title: How to clean the content of UIWebView without loading an empty page?
body: <p>I need to clean the content of UIWebView(in order to reuse it), but I have some authentication handling code in its delegate methods, so I do not want to load an empty page like about:blank to clean it, as it will trigger my authentication handling code. So is there a way for doing this?
  (also, by reusing it, I need to put a spinner on top of the web view, and when it loads another page, I don't want the user see the previous loaded page content, so that's why I need to clean it)</p>
  
  <p>Thanks!</p>