Websocket - auto reconnect on clean close events

[alan-bio]

In order to make our websocket more robust on the client, we'd like to be able to automatically reconnect to the websocket on clean close events to avoid having our components etc needing to resubscribe to the websocket subject.

Maybe this could be done by having a custom close event handler for the websocket or something? Or putting close events on the error stream?

[alan-bio]

repeatWhen is probably good enough for us for now.
This will allow us to reconnect on clean close events.