This was the most-requested feature in the URL Standard backlog. Standard: https://github.com/whatwg/url/pull/735. WPT: https://github.com/web-platform-tests/wpt/pull/39865.
<rdar://problem/108949109>
Pull request: https://github.com/WebKit/WebKit/pull/13500
Committed 263726@main (93a5678f2d4f): <https://commits.webkit.org/263726@main> Reviewed commits have been landed. Closing PR #13500 and removing active labels.