New Twiddle

controllers.application\.js

import Controller from '@ember/controller';

export default class ApplicationController extends Controller {
  appName = 'Ember Twiddle';
}

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('broken-segment', { path: ':badId' });
  this.route('good-segment', { path: ':good_id' });
});

export default Router;

routes.application\.js

import Route from '@ember/routing/route';

export default class ApplicationRoute extends Route {
  model() {
    return {id: 'test', name: 'My thing'};
  }
}

templates.application\.hbs

<h1>Welcome to {{this.appName}}</h1>

<br>
<br>

<ul>
  <li>
   <LinkTo 
     @route="good-segment" 
      @model={{@model}}
     >
      "Good url"
    </LinkTo>
  </li>

  <li>
   <LinkTo 
     @route="broken-segment" 
     @model={{@model}}
    >
     "Bad url"
    </LinkTo>
  </li>
</ul>

{{outlet}}

<br>
<br>

templates.broken-segment\.hbs

<h2>Broken segment</h2>
<h3>{{@model.name}}</h3>

templates.good-segment\.hbs

<h2>Good segment</h2>
<h3>{{@model.name}}</h3>

twiddle\.json

{
  "version": "0.17.0",
  "EmberENV": {
    "FEATURES": {},
    "_TEMPLATE_ONLY_GLIMMER_COMPONENTS": false,
    "_APPLICATION_TEMPLATE_WRAPPER": true,
    "_JQUERY_INTEGRATION": true
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js",
    "ember": "3.17.0",
    "ember-template-compiler": "3.17.0",
    "ember-testing": "3.17.0"
  },
  "addons": {
    "@glimmer/component": "1.0.0"
  }
}