HTTP/1.1 503 Service Unavailable
Content-Type: text/html; charset=us-ascii
Server: Microsoft-HTTPAPI/2.0
Date: Tue, 28 May 2024 03:08:12 GMT
Connection: close
Content-Length: 326

HTTP/1.1 407 Proxy Authentication Required
Proxy-Authenticate: Digest realm="proxy", nonce="6657e47c", qop="auth"
Content-Type: text/html
Cache-Control: no-cache
Content-Length: 166