[css-syntax] <link rel=stylesheet charset=…> turns out to still be supported.

Author: SimonSapin

css-syntax/Overview.html

@@ -453,11 +453,24 @@ <h4 class="heading settled heading" data-level=3.3.2 id=environment-encoding-htm
 HTML</span><a class=self-link href=#environment-encoding-html></a></h4>
 
 <p>	For stylesheets referred to by an HTML <a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#link-type-stylesheet><code>&lt;link rel=stylesheet&gt;</code></a> element,
-	the <a data-link-type=dfn href=#environment-encoding0 title="environment encoding">environment encoding</a> is the encoding of the referring document.
+	the <a data-link-type=dfn href=#environment-encoding0 title="environment encoding">environment encoding</a> is determined as follows:
+
+<p>	<ul>
+		<li>
+			<a data-link-type=dfn href=#get-an-encoding title="get an encoding">Get an encoding</a> for the value of the <code>charset</code> attribute of the element, if any.
+			If that does not return failure,
+			use the return value as the environment encoding.
+
+		<li>
+			Otherwise, use the encoding of the referring document.
+	</ul>
 
 <p class=note>	Note: this should be moved to the HTML spec.
 
-<h4 class="heading settled heading" data-level=3.3.3 id=environment-encoding-xml><span class=secno>3.3.3 </span><span class=content>
+<p class=note>	Note: Even though the HTML spec marks the <code>charset</code> attribute as obsolete,
+	implementations still consider it as of this writing (October 2013.)
+	Should we drop it?
+	<h4 class="heading settled heading" data-level=3.3.3 id=environment-encoding-xml><span class=secno>3.3.3 </span><span class=content>
 XML</span><a class=self-link href=#environment-encoding-xml></a></h4>
 
 <p>	For stylesheets referred to by an <a href=http://www.w3.org/TR/xml-stylesheet/#the-xml-stylesheet-processing-instruction><code>xml-stylesheet</code></a> processing instruction <a data-biblio-type=normative data-link-type=biblio href=#xmlstyle title=xmlstyle>[XMLSTYLE]</a>,

css-syntax/Overview.src.html

@@ -335,10 +335,28 @@ <h4 id="environment-encoding-html">
 HTML</h4>
 
 	For stylesheets referred to by an HTML <a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#link-type-stylesheet><code>&lt;link rel=stylesheet></code></a> element,
-	the <a>environment encoding</a> is the encoding of the referring document.
+	the <a>environment encoding</a> is determined as follows:
+
+	<ul>
+		<li>
+			<a>Get an encoding</a> for the value of the <code>charset</code> attribute of the element, if any.
+			If that does not return failure,
+			use the return value as the environment encoding.
+
+		<li>
+			Otherwise, use the encoding of the referring document.
+	</ul>
 
 	Note: this should be moved to the HTML spec.
 
+	Note: Even though the HTML spec marks the <code>charset</code> attribute as obsolete,
+	implementations still consider it as of this writing (October 2013.)
+	Should we drop it?
+	<!--
+		Test case:
+		data:text/html,<link%20rel=stylesheet%20href=http://test.csswg.org/suites/css2.1/20110323/html4/support/none.css><span%20class=&%23258;&%23733;&%23258;&%23164;&%23258;&%23168>Test
+	-->
+
 <h4 id="environment-encoding-xml">
 XML</h4>