[iOS] Re-opening Safari app causes TokenMismatchException when logging in

I get a lot of TokenMismatchExceptions, simply because of iOS' Safari app not refreshing the CSRF token when re-opening the app.

Scenario:

1. Log out
2. Close Safari app on login view
3. Open Safari app (no manual refresh)
4. Login
5. TokenMismatchException

How do I catch this before the error occurs? Forcing a page refresh, somehow?