You must enable programmatic filter key determination before you can use it. To do so, create an application-level JavaScript module that lists the CCStoreConfiguration library as a dependency and includes the following code:

define(

  //-------------------------------------------------------------------
  // DEPENDENCIES
  //-------------------------------------------------------------------
  ['ccStoreConfiguration'],

  //-------------------------------------------------------------------
  // Module definition
  //-------------------------------------------------------------------
  function(CCStoreConfiguration) {

    'use strict';

    return {
      onLoad : function() {
         CCStoreConfiguration.getInstance().enableFilter();
      },
    }
  }
);

See Include Application-level JavaScript Modules for details on creating and uploading an application-level JavaScript module.