V2 does not properly show "no experiments available" screen after batch cancellation

[JamesPHoughton]

The "No experiments available" screen displays properly if you start with a clean tajriba.json and have no batches available. But, if you start a batch and stop it again, the "no experiments available" screen is not displayed. Instead, participants see the consent screen, and then can progress through all the intro pages up until the lobby. Then they sit in the lobby indefinitely, even in a 1 player game.

This is tested in this cypress test, with results here.

[JamesPHoughton]

It seems like we may be getting the following error associated with this issue:

[deliberation-empirica] [2022-07-01 17:40:32] 17:40:32.776 WRN callbacks: introDone without game

If there is no game, we should throw a big error that alerts both the player and the admin, rather than just a warning?

[JamesPHoughton]

Believe this is fixed in Watts-Lab/deliberation-empirica#269