unable to display included data

i'm fetching data in JSON API format with the Ember Data and JSONAPIAdapter on my Route - this is working fine

// ok 

/posts/1

this.store.findRecord('posts', params.post_id);

i'm now trying to load included data using ds-finder-include, the data is getting fetched, but isn't reflecting in the .hbs

http://ift.tt/2pG9h4g

// not working    

/posts/1/comments

this.store.findRecord('posts', params.post_id, { include: 'comments' });

hbs:

     comment: