Bug 249075

Summary:	Check for promise before resolving in FullscreenManager::exitFullscreen()
Product:	WebKit	Reporter:	Tim Nguyen (:ntim) <ntim>
Component:	DOM	Assignee:	Tim Nguyen (:ntim) <ntim>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Description Tim Nguyen (:ntim) 2022-12-10 10:45:20 PST

The promise can be nullptr if called from the legacy fullscreen API (see DocumentFullscreen::webkitExitFullScreen), so we should check it's existence before trying to resolve.

Comment 1 Radar WebKit Bug Importer 2022-12-10 10:45:45 PST

<rdar://problem/103215492>

Comment 2 Tim Nguyen (:ntim) 2022-12-10 10:47:25 PST

Pull request: https://github.com/WebKit/WebKit/pull/7443

Comment 3 EWS 2022-12-10 16:09:50 PST

Committed 257689@main (91d9d701a8cd): <https://commits.webkit.org/257689@main>

Reviewed commits have been landed. Closing PR #7443 and removing active labels.