From 21b66783d798e3bc893f670af0d49c9d84e6c22f Mon Sep 17 00:00:00 2001
From: timm2k <timm2k@gmx.de>
Date: Fri, 3 Jul 2020 08:15:40 +0200
Subject: [PATCH] Manual backport of "Check if debugMode is defined before
 using it" #21657

---
 core/templates/exception.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/templates/exception.php b/core/templates/exception.php
index fcfa8687710..76266b03868 100644
--- a/core/templates/exception.php
+++ b/core/templates/exception.php
@@ -14,7 +14,7 @@ style('core', ['styles', 'header']);
 	<ul>
 		<li><?php p($l->t('Remote Address: %s', [$_['remoteAddr']])) ?></li>
 		<li><?php p($l->t('Request ID: %s', [$_['requestID']])) ?></li>
-		<?php if($_['debugMode']): ?>
+		<?php if (isset($_['debugMode']) && $_['debugMode'] === true): ?>
 			<li><?php p($l->t('Type: %s', [$_['errorClass']])) ?></li>
 			<li><?php p($l->t('Code: %s', [$_['errorCode']])) ?></li>
 			<li><?php p($l->t('Message: %s', [$_['errorMsg']])) ?></li>
-- 
2.39.5