Dear members,
We would like to remind that in order to initialize WebSocket connection with Intraday platform in accordance to documentation (https://developers.nordpoolgroup.com/reference/sockjs-protocol-in-depth#instructions-for-sockjs-client-implementation) you need to use endpoint /user/{serverId}/{sessionId}/websocket and provide both serverId and sessionId.
Connection without mentioned path parameters is highly discouraged.
Endpoint /user/websocket which some users might still use by accident might be decommissioned without a proper notice.