[Webkit-unassigned] [Bug 264392] Margin accumulates on every layout in Shadow DOM

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=264392

Ahmad Saleem <ahmad.saleem792 at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |ahmad.saleem792 at gmail.com

--- Comment #10 from Ahmad Saleem <ahmad.saleem792 at gmail.com> ---
Created attachment 470924

  --> https://bugs.webkit.org/attachment.cgi?id=470924&action=review

Testcase (from GitHub)

STR:

1) Load testcase
2) Click `show me the bug' button (once or multiple time)

Expected Result:

No change in layout

Actual Result:

On each click, the button gets pushed down.

____

Chrome Canary 125 and Firefox Nightly 126 are working as expected. While STP192 is also broken.

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