Duplicate `index.loading`

controllers.index.js

import Ember from 'ember';

export default Ember.Controller.extend({
  isProfilePageShown: Ember.computed('eUsername', function(){
    if(this.get('eUsername')){
      return true;       	  
    }
    else{
    	return false;            
    }
  }),
       
  isHomePageShown: Ember.computed('isProfilePageShown', function(){
    if(this.get('isProfilePageShown')){
      return false;       	  
    }
    else{
    	return true;            
    }
  })
});

router.js

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

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

Router.map(function() {
  // BOTH '/' and '/user123' do not work anymore :( 
  
  this.route('index'); 		// Uncaught UnrecognizedURLError {message: "/", name: "UnrecognizedURLError"}
  this.route('index',{path:':u_name'}, function (){});
});

export default Router;

routes.index.js

import Ember from 'ember';

export default Ember.Route.extend({
	model(params){
    var vUsername = params.u_name;
    
    if(vUsername){
			var indexController = this.controllerFor('index');
      indexController.set('eUsername', vUsername);
  		alert(vUsername);
    }
		else{
    	alert("No Username found!");
    }
  }
  
});

templates.index.hbs

{{#if isHomePageShown}}
	You are now in Homepage. Click to go to Login(disabled)
{{/if}}
  
{{#if isProfilePageShown}}
	PROFILE PAGE OF {{eUsername}}
{{/if}}

twiddle.json

{
  "version": "0.10.6",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.9.0",
    "ember-data": "2.9.0",
    "ember-template-compiler": "2.9.0",
    "ember-testing": "2.9.0"
  },
  "addons": {}
}