RxJS version:
master branch
Code to reproduce:
https://github.com/ReactiveX/rxjs/blob/master/src/observable/dom/WebSocketSubject.ts#L67
Expected behavior:
The second argument to the constructor would be used somewhere
Actual behavior:
It is not used
Additional information:
I'm thinking the ReplaySubject should be subscribed to the destination argument being passed in so it gets its values.