From cb58a43ba0bbce6182d9a5259388c75763d63db7 Mon Sep 17 00:00:00 2001
From: Ivan Shynkarenka <chronoxor@gmail.com>
Date: Sat, 23 Dec 2023 12:57:17 +0400
Subject: [PATCH] Fix Bug: .NetFramework 4.8 ClientWebSocket Cann't Connect To
 .Net8 WsSession #278

---
 source/NetCoreServer/WebSocket.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/source/NetCoreServer/WebSocket.cs b/source/NetCoreServer/WebSocket.cs
index ff1f70f..ab375f0 100644
--- a/source/NetCoreServer/WebSocket.cs
+++ b/source/NetCoreServer/WebSocket.cs
@@ -162,7 +162,7 @@ public bool PerformServerUpgrade(HttpRequest request, HttpResponse response)
                     if ((string.Compare(value, "Upgrade", StringComparison.OrdinalIgnoreCase) != 0) && (string.Compare(value.RemoveWhiteSpace(), "keep-alive,Upgrade", StringComparison.OrdinalIgnoreCase) != 0))
                     {
                         error = true;
-                        response.MakeErrorResponse(400, "Invalid WebSocket handshaked request: 'Connection' header value must be 'Upgrade' or 'Upgrade, keep-alive'");
+                        response.MakeErrorResponse(400, "Invalid WebSocket handshaked request: 'Connection' header value must be 'Upgrade' or 'keep-alive, Upgrade'");
                         break;
                     }