We're observing a page load time regression after merging https://github.com/WebKit/WebKit/pull/4190. We should revert while we address this issue.
rdar://100342604
Pull request: https://github.com/WebKit/WebKit/pull/4652
Pull request: https://github.com/WebKit/WebKit/pull/4653
Committed 254812@main (ba9eae07bb2e): <https://commits.webkit.org/254812@main> Reviewed commits have been landed. Closing PR #4653 and removing active labels.