Transition To Bug

controllers.application.js

import Ember from 'ember';

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

controllers.login.js

import Ember from 'ember';

export default Ember.Controller.extend({
  queryParams: ['security_key']
});

router.js

import EmberRouter from '@ember/routing/router';
import config from './config/environment';

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

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

export default Router;

routes.index.js

import Ember from 'ember';
import { inject as service } from '@ember/service';

export default Ember.Route.extend({
  auth: service(),
  
  beforeModel() {
  	this.auth.ensureSignedIn();
	}
});

routes.login.js

import Ember from 'ember';

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

services.auth.js

import Ember from 'ember';
import { inject as service } from '@ember/service';

export default Ember.Service.extend({
  router: service(),
  
  ensureSignedIn() {
    this.router.transitionTo("login", { queryParams: { security_key: 's3cr3t' }});
  }
});

templates.application.hbs

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

twiddle.json

{
  "version": "0.15.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js",
    "ember": "3.4.3",
    "ember-template-compiler": "3.4.3",
    "ember-testing": "3.4.3"
  },
  "addons": {
    "ember-data": "3.4.2"
  }
}