From 362caf74aeed6d92e68cfa444e5f29ef0d2460fa Mon Sep 17 00:00:00 2001
From: Robert Zondervan <robert@conduction.nl>
Date: Tue, 9 Dec 2025 15:15:05 +0100
Subject: [PATCH] Check if header exists before forcing it

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

diff --git a/src/Service/RequestService.php b/src/Service/RequestService.php
index 9a430392..8f44db7b 100644
--- a/src/Service/RequestService.php
+++ b/src/Service/RequestService.php
@@ -817,7 +817,7 @@ public function proxyHandler(array $data, array $configuration, ?Source $proxy =
                 unset($headers['Content-Length']);
             }
 
-            if ($data['accept'] !== $headers['content-type'][0]) {
+            if (isset($headers['content-type']) === false || $data['accept'] !== $headers['content-type'][0]) {
                 $headers['content-type'] = $data['accept'];
             }