Conceptually, WebSocket is really just a layer on top of TCP that
   does the following:

   o  adds a web origin-based security model for browsers

   o  adds an addressing and protocol naming mechanism to support
      multiple services on one port and multiple host names on one IP
      address

   o  layers a framing mechanism on top of TCP to get back to the IP
      packet mechanism that TCP is built on, but without length limits

   o  includes an additional closing handshake in-band that is designed
      to work in the presence of proxies and other intermediaries