In https://bugs.webkit.org/show_bug.cgi?id=257176, functionality was introduced to wait for a previous request's cancel to complete before submitting a subsequent one. However, there's currently a bug that does not set the cancel flag to false if there's no subsequent request. This bug is to fix that.
rdar://124727713
Committed 276368@main (80b0cc5927c7): <https://commits.webkit.org/276368@main> Reviewed commits have been landed. Closing PR #26134 and removing active labels.