border-radius fails to clip iframe contents
Created attachment 397989 [details] Patch
<rdar://problem/61945671>
Created attachment 398004 [details] Patch
Is this related to bug 210666 or bug 159045 in any way?
It should fix both.
https://trac.webkit.org/changeset/260950/webkit
*** Bug 210666 has been marked as a duplicate of this bug. ***
The new test compositing/iframes/border-radius-composited-frame.html added in https://trac.webkit.org/changeset/260950/webkit is flaky on iOS History: https://results.webkit.org/?suite=layout-tests&test=compositing%2Fiframes%2Fborder-radius-composited-frame.html Diff: https://build.webkit.org/results/Apple%20iOS%2013%20Simulator%20Release%20WK2%20(Tests)/r260952%20(4102)/compositing/iframes/border-radius-composited-frame-diffs.html
Tracking this new test failure in https://bugs.webkit.org/show_bug.cgi?id=211261