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Suborigin names can only start with letters. #62

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Oct 27, 2016
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Suborigin names can only start with letters. #62

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Suborigin name must start with lowercase alpha.
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@joelweinberger
joelweinberger committed Oct 27, 2016
commit 4582803962e3ad50a6260e51c89630a92890fba3
8 changes: 7 additions & 1 deletion index.bs
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Expand Up @@ -461,7 +461,7 @@ spec: XHR; urlPrefix: https://xhr.spec.whatwg.org/
grammar [[!RFC5234]]:

<pre dfn-type="grammar" link-type="grammar">
<dfn>suborigin-name</dfn> = 1*( <a>LOWERALPHA</a> / <a>DIGIT</a> / "-" )
<dfn>suborigin-name</dfn> = <a>LOWERALPHA</a> *( <a>LOWERALPHA</a> / <a>DIGIT</a> )
<dfn>suborigin-policy-option</dfn> = "'unsafe-postmessage-send'"
/ "'unsafe-postmessage-receive'"
/ "'unsafe-cookies'"
Expand All @@ -478,6 +478,12 @@ spec: XHR; urlPrefix: https://xhr.spec.whatwg.org/
A resource's <dfn>suborigin policy</dfn> is the list of individual
<a link-type="grammar">suborigin-policy-option</a> values in the `suborigin`
header's <a link-type="grammar">suborigin-policy-list</a>.

Note: A suborigin name must start with a lowercase character, but after the
first character, the name may contain lowercase characters or numerals. This
is to avoid potential confusion when the origin is serialized if the
serialization started with a number.

## Accessing the Suborigin in JavaScript ## {#suborigin-in-js}

A `suborigin` property is added to the <a>document</a> object which
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10 changes: 7 additions & 3 deletions index.html
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Expand Up @@ -1363,7 +1363,7 @@
<div class="head">
<p data-fill-with="logo"><a class="logo" href="https://www.w3.org/"> <img alt="W3C" height="48" src="https://www.w3.org/StyleSheets/TR/2016/logos/W3C" width="72"> </a> </p>
<h1 class="p-name no-ref" id="title">Suborigins</h1>
<h2 class="no-num no-toc no-ref heading settled" id="subtitle"><span class="content">Editor’s Draft, <time class="dt-updated" datetime="2016-10-26">26 October 2016</time></span></h2>
<h2 class="no-num no-toc no-ref heading settled" id="subtitle"><span class="content">Editor’s Draft, <time class="dt-updated" datetime="2016-10-27">27 October 2016</time></span></h2>
<div data-fill-with="spec-metadata">
<dl>
<dt>This version:
Expand Down Expand Up @@ -1797,7 +1797,7 @@ <h3 class="heading settled" data-level="3.6" id="the-suborigin-header"><span cla
<p>Suborigins are defined by a <dfn class="dfn-paneled" data-dfn-type="dfn" data-noexport="" id="suborigin">suborigin</dfn> HTTP response header. The syntax
for the name and value of the header are described by the following ABNF
grammar <a data-link-type="biblio" href="#biblio-rfc5234">[RFC5234]</a>:</p>
<pre><dfn class="dfn-paneled" data-dfn-type="grammar" data-export="" id="grammardef-suborigin-name">suborigin-name</dfn> = 1*( <a data-link-type="grammar" href="#grammardef-loweralpha" id="ref-for-grammardef-loweralpha-1">LOWERALPHA</a> / <a data-link-type="grammar" href="https://tools.ietf.org/html/rfc5234#appendix-B.1">DIGIT</a> / "-" )
<pre><dfn class="dfn-paneled" data-dfn-type="grammar" data-export="" id="grammardef-suborigin-name">suborigin-name</dfn> = <a data-link-type="grammar" href="#grammardef-loweralpha" id="ref-for-grammardef-loweralpha-1">LOWERALPHA</a> *( <a data-link-type="grammar" href="#grammardef-loweralpha" id="ref-for-grammardef-loweralpha-2">LOWERALPHA</a> / <a data-link-type="grammar" href="https://tools.ietf.org/html/rfc5234#appendix-B.1">DIGIT</a> )
<dfn class="dfn-paneled" data-dfn-type="grammar" data-export="" id="grammardef-suborigin-policy-option">suborigin-policy-option</dfn> = "'unsafe-postmessage-send'"
/ "'unsafe-postmessage-receive'"
/ "'unsafe-cookies'"
Expand All @@ -1808,6 +1808,10 @@ <h3 class="heading settled" data-level="3.6" id="the-suborigin-header"><span cla
<p>User agents MUST ignore multiple suborigin headers and only apply the first.</p>
<p>A resource’s <dfn class="dfn-paneled" data-dfn-type="dfn" data-noexport="" id="suborigin-namespace">suborigin namespace</dfn> is the value of the <a data-link-type="grammar" href="#grammardef-suborigin-name" id="ref-for-grammardef-suborigin-name-2">suborigin-name</a> in the <code>suborigin</code> header.</p>
<p>A resource’s <dfn class="dfn-paneled" data-dfn-type="dfn" data-noexport="" id="suborigin-policy">suborigin policy</dfn> is the list of individual <a data-link-type="grammar" href="#grammardef-suborigin-policy-option" id="ref-for-grammardef-suborigin-policy-option-2">suborigin-policy-option</a> values in the <code>suborigin</code> header’s <a data-link-type="grammar" href="#grammardef-suborigin-policy-list" id="ref-for-grammardef-suborigin-policy-list-2">suborigin-policy-list</a>.</p>
<p class="note" role="note">Note: A suborigin name must start with a lowercase character, but after the
first character, the name may contain lowercase characters or numerals. This
is to avoid potential confusion when the origin is serialized if the
serialization started with a number.</p>
<h3 class="heading settled" data-level="3.7" id="suborigin-in-js"><span class="secno">3.7. </span><span class="content">Accessing the Suborigin in JavaScript</span><a class="self-link" href="#suborigin-in-js"></a></h3>
<p>A <code>suborigin</code> property is added to the <a data-link-type="dfn" href="https://dom.spec.whatwg.org/#concept-document">document</a> object which <a data-link-type="dfn" href="https://dom.spec.whatwg.org/#concept-reflect">reflects</a> the value of the suborigin namespace for the current execution
context. If there is no suborigin namespace, the value should be undefined.</p>
Expand Down Expand Up @@ -2383,7 +2387,7 @@ <h2 class="no-num no-ref heading settled" id="issues-index"><span class="content
<aside class="dfn-panel" data-for="grammardef-loweralpha">
<b><a href="#grammardef-loweralpha">#grammardef-loweralpha</a></b><b>Referenced in:</b>
<ul>
<li><a href="#ref-for-grammardef-loweralpha-1">3.6. The suborigin header</a>
<li><a href="#ref-for-grammardef-loweralpha-1">3.6. The suborigin header</a> <a href="#ref-for-grammardef-loweralpha-2">(2)</a>
</ul>
</aside>
<aside class="dfn-panel" data-for="suborigin">
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