[Webkit-unassigned] [Bug 247961] New: filter:blur on an absolutely positioned image loses overflow:hidden

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=247961

            Bug ID: 247961
           Summary: filter:blur on an absolutely positioned image loses
                    overflow:hidden
           Product: WebKit
           Version: Safari Technology Preview
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ahmad.saleem792 at gmail.com
                CC: bfulgham at webkit.org, simon.fraser at apple.com,
                    zalan at apple.com

Hi Team,

Another bug and testcase, which we are failing:

Link - https://jsfiddle.net/gbarnett/wxbaw/

It works better in Safari Tech Preview 157 but does not do any transition and both Chrome Canary 110 and Firefox Nightly 109 do and also STP 157 also has second phase of blurring kind of like trying to do more blur in this case.

I am creating this bug to merge following commit:

Blink Commit - https://src.chromium.org/viewvc/blink?view=revision&revision=180361

Webkit GitHub Source - https://github.com/WebKit/WebKit/blob/5730d5c8fb455166bc00aaaef3689b3d07dcdc34/Source/WebCore/rendering/RenderLayer.cpp#L3266 & https://github.com/WebKit/WebKit/blob/5730d5c8fb455166bc00aaaef3689b3d07dcdc34/Source/WebCore/rendering/RenderLayer.cpp#L3292

Note - the attached test case with the change does not reflect any by default but it is broken when blur is added even in STP157:

Link - https://jsfiddle.net/cwgLm1e3/

Just creating bug.

Thanks!

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