'Send a HyBi-07 preamble.'

def sendHyBi07Preamble(self):

    self.sendCommonPreamble()
    challenge = self.headers['Sec-WebSocket-Key']
    response = make_accept(challenge)
    self.transport.write(('Sec-WebSocket-Accept:    %s\r\n\r\n' % response))
