Add errback to JS init.

11 years ago · 01be52894d
parent 32fd103bad
commit 01be52894d
1 changed files with 3 additions and 1 deletions
--- a/notebook/static/notebook/js/main.js
+++ b/notebook/static/notebook/js/main.js
@ -53,7 +53,9 @@ require([
    // BEGIN HARDCODED WIDGETS HACK
    // Don't include in above require call, avoiding r.js
    // and crash on import failure.
-    require(['nbextensions/widgets/notebook/js/extension'], function(){});
+    require(['nbextensions/widgets/notebook/js/extension'], function(){}, function(err) {
+        console.error('ipywidgets package not installed.  Widgets are not available.');
+    });
    // END HARDCODED WIDGETS HACK

    // compat with old IPython, remove for IPython > 3.0