[Webkit-unassigned] [Bug 179659] New: CSS text-stroke ignores transforms in iOS 11 Safari

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=179659

            Bug ID: 179659
           Summary: CSS text-stroke ignores transforms in iOS 11 Safari
           Product: WebKit
           Version: Safari 11
          Hardware: iPhone / iPad
                OS: iOS 11
            Status: NEW
          Severity: Major
          Priority: P2
         Component: Layout and Rendering
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: david.hedley at vistair.com
                CC: bfulgham at webkit.org, simon.fraser at apple.com,
                    zalan at apple.com

In iOS 11 Safari, -webkit-text-stroke widths now ignore any containing transforms, so a 10px text stroke width will be rendered at 10px irrespective of whether the text is within a container with "transform: scale(100)" or "transform: scale(0.01)". This can make text rendering completely unreadable at certain scale factors.

Please look at: http://download.vistair.com/test/html/ipadstrokebug.html on iOS 10 and 11 and you'll see the problem. iOS 10 renders the text correctly and iOS 11 does not.

I am not sure if this an iOS bug or a webkit bug, so I have also filed a bug report with Apple (id #34430418)

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