Offline Post VBCS with Business Object

Content

Hi i need to do a Get and Post with offline service, i follow some steps for this post here, https://blogs.oracle.com/shay/adding-offline-capabilities-to-an-oracle-visual-builder-app. But my Post doesn't work, and i'm try to do this for Mobile VBCS. This my code: 

define([
    'vbsw/helpers/serviceWorkerHelpers',
    'persist/persistenceManager',
    'persist/defaultResponseProxy',
    'persist/persistenceUtils',
    'persist/fetchStrategies',
    'persist/impl/logger'
  ],
  function(ServiceWorkerHelpers, PersistenceManager, DefaultResponseProxy,
    PersistenceUtils, FetchStrategies, Logger) {
    'use strict';

    function AppModule() {}

    function OfflineHandler() {

      Logger.option('level', Logger.LEVEL_LOG);
      Logger.option('writer', console);

      var options = {

        requestHandlerOverride: {
          handlePost: handlePost
        },
        fetchStrategy: FetchStrategies.getCacheIfOfflineStrategy({
          backgroundFetch: 'disabled'
        })
      };
      this._responseProxy = DefaultResponseProxy.getResponseProxy(options);
    }

    OfflineHandler.prototype.handleRequest = function(request, scope) {