Btw if you try to set the HTTP version to something absurd like 1.6, the server will still return 200 OK. I really read the spec. ;) 505 is only meant for major versions, and the HTTP version that appears in the server's response can also signal the maximum HTTP minor version it can support (so if you sent a HTTP/1.0 request and the server responds with HTTP/1.1 before the status code, it's telling you that it can support HTTP/1.1, and vice versa)! HTTP/1 is really ahead of its time