Created attachment 413556 [details] test case [TextureMapper] backdrop-filter in nested reflections
Created attachment 413557 [details] [screenshot] Mac port works fine
Created attachment 413558 [details] [Screenshot] WinCairo port
Created attachment 413559 [details] WIP patch
Created attachment 413560 [details] test case 2
Created attachment 413561 [details] test case 3
Created attachment 413562 [details] WIP patch
Created attachment 413606 [details] Patch
Comment on attachment 413606 [details] Patch Clearing flags on attachment: 413606 Committed r269599: <https://trac.webkit.org/changeset/269599>
All reviewed patches have been landed. Closing bug.
<rdar://problem/71207794>