title: Add parameter to url in WebView
body: <p>In my app a webpage is loaded in a webview. With <code>shouldOverrideUrlLoading()</code> I can open links on that page in the same webview. But is there a way to append on all links a parameter like <code>&amp;mode=app</code> every time when this specific url is loaded?
  All urls with e.g. <code>example.com</code> should look like <code>example.com?mode=app</code> and all other urls should stay how they are.</p>
  
  <p>Is this possible?</p>