[Webkit-unassigned] [Bug 220342] New: visibility:hidden fails to hide composited iframe

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=220342

            Bug ID: 220342
           Summary: visibility:hidden fails to hide composited iframe
           Product: WebKit
           Version: Safari Technology Preview
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Compositing
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: simon.fraser at apple.com

Created attachment 417037

  --> https://bugs.webkit.org/attachment.cgi?id=417037&action=review

Testcase

See testcase

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