title: ios12-Get set-cookie from NSHTTPURLResponse
body: <p>I got set-cookie in decidePolicyForNavigationResponse method before like this:</p>
  
  <pre class="lang-oc prettyprint-override"><code>- (void)webView:(WKWebView *)webView decidePolicyForNavigationResponse:(WKNavigationResponse *)navigationResponse decisionHandler:(void (^)(WKNavigationResponsePolicy))decisionHandler{
         NSHTTPURLResponse *response = (NSHTTPURLResponse *)navigationResponse.response;
         self.response = response;
  }
  </code></pre>
  
  <p>But in ios12 navigationResponse in this method cannot get set-cookie again.Can I have other method to replace it? Or is there any other method that I can get set-cookie on page? If you cannot understand please let me know. Thank you~</p>