Resuming app occasionally sticks at the event-loading stage

[ronhornbaker]

First of all, thanks for the great repo here - saved me a WHOLE lot of time! I've published my web app to both the App and Play stores, and it's working well, except for one problem:

Occasionally, perhaps 20% of the time on iOS, when resuming the app (clicking its icon after it was previously opened) it shows the index.html file with the event-loading div active, and never actually opens the LANDING_URL. It's very hard to reproduce the problem, so I haven't been able to catch any console errors yet.

Force-quitting the app and re-opening it is always successful, but asking users to do that isn't a great solution.

First of all, what causes the open app to go back to the index.html page - is it a function of time the app has been backgrounded? If I background the app and go back, within, say 5 minutes, it never fails to land me on the same view I left it in.

I don't mind it going back to the index.html page after an extended time away, but the stuck loading phase is driving me fairly crazy. Any tips to point me in the right direction would be appreciated.