title: com.apple.WebKit.WebContent drops 113 error: Could not find specified service
body: <p>I am using <strong>WKWebView</strong> for viewing custom HTML. </p>
  
  <ul>
  <li>Regardless of HTML content, when testing on real device, I receive the following error <code>Could not signal service com.apple.WebKit.WebContent: 113: Could not find specified service</code> in 29 sec after <strong>WKWebView</strong> content loaded, sometimes I even receive this error twice. Clearly, it is a configuration issue. I have checked cookies as proposed in <a href="https://stackoverflow.com/questions/40811887/could-not-signal-service-com-apple-webkit-webcontent">Could not signal service com.apple.WebKit.WebContent</a>, however it doesn't help</li>
  <li>Another question is whether there exist a list of all error codes that might pop up in <strong>WKWebView</strong></li>
  </ul>