.tern-project file not being used



I am trying to use a .tern-project file to load gsap libraries for autocomplete purposes.
I am using loadEagerly with a path to TweenMax.js (which contains the other classes).
This works in atom, but I like the idea of a cloud workspace, so I am trying to switch to cloud9.

Is this a bug or a missing feature?
If it’s missing I’d be happy to look into adding it.

Thanks in advance,