normalize issue

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  response: '{"data":{"id":"35","type":"file-upload","attributes":{"file":"http://example.com/somefile"}, "relationships":{}}}',
  data: null,
  normal: null,
  objPush: null,
  objPushPayload: null,
  actions: {
		save: function() {
    	var response = this.get("response");
      var data = JSON.parse(response);
      this.set("data", JSON.stringify(data, null, 4));
      console.log(data);
 
      this.store.pushPayload(data);
  	  var obj = this.store.peekRecord("file-upload", 35);
  		this.set("objPushPayload", obj);
 
      // I believe the following should work as well:
      //var normal = this.store.normalize("file-upload", data);
 
      
      var normal = this.store.normalize("file-upload", data.data);
      console.log(normal);
      this.set("normal", JSON.stringify(normal, null, 4));
      var objPush = this.store.push(normal);
      this.set("objPush", objPush);
  
    }
  }
});

models.file-upload.js

import DS from 'ember-data';

export default DS.Model.extend({
  file: DS.attr("string")
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
<h4>The inserted object via store.push(store.normalize)</h4>
{{objPush.file}}
<h4>The inserted object via store.pushPayload, store.peekRecord)</h4>
{{objPushPayload.file}}
<hr>
<button {{action "save"}}>Normalize</button>
<hr>
<h2>Response</h2>
<code>
{{response}}
</code>
<h2>Parsed</h2>
<pre>
{{data}}
</pre>
<h2>Normalized</h2>
<pre>
{{normal}}
</pre>
<br>
<br>

twiddle.json

{
  "version": "0.7.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/2.4.3/ember.debug.js",
    "ember-data": "https://cdnjs.cloudflare.com/ajax/libs/ember-data.js/2.4.3/ember-data.js",
    "ember-template-compiler": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/2.4.3/ember-template-compiler.js"
  }
}