key press action has no access to event

application.controller.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName:'Ember Twiddle',
  actions: {
    keyUp() { console.log( "ku:", arguments) },
    keyPress() { console.log( "kp:", arguments) },
    keyDown() { console.log( "kd:", arguments) },
    mouseEnter() { console.log( "me:", arguments) },
    mouseLeave() { console.log( "ml:", arguments) }
  }
  // https://github.com/emberjs/ember.js/issues/11678#issuecomment-133451066
});

application.template.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{text}}
<br>
{{input 
	key-up="keyUp" 
  key-press="keyPress" 
  key-down="keyDown"
  mouse-enter="mouseEnter"
  mouse-leave="mouseLeave"
  autocomplete="off"}}
<br>
<br>

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"
  }
}