Ember Checkbox with Submit action

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  filterPaneEnabled: false,
  filterPaneEnabled2: false,

  actions: {
    form2submitted() {
      console.log('form 2 submitted');
    } 
  }
});

templates.application.hbs

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

<h2>No Action (Working)</h2>
<form name="form1">
<label for="filterPaneCheckbox">
            {{input type="checkbox" id="filterPaneCheckbox" checked=filterPaneEnabled }} Enable filter ({{filterPaneEnabled}})
</label>
</form>

<h2>Action (Not working)</h2>
<form name="form2" {{action 'form2submitted'}}>
<label for="filterPaneCheckbox2">
            {{input type="checkbox" id="filterPaneCheckbox2" checked=filterPaneEnabled2 }} Enable filter ({{filterPaneEnabled2}})
</label>
</form>
<br>
<br>
{{outlet}}
<br>
<br>

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": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/2.4.4/ember.debug.js",
    "ember-data": "https://cdnjs.cloudflare.com/ajax/libs/ember-data.js/2.4.3/ember-data.js",
    "ember-template-compiler": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/2.4.4/ember-template-compiler.js"
  }
}