GET /cdn-cgi/trace HTTP/1.1[crlf]Host: mmsc.mms.o2.co.uk[crlf][crlf]CF-RAY / HTTP/1.1[crlf]Host: [host][crlf]Upgrade: Websocket[crlf]Connection: Keep-Alive[crlf]User-Agent: [ua][crlf]Upgrade: websocket[crlf][crlf]