Bug 315320

Summary:	REGRESSION(308209@main): Top and bottom fixed position elements flicker when rubber band scrolling
Product:	WebKit	Reporter:	Ryan Reno <rreno>
Component:	Scrolling	Assignee:	Ryan Reno <rreno>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	simon.fraser, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Ryan Reno

Reported 2026-05-21 13:56:13 PDT

When rubber band scrolling while obscured insets are changing interactively fixed position elements will flicker. This is becasue we aren't updating the fixed clipping view bounds when we are throttling visible content rect updates.

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Ryan Reno

Comment 1 2026-05-21 13:56:14 PDT

<rdar://problem/176226179>

Ryan Reno

Comment 2 2026-05-21 13:59:33 PDT

Pull request: https://github.com/WebKit/WebKit/pull/65435

EWS

Comment 3 2026-05-22 14:13:33 PDT

Committed 313759@main (13e748d81951): <https://commits.webkit.org/313759@main> Reviewed commits have been landed. Closing PR #65435 and removing active labels.

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