[Webkit-unassigned] [Bug 180460] New: [Mac] REGRESSION(r224527): Drawing a path with box-shadow takes double the blur-radius on Retina display

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=180460

            Bug ID: 180460
           Summary: [Mac] REGRESSION(r224527): Drawing a path with
                    box-shadow takes double the blur-radius on Retina
                    display
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: sabouhallawa at apple.com
                CC: bfulgham at webkit.org, simon.fraser at apple.com,
                    zalan at apple.com

Created attachment 328528

  --> https://bugs.webkit.org/attachment.cgi?id=328528&action=review

test case

Open the attached test case on High Sierra MacOS Retina display.

Result: the box-shadow of the rounded rectangle does not render correctly. It looks as if the blur-radius is doubled (See the attached picture which compares the correct display and the wrong display).

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