Use NSURLSessionAuthChallengeRejectProtectionSpace if WKNavigationDelegate didReceiveAuthenticationChallenge is not implemented
Created attachment 411958 [details] Patch
Committed r269049: <https://trac.webkit.org/changeset/269049> All reviewed patches have been landed. Closing bug and clearing flags on attachment 411958 [details].
<rdar://problem/70728243>