Michael Lange 631fe68339 Never return null for adapter headers ...

Ember Data checks strictly against undefined:
https://github.com/emberjs/data/blob/master/addon/adapters/rest.js#L1128

2017-10-19 10:10:01 -07:00

..

tokens.js

Never return null for adapter headers

2017-10-19 10:10:01 -07:00