Is your feature request related to a problem? Please describe.
I was coding a program in C using the winsock library, this requires met to create a message string in which the HTTP code gen helped me loads but it starts to become a problem when you need to escape the \r and \n. Also the generated code that the HTTP code generate suggested didn't work because of the content length not being there

Describe the solution you'd like
add an option to see line endings and add the content-length

Additional context
"POST / HTTP/1.1\r\nHost: 127.0.0.1\r\nContent-Type: application/json; charset=utf-8\r\nContent-Length: 10\r\n\r\n{"test":1}\r\n