**Summary** * Server needs to limit max size message sent from client using [`maxPayload`](https://github.com/websockets/ws/blob/master/doc/ws.md#new-websocketserveroptions-callback) * need to limit the number of pending connections `backlog` * need to limit the total connection count More on security: *. [heroku websocket](https://devcenter.heroku.com/articles/websocket-security)
Summary
maxPayloadbacklogMore on security:
*. heroku websocket