Bug 250501

Summary:

[UI-side compositing] alert() causes entire page contents to disappear

Product:

WebKit

Reporter:

Simon Fraser (smfr) <simon.fraser>

Component:

WebKit Process Model

Assignee:

Simon Fraser (smfr) <simon.fraser>

Status:

RESOLVED FIXED

Severity:

Normal

CC:

simon.fraser, webkit-bug-importer

Priority:

Keywords:

InRadar

Version:

WebKit Local Build

Hardware:

Unspecified

OS:

Unspecified

Attachments:

Description	Flags
Simple test	none

Description Simon Fraser (smfr) 2023-01-11 22:36:37 PST

Created attachment 464466 [details]
Simple test

Summary:
If a page triggers a JavaScript dialog (alert, confirm etc), then the entire page contents go missing.

Steps To Reproduce:
1. Start a GitHub review (I was on https://github.com/WebKit/WebKit/pull/8277/files)
2. Add a pending comment
3. Try to remove the comment

Results:
When the alert shows up, the page contents disappear and don’t come back until you do a cross-origin navigation.

Regression:
Regression with UI-side compositing.

Comment 1 Simon Fraser (smfr) 2023-01-11 22:36:51 PST

rdar://104139106

Comment 2 Simon Fraser (smfr) 2023-01-11 22:41:24 PST

Pull request: https://github.com/WebKit/WebKit/pull/8560

Comment 3 EWS 2023-01-12 13:41:55 PST

Committed 258849@main (f40a2f336eae): <https://commits.webkit.org/258849@main>

Reviewed commits have been landed. Closing PR #8560 and removing active labels.