Import fetch/origin/assorted.window.js after the latest merge: https://github.com/web-platform-tests/wpt/pull/22567
Created attachment 395691 [details] Patch
Created attachment 395721 [details] Patch
Committed r259725: <https://trac.webkit.org/changeset/259725> All reviewed patches have been landed. Closing bug and clearing flags on attachment 395721 [details].
<rdar://problem/61461756>