Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 4e12206ac706f71f5106d13960d3324abb340a37
https://github.com/WebKit/WebKit/commit/4e12206ac706f71f5106d13960d3324abb340a37
Author: Antti Koivisto <[email protected]>
Date: 2026-05-21 (Thu, 21 May 2026)
Changed paths:
M LayoutTests/TestExpectations
M LayoutTests/imported/w3c/resources/resource-files.json
A
LayoutTests/imported/w3c/web-platform-tests/css/css-values/svg-attr-case-sensitivity-expected.html
A
LayoutTests/imported/w3c/web-platform-tests/css/css-values/svg-attr-case-sensitivity-ref.html
A
LayoutTests/imported/w3c/web-platform-tests/css/css-values/svg-attr-case-sensitivity.html
M Source/WebCore/style/StyleSubstitutionResolver.cpp
Log Message:
-----------
Fix css/css-values/html-attr-case-insensitivity.html
https://bugs.webkit.org/show_bug.cgi?id=315219
rdar://177547701
Reviewed by Anne van Kesteren.
ASCII-lowercase the attr() name only for HTML elements in HTML documents,
to match how HTML attributes are stored. Foreign content (SVG, MathML)
inside an HTML document remains case-sensitive. Without this, attr() on
an HTML element fails to find a mixed-case attribute name in the rule.
Adds a SVG-side WPT to verify case-sensitivity is preserved for
non-HTML elements.
Spec: https://drafts.csswg.org/css-values-5/#typedef-attr-name
* LayoutTests/TestExpectations:
* LayoutTests/imported/w3c/resources/resource-files.json:
*
LayoutTests/imported/w3c/web-platform-tests/css/css-values/svg-attr-case-sensitivity-expected.html:
Added.
*
LayoutTests/imported/w3c/web-platform-tests/css/css-values/svg-attr-case-sensitivity-ref.html:
Added.
*
LayoutTests/imported/w3c/web-platform-tests/css/css-values/svg-attr-case-sensitivity.html:
Added.
* Source/WebCore/style/StyleSubstitutionResolver.cpp:
(WebCore::Style::SubstitutionResolver::substituteAttrFunction):
Canonical link: https://commits.webkit.org/313654@main
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