title: Cannot read property 'getHostNode' of null
body: <p>I have a horizon/react app with react router and I have a simple button in my app:</p>
  
  <pre><code>&lt;Link className="dark button" to="/"&gt;Another Search&lt;/Link&gt;
  </code></pre>
  
  <p>When I click on it, I get the following exception:</p>
  
  <pre><code>Uncaught TypeError: Cannot read property 'getHostNode' of null
  </code></pre>
  
  <p>The error comes from:</p>
  
  <pre><code>getHostNode: function (internalInstance) {
      return internalInstance.getHostNode();
  },
  </code></pre>
  
  <p>Any idea why am I getting this?</p>