From bf9dca3f1727ca339fdbee7eda083beec628914a Mon Sep 17 00:00:00 2001
From: "Alexander M. Turek" <me@derrabus.de>
Date: Thu, 5 Aug 2021 01:33:30 +0200
Subject: [PATCH] Don't pass null to strpos()

Signed-off-by: Alexander M. Turek <me@derrabus.de>
---
 src/Symfony/Component/HttpFoundation/Request.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Symfony/Component/HttpFoundation/Request.php b/src/Symfony/Component/HttpFoundation/Request.php
index ab22200fc941..39f6cfee4e3b 100644
--- a/src/Symfony/Component/HttpFoundation/Request.php
+++ b/src/Symfony/Component/HttpFoundation/Request.php
@@ -1333,7 +1333,7 @@ public static function getMimeTypes(string $format)
     public function getFormat(?string $mimeType)
     {
         $canonicalMimeType = null;
-        if (false !== $pos = strpos($mimeType, ';')) {
+        if ($mimeType && false !== $pos = strpos($mimeType, ';')) {
             $canonicalMimeType = trim(substr($mimeType, 0, $pos));
         }