From ee5a0052a1b1ae1842ce968818f6fae2b2bd1150 Mon Sep 17 00:00:00 2001
From: Sarah Vaupel <>
Date: Wed, 12 Aug 2020 17:21:13 +0200
Subject: [PATCH] fix(hide-columns): account for undefined element in
 isTableHider

---
 frontend/src/utils/hide-columns/hide-columns.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/frontend/src/utils/hide-columns/hide-columns.js b/frontend/src/utils/hide-columns/hide-columns.js
index 0c214ee38..7661ac92b 100644
--- a/frontend/src/utils/hide-columns/hide-columns.js
+++ b/frontend/src/utils/hide-columns/hide-columns.js
@@ -376,7 +376,9 @@ function isEmptyElement(element) {
 }
 
 function isTableHider(element) {
-  return element.classList.contains(TABLE_HIDER_CLASS)
+  return element && element.classList && (
+       element.classList.contains(TABLE_HIDER_CLASS)
     || element.classList.contains(TABLE_HIDER_VISIBLE_CLASS)
-    || element.classList.contains(TABLE_PILL_CLASS);
+    || element.classList.contains(TABLE_PILL_CLASS)
+  );
 }