How do I get cookies to to be sent with my requests to the backend in ember app

Is there a way in ember to send cookies with the requests to the backend?

For example: if my client url is protocol://example.com . The cookies that belong to the same domain will be in the request header when I navigate to protocol://example.com/profile. However, they do not persist in the subsequent request/s the profile route model method makes -> example to protocol://example-host/posts . How do I make those cookies persist?

/app/routes/profile.js

import Ember from "ember";
import AuthenticatedRouteMixin from "simple-auth/mixins/authenticated-route-mixin";

export default Ember.Route.extend({
  model: function () {
    return this.store.findAll("post");
  },
  setupController: function (controller, model) {
    // setup controller
  },

  renderTemplate: function () {
    this.render("header", {
      outlet: "header"
    });

    this.render("profile");
  }
});

/app/adapters/application

import Ember from "ember";
import DS from "ember-data";

export default DS.RESTAdapter.extend({
  host: http://example-host.com,
  corsWithCredentials: true,
  crossDomain: true,
  xhrFields: {withCredentials: true},
});