From a7ff08458dd96a14a1ca1f38713dc67ee496af95 Mon Sep 17 00:00:00 2001
From: Joseph Schorr <josephschorr@users.noreply.github.com>
Date: Thu, 8 Sep 2016 14:32:49 -0400
Subject: [PATCH] Fix small NPE

Fixes #1811
---
 static/js/core-ui.js | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/static/js/core-ui.js b/static/js/core-ui.js
index f7457ce0a..a1395bf1f 100644
--- a/static/js/core-ui.js
+++ b/static/js/core-ui.js
@@ -676,13 +676,17 @@ angular.module("core-ui", [])
 
         $scope.toggleItems = function($event) {
           $event.stopPropagation();
-          $scope.controller.toggleItems();
+          if ($scope.controller) {
+            $scope.controller.toggleItems();
+          }
         };
 
         this.checkByFilter = function(filter) {
-          $scope.controller.checkByFilter(function(item) {
-            return filter({'item': item});
-          });
+          if ($scope.controller) {
+            $scope.controller.checkByFilter(function(item) {
+              return filter({'item': item});
+            });
+          }
         };
       }
     };