- From: Simon Pieters <simonp@opera.com>
- Date: Sat, 05 Jan 2008 02:04:56 +0100
- To: public-html <public-html@w3.org>
HTML 5 should define which attribute values should be treated case-insensitively with regards to Selectors, and whether that's ASCII case-insensitively or Unicode case-insensitively. I tested what browsers do: http://simon.html5.org/test/selectors/case-sensitivity/ IE7 treats all attribute values case-sensitively. When the document is served as XML, all attribute values are case-sensitive in Opera, Firefox and Safari. When the document is served as text/html: In Opera, for any HTML element, a given set of attributes (see below) are treated Unicode case-insensitively. In Firefox, for any element (including non-HTML elements), a given set of attributes (see below) are treated Unicode case-insensitively. In Safari, for any element (including non-HTML elements), all attributes are treated ASCII case-insensitively. The set of attributes is (assuming I haven't missed some attribute to test): accept, charset, disabled, align, alink, axis, bgcolor, charset, clear, codetype, color, compact, declare, defer, dir, disabled, enctype, face, frame, hreflang, http-equiv, ismap (missing in Firefox), language, link, media, method, multiple, noresize, noshade, nowrap, readonly, rel, rev, rules, scope, scrolling, selected, shape, target, text, type, valign (missing in Opera), valuetype, vlink. Also see: http://rakaz.nl/item/css_selector_bugs_case_sensitivity Personally, I think that whether the document was served as XML or text/html shouldn't matter here, and that the same set of attributes should be treated case-insensitively for both HTML and XHTML. Moreover, I think the set of attributes should only apply for elements in the HTML namespace (like in Opera). I don't mind that the set of attributes applies to all elements in the HTML namespace. -- Simon Pieters Opera Software
Received on Saturday, 5 January 2008 01:05:03 UTC