fetching UIWebViews UserAgent

feature

- (void)viewDidLoad {
    self.webView = [UIWebView webViewWithUserAgent:@"Sakura"];
    self.webView.delegate = self;
    [self.webView loadRequest:request];
}

- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType{
    [UIWebView resetUserAgent];
    return YES;
}