I got a deprecation message when running my app: DEPRECATION: Using the Ember.Location.registerImplementation is no longer supported. Register your custom location implementation with the container instead.. The code is in the app.js.
It is for the hashbang functionality, and I saw someone already written a nice implementation for that: https://stackoverflow.com/a/23055007/1153884
So I literally copied and pasted that code. But after fiddling I could not get it to work. It is because App.register trows an error: Uncaught TypeError: undefined is not a function

I have also tested with App.__container__.register. However that does also not work. Is there something changed with the latest Ember CLI that I am not aware of?