RESOLVED FIXED302953
[threaded-animations] https://scroll-driven-animations.style/demos/scroll-shadows/css/ asserts with "Threaded Scroll-driven Animations" enabled 
https://bugs.webkit.org/show_bug.cgi?id=302953
Summary [threaded-animations] https://scroll-driven-animations.style/demos/scroll-sha...
Antoine Quint
Reported 2025-11-21 08:53:44 PST
We made a mistake in 303312@main and removed the requirement that an effect's associated animation not be pending to qualify for acceleration and as a result we hit the `ASSERT(!animation->pending())` assertion in the `AcceleratedEffect` constructor.
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Antoine Quint
Comment 1 2025-11-21 08:54:55 PST
Pull request: https://github.com/WebKit/WebKit/pull/54325
EWS
Comment 2 2025-11-21 11:29:34 PST
Committed 303410@main (fc9b2b2ae777): <https://commits.webkit.org/303410@main> Reviewed commits have been landed. Closing PR #54325 and removing active labels.
Radar WebKit Bug Importer
Comment 3 2025-11-21 11:30:14 PST
<rdar://problem/165225321>
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