Bug 188442

Summary: animations with transform properties & :active states get stuck running
Product: WebKit Reporter: Jer Noble <jer.noble>
Component: AnimationsAssignee: Nobody <webkit-unassigned>
Status: RESOLVED CONFIGURATION CHANGED    
Severity: Normal CC: bfulgham, dino, graouts, simon.fraser, webkit-bug-importer, zalan
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Attachments:
Description Flags
animation-test-transform.html none

Description Jer Noble 2018-08-09 10:33:24 PDT
Created attachment 346840 [details]
animation-test-transform.html

Given an animation definition with @keyframe rules containing transform: properties, and a :active selector which sets the animation-iteration-count to infinite, the animation will not stop when the :active state is removed.  An identical animation which uses top: properties in its @keyframe will stop correctly.
Comment 1 Radar WebKit Bug Importer 2018-08-09 10:33:52 PDT
<rdar://problem/43100174>
Comment 2 Simon Fraser (smfr) 2018-08-09 10:54:30 PDT
Does this happen if you disable "Web Animations and CSS Integration"?
Comment 3 Antoine Quint 2018-08-14 08:07:11 PDT
Actually, unless I misunderstand the test, it appears that Jer's test only works with the Web Animations code path and fails with the old code path.