title: Clickable div inside a button doesn't work on firefox
body: <p>I have a expandable section which is a button (this is from a framework that I can not change). And inside this section, I got a clickable div. This is working on Chrome, IE, Safari, but not on Firefox.</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;button onclick="alert('expand');" class="button"&gt;
     &lt;div onclick="alert('Edit');" class="edit"&gt;Edit&lt;/div&gt;&lt;br/&gt;
  &lt;/button&gt;</code></pre>
  </div>
  </div>
  </p>
  
  <p><a href="https://jsfiddle.net/dLbkq6uy/1/" rel="nofollow noreferrer">https://jsfiddle.net/dLbkq6uy/1/</a></p>
  
  <p>I can't fire the click event for the DIV inside this button on Firefox. </p>