From 982d4cbb3eb9f10706399aae196e3213a03930ef Mon Sep 17 00:00:00 2001
From: Luke Pulverenti <luke.pulverenti@gmail.com>
Date: Thu, 22 Dec 2016 11:48:24 -0500
Subject: [PATCH] update comparisons

---
 SocketHttpListener.Portable/Net/HttpListenerResponse.cs | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/SocketHttpListener.Portable/Net/HttpListenerResponse.cs b/SocketHttpListener.Portable/Net/HttpListenerResponse.cs
index c1182de343..9a5862cb94 100644
--- a/SocketHttpListener.Portable/Net/HttpListenerResponse.cs
+++ b/SocketHttpListener.Portable/Net/HttpListenerResponse.cs
@@ -386,7 +386,7 @@ namespace SocketHttpListener.Net
 
             if (content_type != null)
             {
-                if (content_encoding != null && content_type.IndexOf("charset=", StringComparison.Ordinal) == -1)
+                if (content_encoding != null && content_type.IndexOf("charset=", StringComparison.OrdinalIgnoreCase) == -1)
                 {
                     string enc_name = content_encoding.WebName;
                     headers.SetInternal("Content-Type", content_type + "; charset=" + enc_name);
@@ -429,9 +429,10 @@ namespace SocketHttpListener.Net
              *	HttpStatusCode.InternalServerError 	500
              *	HttpStatusCode.ServiceUnavailable 	503
              */
-            bool conn_close = (status_code == 408 || status_code == 411 ||
+            bool conn_close = status_code == 400 || status_code == 408 || status_code == 411 ||
                     status_code == 413 || status_code == 414 ||
-                    status_code == 503);
+                    status_code == 500 ||
+                    status_code == 503;
 
             if (conn_close == false)
                 conn_close = !context.Request.KeepAlive;