From e64c30e5691e43f79de431c71d6bd0cdf37e4010 Mon Sep 17 00:00:00 2001
From: Markus Birth <markus@birth-online.de>
Date: Sun, 15 Jun 2025 01:36:12 +0100
Subject: [PATCH] Turn returned HTTP headers lowercase before parsing

NGINX for some reason returns "content-length" instead of
"Content-Length".
---
 src/Mp3FileRemote.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/Mp3FileRemote.php b/src/Mp3FileRemote.php
index c6b18b3..9bfb5ac 100644
--- a/src/Mp3FileRemote.php
+++ b/src/Mp3FileRemote.php
@@ -52,7 +52,8 @@ class Mp3FileRemote
             ],
         ]);
         $result = get_headers($this->fileName, true, $context);
-        return $result['Content-Length'];
+        $result = array_change_key_case($result, CASE_LOWER);
+        return $result['content-length'];
     }
 
     /**