Ember / browser refresh button / reload entire site / resetting everything. How to override that behavior?

Apparently when you hit the refresh button, the browser reloads the entire site (with all the scripts), resetting everything, including the "loggedInUser" I put in the application controller.... Is it the browser thing? Or ember thing?

How to stop any of them / both to just stop doing that...? Or should I take the non-trivial route of storing stuffs in browser local storage, etc? Really?

Thanks, Raka