[Webkit-unassigned] [Bug 249279] New: Include overflows from visual effects in RenderTableSection

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=249279

            Bug ID: 249279
           Summary: Include overflows from visual effects in
                    RenderTableSection
           Product: WebKit
           Version: Safari Technology Preview
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Tables
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ahmad.saleem792 at gmail.com
                CC: zalan at apple.com

Hi Team,

While going through Blink's commit, I came across another paint invalidation bug:

Test Case (don't run in full screen, run in JSFiddle and watch result window/section) - https://jsfiddle.net/2Lpoj4tv/

^ In Safari 16.2 & Safari Technology Preview 159, the box show slim layout skeleton and then the box move while in other browsers like Chrome Canary 110 and Firefox Nightly 110, there is no as such artifact or glitch where a layout is showing where the box is going to move. It does not happens after multiple runs and also on first try sometime the box does not move at all as well in Safari.

Blink Commit - https://chromium.googlesource.com/chromium/blink/+/dba22725e4163641a807574077abcadc62c2a35f

Webkit GitHub Source - https://github.com/WebKit/WebKit/blob/403e78eb6ddb81c1319cca7045b09199474573ed/Source/WebCore/rendering/RenderTable.cpp#L562 & https://github.com/WebKit/WebKit/blob/403e78eb6ddb81c1319cca7045b09199474573ed/Source/WebCore/rendering/RenderTable.cpp#L422

Just wanted to raise this bug so it can be fixed.

Thanks!

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