NEW 260281
REGRESSION - rotateX() + rotateY() breaks when paired with translate or opacity 
https://bugs.webkit.org/show_bug.cgi?id=260281
Summary REGRESSION - rotateX() + rotateY() breaks when paired with translate or opacity
kevin
Reported 2023-08-16 12:19:57 PDT
If an element has a `transform: rotateX()` or `rotateY()` with more than 180deg (or .5turn) of rotation and either an opacity or translate, the transition or animation does not work in Safari 16.5 -> TP. It works as expected if the rotation is less than 180deg. It is the same regardless of whether it is a `transition` or `animation`. If using `translate` and `transform`, the `transform` will not work, but the `translate` will still work. If using `opacity` and `transform`, opacity will always stop working, and if the `rotateX()` or `rotateY()` is greater than 180deg, both will stop working. All scenarios work as expected in Chrome, Firefox, and Safari 14.1 -> 15.6. This codepen has examples: https://codepen.io/kevinpowell/pen/GRPKQvO
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Ahmad Saleem
Comment 1 2023-08-16 14:06:06 PDT
I am able to reproduce the broken behavior in WebKit ToT (266957@main) as well, where there is no 'flip' in 'red' box while transitioning.
Radar WebKit Bug Importer
Comment 2 2023-08-16 18:00:34 PDT
<rdar://problem/113998933>
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