RESOLVED FIXED 256039
iOS: Duplicate WebGL content after switching away from Safari and coming back 
https://bugs.webkit.org/show_bug.cgi?id=256039
Summary iOS: Duplicate WebGL content after switching away from Safari and coming back
Jeremy
Reported 2023-04-27 06:57:10 PDT
Created attachment 466116 [details] video demonstrating the bug Hello, I have a Safari / iPhone problem rendering scenes with transparent canvas. The code: https://stackblitz.com/edit/angular-11-new-pd64ne?file=src%2Fapp%2Fapp.component.ts The video demonstrating the bug: https://global.discourse-cdn.com/standard17/uploads/threejs/original/3X/1/2/12bbef37cf777b13a282032b187cb96609399349.mp4 I initially opened a topic here: https://discourse.threejs.org/t/ios-iphone-problem-when-switching-tabs/50790 and redirected me to open a bug tracker here because it seems to be a device specific problem. Thank you, Jeremy.
Attachments
video demonstrating the bug (1.33 MB, video/mp4)
2023-04-27 06:57 PDT, Jeremy 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Kimmo Kinnunen
Comment 1 2023-05-02 01:03:15 PDT
<rdar://87609216>
Kimmo Kinnunen
Comment 2 2023-05-02 01:09:16 PDT
Thank you for the report. For the time being, you can work around, if possible, by removing the background color from the canvas element.
Kimmo Kinnunen
Comment 3 2023-05-04 00:58:09 PDT
Pull request: https://github.com/WebKit/WebKit/pull/13438
EWS
Comment 4 2023-05-08 10:32:01 PDT
Committed 263803@main (05fc19839037): <https://commits.webkit.org/263803@main> Reviewed commits have been landed. Closing PR #13438 and removing active labels.
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