https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#constructing-form-data-set
Created attachment 452168 [details] Patch
Comment on attachment 452168 [details] Patch r=me
Committed r289902 (247335@main): <https://commits.webkit.org/247335@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 452168 [details].
<rdar://problem/89032569>