title: Clear UIWebView Content without a webViewDidFinishLoad delegate callback
body: <p>I am looking for a way to clear a UIWebView content.  However I do not want the webViewDidFinishLoad to get called.  Not implementing UIWebViewDelegate is not an option for me in this case.</p>
  
  <p>loadHTMLString and loadRequest with empty data won't work for me since this will trigger the webViewDidFinishLoad callback.</p>
  
  <p>Using stringByEvaluatingJavaScriptFromString: (as suggested in this <a href="https://stackoverflow.com/questions/2933315/clear-uiwebview-content-upon-dismissal-of-modal-view-iphone-os-3-0/4127520#4127520">SO</a>) will not trigger the callback.  But if the content was a PDF format, this would not clear the UIWebView' s content which I do need it to.  </p>
  
  <p>Any idea?</p>