Ember routing non-root domain

I am using the ember quick-start tutorial app. Everything works great locally, but when deployed to a test environment the app is 404ing on loading all resources.

I am deployed to a subfolder out somewhere and apparently ember is trying to find it against the root domain, instead of subfolder

Example: http://ift.tt/1Trzjwr The assets folder is obviously under http://ift.tt/24x9QNr, but on load it's trying to grab it from http://ift.tt/1oTEzAu which doesn't exist

How can I have ember use relative paths in this case?