UIWebView and shadow

Last time I was trying to add a shadow to UIWebView. And it wasn't so obvious, because the standard way didn't work:

    webView.layer.shadowRadius = 8;

    webView.layer.shadowOffset = CGSizeMake(0, 0);

    webView.layer.shadowColor = [[UIColor grayColor] CGColor];

    webView.layer.shadowOpacity = 1;

But there is a simple solution. You just have to add these 2 lines: