title: WKWebView cannot trigger ajax to load a file on local
body: <p>I embed all html in WKWebView, all works until I recognize that WKWebView cannot load a xml file on the local</p>
  
  <pre>
  
  $.ajax({
          type: "GET",
          url: "tags.xml",
          dataType: "xml",
          cache: false,
          success: function(xml) {
  
          },
          error: function() {
  
              alert("An error occurred while processing XML file.");
          }
      });
  
  </pre>
  
  <p>my code for UIWebView</p>
  
  <pre>
  //urlFolder is located locally in a temporary file: tmp/www/htmlFolder 
  //urlFile is located in the urlFolder: tmp/www/htmlFolder/index.html
  //xml file is located in the urlFolder: tmp/www/htmlFolder/tags.xml
  
  
  WKWebViewConfiguration *theConfiguration = [[WKWebViewConfiguration alloc] init];
      _webView = [[WKWebView alloc] initWithFrame:self.view.frame configuration:theConfiguration];
      [_webView loadFileURL:urlFile allowingReadAccessToURL:urlFolder];
  
      [self.view addSubview:_webView];
  </pre>
  
  <p>Note: I am using XCode7.1 Beta, Objective-C, ios9.1, WKWebView</p>