HTML and CSS Reference
Using WebSocket Secure (WSS) increases the odds that connections will succeed
even when there are middleboxes on the network performing transparent inspection and
modification of outgoing connections.
Figure 8-3 further illustrates the cases where the WebSocket connection may or
may not succeed depending on a combination of variables such as plain WebSocket
Protocol vs. WebSocket Secure and explicit proxy configuration as well as transparent
Figure 8-3. How WebSocket interacts with proxy servers
As you can see in Figure 8-3 , using WSS can dramatically increase the chances that
your WebSocket connection will succeed, even when the traffic has to traverse explicit
and transparent proxies.