From 1cbf1aec92cdc202e4cd83f8e4adedc448afdbab Mon Sep 17 00:00:00 2001
From: ansuz <ansuz@transitiontech.ca>
Date: Fri, 27 Oct 2017 14:14:19 +0200
Subject: [PATCH] prevent undefined access in non-sframe apps

---
 www/common/common-interface.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/www/common/common-interface.js b/www/common/common-interface.js
index 644efded2..f03b4b481 100644
--- a/www/common/common-interface.js
+++ b/www/common/common-interface.js
@@ -526,7 +526,8 @@ define([
         // them.
         var win;
         $('.tippy-popper').each(function (i, el) {
-            win = win || $('#pad-iframe')[0].contentWindow;
+            win = win || $('#pad-iframe').length? $('#pad-iframe')[0].contentWindow: undefined;
+            if (!win) { return; }
             if (win.$('[aria-describedby=' + el.getAttribute('id') + ']').length === 0) {
                 el.remove();
             }