title: KarateDSL: Using proxy for UI automation, does not open url using that proxy
body: <p>I know the UI automation is in experimental state.</p>
  
  <p>When I am trying to open an url using proxy, its not opening the right version of the URL. Is this isn't supported yet? Or is there anything I am missing?</p>
  
  <pre><code>Background:
     * configure proxy = 'http://URL:PORT'
     * configure driver = { type: 'chrome', headless: false }
  ...
  
    Given driver &lt;url&gt;
    And driver.input("input[id=XYZ]", 'NAME')
  ...
  </code></pre>