127.0.0.1:8000 - didReceiveAuthenticationChallenge - ProtectionSpaceAuthenticationSchemeHTTPBasic - Simulating cancelled authentication sheet
127.0.0.1:8000 - didReceiveAuthenticationChallenge - ProtectionSpaceAuthenticationSchemeHTTPBasic - Simulating cancelled authentication sheet
Test for bug 13075: XMLHttpRequest with failed authentication should set status to 401.

Sync, no credentials: OK
Sync, incorrect credentials: OK
Async, no credentials: OK
Async, incorrect credentials: OK