Change UIWebView User-Agent.

gistfile1.m

- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)req navigationType:(UIWebViewNavigationType)navigationType
{
    NSMutableURLRequest *request = (NSMutableURLRequest *)req;
    
    if ([request respondsToSelector:@selector(setValue:forHTTPHeaderField:)]) {
        [request setValue:@"Mozilla/5.0 (iPhone; U; CPU iPhone OS 3_0 like Mac OS X; en-us) AppleWebKit/528.18 (KHTML, like Gecko) Version/4.0 Mobile/7A341 Safari/528.16" forHTTPHeaderField:@"User_Agent"];
    }

    return YES;
}