Bug 245946

Summary:	Make ResizeObserver and IntersectionObserver timing match other browsers
Product:	WebKit	Reporter:	Emilio Cobos Álvarez (:emilio) <emilio>
Component:	Layout and Rendering	Assignee:	Ryosuke Niwa <rniwa>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	bfulgham, cathiechen, karlcow, rego, rniwa, simon.fraser, webkit-bug-importer, zalan
Priority:	P2	Keywords:	BrowserCompat, InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified
See Also:	https://bugs.webkit.org/show_bug.cgi?id=196729

Description Emilio Cobos Álvarez (:emilio) 2022-10-02 10:28:47 PDT

See discussion in https://github.com/whatwg/html/issues/8277, I think IntersectionObserver should run _after_ ResizeObserver, not before. That matches Gecko and Blink.

Comment 1 Emilio Cobos Álvarez (:emilio) 2022-10-02 10:29:28 PDT

https://github.com/whatwg/html/pull/8348 is the in-progress spec PR, test is linked there.

Comment 2 Radar WebKit Bug Importer 2022-10-03 12:17:45 PDT

<rdar://problem/100728378>

Comment 3 Ryosuke Niwa 2022-10-03 22:47:34 PDT

Pull request: https://github.com/WebKit/WebKit/pull/4967

Comment 4 EWS 2022-10-04 10:12:29 PDT

Committed 255132@main (565a28303653): <https://commits.webkit.org/255132@main>

Reviewed commits have been landed. Closing PR #4967 and removing active labels.