对比跳转URL与页面URL的host，如果为跨域且未做处理，拦截该跳转，重新配置request的cookie信息，再loadRequest一下。（只适合加载mainFrame请求，iframe无效（注意））
-
(void)webView:(WKWebView *)webView decidePolicyForNavigationAction:(WKNavigationAction )navigationAction decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler {
NSURL currentURL = [NSURL URLWithString:self.pageUrl];if ((![self.crossDomainURL isEqualToString:navigationAction.request.URL.absoluteString]) && (![currentURL.host isEqualToString:navigationAction.request.URL.host])) {
self.crossDomainURL = navigationAction.request.URL.absoluteString; NSMutableURLRequest* request = [navigationAction.request mutableCopy]; NSString* cookieValue = @"session=720bff297ea3866696380368f81fc4e4;token_id=NzIwYmZmMjk3ZWEzODY2Njk2MzgwMzY4ZjgxZmM0ZTQ=;uid=123456;"; [request setValue:cookieValue forHTTPHeaderField:@"Cookie"]; [webView loadRequest:request]; decisionHandler(WKNavigationActionPolicyCancel);} else {
decisionHandler(WKNavigationActionPolicyAllow);
}
}
、
