The server committed a protocol violation. Section=ResponseStatusLine in c#

Question

I have spent a whole day trying to resolve this. I have a custom webserver and requests to it from Chrome or POSTman ReST client work fine. As soon a s I use webclient or httpw

Answer 1

I had the same issue and I solved it using the following method. I created a custom web client that overrides the GetWebRequestMethod.

  class CustomWebClient : WebClient
{
    /// 

    /// Returns a  object for the specified resource.
    /// 
    /// A  that identifies the resource to request.
    /// 
    /// A new  object for the specified resource.
    /// 
    protected override WebRequest GetWebRequest(Uri address)
    {
        WebRequest request = base.GetWebRequest(address);
        if (request is HttpWebRequest)
        {
            (request as HttpWebRequest).KeepAlive = false;
        }
        return request;
    }
}

Then I made the request in the normal way like this

using (CustomWebClient client = new CustomWebClient())
        {
            client.Headers[HttpRequestHeader.Authorization] = "Basic " + base64String;
            responseData = client.DownloadData(baseUri);
        }