Bug 218290

Summary:	Using ShadowRoot.delegatesFocus causes page to refresh
Product:	WebKit	Reporter:	Caleb Williams <caleb.d.williams>
Component:	DOM	Assignee:	Nobody <webkit-unassigned>
Status:	RESOLVED DUPLICATE
Severity:	Normal	CC:	cdumez, smoley, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	Safari 14
Hardware:	Mac
OS:	macOS 10.15

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

Attachments
Add attachment proposed patch, testcase, etc.

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 ***

Note You need to log in before you can comment on or make changes to this bug.