Don't prevent FTPS:// through a http proxy, as we cannot know if it works or

       !data->set.tunnel_thru_httpproxy) {

      /* Unless we have asked to tunnel ftp operations through the proxy, we

         switch and use HTTP operations only */

      if(conn->protocol & PROT_FTPS) {

        /* FTPS is a hacked protocol and does not work through your

           ordinary http proxy! */

        failf(data, "ftps does not work through http proxy!");

        return CURLE_UNSUPPORTED_PROTOCOL;

      }

#ifndef CURL_DISABLE_HTTP

      conn->curl_do = Curl_http;

      conn->curl_done = Curl_http_done;