title: The selected node does not have a form ancestor - Mink error
body: <p>I'm trying to perform tests on my Magento installation using Mink with Goutte driver, and it fails when I'm trying to use <code>click()</code> or <code>press()</code> functions on a button.</p>
  
  <p>Code:</p>
  
  <pre><code>$page = $this-&gt;getSession()-&gt;getPage();
      $checkout = $page-&gt;find('css', '.btn-proceed-checkout');
      $checkout-&gt;click();
  </code></pre>
  
  <p>How to get this work? Why does Mink actually need a form to click a button element? Or is that the problem connected with Goutte not being able to fetch JS?</p>