WKWebView 点击链接无效

-(WKWebView *)webView:(WKWebView *)webView createWebViewWithConfiguration:(WKWebViewConfiguration *)configuration forNavigationAction:(WKNavigationAction *)navigationAction windowFeatures:(WKWindowFeatures *)windowFeatures

{

NSLog(@"createWebViewWithConfiguration");

if (!navigationAction.targetFrame.isMainFrame) {

[webView loadRequest:navigationAction.request];

}

return nil;

}