Action handler for a "bad" open modal

application.js

...
  openModal(modal, options) {
    var controllerName = options && options.controller || 'modal';
    var controller = this.controllerFor(controllerName);
  
    controller.set('content', options && options.data || {});
  
    Ember.run.scheduleOnce('afterRender', this, function() {
        this.render(modal, {
            into: 'application',
            outlet: 'modal',
            controller: controllerName
        });
    });
  },
...