Import WPT https://github.com/web-platform-tests/wpt/commit/c078c3ed1a265af68fa9f19f9a897d6c9a18badd.
Pull request: https://github.com/WebKit/WebKit/pull/4970
Committed 255121@main (9bc8b86d2ecb): <https://commits.webkit.org/255121@main> Reviewed commits have been landed. Closing PR #4970 and removing active labels.
<rdar://problem/100758017>