From ad3c58f2d875a0ac7a8a17372c7eca84abd1a2b3 Mon Sep 17 00:00:00 2001
From: Damian Mooyman <damian.mooyman@littlegiant.co.nz>
Date: Mon, 15 Apr 2019 14:01:34 +1200
Subject: [PATCH] BUG Back-port
 https://github.com/silverstripe/silverstripe-admin/pull/769 to 3.7, fix
 parsererror issue

---
 javascript/jquery-ondemand/jquery.ondemand.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/javascript/jquery-ondemand/jquery.ondemand.js b/javascript/jquery-ondemand/jquery.ondemand.js
index 0437c953e..62fd837ad 100644
--- a/javascript/jquery-ondemand/jquery.ondemand.js
+++ b/javascript/jquery-ondemand/jquery.ondemand.js
@@ -109,10 +109,13 @@
 					$.ajax({
 						dataType: 'script',
 						url: newJsInclude,
-						success: function() {
+						complete: function() {
 							self._ondemand_loaded_list[newJsInclude] = 1;
 							getScriptQueue();
 						},
+						error: function(xhr, status, error) {
+							console.error(error);
+						},
 						cache: false,
 						// jQuery seems to override the XHR objects if used in async mode
 						async: false