WEBSOCKET
The WebSocket Protocol, as described in IETF RFC6455. Note: in most cases, Websocket flows are classified over HTTP. In some rare cases - when there is an indication in the SNI - the flow will be classified over HTTPS.
Available to all SRX running 12.3X48+
Available to all MX running 20.2R1+
Available to all vSRX running 20.3R1+