deferred-transision

router.js

import Ember from 'ember';
import config from './config/environment';

const Router = Ember.Router.extend({
  location: 'none',
  rootURL: config.rootURL
});

Router.map(function() {
  this.route('one');
  this.route('two');
});

export default Router;

routes.application.js

import Ember from 'ember';

export default Ember.Route.extend({
  actions: {
  	willTransition(transition) {
      if (this.get('pendingTransition.targetName') == transition.targetName) {
        this.set('pendingTransition', null);
        return true;
      }
			
      console.log(transition)
      this.set('pendingTransition', transition);
      transition.abort();

      Ember.run.later(() => {
        transition.retry();
      }, 1000);
    }
  }
});

templates.application.hbs

{{#link-to 'one'}}one{{/link-to}}
{{#link-to 'two'}}two{{/link-to}}
<br>
{{outlet}}

templates.one.hbs

<p>One</p>

templates.two.hbs

<p>Two</p>

twiddle.json

{
  "version": "0.12.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.12.0",
    "ember-template-compiler": "2.12.0",
    "ember-testing": "2.12.0"
  },
  "addons": {
    "ember-data": "2.12.1"
  }
}