It seems like the path Angular uses for the its websocket in the dev build has changed.
Angular 12 & earlier: ws://localhost:4200/websocket
Angular 13: ws://localhost:4200/ws
This causes our app a problem because we use /ws for a websocket connection with our backend. We connect to our backend via a proxy, so the connection with both our server and Angular is ws://localhost:4200/ws. The path gets proxied, so Angular live-reload does not work.
Can the Angular websocket endpoint be configured?