Integration Server 10.11 | Integration Server Administrator's Guide | Configuring WebSockets | Limitations When Using WebSocket Protocol in Integration Server
 
Limitations When Using WebSocket Protocol in Integration Server
Integration Server WebSocket module does not support the following with Websockets:
*Authentication with JWT (JSON Web Token)
*Reverse proxy and forward proxy
*Async send support (only blocking send will be supported)
*Partial message support with WebSockets
*Ping/Pong frame
*Reverse invoke