[Webkit-unassigned] [Bug 256443] New: Visual glitch when animating height

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=256443

            Bug ID: 256443
           Summary: Visual glitch when animating height
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: All
                OS: macOS 13
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Animations
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mic.gallego at gmail.com
                CC: dino at apple.com, graouts at apple.com

Created attachment 466269

  --> https://bugs.webkit.org/attachment.cgi?id=466269&action=review

Glitch

Hi,

I have found an issue that I have a hard time to re-create using a minimal test case, so you will need to try it here: https://0k536hk79rspnpqj-58908246213.shopifypreview.com
The glitch happen when opening/closing tabs in the FAQ section (see attached screenshot). Resizing the window to force a re-draw fixes the issue. This only happens on Safari. It might be a combination of the fact that we are using shadow, I don't really know.

PS: I have asked the merchant to not touch their settings, but the preview URL might expire in a few days or the merchant might change their settings. If possible, it would be nice if you could save the page if you need to work on this issue.

Thanks.

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