See https://open-ui.org/components/invokers.explainer/#defaults, and the (draft) spec PR: https://github.com/whatwg/html/pull/9875
<rdar://problem/117659506>
Pull request: https://github.com/WebKit/WebKit/pull/25553
Committed 276694@main (8b3a40134afa): <https://commits.webkit.org/276694@main> Reviewed commits have been landed. Closing PR #25553 and removing active labels.