Resync web-platform-tests/html/browsers from upstream.
Created attachment 451387 [details] Patch
Created attachment 451415 [details] Patch
Comment on attachment 451415 [details] Patch rs=me
Committed r289516 (247047@main): <https://commits.webkit.org/247047@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 451415 [details].
<rdar://problem/88725882>