From 12ee1bf72bd9e5c273ef4cdfa510f4e04b14db8e Mon Sep 17 00:00:00 2001
From: Kenneth Skovhede <kenneth@duplicati.com>
Date: Mon, 27 Oct 2025 12:31:07 +0100
Subject: [PATCH] Merge pull request #6560 from
 duplicati/feature/more-robust-request-forward

Guard against sending extra header.
---
 Duplicati/Library/RemoteControl/KeepRemoteConnection.cs | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/Duplicati/Library/RemoteControl/KeepRemoteConnection.cs b/Duplicati/Library/RemoteControl/KeepRemoteConnection.cs
index 725f7b67a..2d185acb0 100644
--- a/Duplicati/Library/RemoteControl/KeepRemoteConnection.cs
+++ b/Duplicati/Library/RemoteControl/KeepRemoteConnection.cs
@@ -645,8 +645,11 @@ public class KeepRemoteConnection : IDisposable
                 {
                     foreach (var header in CommandRequestMessage.Headers)
                     {
-                        if (header.Key == "Content-Type" && request.Content != null)
-                            request.Content.Headers.ContentType = new MediaTypeHeaderValue(header.Value);
+                        if (header.Key == "Content-Type")
+                        {
+                            if (request.Content != null)
+                                request.Content.Headers.ContentType = new MediaTypeHeaderValue(header.Value);
+                        }
                         else
                             request.Headers.Add(header.Key, header.Value);
                     }