RESOLVED DUPLICATE of bug 215622 218290
Using ShadowRoot.delegatesFocus causes page to refresh 
https://bugs.webkit.org/show_bug.cgi?id=218290
Summary Using ShadowRoot.delegatesFocus causes page to refresh
Caleb Williams
Reported 2020-10-28 09:53:06 PDT
Attaching a shadow root with `delegatesFocus: true` will break a page of a click occurs inside the shadow DOM. A simple reproduction can be found a https://codepen.io/pen/MWeQaME
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Caleb Williams
Comment 1 2020-10-28 10:15:02 PDT
Update: This seems to happen only when there is no to focusable child in the shadow root (including buttons due to how WebKit handles button focus). With something like an input in the shadow root, things work just fine.
Smoley
Comment 2 2020-10-28 11:07:43 PDT
Thanks for filing, I can reproduce this on Safari 14.0 but I haven't been able to reproduce it on Safari 14.0.1 or 14.1. Are you able to reproduce this on later builds?
Radar WebKit Bug Importer
Comment 3 2020-10-28 11:07:57 PDT
<rdar://problem/70771527>
Smoley
Comment 4 2020-10-28 11:28:07 PDT
Apple internal see rdar://66832677.
Smoley
Comment 5 2020-10-28 11:29:01 PDT
*** This bug has been marked as a duplicate of bug 215622 ***
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