[Webkit-unassigned] [Bug 252320] New: Incorrect rendering of crossing SVG paths when fill is "none"

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=252320

            Bug ID: 252320
           Summary: Incorrect rendering of crossing SVG paths when fill is
                    "none"
           Product: WebKit
           Version: Safari 16
          Hardware: iPhone / iPad
                OS: iOS 16
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: SVG
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: samuel at cendio.se
                CC: sabouhallawa at apple.com, zimmermann at kde.org

Created attachment 465002

  --> https://bugs.webkit.org/attachment.cgi?id=465002&action=review

minimal SVG displaying the issue

When two paths cross and fill is set to “none” a tiny piece of the background shines through. If the fill-attribute of the path is removed, things are rendered correctly.

This seems to only happen if the SVG is placed inside a <button> in the HTML, it doesn't happen when placed in a regular <div>.

Have seen the issue in Safari on an iPad with iOS 16.3.1. Does not happen in Safari 16.3 on macOS 13 nor in Epiphany 43, Chrome 110 or Firefox 109 on Fedora 37.

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