HTTP/1.1 401 Unauthorized Date: Tue, 27 Mar 2018 13:23:32 GMT Server: Microsoft-IIS/7.5 WWW-Authenticate: Digest qop="auth",algorithm=MD5-sess,nonce="+Upgraded+v10b38d21e7aaf1202a77846a2fe9d2bd901d0c2cdcec5d30156158f0a13e8aeec6774eb0a8e77f7baeeac127503c4b3e86a776f449098b7a4",charset=utf-8,realm="Digest" WWW-Authenticate: Negotiate WWW-Authenticate: NTLM WWW-Authenticate: Basic realm="example.com" Content-Length: 1293 Content-Type: text/html Client-Date: Tue, 27 Mar 2018 13:23:32 GMT Client-Peer: xxx.xxx.xxx.xxx:port Client-Response-Num: 1 Client-SSL-Cert-Issuer: something Client-SSL-Cert-Subject: something Client-SSL-Cipher: ECDHE-RSA-AES256-SHA Client-SSL-Socket-Class: IO::Socket::SSL Title: 401 - Unauthorized: Access is denied due to invalid credentials. X-Powered-By: ASP.NET