[Webkit-unassigned] [Bug 270859] New: Picture-in-Picture from canvas-sourced video turns black when canvas is resized

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=270859

            Bug ID: 270859
           Summary: Picture-in-Picture from canvas-sourced video turns
                    black when canvas is resized
           Product: WebKit
           Version: Safari 17
          Hardware: Mac (Apple Silicon)
                OS: macOS 14
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Media
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: tzahola at gmail.com

Created attachment 470322

  --> https://bugs.webkit.org/attachment.cgi?id=470322&action=review

HTML demonstration + video of crash

When using the Picture-in-Picture mode for a HTMLCanvasElement-sourced video, the floating video turns black if the source canvas is resized. It is also possible to crash the browser (as of version 17.3.1 (19617.2.4.11.12)) if we click the "return from PIP" button on the video (see the attached crash.mov).

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