Ember #13169

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle'
});

router.js

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

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

Router.map(function() {
  this.route('colors', function() {
    this.route('color');
  });
  
  this.route('dogs');
});

export default Router;

routes.colors.color.js

import Ember from 'ember';

export default Ember.Route.extend({
});

routes.colors.js

import Ember from 'ember';

export default Ember.Route.extend({
  afterModel(){
  	return this.transitionTo('colors.color');
  }
});

routes.dogs.js

import Ember from 'ember';

export default Ember.Route.extend({
});

styles.app.css

body {
  margin: 12px 16px;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 12pt;
}

.active {
	color: green;
}

templates.application.hbs

<p>Since #13169 the active class is missing if route redirects to a child route</p>

<ul>
	<li>Click on "Dogs"</li>
  <li>Dogs is active</li>
 	<li>Click on "Colors"</li>
  <li>Dogs is STILL active</li>
</ul>

{{#link-to 'index'}}Index{{/link-to}}
{{#link-to 'dogs'}}Dogs{{/link-to}}
{{#link-to 'colors'}}Colors{{/link-to}}

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": "beta",
    "ember-data": "https://cdnjs.cloudflare.com/ajax/libs/ember-data.js/2.4.3/ember-data.js",
    "ember-template-compiler": "beta"
  }
}