title: What is the SignalR error function on client used for?
body: <pre><code>$.connection.hub.error(function (err) {
                  alert("Error signalR:" + JSON.stringify(err));
              });
  </code></pre>
  
  <p>What can I use this function for? It always displays this more often when running on mobile devices, and it never provides any information. So how do you use it? </p>
  
  <p>I never experiences SignalR breaking down because of this either, so should I just comment it out?</p>