title: Angular2 Trigger router.navigate to refresh a page
body: <p>I have noticed that using :</p>
  
  <p><code>router.navigate(['my-route'])</code> doesn't work if I am already on <code>'my-route'</code></p>
  
  <p>However, I am looking to refresh the component if I am already on the its route.</p>
  
  <p>What's the best way to achieve this ?</p>