title: How to lazy load a route as a child route/component
body: <p>Let's take a look at my plunker: <a href="https://plnkr.co/edit/22RIoGsvzfw2y2ZTnazg?p=preview" rel="noreferrer">https://plnkr.co/edit/22RIoGsvzfw2y2ZTnazg?p=preview</a></p>
  
  <p>I want to lazy load a Module as a child-route.</p>
  
  <p>So the route <code>/lazy</code> should render the  <code>LazyModule</code> into the <code>&lt;router-outlet&gt;</code> of my <code>MainComponent</code>.</p>
  
  <p>Then it will switch between that <code>DummyComponent</code> and the lazy loaded Module.</p>
  
  <p>Instead now that lazy loaded Module will be rendered into the <code>AppComponent</code>..</p>
  
  <p>Any ideas?</p>