HTTP HTTP GET HTTP CONNECT HTTP proxy proxytunnel HTTP/1.1 407 Proxy Authentication Required Proxy-Authenticate: Special realm="none", nonce="abc123" Content-Length: 13 Transfer-Encoding: chunked Magic-special: true some content http proxy HTTP CONNECT with proxy returning Content-Length and chunked http://test.example --proxy http://%HOSTIP:%HTTPPORT --proxytunnel -sS # Verify data after the test has been "shot" CONNECT test.example:80 HTTP/1.1 Host: test.example:80 User-Agent: curl/%VERSION Proxy-Connection: Keep-Alive 56