de9ad1a0f86ed24575eda32c796f0 Mon Sep 17 00:00:00 2001
From: Noel Yoo <noelyoo.dev@gmail.com>
Date: Fri, 19 Jul 2019 23:28:49 +0900
Subject: [PATCH 097/110] docs: fix various typos (#9411)

---
 docs/architecture.md          | 2 +-
 docs/understanding-results.md | 2 +-
 docs/variability.md           | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/docs/architecture.md b/docs/architecture.md
index cf67e925ddc0..7b519f96af68 100644
--- a/docs/architecture.md
+++ b/docs/architecture.md
@@ -16,7 +16,7 @@ _Some incomplete notes_
 ### Audit/Report terminology
 * **Category** - Roll-up collection of audits and audit groups into a user-facing section of the report (eg. `Best Practices`). Applies weighting and overall scoring to the section. Examples: PWA, Accessibility, Best Practices.
 * **Audit title** - Short user-visible title for the successful audit. eg. “All image elements have `[alt]` attributes.”
-* **Audit failureTitle** - Short user-visible title for a failing  audit. eg. “Some image elements do not have `[alt]` attributes.”
+* **Audit failureTitle** - Short user-visible title for a failing audit. eg. “Some image elements do not have `[alt]` attributes.”
 * **Audit description** - Explanation of why the user should care about the audit. Not necessarily how to fix it, unless there is no external link that explains it. ([See description guidelines](CONTRIBUTING.md#description-guidelines)). eg. “Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. [Learn more].”
 
 ## Protocol
diff --git a/docs/understanding-results.md b/docs/understanding-results.md
index 587f83e5d619..7d795f455912 100644
--- a/docs/understanding-results.md
+++ b/docs/understanding-results.md
@@ -12,7 +12,7 @@ For an always up-to-date definition of the LHR, take a look [at our typedefs](ht
 
 | Name | Description |
 | - | - |
-| lighthouseVersion | The version of Lighthouse with which this result were generated. |
+| lighthouseVersion | The version of Lighthouse with which this result was generated. |
 | fetchTime | The ISO-8601 timestamp of when the result was generated. |
 | userAgent | The user agent string of the version of Chrome that was used by Lighthouse. |
 | requestedUrl | The URL that was supplied to Lighthouse and initially navigated to. |
diff --git a/docs/variability.md b/docs/variability.md
index 6be848435eb0..dce77de3b3b4 100644
--- a/docs/variability.md
+++ b/docs/variability.md
@@ -30,7 +30,7 @@ Local networks have inherent variability from packet loss, variable traffic prio
 
 ### Tier-1 Network Variability
 
-Network interconnects are generally very stable and have minimal impact but cross-geo requests, i.e. measuring performance of a Chinese site from the US, can start to experience a high degree of latency introduced from tier-1 network hops. _Applied_ throttling partially mask these effects with network throttling. _Simulated_ throttling mitigates these effects by replaying network activity on its own.
+Network interconnects are generally very stable and have minimal impact but cross-geo requests, i.e. measuring performance of a Chinese site from the US, can start to experience a high degree of latency introduced from tier-1 network hops. _Applied_ throttling partially masks these effects with network throttling. _Simulated_ throttling mitigates these effects by replaying network activity on its own.
 
 ### Web Server Variability
 

From 7818c8a0e18c822222f4303e7d5c5aa3961ff60f Mon Sep 17 00:00:00 2001
From: Paul Irish <paulirish@google.com>
Date: Fri, 19 Jul 2019 17:29:15 -0700
Subject: [PATCH 098/110] report: use full-bleed image thumbnails (#9238)

---
 lighthouse-core/report/html/report-styles.css | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/lighthouse-core/report/html/report-styles.css b/lighthouse-core/report/html/report-styles.css
index be06994c36f7..5a0fd5d63754 100644
--- a/lighthouse-core/report/html/report-styles.css
+++ b/lighthouse-core/report/html/report-styles.css
@@ -97,6 +97,7 @@
   --header-line-height: 24px;
   --highlighter-background-color: var(--report-text-color);
   --icon-square-size: calc(var(--score-icon-size) * 0.88);
+  --image-preview-size: 48px;
   --metric-toggle-lines-fill: #7F7F7F;
   --metrics-toggle-background-color: var(--color-gray-200);
   --plugin-badge-background-color: var(--color-white);
@@ -208,6 +209,7 @@
     --gauge-percentage-font-size: 26px;
     --gauge-wrapper-width: 112px;
     --header-padding: 16px 0 16px 0;
+    --image-preview-size: 24px;
     --plugin-icon-size: 75%;
     --pwa-icon-margin: 0 7px 0 -3px;
     --report-font-size: 14px;
@@ -1300,7 +1302,6 @@
 }
 
 .lh-table {
-  --image-preview-size: 24px;
   border-collapse: collapse;
   /* Can't assign padding to table, so shorten the width instead. */
   width: calc(100% - var(--audit-description-padding-left));
@@ -1347,8 +1348,10 @@
 }
 
 
-.lh-table-column--thumbnail {
-  width: calc(var(--image-preview-size) * 2);
+
+.lh-table .lh-table-column--thumbnail {
+  width: var(--image-preview-size);
+  padding: 0;
 }
 
 .lh-table-column--url {
@@ -1377,9 +1380,10 @@
 }
 
 .lh-thumbnail {
-  height: var(--image-preview-size);
+  object-fit: cover;
   width: var(--image-preview-size);
-  object-fit: contain;
+  height: var(--image-preview-size);
+  display: block;
 }
 
 .lh-text__url > a {

From 8eb0cde999c0f51777ae0efe6f164f0f9ca54061 Mon Sep 17 00:00:00 2001
From: Brendan Kenny <bckenny@gmail.com>
Date: Fri, 19 Jul 2019 17:36:26 -0700
Subject: [PATCH 099/110] report: add link to docs on performance scoring
 (#9355)

---
 .../test/cli/__snapshots__/index-test.js.snap        |  8 ++++----
 lighthouse-core/config/default-config.js             |  8 ++++----
 lighthouse-core/lib/i18n/en-US.json                  | 10 +++++-----
 lighthouse-core/lib/i18n/locales/en-XL.json          |  6 +++---
 .../html/renderer/performance-category-renderer.js   |  3 ++-
 lighthouse-core/report/html/renderer/util.js         |  2 +-
 lighthouse-core/report/html/report-styles.css        |  4 ++++
 .../renderer/performance-category-renderer-test.js   | 12 ++++++++++++
 lighthouse-core/test/results/sample_v2.json          |  6 +++---
 proto/sample_v2_round_trip.json                      |  6 +++---
 10 files changed, 41 insertions(+), 24 deletions(-)

diff --git a/lighthouse-cli/test/cli/__snapshots__/index-test.js.snap b/lighthouse-cli/test/cli/__snapshots__/index-test.js.snap
index 06c58615e47c..2daeb8136b6f 100644
--- a/lighthouse-cli/test/cli/__snapshots__/index-test.js.snap
+++ b/lighthouse-cli/test/cli/__snapshots__/index-test.js.snap
@@ -1079,11 +1079,11 @@ Object {
       "title": "Budgets",
     },
     "diagnostics": Object {
-      "description": "More information about the performance of your application.",
+      "description": "More information about the performance of your application. These numbers don't [directly affect](https://github.com/GoogleChrome/lighthouse/blob/d2ec9ffbb21de9ad1a0f86ed24575eda32c796f0/docs/scoring.md#how-are-the-scores-weighted) the Performance score.",
       "title": "Diagnostics",
     },
     "load-opportunities": Object {
-      "description": "These optimizations can speed up your page load.",
+      "description": "These suggestions can help your page load faster. They don't [directly affect](https://github.com/GoogleChrome/lighthouse/blob/d2ec9ffbb21de9ad1a0f86ed24575eda32c796f0/docs/scoring.md#how-are-the-scores-weighted) the Performance score.",
       "title": "Opportunities",
     },
     "metrics": Object {
@@ -1326,11 +1326,11 @@ Object {
       "title": "Budgets",
     },
     "diagnostics": Object {
-      "description": "More information about the performance of your application.",
+      "description": "More information about the performance of your application. These numbers don't [directly affect](https://github.com/GoogleChrome/lighthouse/blob/d2ec9ffbb21de9ad1a0f86ed24575eda32c796f0/docs/scoring.md#how-are-the-scores-weighted) the Performance score.",
       "title": "Diagnostics",
     },
     "load-opportunities": Object {
-      "description": "These optimizations can speed up your page load.",
+      "description": "These suggestions can help your page load faster. They don't [directly affect](https://github.com/GoogleChrome/lighthouse/blob/d2ec9ffbb21de9ad1a0f86ed24575eda32c796f0/docs/scoring.md#how-are-the-scores-weighted) the Performance score.",
       "title": "Opportunities",
     },
     "metrics": Object {
diff --git a/lighthouse-core/config/default-config.js b/lighthouse-core/config/default-config.js
index 93ab96ddf671..76c74927394d 100644
--- a/lighthouse-core/config/default-config.js
+++ b/lighthouse-core/config/default-config.js
@@ -21,8 +21,8 @@ const UIStrings = {
   metricGroupTitle: 'Metrics',
   /** Title of the opportunity section of the Performance category. Within this section are audits with imperative titles that suggest actions the user can take to improve the loading performance of their web page. 'Suggestion'/'Optimization'/'Recommendation' are reasonable synonyms for 'opportunity' in this case. */
   loadOpportunitiesGroupTitle: 'Opportunities',
-  /** Description of the opportunity section of the Performance category. 'Optimizations' could also be 'recommendations' or 'suggestions'. Within this section are audits with imperative titles that suggest actions the user can take to improve the loading performance of their web page. */
-  loadOpportunitiesGroupDescription: 'These optimizations can speed up your page load.',
+  /** Description of the opportunity section of the Performance category. 'Suggestions' could also be 'recommendations'. Within this section are audits with imperative titles that suggest actions the user can take to improve the loading performance of their web page. */
+  loadOpportunitiesGroupDescription: 'These suggestions can help your page load faster. They don\'t [directly affect](https://github.com/GoogleChrome/lighthouse/blob/d2ec9ffbb21de9ad1a0f86ed24575eda32c796f0/docs/scoring.md#how-are-the-scores-weighted) the Performance score.',
   /** Title of an opportunity sub-section of the Performance category. Within this section are audits with imperative titles that suggest actions the user can take to improve the time of the first initial render of the webpage. */
   firstPaintImprovementsGroupTitle: 'First Paint Improvements',
   /** Description of an opportunity sub-section of the Performance category. Within this section are audits with imperative titles that suggest actions the user can take to improve the time of the first initial render of the webpage. */
@@ -33,8 +33,8 @@ const UIStrings = {
   overallImprovementsGroupDescription: 'Enhance the overall loading experience, so the page is responsive and ready to use as soon as possible. Key metrics: Time to Interactive, Speed Index',
   /** Title of the diagnostics section of the Performance category. Within this section are audits with non-imperative titles that provide more detail on the page's page load performance characteristics. Whereas the 'Opportunities' suggest an action along with expected time savings, diagnostics do not. Within this section, the user may read the details and deduce additional actions they could take. */
   diagnosticsGroupTitle: 'Diagnostics',
-  /** Description of the diagnostics section of the Performance category. Within this section are audits with non-imperative titles that provide more detail on the page's page load performance characteristics. Whereas the 'Opportunities' suggest an action along with expected time savings, diagnostics do not. Within this section, the user may read the details and deduce additional actions they could take. */
-  diagnosticsGroupDescription: 'More information about the performance of your application.',
+  /** Description of the diagnostics section of the Performance category. Within this section are audits with non-imperative titles that provide more detail on a web page's load performance characteristics. Within this section, the user may read the details and deduce additional actions they could take to improve performance. */
+  diagnosticsGroupDescription: 'More information about the performance of your application. These numbers don\'t [directly affect](https://github.com/GoogleChrome/lighthouse/blob/d2ec9ffbb21de9ad1a0f86ed24575eda32c796f0/docs/scoring.md#how-are-the-scores-weighted) the Performance score.',
   /** Title of the Accessibility category of audits. This section contains audits focused on making web content accessible to all users. Also used as a label of a score gauge; try to limit to 20 characters. */
   a11yCategoryTitle: 'Accessibility',
   /** Description of the Accessibility category. This is displayed at the top of a list of audits focused on making web content accessible to all users. No character length limits. 'improve the accessibility of your web app' becomes link text to additional documentation. */
diff --git a/lighthouse-core/lib/i18n/en-US.json b/lighthouse-core/lib/i18n/en-US.json
index b0dd8ba42de2..c9c19ed8d629 100644
--- a/lighthouse-core/lib/i18n/en-US.json
+++ b/lighthouse-core/lib/i18n/en-US.json
@@ -1476,8 +1476,8 @@
     "description": "Title of the Budgets section of the Performance Category. 'Budgets' refers to a budget (like a financial budget), but applied to the amount of resources on a page, rather than money."
   },
   "lighthouse-core/config/default-config.js | diagnosticsGroupDescription": {
-    "message": "More information about the performance of your application.",
-    "description": "Description of the diagnostics section of the Performance category. Within this section are audits with non-imperative titles that provide more detail on the page's page load performance characteristics. Whereas the 'Opportunities' suggest an action along with expected time savings, diagnostics do not. Within this section, the user may read the details and deduce additional actions they could take."
+    "message": "More information about the performance of your application. These numbers don't [directly affect](https://github.com/GoogleChrome/lighthouse/blob/d2ec9ffbb21de9ad1a0f86ed24575eda32c796f0/docs/scoring.md#how-are-the-scores-weighted) the Performance score.",
+    "description": "Description of the diagnostics section of the Performance category. Within this section are audits with non-imperative titles that provide more detail on a web page's load performance characteristics. Within this section, the user may read the details and deduce additional actions they could take to improve performance."
   },
   "lighthouse-core/config/default-config.js | diagnosticsGroupTitle": {
     "message": "Diagnostics",
@@ -1492,8 +1492,8 @@
     "description": "Title of an opportunity sub-section of the Performance category. Within this section are audits with imperative titles that suggest actions the user can take to improve the time of the first initial render of the webpage."
   },
   "lighthouse-core/config/default-config.js | loadOpportunitiesGroupDescription": {
-    "message": "These optimizations can speed up your page load.",
-    "description": "Description of the opportunity section of the Performance category. 'Optimizations' could also be 'recommendations' or 'suggestions'. Within this section are audits with imperative titles that suggest actions the user can take to improve the loading performance of their web page."
+    "message": "These suggestions can help your page load faster. They don't [directly affect](https://github.com/GoogleChrome/lighthouse/blob/d2ec9ffbb21de9ad1a0f86ed24575eda32c796f0/docs/scoring.md#how-are-the-scores-weighted) the Performance score.",
+    "description": "Description of the opportunity section of the Performance category. 'Suggestions' could also be 'recommendations'. Within this section are audits with imperative titles that suggest actions the user can take to improve the loading performance of their web page."
   },
   "lighthouse-core/config/default-config.js | loadOpportunitiesGroupTitle": {
     "message": "Opportunities",
@@ -1788,7 +1788,7 @@
     "description": "Label shown preceding any important warnings that may have invalidated the entire report. For example, if the user has Chrome extensions installed, they may add enough performance overhead that Lighthouse's performance metrics are unreliable. If shown, this will be displayed at the top of the report UI."
   },
   "lighthouse-core/report/html/renderer/util.js | varianceDisclaimer": {
-    "message": "Values are estimated and may vary.",
+    "message": "Values are estimated and may vary. The performance score is [based only on these metrics](https://github.com/GoogleChrome/lighthouse/blob/d2ec9ffbb21de9ad1a0f86ed24575eda32c796f0/docs/scoring.md#how-are-the-scores-weighted).",
     "description": "Disclaimer shown to users below the metric values (First Contentful Paint, Time to Interactive, etc) to warn them that the numbers they see will likely change slightly the next time they run Lighthouse."
   },
   "lighthouse-core/report/html/renderer/util.js | warningAuditsGroupTitle": {
diff --git a/lighthouse-core/lib/i18n/locales/en-XL.json b/lighthouse-core/lib/i18n/locales/en-XL.json
index 7759bc4cae61..41d675b7ea10 100644
--- a/lighthouse-core/lib/i18n/locales/en-XL.json
+++ b/lighthouse-core/lib/i18n/locales/en-XL.json
@@ -1107,7 +1107,7 @@
     "message": "B̂úd̂ǵêt́ŝ"
   },
   "lighthouse-core/config/default-config.js | diagnosticsGroupDescription": {
-    "message": "M̂ór̂é îńf̂ór̂ḿât́îón̂ áb̂óût́ t̂h́ê ṕêŕf̂ór̂ḿâńĉé ôf́ ŷóûŕ âṕp̂ĺîćât́îón̂."
+    "message": "M̂ór̂é îńf̂ór̂ḿât́îón̂ áb̂óût́ t̂h́ê ṕêŕf̂ór̂ḿâńĉé ôf́ ŷóûŕ âṕp̂ĺîćât́îón̂. T́ĥéŝé n̂úm̂b́êŕŝ d́ôń't̂ [d́îŕêćt̂ĺŷ áf̂f́êćt̂](h́t̂t́p̂ś://ĝít̂h́ûb́.ĉóm̂/ǴôóĝĺêĆĥŕôḿê/ĺîǵĥt́ĥóûśê/b́l̂ób̂/d́2êć9f̂f́b̂b́21d̂é9âd́1â0f́86êd́24575êd́â32ć796f̂0/d́ôćŝ/śĉór̂ín̂ǵ.m̂d́#ĥóŵ-ár̂é-t̂h́ê-śĉór̂éŝ-ẃêíĝh́t̂éd̂) t́ĥé P̂ér̂f́ôŕm̂án̂ćê śĉór̂é."
   },
   "lighthouse-core/config/default-config.js | diagnosticsGroupTitle": {
     "message": "D̂íâǵn̂óŝt́îćŝ"
@@ -1119,7 +1119,7 @@
     "message": "F̂ír̂śt̂ Ṕâín̂t́ Îḿp̂ŕôv́êḿêńt̂ś"
   },
   "lighthouse-core/config/default-config.js | loadOpportunitiesGroupDescription": {
-    "message": "T̂h́êśê óp̂t́îḿîźât́îón̂ś ĉán̂ śp̂éêd́ ûṕ ŷóûŕ p̂áĝé l̂óâd́."
+    "message": "T̂h́êśê śûǵĝéŝt́îón̂ś ĉán̂ h́êĺp̂ ýôúr̂ ṕâǵê ĺôád̂ f́âśt̂ér̂. T́ĥéŷ d́ôń't̂ [d́îŕêćt̂ĺŷ áf̂f́êćt̂](h́t̂t́p̂ś://ĝít̂h́ûb́.ĉóm̂/ǴôóĝĺêĆĥŕôḿê/ĺîǵĥt́ĥóûśê/b́l̂ób̂/d́2êć9f̂f́b̂b́21d̂é9âd́1â0f́86êd́24575êd́â32ć796f̂0/d́ôćŝ/śĉór̂ín̂ǵ.m̂d́#ĥóŵ-ár̂é-t̂h́ê-śĉór̂éŝ-ẃêíĝh́t̂éd̂) t́ĥé P̂ér̂f́ôŕm̂án̂ćê śĉór̂é."
   },
   "lighthouse-core/config/default-config.js | loadOpportunitiesGroupTitle": {
     "message": "Ôṕp̂ór̂t́ûńît́îéŝ"
@@ -1341,7 +1341,7 @@
     "message": "T̂h́êŕê ẃêŕê íŝśûéŝ áf̂f́êćt̂ín̂ǵ t̂h́îś r̂ún̂ óf̂ Ĺîǵĥt́ĥóûśê:"
   },
   "lighthouse-core/report/html/renderer/util.js | varianceDisclaimer": {
-    "message": "V̂ál̂úêś âŕê éŝt́îḿât́êd́ âńd̂ ḿâý v̂ár̂ý."
+    "message": "V̂ál̂úêś âŕê éŝt́îḿât́êd́ âńd̂ ḿâý v̂ár̂ý. T̂h́ê ṕêŕf̂ór̂ḿâńĉé ŝćôŕê íŝ [b́âśêd́ ôńl̂ý ôń t̂h́êśê ḿêt́r̂íĉś](ĥt́t̂ṕŝ://ǵît́ĥúb̂.ćôḿ/Ĝóôǵl̂éĈh́r̂óm̂é/l̂íĝh́t̂h́ôúŝé/b̂ĺôb́/d̂2éĉ9f́f̂b́b̂21d́ê9ád̂1á0f̂86éd̂24575éd̂á32ĉ796f́0/d̂óĉś/ŝćôŕîńĝ.ḿd̂#h́ôẃ-âŕê-t́ĥé-ŝćôŕêś-ŵéîǵĥt́êd́)."
   },
   "lighthouse-core/report/html/renderer/util.js | warningAuditsGroupTitle": {
     "message": "P̂áŝśêd́ âúd̂ít̂ś b̂út̂ ẃît́ĥ ẃâŕn̂ín̂ǵŝ"
diff --git a/lighthouse-core/report/html/renderer/performance-category-renderer.js b/lighthouse-core/report/html/renderer/performance-category-renderer.js
index 1193bb3a8d2d..52c0975f02ff 100644
--- a/lighthouse-core/report/html/renderer/performance-category-renderer.js
+++ b/lighthouse-core/report/html/renderer/performance-category-renderer.js
@@ -148,7 +148,8 @@ class PerformanceCategoryRenderer extends CategoryRenderer {
     // 'Values are estimated and may vary' is used as the category description for PSI
     if (environment !== 'PSI') {
       const estValuesEl = this.dom.createChildOf(metricAuditsEl, 'div', 'lh-metrics__disclaimer');
-      estValuesEl.textContent = Util.UIStrings.varianceDisclaimer;
+      const disclaimerEl = this.dom.convertMarkdownLinkSnippets(Util.UIStrings.varianceDisclaimer);
+      estValuesEl.appendChild(disclaimerEl);
     }
 
     metricAuditsEl.classList.add('lh-audit-group--metrics');
diff --git a/lighthouse-core/report/html/renderer/util.js b/lighthouse-core/report/html/renderer/util.js
index f29b6293374a..b47602a57759 100644
--- a/lighthouse-core/report/html/renderer/util.js
+++ b/lighthouse-core/report/html/renderer/util.js
@@ -557,7 +557,7 @@ Util.numberDateLocale = 'en';
  */
 Util.UIStrings = {
   /** Disclaimer shown to users below the metric values (First Contentful Paint, Time to Interactive, etc) to warn them that the numbers they see will likely change slightly the next time they run Lighthouse. */
-  varianceDisclaimer: 'Values are estimated and may vary.',
+  varianceDisclaimer: 'Values are estimated and may vary. The performance score is [based only on these metrics](https://github.com/GoogleChrome/lighthouse/blob/d2ec9ffbb21de9ad1a0f86ed24575eda32c796f0/docs/scoring.md#how-are-the-scores-weighted).',
   /** Column heading label for the listing of opportunity audits. Each audit title represents an opportunity. There are only 2 columns, so no strict character limit.  */
   opportunityResourceColumnLabel: 'Opportunity',
   /** Column heading label for the estimated page load savings of opportunity audits. Estimated Savings is the total amount of time (in seconds) that Lighthouse computed could be reduced from the total page load time, if the suggested action is taken. There are only 2 columns, so no strict character limit. */
diff --git a/lighthouse-core/report/html/report-styles.css b/lighthouse-core/report/html/report-styles.css
index 5a0fd5d63754..5e3d387ed675 100644
--- a/lighthouse-core/report/html/report-styles.css
+++ b/lighthouse-core/report/html/report-styles.css
@@ -45,6 +45,7 @@
   --color-gray-50: #FAFAFA;
   --color-gray-500: #9E9E9E;
   --color-gray-600: #757575;
+  --color-gray-700: #616161;
   --color-gray-800: #424242;
   --color-gray-900: #212121;
   --color-gray: #000000;
@@ -593,6 +594,9 @@
   color: var(--color-gray-600);
   margin: var(--section-padding-vertical) 0;
 }
+.lh-metrics__disclaimer a {
+  color: var(--color-gray-700);
+}
 
 .lh-metric__description {
   display: none;
diff --git a/lighthouse-core/test/report/html/renderer/performance-category-renderer-test.js b/lighthouse-core/test/report/html/renderer/performance-category-renderer-test.js
index eec7b0744467..7078d1e6cb67 100644
--- a/lighthouse-core/test/report/html/renderer/performance-category-renderer-test.js
+++ b/lighthouse-core/test/report/html/renderer/performance-category-renderer-test.js
@@ -81,6 +81,18 @@ describe('PerfCategoryRenderer', () => {
     assert.equal(timelineElements.length + nontimelineElements.length, metricAudits.length);
   });
 
+  it('renders the metrics variance disclaimer as markdown', () => {
+    const categoryDOM = renderer.render(category, sampleResults.categoryGroups);
+    const disclaimerEl =
+        categoryDOM.querySelector('.lh-audit-group--metrics > .lh-metrics__disclaimer');
+
+    assert.ok(disclaimerEl.textContent.includes('Values are estimated'));
+    const disclamerLink = disclaimerEl.querySelector('a');
+    assert.ok(disclamerLink, 'disclaimer contains coverted markdown link');
+    const disclamerUrl = new URL(disclamerLink.href);
+    assert.strictEqual(disclamerUrl.hostname, 'github.com');
+  });
+
   it('renders the failing performance opportunities', () => {
     const categoryDOM = renderer.render(category, sampleResults.categoryGroups);
 
diff --git a/lighthouse-core/test/results/sample_v2.json b/lighthouse-core/test/results/sample_v2.json
index 1ec3c304731d..082ce4041663 100644
--- a/lighthouse-core/test/results/sample_v2.json
+++ b/lighthouse-core/test/results/sample_v2.json
@@ -4047,7 +4047,7 @@
     },
     "load-opportunities": {
       "title": "Opportunities",
-      "description": "These optimizations can speed up your page load."
+      "description": "These suggestions can help your page load faster. They don't [directly affect](https://github.com/GoogleChrome/lighthouse/blob/d2ec9ffbb21de9ad1a0f86ed24575eda32c796f0/docs/scoring.md#how-are-the-scores-weighted) the Performance score."
     },
     "budgets": {
       "title": "Budgets",
@@ -4055,7 +4055,7 @@
     },
     "diagnostics": {
       "title": "Diagnostics",
-      "description": "More information about the performance of your application."
+      "description": "More information about the performance of your application. These numbers don't [directly affect](https://github.com/GoogleChrome/lighthouse/blob/d2ec9ffbb21de9ad1a0f86ed24575eda32c796f0/docs/scoring.md#how-are-the-scores-weighted) the Performance score."
     },
     "pwa-fast-reliable": {
       "title": "Fast and reliable"
@@ -5112,7 +5112,7 @@
       "snippetExpandButtonLabel": "Expand snippet",
       "thirdPartyResourcesLabel": "Show 3rd-party resources",
       "toplevelWarningsMessage": "There were issues affecting this run of Lighthouse:",
-      "varianceDisclaimer": "Values are estimated and may vary.",
+      "varianceDisclaimer": "Values are estimated and may vary. The performance score is [based only on these metrics](https://github.com/GoogleChrome/lighthouse/blob/d2ec9ffbb21de9ad1a0f86ed24575eda32c796f0/docs/scoring.md#how-are-the-scores-weighted).",
       "warningAuditsGroupTitle": "Passed audits but with warnings",
       "warningHeader": "Warnings: "
     },
diff --git a/proto/sample_v2_round_trip.json b/proto/sample_v2_round_trip.json
index 8e2f7b1af859..4ad9bc15d3bd 100644
--- a/proto/sample_v2_round_trip.json
+++ b/proto/sample_v2_round_trip.json
@@ -3914,11 +3914,11 @@
             "title": "Budgets"
         },
         "diagnostics": {
-            "description": "More information about the performance of your application.",
+            "description": "More information about the performance of your application. These numbers don't [directly affect](https://github.com/GoogleChrome/lighthouse/blob/d2ec9ffbb21de9ad1a0f86ed24575eda32c796f0/docs/scoring.md#how-are-the-scores-weighted) the Performance score.",
             "title": "Diagnostics"
         },
         "load-opportunities": {
-            "description": "These optimizations can speed up your page load.",
+            "description": "These suggestions can help your page load faster. They don't [directly affect](https://github.com/GoogleChrome/lighthouse/blob/d2ec9ffbb21de9ad1a0f86ed24575eda32c796f0/docs/scoring.md#how-are-the-scores-weighted) the Performance score.",
             "title": "Opportunities"
         },
         "metrics": {
@@ -3976,7 +3976,7 @@
             "snippetExpandButtonLabel": "Expand snippet",
             "thirdPartyResourcesLabel": "Show 3rd-party resources",
             "toplevelWarningsMessage": "There were issues affecting this run of Lighthouse:",
-            "varianceDisclaimer": "Values are estimated and may vary.",
+            "varianceDisclaimer": "Values are estimated and may vary. The performance score is [based only on these metrics](https://github.com/GoogleChrome/lighthouse/blob/d2ec9ffbb21de9ad1a0f86ed24575eda32c796f0/docs/scoring.md#how-are-the-scores-weighted).",
             "warningAuditsGroupTitle": "Passed audits but with warnings",
             "warningHeader": "Warnings: "
         }

From 6a4304afa3476eaa4d7121eab4eec60c3f215af3 Mon Sep 17 00:00:00 2001
From: Brendan Kenny <bckenny@gmail.com>
Date: Fri, 19 Jul 2019 17:48:20 -0700
Subject: [PATCH 100/110] core: support saving and loading errors in artifacts
 (#9397)

---
 lighthouse-core/lib/asset-saver.js           | 25 +++++-
 lighthouse-core/lib/lh-error.js              | 82 +++++++++++++++++++-
 lighthouse-core/test/lib/asset-saver-test.js | 64 +++++++++++++++
 lighthouse-core/test/runner-test.js          | 46 ++++++-----
 4 files changed, 192 insertions(+), 25 deletions(-)

diff --git a/lighthouse-core/lib/asset-saver.js b/lighthouse-core/lib/asset-saver.js
index b5325c87756f..8ff4c65ba69a 100644
--- a/lighthouse-core/lib/asset-saver.js
+++ b/lighthouse-core/lib/asset-saver.js
@@ -16,6 +16,7 @@ const rimraf = require('rimraf');
 const mkdirp = require('mkdirp');
 const NetworkAnalysisComputed = require('../computed/network-analysis.js');
 const LoadSimulatorComputed = require('../computed/load-simulator.js');
+const LHError = require('../lib/lh-error.js');
 
 const artifactsFilename = 'artifacts.json';
 const traceSuffix = '.trace.json';
@@ -42,9 +43,10 @@ function loadArtifacts(basePath) {
     throw new Error('No saved artifacts found at ' + basePath);
   }
 
-  // load artifacts.json
+  // load artifacts.json using a reviver to deserialize any LHErrors in artifacts.
+  const artifactsStr = fs.readFileSync(path.join(basePath, artifactsFilename), 'utf8');
   /** @type {LH.Artifacts} */
-  const artifacts = JSON.parse(fs.readFileSync(path.join(basePath, artifactsFilename), 'utf8'));
+  const artifacts = JSON.parse(artifactsStr, LHError.parseReviver);
 
   const filenames = fs.readdirSync(basePath);
 
@@ -73,6 +75,21 @@ function loadArtifacts(basePath) {
   return artifacts;
 }
 
+/**
+ * A replacer function for JSON.stingify of the artifacts. Used to serialize objects that
+ * JSON won't normally handle.
+ * @param {string} key
+ * @param {any} value
+ */
+function stringifyReplacer(key, value) {
+  // Currently only handle LHError and other Error types.
+  if (value instanceof Error) {
+    return LHError.stringifyReplacer(value);
+  }
+
+  return value;
+}
+
 /**
  * Save artifacts object mostly to single file located at basePath/artifacts.log.
  * Also save the traces & devtoolsLogs to their own files
@@ -100,8 +117,8 @@ async function saveArtifacts(artifacts, basePath) {
     fs.writeFileSync(`${basePath}/${passName}${devtoolsLogSuffix}`, log, 'utf8');
   }
 
-  // save everything else
-  const restArtifactsString = JSON.stringify(restArtifacts, null, 2);
+  // save everything else, using a replacer to serialize LHErrors in the artifacts.
+  const restArtifactsString = JSON.stringify(restArtifacts, stringifyReplacer, 2);
   fs.writeFileSync(`${basePath}/${artifactsFilename}`, restArtifactsString, 'utf8');
   log.log('Artifacts saved to disk in folder:', basePath);
   log.timeEnd(status);
diff --git a/lighthouse-core/lib/lh-error.js b/lighthouse-core/lib/lh-error.js
index 63804c1acfb8..7c71b1778f22 100644
--- a/lighthouse-core/lib/lh-error.js
+++ b/lighthouse-core/lib/lh-error.js
@@ -56,10 +56,17 @@ const str_ = i18n.createMessageInstanceIdFn(__filename, UIStrings);
  * @property {boolean} [lhrRuntimeError] True if it should appear in the top-level LHR.runtimeError property.
  */
 
+const LHERROR_SENTINEL = '__LighthouseErrorSentinel';
+const ERROR_SENTINEL = '__ErrorSentinel';
+/**
+ * @typedef {{sentinel: '__LighthouseErrorSentinel', code: string, stack?: string, [p: string]: string|undefined}} SerializedLighthouseError
+ * @typedef {{sentinel: '__ErrorSentinel', message: string, code?: string, stack?: string}} SerializedBaseError
+ */
+
 class LighthouseError extends Error {
   /**
    * @param {LighthouseErrorDefinition} errorDefinition
-   * @param {Record<string, string|boolean|undefined>=} properties
+   * @param {Record<string, string|undefined>=} properties
    */
   constructor(errorDefinition, properties) {
     super(errorDefinition.code);
@@ -96,6 +103,77 @@ class LighthouseError extends Error {
     const error = new Error(`Protocol error ${errMsg}`);
     return Object.assign(error, {protocolMethod: method, protocolError: protocolError.message});
   }
+
+  /**
+   * A JSON.stringify replacer to serialize LHErrors and (as a fallback) Errors.
+   * Returns a simplified version of the error object that can be reconstituted
+   * as a copy of the original error at parse time.
+   * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#The_replacer_parameter
+   * @param {Error|LighthouseError} err
+   * @return {SerializedBaseError|SerializedLighthouseError}
+   */
+  static stringifyReplacer(err) {
+    if (err instanceof LighthouseError) {
+      // Remove class props so that remaining values were what was passed in as `properties`.
+      // eslint-disable-next-line no-unused-vars
+      const {name, code, message, friendlyMessage, lhrRuntimeError, stack, ...properties} = err;
+
+      return {
+        sentinel: LHERROR_SENTINEL,
+        code,
+        stack,
+        ...properties,
+      };
+    }
+
+    // Unexpected errors won't be LHErrors, but we want them serialized as well.
+    if (err instanceof Error) {
+      const {message, stack} = err;
+      // @ts-ignore - code can be helpful for e.g. node errors, so preserve it if it's present.
+      const code = err.code;
+      return {
+        sentinel: ERROR_SENTINEL,
+        message,
+        code,
+        stack,
+      };
+    }
+
+    throw new Error('Invalid value for LHError stringification');
+  }
+
+  /**
+   * A JSON.parse reviver. If any value passed in is a serialized Error or
+   * LHError, the error is recreated as the original object. Otherwise, the
+   * value is passed through unchanged.
+   * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/parse#Using_the_reviver_parameter
+   * @param {string} key
+   * @param {any} possibleError
+   * @return {any}
+   */
+  static parseReviver(key, possibleError) {
+    if (typeof possibleError === 'object' && possibleError !== null) {
+      if (possibleError.sentinel === LHERROR_SENTINEL) {
+        // Include sentinel in destructuring so it doesn't end up in `properties`.
+        // eslint-disable-next-line no-unused-vars
+        const {sentinel, code, stack, ...properties} = /** @type {SerializedLighthouseError} */ (possibleError);
+        const errorDefinition = LighthouseError.errors[/** @type {keyof typeof ERRORS} */ (code)];
+        const lhError = new LighthouseError(errorDefinition, properties);
+        lhError.stack = stack;
+
+        return lhError;
+      }
+
+      if (possibleError.sentinel === ERROR_SENTINEL) {
+        const {message, code, stack} = /** @type {SerializedBaseError} */ (possibleError);
+        const error = new Error(message);
+        Object.assign(error, {code, stack});
+        return error;
+      }
+    }
+
+    return possibleError;
+  }
 }
 
 const ERRORS = {
@@ -227,7 +305,7 @@ const ERRORS = {
   },
 
   /* Protocol timeout failures
-   * Requires an additional `icuProtocolMethod` field for translation.
+   * Requires an additional `protocolMethod` field for translation.
    */
   PROTOCOL_TIMEOUT: {
     code: 'PROTOCOL_TIMEOUT',
diff --git a/lighthouse-core/test/lib/asset-saver-test.js b/lighthouse-core/test/lib/asset-saver-test.js
index c37a8e36047f..bce063e58a1c 100644
--- a/lighthouse-core/test/lib/asset-saver-test.js
+++ b/lighthouse-core/test/lib/asset-saver-test.js
@@ -9,6 +9,8 @@ const assetSaver = require('../../lib/asset-saver.js');
 const Metrics = require('../../lib/traces/pwmetrics-events.js');
 const assert = require('assert');
 const fs = require('fs');
+const rimraf = require('rimraf');
+const LHError = require('../../lib/lh-error.js');
 
 const traceEvents = require('../fixtures/traces/progressive-app.json');
 const dbwTrace = require('../results/artifacts/defaultPass.trace.json');
@@ -167,6 +169,68 @@ describe('asset-saver helper', () => {
     });
   });
 
+  describe('JSON serialization', () => {
+    const outputPath = __dirname + '/json-serialization-test-data/';
+
+    afterEach(() => {
+      rimraf.sync(outputPath);
+    });
+
+    it('round trips saved artifacts', async () => {
+      const artifactsPath = __dirname + '/../results/artifacts/';
+      const originalArtifacts = await assetSaver.loadArtifacts(artifactsPath);
+
+      await assetSaver.saveArtifacts(originalArtifacts, outputPath);
+      const roundTripArtifacts = await assetSaver.loadArtifacts(outputPath);
+      expect(roundTripArtifacts).toStrictEqual(originalArtifacts);
+    });
+
+    it('round trips artifacts with an Error member', async () => {
+      const error = new Error('Connection refused by server');
+      // test code to make sure e.g. Node errors get serialized well.
+      error.code = 'ECONNREFUSED';
+
+      const artifacts = {
+        traces: {},
+        devtoolsLogs: {},
+        ViewportDimensions: error,
+      };
+
+      await assetSaver.saveArtifacts(artifacts, outputPath);
+      const roundTripArtifacts = await assetSaver.loadArtifacts(outputPath);
+      expect(roundTripArtifacts).toStrictEqual(artifacts);
+
+      expect(roundTripArtifacts.ViewportDimensions).toBeInstanceOf(Error);
+      expect(roundTripArtifacts.ViewportDimensions.code).toEqual('ECONNREFUSED');
+      expect(roundTripArtifacts.ViewportDimensions.stack).toMatch(
+        /^Error: Connection refused by server.*test[\\/]lib[\\/]asset-saver-test\.js/s);
+    });
+
+    it('round trips artifacts with an LHError member', async () => {
+      // Use an LHError that has an ICU replacement.
+      const protocolMethod = 'Page.getFastness';
+      const lhError = new LHError(LHError.errors.PROTOCOL_TIMEOUT, {protocolMethod});
+
+      const artifacts = {
+        traces: {},
+        devtoolsLogs: {},
+        ScriptElements: lhError,
+      };
+
+      await assetSaver.saveArtifacts(artifacts, outputPath);
+      const roundTripArtifacts = await assetSaver.loadArtifacts(outputPath);
+      expect(roundTripArtifacts).toStrictEqual(artifacts);
+
+      expect(roundTripArtifacts.ScriptElements).toBeInstanceOf(LHError);
+      expect(roundTripArtifacts.ScriptElements.code).toEqual('PROTOCOL_TIMEOUT');
+      expect(roundTripArtifacts.ScriptElements.protocolMethod).toEqual(protocolMethod);
+      expect(roundTripArtifacts.ScriptElements.stack).toMatch(
+          /^LHError: PROTOCOL_TIMEOUT.*test[\\/]lib[\\/]asset-saver-test\.js/s);
+      expect(roundTripArtifacts.ScriptElements.friendlyMessage)
+        .toBeDisplayString(/\(Method: Page\.getFastness\)/);
+    });
+  });
+
   describe('saveLanternNetworkData', () => {
     const outputFilename = 'test-lantern-network-data.json';
 
diff --git a/lighthouse-core/test/runner-test.js b/lighthouse-core/test/runner-test.js
index ccf4bf339401..99c41c8619e7 100644
--- a/lighthouse-core/test/runner-test.js
+++ b/lighthouse-core/test/runner-test.js
@@ -330,32 +330,40 @@ describe('Runner', () => {
       });
     });
 
-    // TODO: need to support save/load of artifact errors.
-    // See https://github.com/GoogleChrome/lighthouse/issues/4984
-    it.skip('outputs an error audit result when required artifact was an Error', () => {
-      const errorMessage = 'blurst of times';
-      const artifactError = new Error(errorMessage);
+    it('outputs an error audit result when required artifact was an Error', async () => {
+      // Start with empty-artifacts.
+      const baseArtifacts = assetSaver.loadArtifacts(__dirname +
+          '/fixtures/artifacts/empty-artifacts/');
 
-      const url = 'https://example.com';
+      // Add error and save artifacts using assetSaver to serialize Error object.
+      const errorMessage = 'blurst of times';
+      const artifacts = {
+        ...baseArtifacts,
+        ViewportDimensions: new Error(errorMessage),
+        TestedAsMobileDevice: true,
+      };
+      const artifactsPath = '.tmp/test_artifacts';
+      const resolvedPath = path.resolve(process.cwd(), artifactsPath);
+      await assetSaver.saveArtifacts(artifacts, resolvedPath);
+
+      // Load artifacts via auditMode.
       const config = new Config({
+        settings: {
+          auditMode: resolvedPath,
+        },
         audits: [
+          // requires ViewportDimensions and TestedAsMobileDevice artifacts
           'content-width',
         ],
-
-        artifacts: {
-          // Error objects don't make it through the Config constructor due to
-          // JSON.stringify/parse step, so populate with test error below.
-          ViewportDimensions: null,
-        },
       });
-      config.artifacts.ViewportDimensions = artifactError;
 
-      return Runner.run({}, {url, config}).then(results => {
-        const auditResult = results.lhr.audits['content-width'];
-        assert.strictEqual(auditResult.score, null);
-        assert.strictEqual(auditResult.scoreDisplayMode, 'error');
-        assert.ok(auditResult.errorMessage.includes(errorMessage));
-      });
+      const results = await Runner.run({}, {config});
+      const auditResult = results.lhr.audits['content-width'];
+      assert.strictEqual(auditResult.score, null);
+      assert.strictEqual(auditResult.scoreDisplayMode, 'error');
+      assert.ok(auditResult.errorMessage.includes(errorMessage));
+
+      rimraf.sync(resolvedPath);
     });
 
     it('only passes the required artifacts to the audit', async () => {

From f4572a4566d1d195f5ec4ced05f1b3e9db16a505 Mon Sep 17 00:00:00 2001
From: Connor Clark <cjamcl@gmail.com>
Date: Fri, 19 Jul 2019 17:57:15 -0700
Subject: [PATCH 101/110] tests: assert vulnerable-library ranges have upper
 bounds (#9308)

---
 .../no-vulnerable-libraries-test.js           | 53 +++++++++++++++++++
 1 file changed, 53 insertions(+)

diff --git a/lighthouse-core/test/audits/dobetterweb/no-vulnerable-libraries-test.js b/lighthouse-core/test/audits/dobetterweb/no-vulnerable-libraries-test.js
index ef65ff78c428..33f1c60fe794 100644
--- a/lighthouse-core/test/audits/dobetterweb/no-vulnerable-libraries-test.js
+++ b/lighthouse-core/test/audits/dobetterweb/no-vulnerable-libraries-test.js
@@ -8,6 +8,7 @@
 const NoVulnerableLibrariesAudit =
   require('../../../audits/dobetterweb/no-vulnerable-libraries.js');
 const assert = require('assert');
+const semver = require('semver');
 
 /* eslint-env jest */
 describe('Avoids front-end JavaScript libraries with known vulnerabilities', () => {
@@ -99,3 +100,55 @@ describe('Avoids front-end JavaScript libraries with known vulnerabilities', ()
     assert.equal(auditResult.score, 1);
   });
 });
+
+describe('Snyk database', () => {
+  // https://github.com/npm/node-semver/issues/166#issuecomment-245990039
+  function hasUpperBound(rangeString) {
+    const range = new semver.Range(rangeString);
+    if (!range) return false;
+
+    // For every subset ...
+    for (const subset of range.set) {
+    // Upperbound exists if...
+
+    // < or <= is in one of the subset's clauses (= gets normalized to >= and <).
+      if (subset.some(comparator => comparator.operator && comparator.operator.match(/^</))) {
+        continue;
+      }
+
+      // Subset has a prerelease tag (operator will be empty string).
+      if (subset.length === 1 && subset[0].operator === '') {
+        continue;
+      }
+
+      // No upperbound for this subset.
+      return false;
+    }
+
+    return true;
+  }
+
+  it('hasUpperBound works as intended', () => {
+    assert.equal(hasUpperBound('<1.12.2'), true);
+    assert.equal(hasUpperBound('=1.12.2'), true);
+    assert.equal(hasUpperBound('>=1.12.3 <2.2.2'), true);
+    assert.equal(hasUpperBound('>=2.2.3 <3.0.0'), true);
+    assert.equal(hasUpperBound('>=3.0.0 <3.10.1 || =3.10.2'), true);
+
+    assert.equal(hasUpperBound('>1.12.2'), false);
+    assert.equal(hasUpperBound('>=1.12.2'), false);
+    assert.equal(hasUpperBound('*'), false);
+  });
+
+  it('every snyk vulnerability has an upper bound', () => {
+    for (const vulns of Object.values(NoVulnerableLibrariesAudit.snykDB.npm)) {
+      for (const vuln of vulns) {
+        for (const semver of vuln.semver.vulnerable) {
+          if (!hasUpperBound(semver)) {
+            assert.fail(`invalid semver: ${semver}. Must contain an upper bound`);
+          }
+        }
+      }
+    }
+  });
+});

From d8c11863447fd6dac1fc0596858f97f7e80efe67 Mon Sep 17 00:00:00 2001
From: John <309310+johnemau@users.noreply.github.com>
Date: Sat, 20 Jul 2019 17:55:28 -0700
Subject: [PATCH 102/110] =?UTF-8?q?report(accessibility):=20add=20heading?=
 =?UTF-8?q?=20role=20to=20report=20category=20gaug=E2=80=A6=20(#9422)?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 lighthouse-core/report/html/templates.html | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lighthouse-core/report/html/templates.html b/lighthouse-core/report/html/templates.html
index 26687d46d844..a418bf9f1fbe 100644
--- a/lighthouse-core/report/html/templates.html
+++ b/lighthouse-core/report/html/templates.html
@@ -45,7 +45,7 @@
 <!-- Lighthouse category header -->
 <template id="tmpl-lh-category-header">
   <div class="lh-category-header">
-    <div class="lh-score__gauge"></div>
+    <div class="lh-score__gauge" role="heading" aria-level="2"></div>
     <div class="lh-category-header__description"></div>
   </div>
 </template>

From 65b88b5681fce2f05d95407efe6a88c6c9d302b9 Mon Sep 17 00:00:00 2001
From: Brendan Kenny <bckenny@gmail.com>
Date: Mon, 22 Jul 2019 18:01:39 -0700
Subject: [PATCH 103/110] misc: nest deployed-report directory (#9434)

---
 lighthouse-core/scripts/build-report-for-autodeployment.js | 2 +-
 now.json                                                   | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/lighthouse-core/scripts/build-report-for-autodeployment.js b/lighthouse-core/scripts/build-report-for-autodeployment.js
index 1fd9c29046e5..ea1260a86e3c 100644
--- a/lighthouse-core/scripts/build-report-for-autodeployment.js
+++ b/lighthouse-core/scripts/build-report-for-autodeployment.js
@@ -19,7 +19,7 @@ const {defaultSettings} = require('../config/constants.js');
 const lighthouse = require('../index.js');
 const lhr = /** @type {LH.Result} */ (require('../../lighthouse-core/test/results/sample_v2.json'));
 
-const DIST = path.join(__dirname, `../../dist`);
+const DIST = path.join(__dirname, `../../dist/now`);
 
 (async function() {
   addPluginCategory(lhr);
diff --git a/now.json b/now.json
index 02b220f9dada..9e04006d223d 100644
--- a/now.json
+++ b/now.json
@@ -3,7 +3,8 @@
   "builds": [
     {
       "src": "package.json",
-      "use": "@now/static-build"
+      "use": "@now/static-build",
+      "config": {"distDir": "dist/now"}
     }
   ],
   "github": {

From 39b63367cb8d466c0c65aeb4d8ac738a8e7e170b Mon Sep 17 00:00:00 2001
From: Connor Clark <cjamcl@google.com>
Date: Tue, 23 Jul 2019 14:54:09 -0700
Subject: [PATCH 104/110] tests(font-size): assert on source (#9413)

---
 .../test/audits/seo/font-size-test.js         | 26 ++++++++++++-------
 1 file changed, 16 insertions(+), 10 deletions(-)

diff --git a/lighthouse-core/test/audits/seo/font-size-test.js b/lighthouse-core/test/audits/seo/font-size-test.js
index 83138f0495bb..ceb715c2df98 100644
--- a/lighthouse-core/test/audits/seo/font-size-test.js
+++ b/lighthouse-core/test/audits/seo/font-size-test.js
@@ -238,10 +238,10 @@ describe('SEO: Font size audit', () => {
     expect(auditResult.notApplicable).toBe(true);
   });
 
-  describe('attributes source location', () => {
+  describe('attributes source of style', () => {
     async function runFontSizeAuditWithSingleFailingStyle(style, nodeProperties) {
       const artifacts = {
-        URL: {finalUrl: 'http://www.example.com'},
+        URL,
         MetaElements: makeMetaElements(validViewport),
         FontSize: {
           analyzedFailingNodesData: [
@@ -264,10 +264,13 @@ describe('SEO: Font size audit', () => {
         attributes: ['class', 'my-p'],
       });
 
-      expect(auditResult.details.items[0].selector).toMatchObject({
-        type: 'node',
-        selector: '#my-parent',
-        snippet: '<p class="my-p">',
+      expect(auditResult.details.items[0]).toMatchObject({
+        source: URL.finalUrl,
+        selector: {
+          type: 'node',
+          selector: '#my-parent',
+          snippet: '<p class="my-p">',
+        },
       });
     });
 
@@ -280,10 +283,13 @@ describe('SEO: Font size audit', () => {
         attributes: ['size', '10px'],
       });
 
-      expect(auditResult.details.items[0].selector).toMatchObject({
-        type: 'node',
-        selector: '#my-parent',
-        snippet: '<font size="10px">',
+      expect(auditResult.details.items[0]).toMatchObject({
+        source: URL.finalUrl,
+        selector: {
+          type: 'node',
+          selector: '#my-parent',
+          snippet: '<font size="10px">',
+        },
       });
     });
   });

From 85429f977294b2d542a114fce50a2075ed47e515 Mon Sep 17 00:00:00 2001
From: Deepanjan Roy <dproy@google.com>
Date: Tue, 23 Jul 2019 19:07:40 -0400
Subject: [PATCH 105/110] core(tbt): clean up total blocking time metric
 (#9409)

---
 .../test/cli/__snapshots__/index-test.js.snap |   4 +-
 lighthouse-core/audits/metrics.js             |   8 +-
 ...ueuing-delay.js => total-blocking-time.js} |  42 ++---
 ...elay.js => lantern-total-blocking-time.js} |  22 +--
 ...ueuing-delay.js => total-blocking-time.js} |  80 +++++-----
 lighthouse-core/config/default-config.js      |   4 +-
 lighthouse-core/lib/i18n/en-US.json           |   8 +
 lighthouse-core/lib/i18n/locales/en-XL.json   |   6 +
 .../audits/__snapshots__/metrics-test.js.snap |   2 +-
 ...ay-test.js => total-blocking-time-test.js} |  14 +-
 .../cumulative-long-queuing-delay-test.js     | 115 --------------
 .../metrics/total-blocking-time-test.js       | 148 ++++++++++++++++++
 lighthouse-core/test/results/sample_v2.json   |  28 +++-
 proto/sample_v2_round_trip.json               |  28 ++--
 14 files changed, 281 insertions(+), 228 deletions(-)
 rename lighthouse-core/audits/metrics/{cumulative-long-queuing-delay.js => total-blocking-time.js} (52%)
 rename lighthouse-core/computed/metrics/{lantern-cumulative-long-queuing-delay.js => lantern-total-blocking-time.js} (82%)
 rename lighthouse-core/computed/metrics/{cumulative-long-queuing-delay.js => total-blocking-time.js} (51%)
 rename lighthouse-core/test/audits/metrics/{cumulative-long-queuing-delay-test.js => total-blocking-time-test.js} (71%)
 delete mode 100644 lighthouse-core/test/computed/metrics/cumulative-long-queuing-delay-test.js
 create mode 100644 lighthouse-core/test/computed/metrics/total-blocking-time-test.js

diff --git a/lighthouse-cli/test/cli/__snapshots__/index-test.js.snap b/lighthouse-cli/test/cli/__snapshots__/index-test.js.snap
index 2daeb8136b6f..dbb9cbc02830 100644
--- a/lighthouse-cli/test/cli/__snapshots__/index-test.js.snap
+++ b/lighthouse-cli/test/cli/__snapshots__/index-test.js.snap
@@ -43,7 +43,7 @@ Object {
       "path": "metrics/estimated-input-latency",
     },
     Object {
-      "path": "metrics/cumulative-long-queuing-delay",
+      "path": "metrics/total-blocking-time",
     },
     Object {
       "path": "metrics/max-potential-fid",
@@ -717,7 +717,7 @@ Object {
           "weight": 0,
         },
         Object {
-          "id": "cumulative-long-queuing-delay",
+          "id": "total-blocking-time",
           "weight": 0,
         },
         Object {
diff --git a/lighthouse-core/audits/metrics.js b/lighthouse-core/audits/metrics.js
index 374517c2137a..98a50d46e7c5 100644
--- a/lighthouse-core/audits/metrics.js
+++ b/lighthouse-core/audits/metrics.js
@@ -14,7 +14,7 @@ const FirstCPUIdle = require('../computed/metrics/first-cpu-idle.js');
 const Interactive = require('../computed/metrics/interactive.js');
 const SpeedIndex = require('../computed/metrics/speed-index.js');
 const EstimatedInputLatency = require('../computed/metrics/estimated-input-latency.js');
-const CumulativeLongQueuingDelay = require('../computed/metrics/cumulative-long-queuing-delay.js');
+const TotalBlockingTime = require('../computed/metrics/total-blocking-time.js');
 
 class Metrics extends Audit {
   /**
@@ -60,7 +60,7 @@ class Metrics extends Audit {
     const interactive = await requestOrUndefined(Interactive, metricComputationData);
     const speedIndex = await requestOrUndefined(SpeedIndex, metricComputationData);
     const estimatedInputLatency = await EstimatedInputLatency.request(metricComputationData, context); // eslint-disable-line max-len
-    const cumulativeLongQueuingDelay = await CumulativeLongQueuingDelay.request(metricComputationData, context); // eslint-disable-line max-len
+    const totalBlockingTime = await TotalBlockingTime.request(metricComputationData, context); // eslint-disable-line max-len
 
     /** @type {UberMetricsItem} */
     const metrics = {
@@ -77,7 +77,7 @@ class Metrics extends Audit {
       speedIndexTs: speedIndex && speedIndex.timestamp,
       estimatedInputLatency: estimatedInputLatency.timing,
       estimatedInputLatencyTs: estimatedInputLatency.timestamp,
-      cumulativeLongQueuingDelay: cumulativeLongQueuingDelay.timing,
+      totalBlockingTime: totalBlockingTime.timing,
 
       // Include all timestamps of interest from trace of tab
       observedNavigationStart: traceOfTab.timings.navigationStart,
@@ -140,7 +140,7 @@ class Metrics extends Audit {
  * @property {number=} speedIndexTs
  * @property {number} estimatedInputLatency
  * @property {number=} estimatedInputLatencyTs
- * @property {number} cumulativeLongQueuingDelay
+ * @property {number} totalBlockingTime
  * @property {number} observedNavigationStart
  * @property {number} observedNavigationStartTs
  * @property {number=} observedFirstPaint
diff --git a/lighthouse-core/audits/metrics/cumulative-long-queuing-delay.js b/lighthouse-core/audits/metrics/total-blocking-time.js
similarity index 52%
rename from lighthouse-core/audits/metrics/cumulative-long-queuing-delay.js
rename to lighthouse-core/audits/metrics/total-blocking-time.js
index dd0297ad8da6..174e5d5d53b7 100644
--- a/lighthouse-core/audits/metrics/cumulative-long-queuing-delay.js
+++ b/lighthouse-core/audits/metrics/total-blocking-time.js
@@ -6,24 +6,28 @@
 'use strict';
 
 const Audit = require('../audit.js');
-const CumulativeLQD = require('../../computed/metrics/cumulative-long-queuing-delay.js');
+const ComputedTBT = require('../../computed/metrics/total-blocking-time.js');
+const i18n = require('../../lib/i18n/i18n.js');
 
-// TODO(deepanjanroy): i18n strings once metric is final.
-const UIStringsNotExported = {
-  title: 'Cumulative Long Queuing Delay',
-  description: '[Experimental metric] Total time period between FCP and Time to Interactive ' +
-      'during which queuing time for any input event would be higher than 50ms.',
+const UIStrings = {
+  /** The name of a metric that calculates the total duration of blocking time for a web page. Blocking times are time periods when the page would be blocked (prevented) from responding to user input (clicks, taps, and keypresses will feel slow to respond). Shown to users as the label for the numeric metric value. Ideally fits within a ~40 character limit. */
+  title: 'Total Blocking Time',
+  /** Description of the Total Blocking Time (TBT) metric, which calculates the total duration of blocking time for a web page. Blocking times are time periods when the page would be blocked (prevented) from responding to user input (clicks, taps, and keypresses will feel slow to respond). This is displayed within a tooltip when the user hovers on the metric name to see more. No character length limits.*/
+  description: 'Sum of all time periods between FCP and Time to Interactive, ' +
+      'when task length exceeded 50ms, expressed in milliseconds.',
 };
 
-class CumulativeLongQueuingDelay extends Audit {
+const str_ = i18n.createMessageInstanceIdFn(__filename, UIStrings);
+
+class TotalBlockingTime extends Audit {
   /**
    * @return {LH.Audit.Meta}
    */
   static get meta() {
     return {
-      id: 'cumulative-long-queuing-delay',
-      title: UIStringsNotExported.title,
-      description: UIStringsNotExported.description,
+      id: 'total-blocking-time',
+      title: str_(UIStrings.title),
+      description: str_(UIStrings.description),
       scoreDisplayMode: Audit.SCORING_MODES.NUMERIC,
       requiredArtifacts: ['traces', 'devtoolsLogs'],
     };
@@ -46,13 +50,12 @@ class CumulativeLongQueuingDelay extends Audit {
   }
 
   /**
-   * Audits the page to calculate Cumulative Long Queuing Delay.
+   * Audits the page to calculate Total Blocking Time.
    *
-   * We define Long Queuing Delay Region as any time interval in the loading timeline where queuing
-   * time for an input event would be longer than 50ms. For example, if there is a 110ms main thread
-   * task, the first 60ms of it is Long Queuing Delay Region, because any input event occuring in
-   * that region has to wait more than 50ms. Cumulative Long Queuing Delay is the sum of all Long
-   * Queuing Delay Regions between First Contentful Paint and Interactive Time (TTI).
+   * We define Blocking Time as any time interval in the loading timeline where task length exceeds
+   * 50ms. For example, if there is a 110ms main thread task, the last 60ms of it is blocking time.
+   * Total Blocking Time is the sum of all Blocking Time between First Contentful Paint and
+   * Interactive Time (TTI).
    *
    * @param {LH.Artifacts} artifacts
    * @param {LH.Audit.Context} context
@@ -62,7 +65,7 @@ class CumulativeLongQueuingDelay extends Audit {
     const trace = artifacts.traces[Audit.DEFAULT_PASS];
     const devtoolsLog = artifacts.devtoolsLogs[Audit.DEFAULT_PASS];
     const metricComputationData = {trace, devtoolsLog, settings: context.settings};
-    const metricResult = await CumulativeLQD.request(metricComputationData, context);
+    const metricResult = await ComputedTBT.request(metricComputationData, context);
 
     return {
       score: Audit.computeLogNormalScore(
@@ -71,9 +74,10 @@ class CumulativeLongQueuingDelay extends Audit {
         context.options.scoreMedian
       ),
       numericValue: metricResult.timing,
-      displayValue: 10 * Math.round(metricResult.timing / 10) + '\xa0ms',
+      displayValue: str_(i18n.UIStrings.ms, {timeInMs: metricResult.timing}),
     };
   }
 }
 
-module.exports = CumulativeLongQueuingDelay;
+module.exports = TotalBlockingTime;
+module.exports.UIStrings = UIStrings;
diff --git a/lighthouse-core/computed/metrics/lantern-cumulative-long-queuing-delay.js b/lighthouse-core/computed/metrics/lantern-total-blocking-time.js
similarity index 82%
rename from lighthouse-core/computed/metrics/lantern-cumulative-long-queuing-delay.js
rename to lighthouse-core/computed/metrics/lantern-total-blocking-time.js
index 112b3539fb57..214f5c4259d5 100644
--- a/lighthouse-core/computed/metrics/lantern-cumulative-long-queuing-delay.js
+++ b/lighthouse-core/computed/metrics/lantern-total-blocking-time.js
@@ -13,7 +13,7 @@ const LanternInteractive = require('./lantern-interactive.js');
 
 /** @typedef {BaseNode.Node} Node */
 
-class LanternCumulativeLongQueuingDelay extends LanternMetric {
+class LanternTotalBlockingTime extends LanternMetric {
   /**
    * @return {LH.Gatherer.Simulation.MetricCoefficients}
    */
@@ -48,32 +48,32 @@ class LanternCumulativeLongQueuingDelay extends LanternMetric {
    */
   static getEstimateFromSimulation(simulation, extras) {
     // Intentionally use the opposite FCP estimate. A pessimistic FCP is higher than equal to an
-    // optimistic FCP, which means potentially more tasks are excluded from the
-    // CumulativeLongQueuingDelay computation. So a more pessimistic FCP gives a more optimistic
-    // CumulativeLongQueuingDelay for the same work.
+    // optimistic FCP, which means potentially more tasks are excluded from the Total Blocking Time
+    // computation. So a more pessimistic FCP gives a more optimistic Total Blocking Time for the
+    // same work.
     const fcpTimeInMs = extras.optimistic
       ? extras.fcpResult.pessimisticEstimate.timeInMs
       : extras.fcpResult.optimisticEstimate.timeInMs;
 
     // Similarly, we always have pessimistic TTI >= optimistic TTI. Therefore, picking optimistic
     // TTI means our window of interest is smaller and thus potentially more tasks are excluded from
-    // CumulativeLongQueuingDelay computation, yielding a lower (more optimistic)
-    // CumulativeLongQueuingDelay value for the same work.
+    // Total Blocking Time computation, yielding a lower (more optimistic) Total Blocking Time value
+    // for the same work.
     const interactiveTimeMs = extras.optimistic
       ? extras.interactiveResult.optimisticEstimate.timeInMs
       : extras.interactiveResult.pessimisticEstimate.timeInMs;
 
     // Require here to resolve circular dependency.
-    const CumulativeLongQueuingDelay = require('./cumulative-long-queuing-delay.js');
-    const minDurationMs = CumulativeLongQueuingDelay.LONG_QUEUING_DELAY_THRESHOLD;
+    const TotalBlockingTime = require('./total-blocking-time.js');
+    const minDurationMs = TotalBlockingTime.BLOCKING_TIME_THRESHOLD;
 
-    const events = LanternCumulativeLongQueuingDelay.getTopLevelEvents(
+    const events = LanternTotalBlockingTime.getTopLevelEvents(
       simulation.nodeTimings,
       minDurationMs
     );
 
     return {
-      timeInMs: CumulativeLongQueuingDelay.calculateSumOfLongQueuingDelay(
+      timeInMs: TotalBlockingTime.calculateSumOfBlockingTime(
         events,
         fcpTimeInMs,
         interactiveTimeMs
@@ -118,4 +118,4 @@ class LanternCumulativeLongQueuingDelay extends LanternMetric {
   }
 }
 
-module.exports = makeComputedArtifact(LanternCumulativeLongQueuingDelay);
+module.exports = makeComputedArtifact(LanternTotalBlockingTime);
diff --git a/lighthouse-core/computed/metrics/cumulative-long-queuing-delay.js b/lighthouse-core/computed/metrics/total-blocking-time.js
similarity index 51%
rename from lighthouse-core/computed/metrics/cumulative-long-queuing-delay.js
rename to lighthouse-core/computed/metrics/total-blocking-time.js
index 18aa99d1561a..d5419203d39d 100644
--- a/lighthouse-core/computed/metrics/cumulative-long-queuing-delay.js
+++ b/lighthouse-core/computed/metrics/total-blocking-time.js
@@ -9,28 +9,27 @@ const makeComputedArtifact = require('../computed-artifact.js');
 const ComputedMetric = require('./metric.js');
 const LHError = require('../../lib/lh-error.js');
 const TracingProcessor = require('../../lib/tracehouse/trace-processor.js');
-const LanternCumulativeLongQueuingDelay = require('./lantern-cumulative-long-queuing-delay.js');
+const LanternTotalBlockingTime = require('./lantern-total-blocking-time.js');
 const TimetoInteractive = require('./interactive.js');
 
 /**
- * @fileoverview This audit determines Cumulative Long Queuing Delay between FCP and TTI.
+ * @fileoverview This audit determines Total Blocking Time.
 
- * We define Long Queuing Delay Region as any time interval in the loading timeline where queuing
- * time for an input event would be longer than 50ms. For example, if there is a 110ms main thread
- * task, the first 60ms of it is Long Queuing Delay Region, because any input event occuring in
- * that region has to wait more than 50ms. Cumulative Long Queuing Delay is the sum of all Long
- * Queuing Delay Regions between First Contentful Paint and Interactive Time (TTI).
+ * We define Blocking Time as any time interval in the loading timeline where task length exceeds
+ * 50ms. For example, if there is a 110ms main thread task, the last 60ms of it is blocking time.
+ * Total Blocking Time is the sum of all Blocking Time between First Contentful Paint and
+ * Interactive Time (TTI).
  *
  * This is a new metric designed to accompany Time to Interactive. TTI is strict and does not
  * reflect incremental improvements to the site performance unless the improvement concerns the last
- * long task. Cumulative Long Queuing Delay on the other hand is designed to be much more responsive
+ * long task. Total Blocking Time on the other hand is designed to be much more responsive
  * to smaller improvements to main thread responsiveness.
  */
-class CumulativeLongQueuingDelay extends ComputedMetric {
+class TotalBlockingTime extends ComputedMetric {
   /**
    * @return {number}
    */
-  static get LONG_QUEUING_DELAY_THRESHOLD() {
+  static get BLOCKING_TIME_THRESHOLD() {
     return 50;
   }
   /**
@@ -39,50 +38,43 @@ class CumulativeLongQueuingDelay extends ComputedMetric {
    * @param {number} interactiveTimeMs
    * @return {number}
    */
-  static calculateSumOfLongQueuingDelay(topLevelEvents, fcpTimeInMs, interactiveTimeMs) {
+  static calculateSumOfBlockingTime(topLevelEvents, fcpTimeInMs, interactiveTimeMs) {
     if (interactiveTimeMs <= fcpTimeInMs) return 0;
 
-    const threshold = CumulativeLongQueuingDelay.LONG_QUEUING_DELAY_THRESHOLD;
-    const longQueuingDelayRegions = [];
-    // First identifying the long queuing delay regions.
+    const threshold = TotalBlockingTime.BLOCKING_TIME_THRESHOLD;
+    let sumBlockingTime = 0;
     for (const event of topLevelEvents) {
-      // If the task is less than the delay threshold, it contains no Long Queuing Delay Region.
+      // Early exit for small tasks, which should far outnumber long tasks.
       if (event.duration < threshold) continue;
-      // Otherwise, the duration of the task before the delay-threshold-sized interval at the end is
-      // considered Long Queuing Delay Region. Example assuming the threshold is 50ms:
-      //   [              250ms Task                   ]
-      //   |  Long Queuing Delay Region  |   Last 50ms |
-      //               200 ms
-      longQueuingDelayRegions.push({
-        start: event.start,
-        end: event.end - threshold,
-        duration: event.duration - threshold,
-      });
-    }
 
-    let sumLongQueuingDelay = 0;
-    for (const region of longQueuingDelayRegions) {
-      // We only want to add up the Long Queuing Delay regions that fall between FCP and TTI.
-      //
+      // We only want to consider tasks that fall between FCP and TTI.
       // FCP is picked as the lower bound because there is little risk of user input happening
       // before FCP so Long Queuing Qelay regions do not harm user experience. Developers should be
       // optimizing to reach FCP as fast as possible without having to worry about task lengths.
-      //
+      if (event.end < fcpTimeInMs) continue;
+
       // TTI is picked as the upper bound because we want a well defined end point so that the
       // metric does not rely on how long we trace.
-      if (region.end < fcpTimeInMs) continue;
-      if (region.start > interactiveTimeMs) continue;
+      if (event.start > interactiveTimeMs) continue;
 
-      // If a Long Queuing Delay Region spans the edges of our region of interest, we clip it to
-      // only include the part of the region that falls inside.
-      const clippedStart = Math.max(region.start, fcpTimeInMs);
-      const clippedEnd = Math.min(region.end, interactiveTimeMs);
-      const queuingDelayAfterClipping = clippedEnd - clippedStart;
+      // We first perform the clipping, and then calculate Blocking Region. So if we have a 150ms
+      // task [0, 150] and FCP happens midway at 50ms, we first clip the task to [50, 150], and then
+      // calculate the Blocking Region to be [100, 150]. The rational here is that tasks before FCP
+      // are unimportant, so we care whether the main thread is busy more than 50ms at a time only
+      // after FCP.
+      const clippedStart = Math.max(event.start, fcpTimeInMs);
+      const clippedEnd = Math.min(event.end, interactiveTimeMs);
+      const clippedDuration = clippedEnd - clippedStart;
+      if (clippedDuration < threshold) continue;
 
-      sumLongQueuingDelay += queuingDelayAfterClipping;
+      // The duration of the task beyond 50ms at the beginning is considered the Blocking Region.
+      // Example:
+      //   [              250ms Task                   ]
+      //   | First 50ms |   Blocking Region (200ms)    |
+      sumBlockingTime += (clippedDuration - threshold);
     }
 
-    return sumLongQueuingDelay;
+    return sumBlockingTime;
   }
 
   /**
@@ -91,7 +83,7 @@ class CumulativeLongQueuingDelay extends ComputedMetric {
    * @return {Promise<LH.Artifacts.LanternMetric>}
    */
   static computeSimulatedMetric(data, context) {
-    return LanternCumulativeLongQueuingDelay.request(data, context);
+    return LanternTotalBlockingTime.request(data, context);
   }
 
   /**
@@ -107,12 +99,10 @@ class CumulativeLongQueuingDelay extends ComputedMetric {
 
     const interactiveTimeMs = (await TimetoInteractive.request(data, context)).timing;
 
-    // Not using the start time argument of getMainThreadTopLevelEvents, because
-    // we need to clip the part of the task before the last 50ms properly.
     const events = TracingProcessor.getMainThreadTopLevelEvents(data.traceOfTab);
 
     return {
-      timing: CumulativeLongQueuingDelay.calculateSumOfLongQueuingDelay(
+      timing: TotalBlockingTime.calculateSumOfBlockingTime(
         events,
         firstContentfulPaint,
         interactiveTimeMs
@@ -121,4 +111,4 @@ class CumulativeLongQueuingDelay extends ComputedMetric {
   }
 }
 
-module.exports = makeComputedArtifact(CumulativeLongQueuingDelay);
+module.exports = makeComputedArtifact(TotalBlockingTime);
diff --git a/lighthouse-core/config/default-config.js b/lighthouse-core/config/default-config.js
index 76c74927394d..e772519784b4 100644
--- a/lighthouse-core/config/default-config.js
+++ b/lighthouse-core/config/default-config.js
@@ -171,7 +171,7 @@ const defaultConfig = {
     'screenshot-thumbnails',
     'final-screenshot',
     'metrics/estimated-input-latency',
-    'metrics/cumulative-long-queuing-delay',
+    'metrics/total-blocking-time',
     'metrics/max-potential-fid',
     'errors-in-console',
     'time-to-first-byte',
@@ -369,7 +369,7 @@ const defaultConfig = {
         {id: 'first-cpu-idle', weight: 2, group: 'metrics'},
         {id: 'max-potential-fid', weight: 0, group: 'metrics'},
         {id: 'estimated-input-latency', weight: 0}, // intentionally left out of metrics so it won't be displayed
-        {id: 'cumulative-long-queuing-delay', weight: 0}, // intentionally left out of metrics so it won't be displayed
+        {id: 'total-blocking-time', weight: 0}, // intentionally left out of metrics so it won't be displayed
         {id: 'render-blocking-resources', weight: 0, group: 'load-opportunities'},
         {id: 'uses-responsive-images', weight: 0, group: 'load-opportunities'},
         {id: 'offscreen-images', weight: 0, group: 'load-opportunities'},
diff --git a/lighthouse-core/lib/i18n/en-US.json b/lighthouse-core/lib/i18n/en-US.json
index c9c19ed8d629..896c9019ecbe 100644
--- a/lighthouse-core/lib/i18n/en-US.json
+++ b/lighthouse-core/lib/i18n/en-US.json
@@ -1039,6 +1039,14 @@
     "message": "Speed Index",
     "description": "The name of the metric that summarizes how quickly the page looked visually complete. The name of this metric is largely abstract and can be loosely translated. Shown to users as the label for the numeric metric value. Ideally fits within a ~40 character limit."
   },
+  "lighthouse-core/audits/metrics/total-blocking-time.js | description": {
+    "message": "Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.",
+    "description": "Description of the Total Blocking Time (TBT) metric, which calculates the total duration of blocking time for a web page. Blocking times are time periods when the page would be blocked (prevented) from responding to user input (clicks, taps, and keypresses will feel slow to respond). This is displayed within a tooltip when the user hovers on the metric name to see more. No character length limits."
+  },
+  "lighthouse-core/audits/metrics/total-blocking-time.js | title": {
+    "message": "Total Blocking Time",
+    "description": "The name of a metric that calculates the total duration of blocking time for a web page. Blocking times are time periods when the page would be blocked (prevented) from responding to user input (clicks, taps, and keypresses will feel slow to respond). Shown to users as the label for the numeric metric value. Ideally fits within a ~40 character limit."
+  },
   "lighthouse-core/audits/network-rtt.js | description": {
     "message": "Network round trip times (RTT) have a large impact on performance. If the RTT to an origin is high, it's an indication that servers closer to the user could improve performance. [Learn more](https://hpbn.co/primer-on-latency-and-bandwidth/).",
     "description": "Description of a Lighthouse audit that tells the user that a high network round trip time (RTT) can effect their website's performance because the server is physically far away from them thus making the RTT high. This is displayed after a user expands the section to see more. No character length limits. 'Learn More' becomes link text to additional documentation."
diff --git a/lighthouse-core/lib/i18n/locales/en-XL.json b/lighthouse-core/lib/i18n/locales/en-XL.json
index 41d675b7ea10..685a1f8331c0 100644
--- a/lighthouse-core/lib/i18n/locales/en-XL.json
+++ b/lighthouse-core/lib/i18n/locales/en-XL.json
@@ -779,6 +779,12 @@
   "lighthouse-core/audits/metrics/speed-index.js | title": {
     "message": "Ŝṕêéd̂ Ín̂d́êx́"
   },
+  "lighthouse-core/audits/metrics/total-blocking-time.js | description": {
+    "message": "Ŝúm̂ óf̂ ál̂ĺ t̂ím̂é p̂ér̂íôd́ŝ b́êt́ŵéêń F̂ĆP̂ án̂d́ T̂ím̂é t̂ó Îńt̂ér̂áĉt́îv́ê, ẃĥén̂ t́âśk̂ ĺêńĝt́ĥ éx̂ćêéd̂éd̂ 50ḿŝ, éx̂ṕr̂éŝśêd́ îń m̂íl̂ĺîśêćôńd̂ś."
+  },
+  "lighthouse-core/audits/metrics/total-blocking-time.js | title": {
+    "message": "T̂ót̂ál̂ B́l̂óĉḱîńĝ T́îḿê"
+  },
   "lighthouse-core/audits/network-rtt.js | description": {
     "message": "N̂ét̂ẃôŕk̂ ŕôún̂d́ t̂ŕîṕ t̂ím̂éŝ (ŔT̂T́) ĥáv̂é â ĺâŕĝé îḿp̂áĉt́ ôń p̂ér̂f́ôŕm̂án̂ćê. Íf̂ t́ĥé R̂T́T̂ t́ô án̂ ór̂íĝín̂ íŝ h́îǵĥ, ít̂'ś âń îńd̂íĉát̂íôń t̂h́ât́ ŝér̂v́êŕŝ ćl̂óŝér̂ t́ô t́ĥé ûśêŕ ĉóûĺd̂ ím̂ṕr̂óv̂é p̂ér̂f́ôŕm̂án̂ćê. [Ĺêár̂ń m̂ór̂é](ĥt́t̂ṕŝ://h́p̂b́n̂.ćô/ṕr̂ím̂ér̂-ón̂-ĺât́êńĉý-âńd̂-b́âńd̂ẃîd́t̂h́/)."
   },
diff --git a/lighthouse-core/test/audits/__snapshots__/metrics-test.js.snap b/lighthouse-core/test/audits/__snapshots__/metrics-test.js.snap
index 685d98388384..f79601e53938 100644
--- a/lighthouse-core/test/audits/__snapshots__/metrics-test.js.snap
+++ b/lighthouse-core/test/audits/__snapshots__/metrics-test.js.snap
@@ -2,7 +2,6 @@
 
 exports[`Performance: metrics evaluates valid input correctly 1`] = `
 Object {
-  "cumulativeLongQueuingDelay": 748,
   "estimatedInputLatency": 78,
   "estimatedInputLatencyTs": undefined,
   "firstCPUIdle": 3351,
@@ -35,5 +34,6 @@ Object {
   "observedTraceEndTs": 225426711887,
   "speedIndex": 1657,
   "speedIndexTs": undefined,
+  "totalBlockingTime": 726,
 }
 `;
diff --git a/lighthouse-core/test/audits/metrics/cumulative-long-queuing-delay-test.js b/lighthouse-core/test/audits/metrics/total-blocking-time-test.js
similarity index 71%
rename from lighthouse-core/test/audits/metrics/cumulative-long-queuing-delay-test.js
rename to lighthouse-core/test/audits/metrics/total-blocking-time-test.js
index 160322069358..1720753ee20a 100644
--- a/lighthouse-core/test/audits/metrics/cumulative-long-queuing-delay-test.js
+++ b/lighthouse-core/test/audits/metrics/total-blocking-time-test.js
@@ -5,25 +5,25 @@
  */
 'use strict';
 
-const cLQDAudit = require('../../../audits/metrics/cumulative-long-queuing-delay.js');
-const options = cLQDAudit.defaultOptions;
+const TBTAudit = require('../../../audits/metrics/total-blocking-time.js');
+const options = TBTAudit.defaultOptions;
 
 const pwaTrace = require('../../fixtures/traces/progressive-app-m60.json');
 
 function generateArtifactsWithTrace(trace) {
   return {
-    traces: {[cLQDAudit.DEFAULT_PASS]: trace},
-    devtoolsLogs: {[cLQDAudit.DEFAULT_PASS]: []},
+    traces: {[TBTAudit.DEFAULT_PASS]: trace},
+    devtoolsLogs: {[TBTAudit.DEFAULT_PASS]: []},
   };
 }
 /* eslint-env jest */
 
-describe('Performance: cumulative-long-queuing-delay audit', () => {
-  it('evaluates cumulative long queuing delay metric properly', async () => {
+describe('Performance: total-blocking-time audit', () => {
+  it('evaluates Total Blocking Time metric properly', async () => {
     const artifacts = generateArtifactsWithTrace(pwaTrace);
     const settings = {throttlingMethod: 'provided'};
     const context = {options, settings, computedCache: new Map()};
-    const output = await cLQDAudit.audit(artifacts, context);
+    const output = await TBTAudit.audit(artifacts, context);
 
     expect(output.numericValue).toBeCloseTo(48.3, 1);
     expect(output.score).toBe(1);
diff --git a/lighthouse-core/test/computed/metrics/cumulative-long-queuing-delay-test.js b/lighthouse-core/test/computed/metrics/cumulative-long-queuing-delay-test.js
deleted file mode 100644
index 8b02ada00c13..000000000000
--- a/lighthouse-core/test/computed/metrics/cumulative-long-queuing-delay-test.js
+++ /dev/null
@@ -1,115 +0,0 @@
-/**
- * @license Copyright 2019 Google Inc. All Rights Reserved.
- * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
- * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
- */
-'use strict';
-
-const CumulativeLongQueuingDelay =
-    require('../../../computed/metrics/cumulative-long-queuing-delay.js');
-const trace = require('../../fixtures/traces/progressive-app-m60.json');
-const devtoolsLog = require('../../fixtures/traces/progressive-app-m60.devtools.log.json');
-
-/* eslint-env jest */
-
-describe('Metrics: CumulativeLongQueuingDelay', () => {
-  it('should compute a simulated value', async () => {
-    const settings = {throttlingMethod: 'simulate'};
-    const context = {settings, computedCache: new Map()};
-    const result = await CumulativeLongQueuingDelay.request(
-      {trace, devtoolsLog, settings},
-      context
-    );
-
-    expect({
-      timing: Math.round(result.timing),
-      optimistic: Math.round(result.optimisticEstimate.timeInMs),
-      pessimistic: Math.round(result.pessimisticEstimate.timeInMs),
-    }).toMatchInlineSnapshot(`
-Object {
-  "optimistic": 719,
-  "pessimistic": 777,
-  "timing": 748,
-}
-`);
-  });
-
-  it('should compute an observed value', async () => {
-    const settings = {throttlingMethod: 'provided'};
-    const context = {settings, computedCache: new Map()};
-    const result = await CumulativeLongQueuingDelay.request(
-      {trace, devtoolsLog, settings},
-      context
-    );
-    expect(result.timing).toBeCloseTo(48.3, 1);
-  });
-
-  describe('#calculateSumOfLongQueuingDelay', () => {
-    it('reports 0 when no task is longer than 50ms', () => {
-      const events = [
-        {start: 1000, end: 1050, duration: 50},
-        {start: 2000, end: 2010, duration: 10},
-      ];
-
-      const fcpTimeMs = 500;
-      const interactiveTimeMs = 4000;
-
-      expect(CumulativeLongQueuingDelay.calculateSumOfLongQueuingDelay(
-        events,
-        fcpTimeMs,
-        interactiveTimeMs
-      )).toBe(0);
-    });
-
-    it('only looks at tasks within FMP and TTI', () => {
-      const events = [
-        {start: 1000, end: 1060, duration: 60},
-        {start: 2000, end: 2100, duration: 100},
-        {start: 2300, end: 2450, duration: 150},
-        {start: 2600, end: 2800, duration: 200},
-      ];
-
-      const fcpTimeMs = 1500;
-      const interactiveTimeMs = 2500;
-
-      expect(CumulativeLongQueuingDelay.calculateSumOfLongQueuingDelay(
-        events,
-        fcpTimeMs,
-        interactiveTimeMs
-      )).toBe(150);
-    });
-
-    it('clips queuing delay regions properly', () => {
-      const fcpTimeMs = 1050;
-      const interactiveTimeMs = 2050;
-
-      const events = [
-        {start: 1000, end: 1110, duration: 110}, // Contributes 10ms.
-        {start: 2000, end: 2200, duration: 200}, // Contributes 50ms.
-      ];
-
-      expect(CumulativeLongQueuingDelay.calculateSumOfLongQueuingDelay(
-        events,
-        fcpTimeMs,
-        interactiveTimeMs
-      )).toBe(60);
-    });
-
-    // This can happen in the lantern metric case, where we use the optimistic
-    // TTI and pessimistic FCP.
-    it('returns 0 if interactiveTime is earlier than FCP', () => {
-      const fcpTimeMs = 2050;
-      const interactiveTimeMs = 1050;
-
-      const events = [
-        {start: 500, end: 3000, duration: 2500},
-      ];
-
-      expect(CumulativeLongQueuingDelay.calculateSumOfLongQueuingDelay(
-        events,
-        fcpTimeMs,
-        interactiveTimeMs
-      )).toBe(0);
-    });
-  });
-});
diff --git a/lighthouse-core/test/computed/metrics/total-blocking-time-test.js b/lighthouse-core/test/computed/metrics/total-blocking-time-test.js
new file mode 100644
index 000000000000..15e9fcff59e2
--- /dev/null
+++ b/lighthouse-core/test/computed/metrics/total-blocking-time-test.js
@@ -0,0 +1,148 @@
+/**
+ * @license Copyright 2019 Google Inc. All Rights Reserved.
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
+ */
+'use strict';
+
+const TotalBlockingTime = require('../../../computed/metrics/total-blocking-time.js');
+const trace = require('../../fixtures/traces/progressive-app-m60.json');
+const devtoolsLog = require('../../fixtures/traces/progressive-app-m60.devtools.log.json');
+
+/* eslint-env jest */
+
+describe('Metrics: TotalBlockingTime', () => {
+  it('should compute a simulated value', async () => {
+    const settings = {throttlingMethod: 'simulate'};
+    const context = {settings, computedCache: new Map()};
+    const result = await TotalBlockingTime.request({trace, devtoolsLog, settings}, context);
+
+    expect({
+      timing: Math.round(result.timing),
+      optimistic: Math.round(result.optimisticEstimate.timeInMs),
+      pessimistic: Math.round(result.pessimisticEstimate.timeInMs),
+    }).toMatchInlineSnapshot(`
+Object {
+  "optimistic": 676,
+  "pessimistic": 777,
+  "timing": 726,
+}
+`);
+  });
+
+  it('should compute an observed value', async () => {
+    const settings = {throttlingMethod: 'provided'};
+    const context = {settings, computedCache: new Map()};
+    const result = await TotalBlockingTime.request({trace, devtoolsLog, settings}, context);
+    expect(result.timing).toBeCloseTo(48.3, 1);
+  });
+
+  describe('#calculateSumOfBlockingTime', () => {
+    it('reports 0 when no task is longer than 50ms', () => {
+      const events = [
+        {start: 1000, end: 1050, duration: 50},
+        {start: 2000, end: 2010, duration: 10},
+      ];
+
+      const fcpTimeMs = 500;
+      const interactiveTimeMs = 4000;
+
+      expect(
+        TotalBlockingTime.calculateSumOfBlockingTime(events, fcpTimeMs, interactiveTimeMs)
+      ).toBe(0);
+    });
+
+    it('only looks at tasks within FCP and TTI', () => {
+      const events = [
+        {start: 1000, end: 1060, duration: 60},
+        {start: 2000, end: 2100, duration: 100},
+        {start: 2300, end: 2450, duration: 150},
+        {start: 2600, end: 2800, duration: 200},
+      ];
+
+      const fcpTimeMs = 1500;
+      const interactiveTimeMs = 2500;
+
+      expect(
+        TotalBlockingTime.calculateSumOfBlockingTime(events, fcpTimeMs, interactiveTimeMs)
+      ).toBe(150);
+    });
+
+    it('clips before finding blocking regions', () => {
+      const fcpTimeMs = 150;
+      const interactiveTimeMs = 300;
+
+      const events = [
+        // The clipping is done first, so the task becomes [150, 200] after clipping and contributes
+        // 0ms of blocking time. This is in contrast to first calculating the blocking region ([100,
+        // 200]) and then clipping at FCP (150ms), which yields 50ms blocking time.
+        {start: 50, end: 200, duration: 150},
+        // Similarly, the task is first clipped above to be [240, 300], and then contributes 10ms
+        // blocking time.
+        {start: 240, end: 460, duration: 120},
+      ];
+
+      expect(
+        TotalBlockingTime.calculateSumOfBlockingTime(events, fcpTimeMs, interactiveTimeMs)
+      ).toBe(10); // 0ms + 10ms.
+    });
+
+    // TTI can happen in the middle of a task, for example, if TTI is at FMP which occurs as part
+    // of a larger task, or in the lantern case where we use estimate TTI using a different graph
+    // from the one used to estimate TBT.
+    it('clips properly if TTI falls in the middle of a task', () => {
+      const fcpTimeMs = 1000;
+      const interactiveTimeMs = 2000;
+
+      expect(TotalBlockingTime.calculateSumOfBlockingTime(
+        [{start: 1951, end: 2100, duration: 149}],
+        fcpTimeMs,
+        interactiveTimeMs
+      )).toBe(0); // Duration after clipping is 49, which is < 50.
+      expect(TotalBlockingTime.calculateSumOfBlockingTime(
+        [{start: 1950, end: 2100, duration: 150}],
+        fcpTimeMs,
+        interactiveTimeMs
+      )).toBe(0); // Duration after clipping is 50, so time after 50ms is 0ms.
+      expect(TotalBlockingTime.calculateSumOfBlockingTime(
+        [{start: 1949, end: 2100, duration: 151}],
+        fcpTimeMs,
+        interactiveTimeMs
+      )).toBe(1); // Duration after clipping is 51, so time after 50ms is 1ms.
+    });
+
+    it('clips properly if FCP falls in the middle of a task', () => {
+      const fcpTimeMs = 1000;
+      const interactiveTimeMs = 2000;
+
+      expect(TotalBlockingTime.calculateSumOfBlockingTime(
+        [{start: 900, end: 1049, duration: 149}],
+        fcpTimeMs,
+        interactiveTimeMs
+      )).toBe(0); // Duration after clipping is 49, which is < 50.
+      expect(TotalBlockingTime.calculateSumOfBlockingTime(
+        [{start: 900, end: 1050, duration: 150}],
+        fcpTimeMs,
+        interactiveTimeMs
+      )).toBe(0); // Duration after clipping is 50, so time after 50ms is 0ms.
+      expect(TotalBlockingTime.calculateSumOfBlockingTime(
+        [{start: 900, end: 1051, duration: 151}],
+        fcpTimeMs,
+        interactiveTimeMs
+      )).toBe(1); // Duration after clipping is 51, so time after 50ms is 1ms.
+    });
+
+    // This can happen in the lantern metric case, where we use the optimistic
+    // TTI and pessimistic FCP.
+    it('returns 0 if interactiveTime is earlier than FCP', () => {
+      const fcpTimeMs = 2050;
+      const interactiveTimeMs = 1050;
+
+      const events = [{start: 500, end: 3000, duration: 2500}];
+
+      expect(
+        TotalBlockingTime.calculateSumOfBlockingTime(events, fcpTimeMs, interactiveTimeMs)
+      ).toBe(0);
+    });
+  });
+});
diff --git a/lighthouse-core/test/results/sample_v2.json b/lighthouse-core/test/results/sample_v2.json
index 082ce4041663..a68818bf536a 100644
--- a/lighthouse-core/test/results/sample_v2.json
+++ b/lighthouse-core/test/results/sample_v2.json
@@ -191,10 +191,10 @@
       "numericValue": 16,
       "displayValue": "20 ms"
     },
-    "cumulative-long-queuing-delay": {
-      "id": "cumulative-long-queuing-delay",
-      "title": "Cumulative Long Queuing Delay",
-      "description": "[Experimental metric] Total time period between FCP and Time to Interactive during which queuing time for any input event would be higher than 50ms.",
+    "total-blocking-time": {
+      "id": "total-blocking-time",
+      "title": "Total Blocking Time",
+      "description": "Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.",
       "score": 1,
       "scoreDisplayMode": "numeric",
       "numericValue": 116.79800000000023,
@@ -1258,7 +1258,7 @@
             "speedIndex": 4417,
             "speedIndexTs": 185607736912,
             "estimatedInputLatency": 16,
-            "cumulativeLongQueuingDelay": 117,
+            "totalBlockingTime": 117,
             "observedNavigationStart": 0,
             "observedNavigationStartTs": 185603319912,
             "observedFirstPaint": 3969,
@@ -3417,7 +3417,7 @@
           "weight": 0
         },
         {
-          "id": "cumulative-long-queuing-delay",
+          "id": "total-blocking-time",
           "weight": 0
         },
         {
@@ -4283,13 +4283,13 @@
       },
       {
         "startTime": 0,
-        "name": "lh:audit:cumulative-long-queuing-delay",
+        "name": "lh:audit:total-blocking-time",
         "duration": 100,
         "entryType": "measure"
       },
       {
         "startTime": 0,
-        "name": "lh:computed:CumulativeLongQueuingDelay",
+        "name": "lh:computed:TotalBlockingTime",
         "duration": 100,
         "entryType": "measure"
       },
@@ -5215,6 +5215,12 @@
           },
           "path": "audits[estimated-input-latency].displayValue"
         },
+        {
+          "values": {
+            "timeInMs": 116.79800000000023
+          },
+          "path": "audits[total-blocking-time].displayValue"
+        },
         {
           "values": {
             "timeInMs": 122.537
@@ -5234,6 +5240,12 @@
           "path": "audits[network-server-latency].displayValue"
         }
       ],
+      "lighthouse-core/audits/metrics/total-blocking-time.js | title": [
+        "audits[total-blocking-time].title"
+      ],
+      "lighthouse-core/audits/metrics/total-blocking-time.js | description": [
+        "audits[total-blocking-time].description"
+      ],
       "lighthouse-core/audits/metrics/max-potential-fid.js | title": [
         "audits[max-potential-fid].title"
       ],
diff --git a/proto/sample_v2_round_trip.json b/proto/sample_v2_round_trip.json
index 4ad9bc15d3bd..63b760193ea7 100644
--- a/proto/sample_v2_round_trip.json
+++ b/proto/sample_v2_round_trip.json
@@ -377,15 +377,6 @@
             "scoreDisplayMode": "informative",
             "title": "Minimize Critical Requests Depth"
         },
-        "cumulative-long-queuing-delay": {
-            "description": "[Experimental metric] Total time period between FCP and Time to Interactive during which queuing time for any input event would be higher than 50ms.",
-            "displayValue": "120\u00a0ms",
-            "id": "cumulative-long-queuing-delay",
-            "numericValue": 116.79800000000023,
-            "score": 1.0,
-            "scoreDisplayMode": "numeric",
-            "title": "Cumulative Long Queuing Delay"
-        },
         "custom-controls-labels": {
             "description": "Custom interactive controls have associated labels, provided by aria-label or aria-labelledby. [Learn more](https://developers.google.com/web/fundamentals/accessibility/how-to-review#try_it_with_a_screen_reader).",
             "id": "custom-controls-labels",
@@ -1494,7 +1485,6 @@
             "details": {
                 "items": [
                     {
-                        "cumulativeLongQueuingDelay": 117.0,
                         "estimatedInputLatency": 16.0,
                         "firstCPUIdle": 4927.0,
                         "firstCPUIdleTs": 185608247190.0,
@@ -1525,7 +1515,8 @@
                         "observedTraceEnd": 10281.0,
                         "observedTraceEndTs": 185613601189.0,
                         "speedIndex": 4417.0,
-                        "speedIndexTs": 185607736912.0
+                        "speedIndexTs": 185607736912.0,
+                        "totalBlockingTime": 117.0
                     }
                 ],
                 "type": "debugdata"
@@ -2629,6 +2620,15 @@
             "scoreDisplayMode": "binary",
             "title": "Server response times are low (TTFB)"
         },
+        "total-blocking-time": {
+            "description": "Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.",
+            "displayValue": "120\u00a0ms",
+            "id": "total-blocking-time",
+            "numericValue": 116.79800000000023,
+            "score": 1.0,
+            "scoreDisplayMode": "numeric",
+            "title": "Total Blocking Time"
+        },
         "total-byte-weight": {
             "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/network-payloads).",
             "details": {
@@ -3546,7 +3546,7 @@
                     "weight": 0.0
                 },
                 {
-                    "id": "cumulative-long-queuing-delay",
+                    "id": "total-blocking-time",
                     "weight": 0.0
                 },
                 {
@@ -4180,13 +4180,13 @@
             {
                 "duration": 100.0,
                 "entryType": "measure",
-                "name": "lh:audit:cumulative-long-queuing-delay",
+                "name": "lh:audit:total-blocking-time",
                 "startTime": 0.0
             },
             {
                 "duration": 100.0,
                 "entryType": "measure",
-                "name": "lh:computed:CumulativeLongQueuingDelay",
+                "name": "lh:computed:TotalBlockingTime",
                 "startTime": 0.0
             },
             {

From e2afa0807820751e530b91088d149cdb70ff74b9 Mon Sep 17 00:00:00 2001
From: Brendan Kenny <bckenny@gmail.com>
Date: Tue, 23 Jul 2019 17:41:38 -0700
Subject: [PATCH 106/110] tests: relax contrast font size expectation (#9441)

---
 lighthouse-cli/test/smokehouse/a11y/expectations.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lighthouse-cli/test/smokehouse/a11y/expectations.js b/lighthouse-cli/test/smokehouse/a11y/expectations.js
index 214b4fee2170..d8692e30ef3e 100644
--- a/lighthouse-cli/test/smokehouse/a11y/expectations.js
+++ b/lighthouse-cli/test/smokehouse/a11y/expectations.js
@@ -153,7 +153,8 @@ module.exports = [
                   'type': 'node',
                   'selector': '#color-contrast',
                   'snippet': '<div id="color-contrast" style="background-color: red; color: pink;">\n          Hello\n      </div>',
-                  'explanation': 'Fix any of the following:\n  Element has insufficient color contrast of 2.59 (foreground color: #ffc0cb, background color: #ff0000, font size: 28.5pt, font weight: normal). Expected contrast ratio of 3:1',
+                  // Default font size is different depending on the platform (e.g. 28.5 on travis, 30.0 on Mac), so use \d\d\.\d.
+                  'explanation': /^Fix any of the following:\n {2}Element has insufficient color contrast of 2\.59 \(foreground color: #ffc0cb, background color: #ff0000, font size: \d\d\.\dpt, font weight: normal\). Expected contrast ratio of 3:1$/,
                   'nodeLabel': 'Hello',
                 },
               },

From af4b2d551c320e6eacc34dae1dbd9a14d0d31cd6 Mon Sep 17 00:00:00 2001
From: Connor Clark <cjamcl@google.com>
Date: Tue, 23 Jul 2019 17:41:57 -0700
Subject: [PATCH 107/110] docs: link to good first issues (#9440)

---
 CONTRIBUTING.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 7b4d425a05b8..b956c8a72f71 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -2,6 +2,10 @@
 
 We'd love your help! This doc covers how to become a contributor and submit code to the project.
 
+## Where can I start?
+
+We tag issues that are good candidates for those new to the code with [`good first issue`](https://github.com/GoogleChrome/lighthouse/issues?q=is%3Aissue+is%3Aopen+sort%3Aupdated-desc+label%3A%22good+first+issue%22). We recommend you start there!
+
 ## Follow the coding style
 
 The `.eslintrc` file defines all. We use [JSDoc](http://usejsdoc.org/) with [TypeScript](https://github.com/Microsoft/TypeScript/wiki/JSDoc-support-in-JavaScript). Annotations are encouraged for all contributions.

From fc3dc2ec360532b552f5224ac767d066f01ecac0 Mon Sep 17 00:00:00 2001
From: Paul Irish <paulirish@google.com>
Date: Tue, 23 Jul 2019 17:50:46 -0700
Subject: [PATCH 108/110] report: fix audit explanation rendering (#9439)

---
 lighthouse-core/audits/seo/font-size.js           | 5 -----
 lighthouse-core/lib/i18n/en-US.json               | 4 ----
 lighthouse-core/lib/i18n/locales/en-XL.json       | 3 ---
 lighthouse-core/report/html/report-styles.css     | 3 ++-
 lighthouse-core/test/audits/seo/font-size-test.js | 1 -
 5 files changed, 2 insertions(+), 14 deletions(-)

diff --git a/lighthouse-core/audits/seo/font-size.js b/lighthouse-core/audits/seo/font-size.js
index 3e36b958865d..c3dca56bd772 100644
--- a/lighthouse-core/audits/seo/font-size.js
+++ b/lighthouse-core/audits/seo/font-size.js
@@ -25,8 +25,6 @@ const UIStrings = {
   /** Explanatory message stating that there was a failure in an audit caused by a missing page viewport meta tag configuration. "viewport" and "meta" are HTML terms and should not be translated. */
   explanationViewport: 'Text is illegible because there\'s no viewport meta tag optimized ' +
     'for mobile screens.',
-  /** Explanatory message stating that there was a failure in an audit caused by a certain percentage of the text on the page being too small. "decimalProportion" will be replaced by a percentage between 0 and 100%. */
-  explanation: '{decimalProportion, number, extendedPercent} of text is too small.',
   /** Explanatory message stating that there was a failure in an audit caused by a certain percentage of the text on the page being too small, based on a sample size of text that was less than 100% of the text on the page. "decimalProportion" will be replaced by a percentage between 0 and 100%. */
   explanationWithDisclaimer: '{decimalProportion, number, extendedPercent} of text is too ' +
     'small (based on {decimalProportionVisited, number, extendedPercent} sample).',
@@ -328,9 +326,6 @@ class FontSize extends Audit {
             decimalProportion: percentageOfFailingText,
             decimalProportionVisited: percentageOfVisitedText,
           });
-      } else {
-        explanation = str_(UIStrings.explanation,
-          {decimalProportion: percentageOfFailingText});
       }
     }
 
diff --git a/lighthouse-core/lib/i18n/en-US.json b/lighthouse-core/lib/i18n/en-US.json
index 896c9019ecbe..18aac00f8c27 100644
--- a/lighthouse-core/lib/i18n/en-US.json
+++ b/lighthouse-core/lib/i18n/en-US.json
@@ -1143,10 +1143,6 @@
     "message": "{decimalProportion, number, extendedPercent} legible text",
     "description": "Label for the audit identifying font sizes that are too small."
   },
-  "lighthouse-core/audits/seo/font-size.js | explanation": {
-    "message": "{decimalProportion, number, extendedPercent} of text is too small.",
-    "description": "Explanatory message stating that there was a failure in an audit caused by a certain percentage of the text on the page being too small. \"decimalProportion\" will be replaced by a percentage between 0 and 100%."
-  },
   "lighthouse-core/audits/seo/font-size.js | explanationViewport": {
     "message": "Text is illegible because there's no viewport meta tag optimized for mobile screens.",
     "description": "Explanatory message stating that there was a failure in an audit caused by a missing page viewport meta tag configuration. \"viewport\" and \"meta\" are HTML terms and should not be translated."
diff --git a/lighthouse-core/lib/i18n/locales/en-XL.json b/lighthouse-core/lib/i18n/locales/en-XL.json
index 685a1f8331c0..9b7b75729719 100644
--- a/lighthouse-core/lib/i18n/locales/en-XL.json
+++ b/lighthouse-core/lib/i18n/locales/en-XL.json
@@ -857,9 +857,6 @@
   "lighthouse-core/audits/seo/font-size.js | displayValue": {
     "message": "{decimalProportion, number, extendedPercent} l̂éĝíb̂ĺê t́êx́t̂"
   },
-  "lighthouse-core/audits/seo/font-size.js | explanation": {
-    "message": "{decimalProportion, number, extendedPercent} ôf́ t̂éx̂t́ îś t̂óô śm̂ál̂ĺ."
-  },
   "lighthouse-core/audits/seo/font-size.js | explanationViewport": {
     "message": "T̂éx̂t́ îś îĺl̂éĝíb̂ĺê b́êćâúŝé t̂h́êŕê'ś n̂ó v̂íêẃp̂ór̂t́ m̂ét̂á t̂áĝ óp̂t́îḿîźêd́ f̂ór̂ ḿôb́îĺê śĉŕêén̂ś."
   },
diff --git a/lighthouse-core/report/html/report-styles.css b/lighthouse-core/report/html/report-styles.css
index 5e3d387ed675..880c39b1659d 100644
--- a/lighthouse-core/report/html/report-styles.css
+++ b/lighthouse-core/report/html/report-styles.css
@@ -951,8 +951,9 @@
 }
 
 .lh-audit-explanation {
-  margin: var(--audit-padding-vertical) 0 calc(var(--audit-padding-vertical) / 2);
+  margin: var(--audit-padding-vertical) 0 calc(var(--audit-padding-vertical) / 2) var(--audit-margin-horizontal);
   line-height: var(--audit-explanation-line-height);
+  display: inline-block;
 }
 
 .lh-audit--fail .lh-audit-explanation {
diff --git a/lighthouse-core/test/audits/seo/font-size-test.js b/lighthouse-core/test/audits/seo/font-size-test.js
index ceb715c2df98..2362661530f7 100644
--- a/lighthouse-core/test/audits/seo/font-size-test.js
+++ b/lighthouse-core/test/audits/seo/font-size-test.js
@@ -54,7 +54,6 @@ describe('SEO: Font size audit', () => {
 
     const auditResult = await FontSizeAudit.audit(artifacts, getFakeContext());
     assert.equal(auditResult.score, 0);
-    expect(auditResult.explanation).toBeDisplayString('41% of text is too small.');
     expect(auditResult.displayValue).toBeDisplayString('59% legible text');
   });
 

From 82835eb6e4bcece5ac1ce9c575a8d2d9ecd995d1 Mon Sep 17 00:00:00 2001
From: Connor Clark <cjamcl@google.com>
Date: Wed, 24 Jul 2019 08:08:54 -0700
Subject: [PATCH 109/110] clients(lightrider): serialize errors in artifacts
 (#9410)

---
 clients/lightrider/lightrider-entry.js | 18 ++++++++++++-----
 clients/test/lightrider-entry-test.js  | 27 ++++++++++++++++++++++++++
 lighthouse-core/lib/asset-saver.js     |  1 +
 3 files changed, 41 insertions(+), 5 deletions(-)

diff --git a/clients/lightrider/lightrider-entry.js b/clients/lightrider/lightrider-entry.js
index 49cfa55610ea..e7ea5a64d24f 100644
--- a/clients/lightrider/lightrider-entry.js
+++ b/clients/lightrider/lightrider-entry.js
@@ -9,6 +9,7 @@ const lighthouse = require('../../lighthouse-core/index.js');
 
 const LHError = require('../../lighthouse-core/lib/lh-error.js');
 const preprocessor = require('../../lighthouse-core/lib/proto-preprocessor.js');
+const assetSaver = require('../../lighthouse-core/lib/asset-saver.js');
 
 /** @type {Record<'mobile'|'desktop', LH.Config.Json>} */
 const LR_PRESETS = {
@@ -54,15 +55,22 @@ async function runLighthouseInLR(connection, url, flags, lrOpts) {
     const runnerResult = await lighthouse(url, flags, config, connection);
     if (!runnerResult) throw new Error('Lighthouse finished without a runnerResult');
 
+    // pre process the LHR for proto
+    const preprocessedLhr = preprocessor.processForProto(runnerResult.lhr);
+
     // When LR is called with |internal: {keep_raw_response: true, save_lighthouse_assets: true}|,
-    // this code will log artifacts to raw_response.artifacts.
+    // we log artifacts to raw_response.artifacts.
     if (logAssets) {
-      // @ts-ignore - piggyback the artifacts on the LHR.
-      runnerResult.lhr.artifacts = runnerResult.artifacts;
+      // Properly serialize artifact errors.
+      const artifactsJson = JSON.stringify(runnerResult.artifacts, assetSaver.stringifyReplacer);
+
+      return JSON.stringify({
+        ...preprocessedLhr,
+        artifacts: JSON.parse(artifactsJson),
+      });
     }
 
-    // pre process the LHR for proto
-    return JSON.stringify(preprocessor.processForProto(runnerResult.lhr));
+    return JSON.stringify(preprocessedLhr);
   } catch (err) {
     // If an error ruined the entire lighthouse run, attempt to return a meaningful error.
     let runtimeError;
diff --git a/clients/test/lightrider-entry-test.js b/clients/test/lightrider-entry-test.js
index 7042d47fde2a..a81c526beaa1 100644
--- a/clients/test/lightrider-entry-test.js
+++ b/clients/test/lightrider-entry-test.js
@@ -118,5 +118,32 @@ describe('lightrider-entry', () => {
 
       runStub.mockRestore();
     });
+
+    it('exposes artifacts when logAssets is true', async () => {
+      const originalRun = Runner.run;
+      Runner.run = jest.fn().mockReturnValue(Promise.resolve({
+        lhr: {},
+        artifacts: {
+          Artifact: new Error('some error'),
+        },
+      }));
+      afterEach(() => {
+        Runner.run = originalRun;
+      });
+
+      const mockConnection = {};
+      const url = 'https://example.com';
+      const lrFlags = {
+        logAssets: true,
+      };
+      const resultJson = await lhBackground.runLighthouseInLR(mockConnection, url, {}, lrFlags);
+      const result = JSON.parse(resultJson);
+      expect(result.artifacts).toMatchObject({
+        Artifact: {
+          sentinel: '__ErrorSentinel',
+          message: 'some error',
+        },
+      });
+    });
   });
 });
diff --git a/lighthouse-core/lib/asset-saver.js b/lighthouse-core/lib/asset-saver.js
index 8ff4c65ba69a..5490bcfae193 100644
--- a/lighthouse-core/lib/asset-saver.js
+++ b/lighthouse-core/lib/asset-saver.js
@@ -288,4 +288,5 @@ module.exports = {
   prepareAssets,
   saveTrace,
   saveLanternNetworkData,
+  stringifyReplacer,
 };

From ba1e1591dd83fe411f058df31a994df76796f646 Mon Sep 17 00:00:00 2001
From: Brendan Kenny <bckenny@gmail.com>
Date: Wed, 24 Jul 2019 12:08:42 -0700
Subject: [PATCH 110/110] 5.2.0 (#9442)

---
 changelog.md                                | 141 ++++++++++++++++++++
 clients/extension/manifest.json             |   2 +-
 lighthouse-core/test/results/sample_v2.json |   2 +-
 package.json                                |   2 +-
 proto/sample_v2_round_trip.json             |   2 +-
 5 files changed, 145 insertions(+), 4 deletions(-)

diff --git a/changelog.md b/changelog.md
index 54bb0c4403fa..883fec4e2969 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,3 +1,144 @@
+ <a name="5.2.0"></a>
+# 5.2.0 (2019-07-24)
+
+Expected DevTools release in Chrome 77 ([September 2019](https://chromestatus.com/features/schedule))
+
+## New contributors!
+Thanks to @AngeloGulina, @jamesgeorge007, @johnemau, @kaushikchaubal, @mitchellsimoens, @NickolasBenakis, @noelyoo, @PatOnTheBack, @rishichawda, and @Remexllee for their first contributions!
+
+## New Audits
+
+* `Third-Party Usage`, a new performance diagnostic that shows a breakdown of third-party resources in the page and the time/bytes needed to load them ([#9067](https://github.com/googlechrome/lighthouse/pull/9067))
+* `Total Blocking Time` an experimental new metric that serves as a companion to TTI to help prioritize unblocking the main thread. Since it is currently experimental, it is unscored and appears only in the raw LHR JSON, not in the HTML report. ([#8975](https://github.com/googlechrome/lighthouse/pull/8975), [#9409](https://github.com/googlechrome/lighthouse/pull/9409))
+
+## Notable changes
+* **tracehouse**: performance trace processing has been moved to its own directory in `lib/tracehouse/` to serve as a more standalone library ([9f80524](https://github.com/googlechrome/lighthouse/commit/9f80524), [1af2edd](https://github.com/googlechrome/lighthouse/commit/1af2edd), [7ba6776](https://github.com/googlechrome/lighthouse/commit/7ba6776), [ddff3d6](https://github.com/googlechrome/lighthouse/commit/ddff3d6))
+* certificate security errors are no longer a fatal Lighthouse error, though the Chrome error page will still return few results in the report by default. See [the docs](https://github.com/GoogleChrome/lighthouse/tree/82835eb6e4bcece5ac1ce9c575a8d2d9ecd995d1/docs#testing-on-a-site-with-an-untrusted-certificate) for testing a page in this situation. ([#8865](https://github.com/googlechrome/lighthouse/pull/8865))
+
+## Core
+
+* support saving and loading errors in artifacts ([#9397](https://github.com/googlechrome/lighthouse/pull/9397))
+* config: assert all audit `requiredArtifacts` will be gathered ([#9284](https://github.com/googlechrome/lighthouse/pull/9284))
+* `domstats`: support an empty html body ([#9340](https://github.com/googlechrome/lighthouse/pull/9340))
+* `font-display`: limit false positives ([#9148](https://github.com/googlechrome/lighthouse/pull/9148))
+* `font-size`: calculate accurate line/column for styles ([#9356](https://github.com/googlechrome/lighthouse/pull/9356))
+* `font-size`: comment why source 'Other' occurs ([#9363](https://github.com/googlechrome/lighthouse/pull/9363))
+* localize invalid-URL error message ([#9334](https://github.com/googlechrome/lighthouse/pull/9334))
+* `gather-runner`: add `PageLoadError` base artifact ([#9236](https://github.com/googlechrome/lighthouse/pull/9236))
+* `gather-runner`: don't save trace on pass with `pageLoadError` ([#9198](https://github.com/googlechrome/lighthouse/pull/9198))
+* `gather-runner`: treat Chrome interstitials as `pageLoadErrors` ([#9176](https://github.com/googlechrome/lighthouse/pull/9176))
+* `gather-runner`: always reset scroll position ([#9060](https://github.com/googlechrome/lighthouse/pull/9060))
+* `gather-runner`: convert `PAGE_HUNG` to non-fatal `runtimeError` ([#9121](https://github.com/googlechrome/lighthouse/pull/9121))
+* `manifest-parser`: handle blob manifests ([#9088](https://github.com/googlechrome/lighthouse/pull/9088))
+* `page-functions`: don't try to clone a ShadowRoot ([#9079](https://github.com/googlechrome/lighthouse/pull/9079))
+* perf: speed up `tap-target`'s `isVisible()` ([#9056](https://github.com/googlechrome/lighthouse/pull/9056))
+* tracehouse: allow missing FCP ([#9174](https://github.com/googlechrome/lighthouse/pull/9174))
+
+## CLI
+* accept flags from a file ([#9109](https://github.com/googlechrome/lighthouse/pull/9109))
+
+## Clients
+
+* devtools: audits2->audits and defer reading resources ([#8985](https://github.com/googlechrome/lighthouse/pull/8985), [#9344](https://github.com/googlechrome/lighthouse/pull/9344))
+* devtools: unset overflow in print ([#9274](https://github.com/googlechrome/lighthouse/pull/9274))
+* lightrider: update `processForProto` method signature, `string` -> `LH.Result` ([#9016](https://github.com/googlechrome/lighthouse/pull/9016))
+* lightrider: serialize errors in artifacts ([#9410](https://github.com/googlechrome/lighthouse/pull/9410))
+
+## Deps
+
+* update `axe-core` to 3.3.0 ([#9343](https://github.com/googlechrome/lighthouse/pull/9343))
+* update `typescript` to 3.5.3 ([#9357](https://github.com/googlechrome/lighthouse/pull/9357))
+* update `chrome-launcher` to 0.11.1 ([#9339](https://github.com/googlechrome/lighthouse/pull/9339))
+* `intl`: move from devDep to dep ([#9309](https://github.com/googlechrome/lighthouse/pull/9309))
+* update `debug` to 2.6.9 ([#9398](https://github.com/googlechrome/lighthouse/pull/9398))
+* update to `open` from `opn` ([#9267](https://github.com/googlechrome/lighthouse/pull/9267))
+* update outdated transitive deps ([#9347](https://github.com/googlechrome/lighthouse/pull/9347))
+* update `brfs` to 2.0.2 ([#9312](https://github.com/googlechrome/lighthouse/pull/9312))
+* remove `commitizen` as local dep ([#9246](https://github.com/googlechrome/lighthouse/pull/9246))
+* update `extend` to 3.0.2 ([#9184](https://github.com/googlechrome/lighthouse/pull/9184))
+* bump transitive dep `js-yaml` ([#9131](https://github.com/googlechrome/lighthouse/pull/9131))
+* update `bundlesize`, add more budgets ([#9089](https://github.com/googlechrome/lighthouse/pull/9089))
+
+## Docs
+
+* add i18n overview and authoring documentation ([#9361](https://github.com/googlechrome/lighthouse/pull/9361))
+* link to good first issues ([#9440](https://github.com/googlechrome/lighthouse/pull/9440))
+* add instructions for testing with self-signed certificate ([#9112](https://github.com/googlechrome/lighthouse/pull/9112))
+* update `understanding-results.md` ([#9226](https://github.com/googlechrome/lighthouse/pull/9226))
+* change score type from 'string' to 'number' ([#9225](https://github.com/googlechrome/lighthouse/pull/9225))
+* readme: add `Exthouse` to related projects ([#9243](https://github.com/googlechrome/lighthouse/pull/9243))
+* readme: add `lighthouse-jest-example` to related projects ([#9172](https://github.com/googlechrome/lighthouse/pull/9172))
+* readme: add `lighthouse-persist` to related projects([#9161](https://github.com/googlechrome/lighthouse/pull/9161))
+* readme: add `gimbal` integration to related projects ([#9083](https://github.com/googlechrome/lighthouse/pull/9083))
+* readme: update `lighthouse-mocha-example` related project ([#9158](https://github.com/googlechrome/lighthouse/pull/9158))
+* readme: alphabetize related projects ([#9110](https://github.com/googlechrome/lighthouse/pull/9110))
+* fix various typos ([#9411](https://github.com/googlechrome/lighthouse/pull/9411))
+
+## I18n
+
+* introduce script to swap in new locale to LHR ([#8755](https://github.com/googlechrome/lighthouse/pull/8755))
+* enable local debug locale, `en-XL` ([#9192](https://github.com/googlechrome/lighthouse/pull/9192))
+* begin localization of audits in `best-practices` ([#9092](https://github.com/googlechrome/lighthouse/pull/9092))
+* add `es-419` ([#9171](https://github.com/googlechrome/lighthouse/pull/9171))
+* localize column headers of budget audits ([#9127](https://github.com/googlechrome/lighthouse/pull/9127))
+
+## Report
+
+* fix audit explanation rendering ([#9439](https://github.com/googlechrome/lighthouse/pull/9439))
+* accessibility: add heading role to report category gauge ([#9422](https://github.com/googlechrome/lighthouse/pull/9422))
+* add link to docs on performance scoring ([#9355](https://github.com/googlechrome/lighthouse/pull/9355))
+* use full-bleed image thumbnails ([#9238](https://github.com/googlechrome/lighthouse/pull/9238))
+* show disabled checkbox when all/no urls are third party ([#9299](https://github.com/googlechrome/lighthouse/pull/9299))
+* remove unnecessary attribute in svg ([#9301](https://github.com/googlechrome/lighthouse/pull/9301))
+* make urls clickable ([#9224](https://github.com/googlechrome/lighthouse/pull/9224))
+* use css grid for metrics ([#9273](https://github.com/googlechrome/lighthouse/pull/9273))
+* center and style top-level runtimeError ([#9271](https://github.com/googlechrome/lighthouse/pull/9271))
+* create naming convention for css variables ([#9149](https://github.com/googlechrome/lighthouse/pull/9149), [37f7261](https://github.com/googlechrome/lighthouse/commit/37f7261), [ece89ec](https://github.com/googlechrome/lighthouse/commit/ece89ec))
+* add aria-labels to tools button and metric toggle ([#9201](https://github.com/googlechrome/lighthouse/pull/9201))
+* update permalink calculations for correct hash nav scroll position ([#9188](https://github.com/googlechrome/lighthouse/pull/9188))
+* devtools: enable report UI features ([#9157](https://github.com/googlechrome/lighthouse/pull/9157))
+* position sticky-header highlighter with css grid ([#9186](https://github.com/googlechrome/lighthouse/pull/9186))
+* ensure SVG elements in `<defs>` have unique ids ([#9151](https://github.com/googlechrome/lighthouse/pull/9151))
+* only print light theme ([#9173](https://github.com/googlechrome/lighthouse/pull/9173))
+* make 'tools' menu focus-able ([#9169](https://github.com/googlechrome/lighthouse/pull/9169))
+* rename 'exports' to 'tools' ([#9135](https://github.com/googlechrome/lighthouse/pull/9135))
+* remove unused css vars ([#9144](https://github.com/googlechrome/lighthouse/pull/9144))
+
+## Tests
+
+* relax contrast font size expectation ([#9441](https://github.com/googlechrome/lighthouse/pull/9441))
+* `font-size`: assert on source ([#9400](https://github.com/googlechrome/lighthouse/pull/9400), [#9413](https://github.com/googlechrome/lighthouse/pull/9413))
+* assert `vulnerable-library` ranges have upper bounds ([#9308](https://github.com/googlechrome/lighthouse/pull/9308))
+* i18n: update canonical locale test for node 12.6 ([#9396](https://github.com/googlechrome/lighthouse/pull/9396))
+* i18n: throw when no ICU replacement value is given ([#9384](https://github.com/googlechrome/lighthouse/pull/9384))
+* run CI with a frozen `yarn.lock` ([#9362](https://github.com/googlechrome/lighthouse/pull/9362))
+* smokehouse: assert on expected array length ([#9292](https://github.com/googlechrome/lighthouse/pull/9292))
+* smokehouse: always assert `lhr.runtimeError` ([#9130](https://github.com/googlechrome/lighthouse/pull/9130))
+* `tags-blocking-first-paint`: make alternate stylesheets not blocking ([#9248](https://github.com/googlechrome/lighthouse/pull/9248))
+* improve drag-and-drop test coverage ([#9314](https://github.com/googlechrome/lighthouse/pull/9314))
+* clean up crufty `gather-runner` tests ([#9227](https://github.com/googlechrome/lighthouse/pull/9227))
+
+## Misc
+
+* fix `yarn.lock` and translations master drift ([#9404](https://github.com/googlechrome/lighthouse/pull/9404))
+* build: adjust deployment filenames ([#9338](https://github.com/googlechrome/lighthouse/pull/9338), [#9434](https://github.com/googlechrome/lighthouse/pull/9434))
+* build: create error-y LHR for the deploy ([#9283](https://github.com/googlechrome/lighthouse/pull/9283))
+* `network-server-latency`: fix serverResponseTime typo ([#9388](https://github.com/googlechrome/lighthouse/pull/9388))
+* localize logged `GatherRunner` error ([#9291](https://github.com/googlechrome/lighthouse/pull/9291))
+* remove duplicate colon from regex ([#9295](https://github.com/googlechrome/lighthouse/pull/9295))
+* runner: add assertion for `devtoolsLog` as `requiredArtifact` ([#9290](https://github.com/googlechrome/lighthouse/pull/9290))
+* add `yarn static-server` script ([#9293](https://github.com/googlechrome/lighthouse/pull/9293))
+* fix typo in `performance-budget` smoke test ([#9244](https://github.com/googlechrome/lighthouse/pull/9244))
+* add `.idea` to `.gitignore` for WebStorm developers ([#9275](https://github.com/googlechrome/lighthouse/pull/9275))
+* build: generate report variants in deployment ([#9280](https://github.com/googlechrome/lighthouse/pull/9280))
+* suggest uploading issue repro ([#9217](https://github.com/googlechrome/lighthouse/pull/9217))
+* use `CHROME_PATH` variable in CI and scripts ([#9202](https://github.com/googlechrome/lighthouse/pull/9202))
+* update broken tracing-processor require ([#9123](https://github.com/googlechrome/lighthouse/pull/9123))
+* address release script feedback ([#9111](https://github.com/googlechrome/lighthouse/pull/9111))
+* release script should commit with format vX.Y.Z ([#9090](https://github.com/googlechrome/lighthouse/pull/9090))
+
+[Full 5.2.0 Changelog](https://github.com/googlechrome/lighthouse/compare/v5.1.0...v5.2.0)
+
 <a name="5.1.0"></a>
 # 5.1.0 (2019-05-30)
 [Full Changelog](https://github.com/googlechrome/lighthouse/compare/v5.0.0...v5.1.0)
diff --git a/clients/extension/manifest.json b/clients/extension/manifest.json
index ee2d8d504763..8666e25f3af4 100644
--- a/clients/extension/manifest.json
+++ b/clients/extension/manifest.json
@@ -1,6 +1,6 @@
 {
   "name": "__MSG_appName__",
-  "version": "5.1.0",
+  "version": "5.2.0",
   "minimum_chrome_version": "72",
   "manifest_version": 2,
   "description": "__MSG_appDescription__",
diff --git a/lighthouse-core/test/results/sample_v2.json b/lighthouse-core/test/results/sample_v2.json
index a68818bf536a..cc199f2aa88a 100644
--- a/lighthouse-core/test/results/sample_v2.json
+++ b/lighthouse-core/test/results/sample_v2.json
@@ -5,7 +5,7 @@
     "hostUserAgent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3358.0 Safari/537.36",
     "benchmarkIndex": 1000
   },
-  "lighthouseVersion": "5.1.0",
+  "lighthouseVersion": "5.2.0",
   "fetchTime": "2018-03-13T00:55:45.840Z",
   "requestedUrl": "http://localhost:10200/dobetterweb/dbw_tester.html",
   "finalUrl": "http://localhost:10200/dobetterweb/dbw_tester.html",
diff --git a/package.json b/package.json
index 29ba66c48be0..2ca2bdb15ef2 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "lighthouse",
-  "version": "5.1.0",
+  "version": "5.2.0",
   "description": "Lighthouse",
   "main": "./lighthouse-core/index.js",
   "bin": {
diff --git a/proto/sample_v2_round_trip.json b/proto/sample_v2_round_trip.json
index 63b760193ea7..2bd3fde22f2b 100644
--- a/proto/sample_v2_round_trip.json
+++ b/proto/sample_v2_round_trip.json
@@ -3981,7 +3981,7 @@
             "warningHeader": "Warnings: "
         }
     },
-    "lighthouseVersion": "5.1.0",
+    "lighthouseVersion": "5.2.0",
     "requestedUrl": "http://localhost:10200/dobetterweb/dbw_tester.html",
     "runWarnings": [],
     "stackPacks": [