Authentication error

[enzovaldes]

Hi,

Routes of my program calls the auth.isAuthenticated () function , this route is the type get:
This route shows me cars
router.get ( '/', auth.isAuthenticated () , controller.index ) ;

For some reason when I try to enter the path to the backend , ie api / car tells me :

GET / api / cars
404 9ms
UnauthorizedError : No Authorization header was found.

Please help .