SSIA
<rdar://problem/100782797>
The new API is Promise-based, which is one of the main differences.
Pull request: https://github.com/WebKit/WebKit/pull/7416
Committed 257658@main (d4cdd5f24b2e): <https://commits.webkit.org/257658@main> Reviewed commits have been landed. Closing PR #7416 and removing active labels.