New Twiddle

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  
  actions: {
   throwError() {
    throw new Error('errororor'); 
   }
  }
});

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('error');
  this.route('normal');
});

export default Router;

routes.error.js

import Ember from 'ember';

export default Ember.Route.extend({
  actions: {
  	error() {
    	alert('error'); 
    }
  }
});

routes.normal.js

import Ember from 'ember';

export default Ember.Route.extend({
  model() {
   throw new Error('hi im error?'); 
  }
});

templates.application-error.hbs

<div> im error</div>

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
<br>
<br>

<div {{action "throwError"}}>throw error</div>

{{link-to "normal" "normal"}}

templates.normal.hbs

<div> im norm</div>

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"
  }
}