What does HS: URI missing Mean?

[nonlin]

The same URI works via a chrome extension to test the websocket server but the same URI throws that error via this plugin.

[nonlin]

Well I still don't know what it means exactly but the issues seems to be that if there was too much network traffic on the websocket, it was hard for it to join (not something that was an issue for other websocket clients but this plugin or unreals native websocket code) Stopping the network traffic allowed it to connect.