From 3bb7815ba216cb355c2a5a1d05999b0a89bc3393 Mon Sep 17 00:00:00 2001
From: loks0n <22452787+loks0n@users.noreply.github.com>
Date: Fri, 25 Apr 2025 14:41:46 +0100
Subject: [PATCH] fix: lowercase headers

---
 src/Client.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Client.php b/src/Client.php
index dbd4840..4714ce0 100644
--- a/src/Client.php
+++ b/src/Client.php
@@ -44,7 +44,7 @@ class Client
      */
     public function addHeader(string $key, string $value): self
     {
-        $this->headers[$key] = $value;
+        $this->headers[strtolower($key)] = $value;
         return $this;
     }