Cordova error while executing Ajax call

I have a Cordova 7.0.1 application that makes a request to a method from an Asp.Net MVC Web API 4.6 site. When the call is made on the device, cordova run andoid , the method execution returns error.

IfyourunthebrowserdirectcallthroughanHTMLpageorruntheAppwithruncordovabrowser,itworks.

ThecontrollermethodCategoryApiController.csisthis:

publicclassCategoriaApiController:ApiController{privateDBContextdb=newDBContext();[HttpGet]publicstringListaCategorias(Categoriacategoria){varlistaCategorias=(dynamic)null;try{listaCategorias=db.Categoria.OrderBy(x=>x.Descricao).ToList();returnJsonConvert.SerializeObject(listaCategorias);//return"user-error";
        }
        catch (Exception ex)
        {
            return JsonConvert.SerializeObject(listaCategorias);
            //return "user-error";
        }
    }

}

The WebApiConfig.cs class:

   public static class WebApiConfig
    {
        public static void Register(HttpConfiguration config)
        {
            EnableCrossSiteRequests(config);

            config.Routes.MapHttpRoute(
                name: "AppLogin",
                routeTemplate: "api/login/{controller}/{action}/{id}"
            );

            config.Routes.MapHttpRoute(
                name: "DefaultApi",
                routeTemplate: "api/{controller}/{action}/{id}",
                defaults: new { id = RouteParameter.Optional }
                );

        }

        private static void EnableCrossSiteRequests(HttpConfiguration config)
        {
            var cors = new EnableCorsAttribute(
                origins: "*",
                headers: "*",
                methods: "*");
            config.EnableCors(cors);
        }
    }

And called ajax:

    function chamaListaCategorias(){
    // var categoria = new CategoriaController();
    // categoria.ListaCategorias();

  var url = BASE_URL + "api/CategoriaApi/ListaCategorias";

        $.ajax({
          type: "GET",
          dataType: "json",
          success: function (data, status, jqXHR) {
            $("#res").html("Local success callback.<br>") ;
            $("#res").html(data);

          },
          error: function (jqXHR, status, err) {
            $("#res").html("Local error callback." + err + ' --- ' + status  + ' ---' + jqXHR);
            console.log(err);
          }


}

I installed the whitelist plugin that in my understanding was to configure this type of access.

Are there any settings in the App or Site to allow this request to work?