diff --git a/IPython/html/static/notebook/js/widgetmanager.js b/IPython/html/static/notebook/js/widgetmanager.js
index 80c4d11..c8a5fb5 100644
--- a/IPython/html/static/notebook/js/widgetmanager.js
+++ b/IPython/html/static/notebook/js/widgetmanager.js
@@ -37,8 +37,9 @@
             this._models = {}; /* Dictionary of model ids and model instances */
 
             // Register already-registered widget model types with the comm manager.
+            var that = this;
             _.each(WidgetManager._model_types, function(value, key) {
-                this.comm_manager.register_target(value, $.proxy(this._handle_comm_open, this));
+                that.comm_manager.register_target(value, $.proxy(that._handle_comm_open, that));
             });
         };
 
diff --git a/IPython/html/static/notebook/js/widgets/widget_selection.js b/IPython/html/static/notebook/js/widgets/widget_selection.js
index c95e34b..fab10c0 100644
--- a/IPython/html/static/notebook/js/widgets/widget_selection.js
+++ b/IPython/html/static/notebook/js/widgets/widget_selection.js
@@ -172,7 +172,7 @@ define(["notebook/js/widgets/widget"], function(WidgetManager){
                     _.each(items, function(item, index) {
                         if (item == value) {
                             found = true;
-                            break;
+                            return false;
                         }
                     });
                     
@@ -257,7 +257,7 @@ define(["notebook/js/widgets/widget"], function(WidgetManager){
                     _.each(items, function(item, index) {
                         if (item == value) {
                             found = true;
-                            break;
+                            return false;
                         }
                     });
 
@@ -339,7 +339,7 @@ define(["notebook/js/widgets/widget"], function(WidgetManager){
                     _.each(items, function(item, index) {
                         if (item == value) {
                             found = true;
-                            break;
+                            return false;
                         }
                     });