Ember Component preventDefault with click

application.controller.js

import Ember from 'ember';

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

application.template.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{click-test}}
{{outlet}}
<br>
<br>

click-test.component.js

import Ember from 'ember';

export default Ember.Component.extend({
  activeClass: 'is-active',
  attributeBindings: ['href'],
  href: 'javascript:',
  tagName: 'a',
  
  click(event) {
    alert('clicked');
    event.preventDefault();
  }
});

click-test.template.hbs

click me

twiddle.json

{
  "version": "0.4.16",
  "EmberENV": {
    "FEATURES": {}
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/2.1.0/ember.debug.js",
    "ember-data": "https://cdnjs.cloudflare.com/ajax/libs/ember-data.js/2.1.0/ember-data.js",
    "ember-template-compiler": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/2.1.0/ember-template-compiler.js"
  }
}