Server side proxy for divshot not rendering JSON api in Ember app

I can start my ember/rails server by running ember serve --proxy http://localhost:3000.

I have create a divshot account in order to push this app to a production server but am having trouble passing in the url to my json api.

//divshot.json
{
  "name": "project-name",
  "root": "./dist",
  "routes": {
    "/tests": "tests/index.html",
    "/tests/**": "tests/index.html",
    "/**": "index.html"
  },
  "proxy": {
    "origin": "http://ift.tt/1A1gNRF"
  }
}

//environment.js
/* jshint node: true */

module.exports = function(environment) {
  var ENV = {
    modulePrefix: 'project-name',
    environment: environment,
    baseURL: '/',
    locationType: 'auto',
    EmberENV: {
      FEATURES: {
        // Here you can enable experimental features on an ember canary build
        // e.g. 'with-controller': true
      }
    },

    APP: {
      // Here you can pass flags/options to your application instance
      // when it is created
    }
  };

  if (environment === 'development') {
    // ENV.APP.LOG_RESOLVER = true;
    // ENV.APP.LOG_ACTIVE_GENERATION = true;
    // ENV.APP.LOG_TRANSITIONS = true;
    // ENV.APP.LOG_TRANSITIONS_INTERNAL = true;
    // ENV.APP.LOG_VIEW_LOOKUPS = true;
  }

  if (environment === 'test') {
    // Testem prefers this...
    ENV.baseURL = '/';
    ENV.locationType = 'none';

    // keep test console output quieter
    ENV.APP.LOG_ACTIVE_GENERATION = false;
    ENV.APP.LOG_VIEW_LOOKUPS = false;

    ENV.APP.rootElement = '#ember-testing';
  }

  if (environment === 'production') {

  }

  return ENV;
};

How can I push an app to divshot and use the api I have hosted elsewhere?