How to tell the difference between an iframe loading vs. entire page loading in a UIWebView?

Question

In the [webView:shouldStartLoadWithRequest:navigationType:] event, how can you tell the difference between an iframe that\'s loading content vs. the entire page loading content?

Answer 1

 (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType
{

BOOL isFrame = ![[[request URL] absoluteString] isEqualToString:[[request mainDocumentURL] absoluteString]];

}