ignoring error

DnsServerCore/DnsWebService.cs

@@ -522,9 +522,16 @@ namespace DnsServerCore
                 response.AddHeader("Cache-Control", "private, max-age=300");
 
                 using (Stream stream = response.OutputStream)
+                {
+                    try
                     {
                         fS.CopyTo(stream);
                     }
+                    catch (HttpListenerException)
+                    {
+                        //ignore this error
+                    }
+                }
             }
         }