Refresh google token every 10 minutes
Created by: cschloer
Kind of hard to test, but you can print out "localStorage" to see the value of "ed". If you stay on the same page, every 10 minutes that datetime value should update to be 60 minutes in the future again. If you are switch between pages every < 10 min the token should get refreshed when there are 15 minutes left in the expiration date (ed).