设计时异常

FastGithub.UI/IssuesWebbrowser.xaml.cs

@@ -33,9 +33,15 @@ namespace FastGithub.UI
         }
 
         private void NavigateIssueHtml()
+        {
+            try
             {
                 var resource = Application.GetResourceStream(new Uri("Resource/issue.html", UriKind.Relative));
                 this.webBrowser.NavigateToStream(resource.Stream);
             }
+            catch (Exception)
+            {
+            }
+        }
     }
 }