Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 2885103512745ed9bd5bd1d9fde9122626921b15
      
https://github.com/WebKit/WebKit/commit/2885103512745ed9bd5bd1d9fde9122626921b15
  Author: Antti Koivisto <[email protected]>
  Date:   2026-01-15 (Thu, 15 Jan 2026)

  Changed paths:
    A 
LayoutTests/fast/animation/webkit-box-shadow-inline-style-cache-expected.txt
    A LayoutTests/fast/animation/webkit-box-shadow-inline-style-cache.html
    M Source/WebCore/style/MatchResultCache.cpp
    M Source/WebCore/style/PropertyCascade.h

  Log Message:
  -----------
  REGRESSION(293848@main): In certain circumstances, -webkit-box-shadow (and 
perhaps other prefixed and/or cascade-alias properties) does not transition
https://bugs.webkit.org/show_bug.cgi?id=304347
rdar://167144768

Reviewed by Alan Baradlay.

Cascade aliases like -webkit-box-shadow did not work correctly with inline 
match result cache.

Test: fast/animation/webkit-box-shadow-inline-style-cache.html
* LayoutTests/fast/animation/webkit-box-shadow-inline-style-cache-expected.txt: 
Added.
* LayoutTests/fast/animation/webkit-box-shadow-inline-style-cache.html: Added.
* Source/WebCore/style/MatchResultCache.cpp:

We need to resolve cascade alias properties in IncludedProperties.

(WebCore::Style::MatchResultCache::computeAndUpdateChangedProperties):
* Source/WebCore/style/PropertyCascade.h:

Canonical link: https://commits.webkit.org/305660@main



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