TestWebKitAPI.Challenge.BasicProposedCredential seems to have started failing consistently in EWS since yesterday, both on iOS and mac. e.g.: iOS: https://ews-build.webkit.org/#/builders/9/builds/4037, https://ews-build.webkit.org/#/builders/9/builds/4022 mac: https://ews-build.webkit.org/#/builders/3/builds/4150, https://ews-build.webkit.org/#/builders/3/builds/4133
<rdar://problem/52671865>
I think this may be related to: https://trac.webkit.org/changeset/247123/webkit
I rolled out the change. *** This bug has been marked as a duplicate of bug 199385 ***