Bug 238616

Summary: [iOS] WebKit misreports scroll position in requestAnimationFrame
Product: WebKit Reporter: Brent Fulgham <bfulgham>
Component: ScrollingAssignee: Nobody <webkit-unassigned>
Status: NEW    
Severity: Normal CC: augus.dupin, bfulgham, graouts, jack, simon.fraser, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Local Build   
Hardware: Unspecified   
OS: Unspecified   

Brent Fulgham
Reported 2022-03-31 10:50:09 PDT
Converted from a codepen.io test case: // iOS misreports scroll position! Set it, check it immediately and it's correct but then // on the next requestAnimationFrame (or sometimes in the same one), it REVERTS to the previous scroll position!!! You must run this on iOS Safari in the /debug/ window of CodePen so that it's not in an iframe https://codepen.io/GreenSock/debug/16c435b12ef09c38125204818e7b45fc?editors=0010
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Radar WebKit Bug Importer
Comment 1 2022-03-31 10:50:41 PDT
<rdar://problem/91113529>
Simon Fraser (smfr)
Comment 2 2023-01-17 15:48:41 PST
<rdar://88342742>
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