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[] (0) Define base URIs and document addresses for various freaky cas… 

…es with about:blank.

git-svn-id: http://svn.whatwg.org/webapps@2711 340c8d12-0b0e-0410-8428-c7bf67bfef74
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@Hixie
Hixie committed Jan 27, 2009
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the <a href=#absolute-url>absolute URL</a> obtained by running these
substeps:</p>

<ol><li><p>If there is no <code><a href=#the-base-element>base</a></code> element that is both a
<ol><li><p>Let <var title="">fallback base url</var> be <a href="#the-document's-address">the
document's address</a>.</li>

<li>

<!-- http://www.hixie.ch/tests/adhoc/html/navigation/javascript-url/ -->

<!-- XXX this should be tested in the case of a browsing context
that was navigated to about:blank after having been elsewhere,
as opposed to the about:blank used at the time of the browsing
context's creation. -->

<p>If <var title="">fallback base url</var> is
<code><a href=#about:blank>about:blank</a></code>, and the <code>Document</code>'s
<a href=#browsing-context>browsing context</a> has a <a href=#creator-browsing-context>creator browsing
context</a>, then let <var title="">fallback base url</var>
be the <a href=#document-base-url>document base URL</a> of the <a href=#creator-document>creator
<code>Document</code></a> instead.</p>

</li>

<li><p>If there is no <code><a href=#the-base-element>base</a></code> element that is both a
child of <a href=#the-head-element-0>the <code>head</code> element</a> and has an
<code title=attr-base-href><a href=#attr-base-href>href</a></code> attribute, then the
<a href=#document-base-url>document base URL</a> is <a href="#the-document's-address">the document's
address</a>.</li>
<a href=#document-base-url>document base URL</a> is <var title="">fallback base
url</var>.</li>

<li><p>Otherwise, let <var title="">url</var> be the value of the
<code title=attr-base-href><a href=#attr-base-href>href</a></code> attribute of the first such
element.</li>
<code title=attr-base-href><a href=#attr-base-href>href</a></code> attribute of the first
such element.</li>

<li><p><a href=#resolve-a-url title="resolve a URL">Resolve</a> <var title="">url</var> relative to <a href="#the-document's-address">the document's
address</a> (thus, the <code><a href=#the-base-element>base</a></code> <code title=attr-base-href><a href=#attr-base-href>href</a></code> attribute isn't affected by
<li><p><a href=#resolve-a-url title="resolve a URL">Resolve</a> <var title="">url</var> relative to <var title="">fallback base
url</var> (thus, the <code><a href=#the-base-element>base</a></code> <code title=attr-base-href><a href=#attr-base-href>href</a></code> attribute isn't affected by
<code title=attr-xml-base><a href=#the-xml:base-attribute-(xml-only)>xml:base</a></code> attributes).</li>

<li><p>The <a href=#document-base-url>document base URL</a> is the result of the
previous step if it was successful; otherwise it is <a href="#the-document's-address">the
document's address</a>.</li>
previous step if it was successful; otherwise it is <var title="">fallback base url</var>.</li>

</ol></li>

data mining tools are likely to never instantiate browsing
contexts.</p>

<p>A <a href=#browsing-context>browsing context</a> can have a <dfn id=creator-browsing-context>creator browsing
context</dfn>, the <a href=#browsing-context>browsing context</a> that was
responsible for its creation. Unless otherwise specified, a
<a href=#browsing-context>browsing context</a> has no <a href=#creator-browsing-context>creator browsing
context</a>.</p>

<p>If a <a href=#browsing-context>browsing context</a> <var title="">A</var> has a
<a href=#creator-browsing-context>creator browsing context</a>, then the
<code>Document</code> that was the <a href=#active-document>active document</a> of
that <a href=#creator-browsing-context>creator browsing context</a> at the time <var title="">A</var> was created is the <dfn id=creator-document>creator
<code>Document</code></dfn>.</p>

<p>The main <a href=#view>view</a> through which a user primarily
interacts with a user agent is the <dfn id=default-view>default view</dfn>.</p>


<p id=about-blank-origin>The <a href=#origin-0>origin</a> of the
<code><a href=#about:blank>about:blank</a></code> <code>Document</code> is set when the
<code>Document</code> is created, in a manner dependent on whether
the <a href=#browsing-context>browsing context</a> created is a <a href=#nested-browsing-context>nested browsing
context</a>, as follows:
<code>Document</code> is created. If the new <a href=#browsing-context>browsing
context</a> has a <a href=#creator-browsing-context>creator browsing context</a>, then the
<a href=#origin-0>origin</a> of the <code><a href=#about:blank>about:blank</a></code>
<code>Document</code> is the <a href=#origin-0>origin</a> of the
<a href=#creator-document>creator <code>Document</code></a>. Otherwise, the
<a href=#origin-0>origin</a> of the <code><a href=#about:blank>about:blank</a></code>
<code>Document</code> is a globally unique identifier assigned when
the new <a href=#browsing-context>browsing context</a> is created.</p>

<dl class=switch><dt>If the new <a href=#browsing-context>browsing context</a> is a <a href=#nested-browsing-context>nested
browsing context</a></dt>

<dd>The <a href=#origin-0>origin</a> of the <code><a href=#about:blank>about:blank</a></code>
<code>Document</code> is the <a href=#origin-0>origin</a> of the
<a href=#active-document>active document</a> of the new <a href=#browsing-context>browsing
context</a>'s <a href=#parent-browsing-context>parent browsing context</a> at the time
of its creation.</dd>


<dt>If the new <a href=#browsing-context>browsing context</a> is an <a href=#auxiliary-browsing-context>auxiliary
browsing context</a></dt>

<dd>The <a href=#origin-0>origin</a> of the <code><a href=#about:blank>about:blank</a></code>
<code>Document</code> is the <a href=#origin-0>origin</a> of the
<a href=#active-document>active document</a> of the new <a href=#browsing-context>browsing
context</a>'s <a href=#opener-browsing-context>opener browsing context</a> at the time
of the new browsing context's creation.</dd>


<dt>Otherwise</dt>

<dd>The <a href=#origin-0>origin</a> of the <code><a href=#about:blank>about:blank</a></code>
<code>Document</code> is a globally unique identifier assigned when
the new <a href=#browsing-context>browsing context</a> is created.</dd>

</dl><h4 id=nested-browsing-contexts><span class=secno>5.1.1 </span>Nested browsing contexts</h4>
<h4 id=nested-browsing-contexts><span class=secno>5.1.1 </span>Nested browsing contexts</h4>

<p>Certain elements (for example, <code><a href=#the-iframe-element>iframe</a></code> elements) can
instantiate further <a href=#browsing-context title="browsing context">browsing
available.</p>




<h4 id=secondary-browsing-contexts><span class=secno>5.1.3 </span>Secondary browsing contexts</h4>

<p>User agents may support <dfn id=secondary-browsing-context title="secondary browsing

<dd>

<!-- http://www.hixie.ch/tests/adhoc/html/navigation/javascript-url/ -->

<p>Let <var title="">address</var> be the <a href="#the-document's-address" title="the
document's address">address</a> of the <a href=#active-document>active
document</a> of the <a href=#browsing-context>browsing context</a> being
navigated.</p>

<p>If <var title="">address</var> is <code><a href=#about:blank>about:blank</a></code>,
and the <a href=#browsing-context>browsing context</a> being navigated has a
<a href=#creator-browsing-context>creator browsing context</a>, then let <var title="">address</var> be the <a href="#the-document's-address" title="the document's
address">address</a> of the <a href=#creator-document>creator
<code>Document</code></a> instead.</p>

<p><a href=#create-a-script-from-a-node title="create a script from a node">Create a
script</a> from the <code>Document</code> node of the
<a href=#active-document>active document</a>, using the aforementioned script

<p>When it comes time to <a href="#set-the-document's-address">set the document's address</a>
in the <a href=#navigate title=navigate>navigation algorithm</a>, use
the <a href="#script's-base-url">script's base URL</a> as the <a href=#override-url>override
<var title="">address</var> as the <a href=#override-url>override
URL</a>.</p>

</dd>
109 source
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@@ -3612,25 +3612,46 @@

<ol>

<li><p>Let <var title="">fallback base url</var> be <span>the
document's address</span>.</p></li>

<li>

<!-- http://www.hixie.ch/tests/adhoc/html/navigation/javascript-url/ -->

<!-- XXX this should be tested in the case of a browsing context
that was navigated to about:blank after having been elsewhere,
as opposed to the about:blank used at the time of the browsing
context's creation. -->

<p>If <var title="">fallback base url</var> is
<code>about:blank</code>, and the <code>Document</code>'s
<span>browsing context</span> has a <span>creator browsing
context</span>, then let <var title="">fallback base url</var>
be the <span>document base URL</span> of the <span>creator
<code>Document</code></span> instead.</p>

</li>

<li><p>If there is no <code>base</code> element that is both a
child of <span>the <code>head</code> element</span> and has an
<code title="attr-base-href">href</code> attribute, then the
<span>document base URL</span> is <span>the document's
address</span>.</p></li>
<span>document base URL</span> is <var title="">fallback base
url</var>.</p></li>

<li><p>Otherwise, let <var title="">url</var> be the value of the
<code title="attr-base-href">href</code> attribute of the first such
element.</p></li>
<code title="attr-base-href">href</code> attribute of the first
such element.</p></li>

<li><p><span title="resolve a URL">Resolve</span> <var
title="">url</var> relative to <span>the document's
address</span> (thus, the <code>base</code> <code
title="">url</var> relative to <var title="">fallback base
url</var> (thus, the <code>base</code> <code
title="attr-base-href">href</code> attribute isn't affected by
<code title="attr-xml-base">xml:base</code> attributes).</p></li>

<li><p>The <span>document base URL</span> is the result of the
previous step if it was successful; otherwise it is <span>the
document's address</span>.</p></li>
previous step if it was successful; otherwise it is <var
title="">fallback base url</var>.</p></li>

</ol>

data mining tools are likely to never instantiate browsing
contexts.</p>

<p>A <span>browsing context</span> can have a <dfn>creator browsing
context</dfn>, the <span>browsing context</span> that was
responsible for its creation. Unless otherwise specified, a
<span>browsing context</span> has no <span>creator browsing
context</span>.</p>

<p>If a <span>browsing context</span> <var title="">A</var> has a
<span>creator browsing context</span>, then the
<code>Document</code> that was the <span>active document</span> of
that <span>creator browsing context</span> at the time <var
title="">A</var> was created is the <dfn>creator
<code>Document</code></dfn>.</p>

<p>The main <span>view</span> through which a user primarily
interacts with a user agent is the <dfn>default view</dfn>.</p>


<p id="about-blank-origin">The <span>origin</span> of the
<code>about:blank</code> <code>Document</code> is set when the
<code>Document</code> is created, in a manner dependent on whether
the <span>browsing context</span> created is a <span>nested browsing
context</span>, as follows:

<dl class="switch">

<dt>If the new <span>browsing context</span> is a <span>nested
browsing context</span></dt>

<dd>The <span>origin</span> of the <code>about:blank</code>
<code>Document</code> is the <span>origin</span> of the
<span>active document</span> of the new <span>browsing
context</span>'s <span>parent browsing context</span> at the time
of its creation.</dd>


<dt>If the new <span>browsing context</span> is an <span>auxiliary
browsing context</span></dt>

<dd>The <span>origin</span> of the <code>about:blank</code>
<code>Document</code> is the <span>origin</span> of the
<span>active document</span> of the new <span>browsing
context</span>'s <span>opener browsing context</span> at the time
of the new browsing context's creation.</dd>


<dt>Otherwise</dt>

<dd>The <span>origin</span> of the <code>about:blank</code>
<code>Document</code> is a globally unique identifier assigned when
the new <span>browsing context</span> is created.</dd>

</dl>
<code>Document</code> is created. If the new <span>browsing
context</span> has a <span>creator browsing context</span>, then the
<span>origin</span> of the <code>about:blank</code>
<code>Document</code> is the <span>origin</span> of the
<span>creator <code>Document</code></span>. Otherwise, the
<span>origin</span> of the <code>about:blank</code>
<code>Document</code> is a globally unique identifier assigned when
the new <span>browsing context</span> is created.</p>


<h4>Nested browsing contexts</h4>
available.</p>




<h4>Secondary browsing contexts</h4>

<p>User agents may support <dfn title="secondary browsing

<dd>

<!-- http://www.hixie.ch/tests/adhoc/html/navigation/javascript-url/ -->

<p>Let <var title="">address</var> be the <span title="the
document's address">address</span> of the <span>active
document</span> of the <span>browsing context</span> being
navigated.</p>

<p>If <var title="">address</var> is <code>about:blank</code>,
and the <span>browsing context</span> being navigated has a
<span>creator browsing context</span>, then let <var
title="">address</var> be the <span title="the document's
address">address</span> of the <span>creator
<code>Document</code></span> instead.</p>

<p><span title="create a script from a node">Create a
script</span> from the <code>Document</code> node of the
<span>active document</span>, using the aforementioned script

<p>When it comes time to <span>set the document's address</span>
in the <span title="navigate">navigation algorithm</span>, use
the <span>script's base URL</span> as the <span>override
<var title="">address</var> as the <span>override
URL</span>.</p>

</dd>

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