text: export function initialize(appInstance) {
    let previous = {
      path: null,
      url: null,
      route: null
    };
    appInstance.register('previous:main', previous, {instantiate: false})
    appInstance.inject('route', 'previous', 'previous:main');
  }
  
  export default {
    name: 'previous',
    initialize
  };
  