[Webkit-unassigned] [Bug 156790] Position of WebGL <canvas> on iOS is incorrect with CSS borders

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=156790

--- Comment #5 from Antoine Quint <graouts at webkit.org> ---
It looks like the device pixel ratio may have something to do with this. If we measure the distance from the border to the WebGL layer (dGL) and the distance from the border to the background (dBG) I can see that on a 2x display dBG is 2x dGL while on a 3x display it is 3x dGL. Alas, I can't test on a 1x iOS display, but my guess is that the bug would not reproduce there.

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