Javascript ile .Net core ile yazılan websocket'e headerla beraber mesaj göndermek.

[HttpGet("/ws")]
public async Task Get()
{
    try
    {
        if (HttpContext.WebSockets.IsWebSocketRequest)
        {
            if (HttpContext.Request.Headers.TryGetValue("Authorization", out var authHeaderValue))
            {
                Console.WriteLine("Authorization value :" + authHeaderValue);
            }

            using var webSocket = await HttpContext.WebSockets.AcceptWebSocketAsync();
            var buffer = new byte[1024 * 4];
            var result = await webSocket.ReceiveAsync(new ArraySegment<byte>(buffer), CancellationToken.None);

            while (!result.CloseStatus.HasValue)
            {
                var requestValue = $"{Encoding.UTF8.GetString(buffer, 0, result.Count)}";

                if (requestValue.Equals("Get-Print-Job"))
                {
                    var serverMessage = "Hi Client!";
                    var serverMsg = Encoding.UTF8.GetBytes($"{serverMessage}");

                    await webSocket.SendAsync(new ArraySegment<byte>(serverMsg, 0, serverMsg.Length), result.MessageType, result.EndOfMessage, CancellationToken.None);
                }

                else
                {
                    var errorMessge = "Error!";
                    var errorMessgeByte = Encoding.UTF8.GetBytes($"{errorMessge}");
                    await webSocket.SendAsync(new ArraySegment<byte>(errorMessgeByte, 0, errorMessgeByte.Length), result.MessageType, result.EndOfMessage, CancellationToken.None);
                }

                buffer = new byte[1024 * 4];
                result = await webSocket.ReceiveAsync(new ArraySegment<byte>(buffer), CancellationToken.None);
            }

            await webSocket.CloseAsync(result.CloseStatus.Value, result.CloseStatusDescription, CancellationToken.None);
        }
        else
        {
            HttpContext.Response.StatusCode = 400;
        }
    }
    catch (Exception ex)
    {
        HttpContext.Response.StatusCode = 500;
    }
}