Ember fastboot works with at http api host but not an https one

import DS from 'ember-data';

export default DS.JSONAPIAdapter.extend({
  host: 'http://ift.tt/2pIZnAl',

  // host: 'http://ift.tt/2qq9ypw'
});

The regular host works, but when I use https I get this error:

Error: The adapter operation was aborted
at EmberError.AdapterError (/home/nick/the-apothecary-shoppe/portal-ember/tmp/broccoli_merge_trees-output_path-http://ift.tt/2pIYhEO)
at EmberError.ErrorClass (/home/nick/the-apothecary-shoppe/portal-ember/tmp/broccoli_merge_trees-output_path-http://ift.tt/2qqbMW7)
at ajaxError (/home/nick/the-apothecary-shoppe/portal-ember/tmp/broccoli_merge_trees-output_path-http://ift.tt/2pIURBP)
at Object.hash.error (/home/nick/the-apothecary-shoppe/portal-ember/tmp/broccoli_merge_trees-output_path-http://ift.tt/2qpVn3K)
at fire (/home/nick/the-apothecary-shoppe/portal-ember/node_modules/jquery-deferred/lib/jquery-callbacks.js:78:30)
at Object.fireWith (/home/nick/the-apothecary-shoppe/portal-ember/node_modules/jquery-deferred/lib/jquery-callbacks.js:188:7)
at Object.fire [as reject] (/home/nick/the-apothecary-shoppe/portal-ember/node_modules/jquery-deferred/lib/jquery-callbacks.js:195:10)
at ClientRequest.onError (/home/nick/the-apothecary-shoppe/portal-ember/node_modules/najax/lib/najax.js:208:9)
at emitOne (events.js:96:13)
at ClientRequest.emit (events.js:188:7)
at TLSSocket.socketErrorListener (_http_client.js:309:9)
at emitOne (events.js:96:13)
at TLSSocket.emit (events.js:188:7)
at emitErrorNT (net.js:1281:8)
at _combinedTickCallback (internal/process/next_tick.js:80:11)
at process._tickCallback (internal/process/next_tick.js:104:9)

Any thoughts why? this is seriously befuddling me.