title: shouldStartLoadWithRequest equivalent in WebKit framework?
body: <p>I'm trying to looking for an equivalent implement of <code>webView:shouldStartLoadWithRequest:navigationType:</code> in the WebKit framework (on Mac). </p>
  
  <p>I looked through <code>WebUIDelegate</code> &amp; <code>WebFrameLoadDelegate</code> but did not find anything useful.</p>
  
  <p>Any help is very much appreciated =). Thanks.</p>