ajaxorg/cloud9 — Issue #619: Switch to port 843 for WebSockets
Author: sergi
Created: 2011-12-05 13:27:12+00:00
State: open
Labels: blocking, bug, console

Lots of firewall and antivirus software block websockets on port 80. It looks like switching to port 843 for WebSockets solves most of these problems.

https://github.com/LearnBoost/socket.io/wiki/Socket.IO-and-firewall-software