BUG : missing manager assignment

Author: tacaswell

lib/matplotlib/backends/web_backend/nbagg_mpl.js

@@ -149,10 +149,10 @@ mpl.figure.prototype._canvas_extra_style = function(el){
 
 }
 
-mpl.figure.prototype._key_event_extra = function(event, name) { 
+mpl.figure.prototype._key_event_extra = function(event, name) {
     var manager = IPython.notebook.keyboard_manager;
     if (!manager)
-        IPython.keyboard_manager;
+        manager = IPython.keyboard_manager;
 
     // Check for shift+enter
     if (event.shiftKey && event.which == 13) {