CURLAUTH_NTLM is required

In my case, the CURLRequest Class needs the curl option CRULAUTH_NTLM to access a Microsoft IIS web server. CI4 only allows CURLAUTH_DIGEST and CURLAUTH_BASIC.

It would be helpful if the setCURLOptions() function in the CodeIgniter4/system/HTTP/CURLRequest.php file could be supplemented as follows:

PHP Code:

            elseif (! empty($config['auth'][2]) && strtolower($config['auth'][2]) === 'ntlm')
            {
                $curl_options[CURLOPT_HTTPAUTH] = CURLAUTH_NTLM;
            } 


Many thanks!