Cors origin with make Post Request

Greetins from Venezuela…

Im try connect mi ionic 3 app to my api rest Laravel, but whe a make a post request to de rout post of laravel show this -> Solicitud desde otro origen bloqueada: la política de mismo origen impide leer el recurso remoto en (urlapirest) (razón: el canal prevuelo CORS no funcionó correctamente

I solved this some proble with de resources routes adding a middleware Cors, but with post routes from de form ionic i have an error.

What can I do ??