RESOLVED FIXED 288967
[web-animations] setting an animation's effect via the bindings should not prevent the `animation-timeline` CSS property from setting the animation's timeline 
https://bugs.webkit.org/show_bug.cgi?id=288967
Summary [web-animations] setting an animation's effect via the bindings should not pr...
Antoine Quint
Reported 2025-03-03 07:18:15 PST
We correctly prevent most `animation-*` properties from modifying properties of an animation's associated effect should the effect be set via the bindings. But we need to ensure we test that for `animation-timeline`, we let the CSS property modify the animation since this is a property modifying the animation and not its associated effect, like `animation-play-state`. We have the code in place for this behavior, but I don't believe we have test coverage.
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Antoine Quint
Comment 1 2025-03-03 07:19:37 PST
Pull request: https://github.com/WebKit/WebKit/pull/41767
Antoine Quint
Comment 2 2025-03-03 07:20:01 PST
Submitted web-platform-tests pull request: https://github.com/web-platform-tests/wpt/pull/51057
EWS
Comment 3 2025-03-03 09:25:30 PST
Committed 291502@main (644436277c5f): <https://commits.webkit.org/291502@main> Reviewed commits have been landed. Closing PR #41767 and removing active labels.
Radar WebKit Bug Importer
Comment 4 2025-03-03 09:26:16 PST
<rdar://problem/146025822>
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