HTTP HTTP proxy --request-target # # Server-side HTTP/1.1 200 OK Date: Sat, 29 Feb 2020 16:10:44 GMT Server: Blafasel/1.1 Last-Modified: Sat, 29 Feb 2020 16:10:44 GMT Content-Length: 0 Connection: close Content-Type: text/html # # Client-side http Send "OPTIONS *" with --request-target to a proxy proxy --request-target '*' -X OPTIONS --proxy http://%HOSTIP:%HTTPPORT/ -H "Testno: 1613" http://www.example.org/ OPTIONS * HTTP/1.1 Host: www.example.org User-Agent: curl/%VERSION Accept: */* Proxy-Connection: Keep-Alive Testno: 1613