From 76a4b66417b77b9dd8edc7ecd408d1a9a5be4530 Mon Sep 17 00:00:00 2001
From: Martin Edenhofer <me@znuny.com>
Date: Fri, 15 Feb 2019 16:45:48 +0100
Subject: [PATCH] Fixes issue #2478 - Unable to update ticket with IE11.

---
 app/assets/javascripts/app/controllers/ticket_zoom.coffee | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/app/assets/javascripts/app/controllers/ticket_zoom.coffee b/app/assets/javascripts/app/controllers/ticket_zoom.coffee
index 73fc47fc1..6df84a8b0 100644
--- a/app/assets/javascripts/app/controllers/ticket_zoom.coffee
+++ b/app/assets/javascripts/app/controllers/ticket_zoom.coffee
@@ -808,7 +808,8 @@ class App.TicketZoom extends App.Controller
     @autosaveStop()
 
     # validate ticket form using HTML5 validity check
-    if !@$('.edit').parent().get(0).reportValidity()
+    element = @$('.edit').parent().get(0)
+    if element && element.reportValidity && !element.reportValidity()
       @submitEnable(e)
       @autosaveStart()
       return