实现如下方法，还是没有效果，请问楼主这个问题有什么好的方法解决不？

• (void)URLSession:(NSURLSession *)session
  task:(NSURLSessionTask *)task
  willPerformHTTPRedirection:(NSHTTPURLResponse *)response
  newRequest:(NSURLRequest *)request
  completionHandler:(void (^)(NSURLRequest *))completionHandler
  {
  NSURLRequest *redirectRequest = request;

  if (completionHandler) {
  completionHandler(redirectRequest);
  }
  }

如果取消webview复用会有问题吗？

UIDelegate实现下面的逻辑试下

• (WKWebView *)webView:(WKWebView *)webView createWebViewWithConfiguration:(WKWebViewConfiguration *)configuration forNavigationAction:(WKNavigationAction *)navigationAction windowFeatures:(WKWindowFeatures *)windowFeatures {
  if (!navigationAction.targetFrame.isMainFrame) {
  [webView loadRequest:navigationAction.request];
  }
  return nil;
  }