HTTP/1.1 401 Unauthorized
WWW-Authenticate: Digest realm="http-auth@example.org",qop="auth",nonce="7ypf/xlj9XXwfDPEoM4URrv/xwf94BcCAzFZH4GiTo0v",opaque="FQhe/qaU925kfnzjCev0ciny7QMkPqMAFRtzCUYo5tdS",stale=false,algorithm=SHA-256
Content-Type: text/plain
Content-Length: 19

 401 Unauthorized
