From f1c839042c697d0e4d4ae226bdc8b2684d45c9bb Mon Sep 17 00:00:00 2001
From: Kijin Sung <kijin@kijinsung.com>
Date: Thu, 1 Jul 2021 14:39:47 +0900
Subject: [PATCH] Fix warning in PHP 8.0

---
 classes/frontendfile/FrontEndFileHandler.class.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/classes/frontendfile/FrontEndFileHandler.class.php b/classes/frontendfile/FrontEndFileHandler.class.php
index a0446b704..1fb1fed45 100644
--- a/classes/frontendfile/FrontEndFileHandler.class.php
+++ b/classes/frontendfile/FrontEndFileHandler.class.php
@@ -114,11 +114,11 @@ class FrontEndFileHandler extends Handler
 			}
 		}
 		
-		if (preg_match('/IE/i', $args[2]))
+		if (isset($args[2]) && preg_match('/IE/i', $args[2]))
 		{
 			$source_hint = '';
 		}
-		else
+		elseif (isset($args[2]) && $args[2] !== '')
 		{
 			$source_hint = $args[2];
 			$args[2] = '';