[Webkit-unassigned] [Bug 256380] New: Optimize clip-path rendering on stack overflow.com

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=256380

            Bug ID: 256380
           Summary: Optimize clip-path rendering on stack overflow.com
           Product: WebKit
           Version: WebKit Local Build
          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
                CC: simon.fraser at apple.com

stackoverflow.com has an element with a clip-path that is expensive to rendering, especially with GPU process:

<div style="clip-path:url(#curve)" class="p32 sm:p12 bar-lg p-bg-dark-gradient d:fc-black-750 ps-relative z-selected fc-black-025 p-font-smooth mbn128 pb128">

<svg width="0" height="0" class="ps-absolute">
        <defs>
            <clipPath id="curve" clipPathUnits="objectBoundingBox">
                <path d="M0,0 H1 V0.988 a0.007,0.012,0,0,1,-0.009,0.011 C0.955,0.983,0.802,0.925,0.501,0.925 C0.2,0.925,0.045,0.984,0.009,1 A0.007,0.012,0,0,1,0,0.988"></path>
            </clipPath>
        </defs></svg>

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