HTTPListener c# Web service issue when preform refresh

Question

i want make web service by using HTTPlistener and all is works as expected but the issue is when i do refresh or get out from website and back it not displays for me the web.

      int i = 0, k = 1;

    HttpListener server = new HttpListener(); 
    server.Prefixes.Add("http://10.0.0.7/");
    server.Start();
    Console.WriteLine("Server Running..");
    try
    {
        string path = "C:/Users/James/Documents/EndProject/webproj/";
        string[] files = Directory.GetFiles(path, "*.*", SearchOption.AllDirectories);
        k = files.Length;
        while (true)
            {
            for (i=0; i < k; i++)
                {
                    HttpListenerContext context = server.GetContext();
                    HttpListenerResponse response = context.Response;
                    Console.WriteLine("Web URL: {0}", context.Request.Url.OriginalString);
                    byte[] buffer = File.ReadAllBytes(files[i]);
                    response.ContentLength64 = buffer.Length;
                    Stream st = response.OutputStream;
                    st.Write(buffer, 0, buffer.Length);
                    context.Response.Close();
                }
            }
        } 

The issue is enter image description here

it happens just if i trying approach again (F5,Refrash, or getting out and back again) how can i resolve it? Thanks