484190 - Add HTML5 case-insensitive attributes to CSS parser

Status: RESOLVED WORKSFORME

(Core :: CSS Parsing and Computation, defect)

Description

[Henri Sivonen (:hsivonen)]

The CSS parser should know about HTML5 attributes that need to be case-insensitive.

http://mxr.mozilla.org/mozilla-central/source/layout/style/nsCSSParser.cpp#2916
http://www.whatwg.org/specs/web-apps/current-work/#interaction-with-css
http://lists.w3.org/Archives/Public/public-html/2008Jan/0043.html

Comment 1

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

Based on those URLs, it seems like nobody has yet compiled the list of attributes.  Is that correct?

Comment 2

[Henri Sivonen (:hsivonen)]

It seems that no one has yet compiled a list. The list should be compilable from the HTML5 spec, but perhaps it's best to wait for Hixie to do it.

Comment 3

[:Ms2ger (he/him; ⌚ UTC+1/+2)]

Hixie has compiled the list[1] and it matches Mozilla's[2], so AFAICT nothing has to be changed. (Apart from the comment, possibly.)

[1] http://www.whatwg.org/specs/web-apps/current-work/#selectors
[2] http://mxr.mozilla.org/mozilla-central/source/layout/style/nsCSSParser.cpp#2916

Comment 4

[Anne (:annevk)]

Note that HTML currently requires <ol type> to be treated case-sensitively, but no browser does that.

Is there any chance we can just remove this list and treat all attributes as case-sensitive regardless of markup language? I can get it done in Opera.

Comment 5

[:Ms2ger (he/him; ⌚ UTC+1/+2)]

All browsers distinguish ol type=i and ol type=I, afaik. Open a new bug (and a spec bug) to make them all case-sensitive, maybe?

Comment 6

[Anne (:annevk)]

I filed 672171.

Comment 7

[Anne (:annevk)]

I meant I filed bug 672171, sorry.