Contextual Component Error

application.controller.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName:'Ember Twiddle',
  bar: 'baz',
  
  actions: {
  	changeBar() {
     	this.set('bar', `foobarbaz ${Math.random()} !`)
    }
  }
});

application.template.hbs

<h1>Welcome to {{appName}}</h1>
<br>
{{#my-component as |my|}}
  Bar = {{my.yielded foo=bar}}
{{/my-component}}

<button {{action 'changeBar'}}>Change Foo</button>

my-component.component.js

import Ember from 'ember';

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

my-component.template.hbs

{{yield
  (hash
    yielded=(component 'my-yielded-component')
  )
}}

my-yielded-component.component.js

import Ember from 'ember';

export default Ember.Component.extend({
  tagName: 'span',
  
  foo: '',
  baz: Ember.computed.alias('foo')
});

my-yielded-component.template.hbs

{{baz}}

twiddle.json

{
  "version": "0.5.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "release",
    "ember-data": "https://cdnjs.cloudflare.com/ajax/libs/ember-data.js/2.2.0/ember-data.js",
    "ember-template-compiler": "release"
  }
}