From a53f4cc9ddd1c7a3e53e3467a6679d5ebf12e4e2 Mon Sep 17 00:00:00 2001
From: Jonathan Frederic <jdfreder@calpoly.edu>
Date: Tue, 25 Nov 2014 11:57:12 -0800
Subject: [PATCH] Log save state callback failures

---
 IPython/html/static/widgets/js/manager.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/IPython/html/static/widgets/js/manager.js b/IPython/html/static/widgets/js/manager.js
index 20d136598..22b4bae71 100644
--- a/IPython/html/static/widgets/js/manager.js
+++ b/IPython/html/static/widgets/js/manager.js
@@ -43,7 +43,7 @@ define([
             if (save_callback) {
                 that.get_state(options).then(function(state) {
                     save_callback.call(that, state);
-                });
+                }).catch(utils.reject('Could not call widget save state callback.', true));
             }
         });
     };