Do not quote style.
Do not quote style.

A few references:

* https://github.com/emberjs/ember.js/issues/10783
* https://github.com/emberjs/ember.js/issues/10794
* http://emberjs.jsbin.com/hemaga/1/edit?html,js,output
funkensturm/ember-cli-file-picker,imanhodjaev/ember-cli-file-picker,imanhodjaev/ember-cli-file-picker,funkensturm/ember-cli-file-picker,ryanlabouve/ember-cli-file-picker,ryanlabouve/ember-cli-file-picker