HttpWebRequest & Native GZip Compression

Question

When requesting a page with Gzip compression I am getting a lot of the following errors:

System.IO.InvalidDataException: The CRC in GZip footer does

Answer 1

For .NET Core things are a little more involved. A GZipStream is needed as there isn't a property (as of writing) for AutomaticCompression. See my answer here: https://stackoverflow.com/a/44508724/2421277

Code from answer:

var req = WebRequest.CreateHttp(uri);

/*
 * Headers
 */
req.Headers[HttpRequestHeader.AcceptEncoding] = "gzip, deflate";

/*
 * Execute
 */
try
{
    using (var resp = await req.GetResponseAsync())
    {
        using (var str = resp.GetResponseStream())
        using (var gsr = new GZipStream(str, CompressionMode.Decompress))
        using (var sr = new StreamReader(gsr))

        {
            string s = await sr.ReadToEndAsync();  
        }
    }
}
catch (WebException ex)
{
    using (HttpWebResponse response = (HttpWebResponse)ex.Response)
    {
        using (StreamReader sr = new StreamReader(response.GetResponseStream()))
        {
            string respStr = sr.ReadToEnd();
            int statusCode = (int)response.StatusCode;

            string errorMsh = $"Request ({url}) failed ({statusCode}) on, with error: {respStr}";
        }
    }
}