title: Copy webview instance to other uiwebview instance
body: <p>I have a webview and I need to copy to a uiwebview variable or instance. But it's crashing at that point.</p>
  
  <p>The crash is:</p>
  
  <blockquote>
    <p>[uiwebview copywithZone:] unrecognized selector sent.</p>
  </blockquote>