Webview have request is nil when call createWebViewWithRequest

 I meet a problem which weview load link that will get nil

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- (WebView*)webView:(WebView *)sender createWebViewWithRequest:(NSURLRequest *)request
{
    [[sender mainFrame]loadRequest:request];
    return sender;
} 

After much investigation,I found that the problem was caused by '_blank'.

you can use this method to solve this problem

 [webView setPolicyDelegate:self];

- (void)webView:(WebView *)webView decidePolicyForNewWindowAction:(NSDictionary *)actionInformation
        request:(NSURLRequest *)request
   newFrameName:(NSString *)frameName
decisionListener:(id<WebPolicyDecisionListener>)listener
{
    [[myWeb mainFrame] loadRequest:[NSURLRequest requestWithURL:[request URL]]];
}