Bug 306337

Summary: [threaded-animations] test `webanimations/accelerated-animations-and-motion-path.html` crashes with "Threaded Time-based Animations" enabled
Product: WebKit Reporter: Antoine Quint <graouts>
Component: AnimationsAssignee: Antoine Quint <graouts>
Status: RESOLVED FIXED    
Severity: Normal CC: graouts, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Bug Depends on:    
Bug Blocks: 306349    

Antoine Quint
Reported 2026-01-27 08:11:03 PST
The test `webanimations/accelerated-animations-and-motion-path.html` crashes with "Threaded Time-based Animations" enabled due to hitting the `ASSERT(canBlend(from, to))` in the `blend(const AcceleratedEffectOffsetPosition&, const AcceleratedEffectOffsetPosition&, const BlendingContext&)` function.
Attachments
Radar WebKit Bug Importer
Comment 1 2026-01-27 08:11:18 PST
Antoine Quint
Comment 2 2026-01-27 08:15:29 PST
EWS
Comment 3 2026-01-27 10:39:27 PST
Committed 306290@main (44c3b8715193): <https://commits.webkit.org/306290@main> Reviewed commits have been landed. Closing PR #57334 and removing active labels.
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