From 9d119b627991f795704cbe41539cd0f980d5d72d Mon Sep 17 00:00:00 2001
From: slawkens <slawkens@gmail.com>
Date: Tue, 7 Nov 2023 22:15:23 +0100
Subject: [PATCH] This is more error tolerant

---
 common.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/common.php b/common.php
index 61cb32ca..8684cc4b 100644
--- a/common.php
+++ b/common.php
@@ -172,5 +172,5 @@ function isHttps(): bool
 	return
 		(!empty($_SERVER['HTTP_X_FORWARDED_PROTO']) && strtolower($_SERVER['HTTP_X_FORWARDED_PROTO']) === 'https')
 		|| (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off')
-		|| $_SERVER['SERVER_PORT'] == 443;
+		|| (isset($_SERVER['SERVER_PORT']) && (int) $_SERVER['SERVER_PORT'] === 443);
 }