From c3af4cc1f69bcad1e105fb86ac113d80fc617623 Mon Sep 17 00:00:00 2001
From: sta <sta.blockhead@gmail.com>
Date: Mon, 25 May 2020 21:17:20 +0900
Subject: [PATCH] [Modify] Replace it

---
 websocket-sharp/Net/WebHeaderCollection.cs | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/websocket-sharp/Net/WebHeaderCollection.cs b/websocket-sharp/Net/WebHeaderCollection.cs
index 75d5fc7f..a1507f3e 100644
--- a/websocket-sharp/Net/WebHeaderCollection.cs
+++ b/websocket-sharp/Net/WebHeaderCollection.cs
@@ -1719,7 +1719,17 @@ namespace WebSocketSharp.Net
       var key = header.ToString ();
       var name = getHeaderName (key);
 
-      doWithCheckingState (setWithoutCheckingName, name, value, false, true);
+      value = checkValue (value);
+
+      checkRestricted (name, false);
+      checkAllowed (false);
+
+      base.Set (name, value);
+
+      if (_state != HttpHeaderType.Unspecified)
+        return;
+
+      _state = HttpHeaderType.Request;
     }
 
     /// <summary>