WebSockets looks like an ideal way to pass data back and forth between the web client and server, the main potential stumbling block I can see here is setting the outgoing http headers from the CGI function… If anyone has done this please let me know…
This is being discussed in this thread:
http://www.digi.com/support/forum/35546/are-the-digi-modules-able-to-establish-web-socket-connection