title: How to retrieve HTML content from WebView (as a string)
body: <p>How do I retrieve all HTML content currently displayed in a WebView?</p>
  
  <p>I found <code>WebView.loadData()</code> but I couldn't find the opposite equivalent (e.g. WebView.getData())</p>
  
  <p>Please note that I am interested in retrieving that data for web pages that I have no control over (i.e. I cannot inject a Javascript function into those pages, so that that it would call a Javascript interface in WebView).</p>