How to transfer an image over http

Question

I am trying to create a proxy, text based requests get processed(js, css, html) properly. But when i try to load in an image i get the message that the image contains errors.

I have tried multiple ways to send this over http but none of them have worked yet. Here is the relevant code

 try
        {
            StringBuilder responseString = new StringBuilder();
            HttpWebRequest clientRequest = (HttpWebRequest)WebRequest.Create(url);
            HttpWebResponse response = (HttpWebResponse)clientRequest.GetResponse();
            string headers = response.Headers.ToString();
            string contentType = response.Headers.Get("content-type");
            var encoding = ASCIIEncoding.ASCII;
            if (contentType.IndexOf("image") > -1)
            {
                using (BinaryReader stream = new BinaryReader(response.GetResponseStream()))
                {
                    var bytes = new byte[1024];
                    while (true)
                    {
                        var n = stream.Read(bytes, 0, bytes.Length);
                        if (n == 0)
                        {
                            break;
                        }
                        responseString.Append(bytes);
                    }
                    return "HTTP/1.1 200 \n" + headers + responseString.ToString();
                }
            }
            else
            {
                using (var reader = new System.IO.StreamReader(response.GetResponseStream(), encoding))
                {

                    return "HTTP/1.1 200 \n" + headers + reader.ReadToEnd();
                } 
            }
        catch
        {
            addToList("Request failed");
            return "Request failed";
        }
    }

If possible i would prefer to keep the http response string so that I send it over the already existing NetworkStream.

Answer 1

The solution was to stream the response directly to the client and not convert it to a string first. The headers are sent in a string before.