HTTP/1.1 401 Unauthorized
Server: GoAhead-Webs
Date: Thu Aug 17 01:46:14 2017
WWW-Authenticate: Digest realm="GoAhead", domain=":81",qop="auth", nonce="0226f7e42caa61d16d835f1717f7a475", opaque="5ccc069c403ebaf9f0171e9517f40e41",algorithm="MD5", stale="FALSE"
Pragma: no-cache
Cache-Control: ...