nuked parent route

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('page', function() {
    this.route('show');
  });
});

export default Router;

routes.index.js

import Ember from 'ember';

export default Ember.Route.extend({
	activate() {
    this.transitionTo('page.show');
  }/*,*/
  
//   beforeModel() {
//     this.transitionTo('page.show');
//   },
  
//   model() {
//     this.transitionTo('page.show');
//   },
  
//   afterModel() {
//     this.transitionTo('page.show');
//   }
});

routes.page.js

import Ember from 'ember';

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

routes.page.show.js

import Ember from 'ember';

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

templates.application.hbs

<h1>Cageplication</h1>
    
{{#link-to 'page.index' tagName="button"}}Page.index{{/link-to}}
{{#link-to 'page.show' tagName="button"}}Page.show{{/link-to}}
    
{{outlet}}

templates.index.hbs

<p>This should never be rendered.</p>

templates.page.hbs

{{#link-to 'index' tagName="button"}}Index{{/link-to}}
    
<p>Watch me disappear when you navigate to Index! I am a part of the <code>page</code> template.</p>
    
{{outlet}}

templates.page.index.hbs

<pre>I am the page/index route.</pre>
<img src="http://www.placecage.com/c/400/400">

templates.page.show.hbs

<pre>I am the page/show route.</pre>
<img src="http://www.placecage.com/400/400">

twiddle.json

{
  "version": "0.7.2",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "3.4.1",
    "ember-template-compiler": "3.4.1"
  }
}