Checkboxes are not being rendered on macOS. This is caused by message filtering in the WebContent process.
Pull request: https://github.com/WebKit/WebKit/pull/1929
Committed 251977@main (977bfd8fa243): <https://commits.webkit.org/251977@main> Reviewed commits have been landed. Closing PR #1929 and removing active labels.
<rdar://problem/96190505>
*** Bug 242308 has been marked as a duplicate of this bug. ***