Adding X-Forwarded-Host headers in reverse proxy

[alejandroliu]

Can you add a X-Forwarded-Host header to reverse proxy functionality?

This can be used for the case that the backend web server has virtual hosts or to do http->https redirection tricks.

This can be achieved easily by adding in server.go after line 105:

r.Header.Add("X-Forwarded-Host", r.Host)

[lwiechec]

that would be great !