class WebSocket::Driver::Draft75

def handshake_response
  upgrade =  "HTTP/1.1 101 Web Socket Protocol Handshake\r\n"
  upgrade << "Upgrade: WebSocket\r\n"
  upgrade << "Connection: Upgrade\r\n"
  upgrade << "WebSocket-Origin: #{@socket.env['HTTP_ORIGIN']}\r\n"
  upgrade << "WebSocket-Location: #{@socket.url}\r\n"
  upgrade << @headers.to_s
  upgrade << "\r\n"
  upgrade
end