diff --git a/websocket-sharp/Net/HttpListenerResponse.cs b/websocket-sharp/Net/HttpListenerResponse.cs
index 326aea40..543f6875 100644
--- a/websocket-sharp/Net/HttpListenerResponse.cs
+++ b/websocket-sharp/Net/HttpListenerResponse.cs
@@ -756,107 +756,6 @@ namespace WebSocketSharp.Net
 
     #endregion
 
-    #region Internal Methods
-
-    internal WebHeaderCollection WriteHeadersTo (MemoryStream destination)
-    {
-      var headers = new WebHeaderCollection (HttpHeaderType.Response, true);
-
-      if (_headers != null)
-        headers.Add (_headers);
-
-      if (_contentType != null) {
-        headers.InternalSet (
-          "Content-Type",
-          createContentTypeHeaderText (_contentType, _contentEncoding),
-          true
-        );
-      }
-
-      if (headers["Server"] == null)
-        headers.InternalSet ("Server", "websocket-sharp/1.0", true);
-
-      if (headers["Date"] == null) {
-        headers.InternalSet (
-          "Date",
-          DateTime.UtcNow.ToString ("r", CultureInfo.InvariantCulture),
-          true
-        );
-      }
-
-      if (_sendChunked) {
-        headers.InternalSet ("Transfer-Encoding", "chunked", true);
-      }
-      else {
-        headers.InternalSet (
-          "Content-Length",
-          _contentLength.ToString (CultureInfo.InvariantCulture),
-          true
-        );
-      }
-
-      /*
-       * Apache forces closing the connection for these status codes:
-       * - 400 Bad Request
-       * - 408 Request Timeout
-       * - 411 Length Required
-       * - 413 Request Entity Too Large
-       * - 414 Request-Uri Too Long
-       * - 500 Internal Server Error
-       * - 503 Service Unavailable
-       */
-      var closeConn = !_context.Request.KeepAlive
-                      || !_keepAlive
-                      || _statusCode == 400
-                      || _statusCode == 408
-                      || _statusCode == 411
-                      || _statusCode == 413
-                      || _statusCode == 414
-                      || _statusCode == 500
-                      || _statusCode == 503;
-
-      var reuses = _context.Connection.Reuses;
-
-      if (closeConn || reuses >= 100) {
-        headers.InternalSet ("Connection", "close", true);
-      }
-      else {
-        headers.InternalSet (
-          "Keep-Alive",
-          String.Format ("timeout=15,max={0}", 100 - reuses),
-          true
-        );
-
-        if (_context.Request.ProtocolVersion < HttpVersion.Version11)
-          headers.InternalSet ("Connection", "keep-alive", true);
-      }
-
-      if (_location != null)
-        headers.InternalSet ("Location", _location, true);
-
-      if (_cookies != null) {
-        foreach (var cookie in _cookies)
-          headers.InternalSet ("Set-Cookie", cookie.ToResponseString (), true);
-      }
-
-      var enc = Encoding.UTF8;
-      var writer = new StreamWriter (destination, enc, 256);
-
-      writer.Write (
-        "HTTP/{0} {1} {2}\r\n", _version, _statusCode, _statusDescription
-      );
-
-      writer.Write (headers.ToStringMultiValue (true));
-      writer.Flush ();
-
-      // Assumes that the destination was at position 0.
-      destination.Position = enc.GetPreamble ().Length;
-
-      return headers;
-    }
-
-    #endregion
-
     #region Public Methods
 
     /// <summary>