title: Ember-data.js 500 status code
body: <p>Is there any way to handle 500 status error, when creating a new model e.g</p>
  
  <pre><code>var model = this.store.createRecord('user');
  model.save().then(function() {
  
  }, function(error) {
  // this callback will not be executed if 500 status response
  });
  </code></pre>
  
  <p>However, I can catch it using <code>becameError</code> event on model, but in this case an error object will not be available.</p>
  
  <p>Thanks for your answers.</p>