Uncaught (in promise) when calling multiple ajax within router model

I calling multiple API endpoint within ember router model I'm using ember-cli 3.11.0 When I refresh the page, it failed to load with "Uncaught (in promise)" which point specifically in $.ajax call

import $ from 'jquery';
import { hash } from 'rsvp';

export default Route.extend(AuthenticatedRouteMixin, {
  model: function (param) {
    return hash({
      category: $.ajax({
        url: 'http://localhost:8000/catalog/category/' + param.id,
        type: 'GET'
      }).then(function(res) {
        return res;
      }),
      categories: $.ajax({
        url: 'http://localhost:8000/catalog/category',
        type: 'GET'
      }).then(function(res) {
        return res;
      })
    })
  }
});

With those codes, I want to call inside setupController something like

setupController(ctrl, model) {
   console.log(model.category);
   console.log(model.categories);
}