From 96a87eb66a18ea8cb86ab8c2ac623457954d7b66 Mon Sep 17 00:00:00 2001
From: kerorero <kerorero13@gmail.com>
Date: Mon, 20 Apr 2020 22:08:16 +0200
Subject: [PATCH] close #16049, checking if select input exists before
 retrieving the value, but not checking hostname select input value

Signed-off-by: Kamil Bacia <kbacia7@gmail.com>
---
 js/server/privileges.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/js/server/privileges.js b/js/server/privileges.js
index f3888b5a80..1cd509c2bd 100644
--- a/js/server/privileges.js
+++ b/js/server/privileges.js
@@ -14,13 +14,13 @@
  * @return boolean  whether the form is validated or not
  */
 function checkAddUser (theForm) {
-    if (theForm.elements.pred_hostname.value === 'userdefined' && theForm.elements.hostname.value === '') {
+    if (theForm.elements.hostname.value === '') {
         alert(Messages.strHostEmpty);
         theForm.elements.hostname.focus();
         return false;
     }
 
-    if (theForm.elements.pred_username.value === 'userdefined' && theForm.elements.username.value === '') {
+    if ((theForm.elements.pred_username && theForm.elements.pred_username.value === 'userdefined') && theForm.elements.username.value === '') {
         alert(Messages.strUserEmpty);
         theForm.elements.username.focus();
         return false;