CGI dump: $VAR1 = bless( {
                 '.parameters' => [],
                 'use_tempfile' => 1,
                 '.charset' => 'ISO-8859-1',
                 '.fieldnames' => {},
                 'param' => {},
                 '.cgi_error' => '400 Bad request (malformed multipart POST)',
                 'escape' => 1
               }, 'CGI' );