http/tests/xmlhttprequest/cross-origin-cookie-storage.html The test is passing according to history on macOS and iOS. Expectations need to be removed. History: https://results.webkit.org/?suite=layout-tests&test=http%2Ftests%2Fxmlhttprequest%2Fcross-origin-cookie-storage.html
Created attachment 405197 [details] Patch
Committed r264869: <https://trac.webkit.org/changeset/264869> All reviewed patches have been landed. Closing bug and clearing flags on attachment 405197 [details].
<rdar://problem/66080558>
Yes, latest failure was in early June.