Using codeIgniter 3.1.7 + codeigniter-restserver-master using the PUT and DELETE verbs returns 401 Unauthorized

Using the codeIgniter 3.1.7 + codeigniter-restserver-master using the PUT and DELETE statements returns 401 Unauthorized

config / routs.php file     

defined('BASEPATH') OR exit('No direct script access allowed');
$route['default_controller'] = 'home_c';
$route['404_override'] = '';
$route['translate_uri_dashes'] = TRUE;

$route["api/usuario/"]["get"] = "api/usuario";
$route["api/usuario/(:num)"]["get"] = "api/usuario/id/$1";
$route["api/usuario"]["post"] = "api/usuario";
$route["api/usuario/(:num)"]["put"] = "api/usuario/id/$1";
$route["api/usuario/(:num)"]["delete"] = "api/usuario/id/$1";

file controllers / User.php

 <?php

defined('BASEPATH') OR exit('No direct script access allowed');
require APPPATH . '/libraries/REST_Controller.php';

class Usuario extends REST_Controller { 
function index_put($id) {
        $this->response(array("ok" => $this->post), REST_Controller::HTTP_OK);
}
}

When I use postman with the verb PUT Using: headers

key= Content-Type 
value=application/javascript 
ou 
key= Content-Type 
value=application/x-www-form-urlencoded
com a URL 

  

link    or like this    link

     

returns - > 401 Unauthorized