From 6466002052bafa47f01d470a9a85201406aead1c Mon Sep 17 00:00:00 2001
From: rxu <rxu@mail.ru>
Date: Thu, 22 May 2014 01:27:23 +0800
Subject: [PATCH] [ticket/12572] Fix JS error when alert message title is
 undefined

JS console reports error in core.js:
TypeError: alert is undefined
alert.hide()
when res.MESSAGE_TITLE is undefined.

PHPBB3-12572
---
 phpBB/assets/javascript/core.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/phpBB/assets/javascript/core.js b/phpBB/assets/javascript/core.js
index cd633ed2ae..3cb41039cf 100644
--- a/phpBB/assets/javascript/core.js
+++ b/phpBB/assets/javascript/core.js
@@ -333,7 +333,9 @@ phpbb.ajaxify = function(options) {
 						// Hide the alert even if we refresh the page, in case the user
 						// presses the back button.
 						dark.fadeOut(phpbb.alertTime, function() {
-							alert.hide();
+							if (typeof alert !== 'undefined') {
+								alert.hide();
+							}
 						});
 					}, res.REFRESH_DATA.time * 1000); // Server specifies time in seconds
 				}