[Webkit-unassigned] [Bug 220231] REGRESSION: animated iframe painted blank

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=220231

--- Comment #7 from Mathieu Hofman <hofman+webkit at stripe.com> ---
I believe we've isolated a necessary trigger for this bug: the window needs to be rendered on a secondary display (non-retina?), not the built-in display of the MacBook Pro.

Then dragging that window to the built-in display will cause the iframe to be painted. The same is not true if dragging the window to another (non-retina?) display.

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