Modern WebKit behavior *almost* aligns with WebKitLegacy, but not quite.
rdar://46323417
Created attachment 448168 [details] Patch
Created attachment 448169 [details] Patch
Comment on attachment 448169 [details] Patch Thanks for the review!
Committed r287522 (245657@main): <https://commits.webkit.org/245657@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 448169 [details].