The config.js file for the guest reader should have the following content:

// Use this file to configure the oxguard base url
// Only needed if you are not hosting the reader under default reader installation
// I.E. if the url to the reader is https://somedomain.com/appsuite/api/reader, then you don't need this file
//
// Set the return value of getRoot to the base url for oxguard (up to appsuite/api)
// 3
//function getRoot () {
// //var url = 'https://somedomain.com/appsuite/api/';
// //var url = 'http://localhost/appsuite/api/';
// return (url);
//}
//
//function getDefaultTemplateId () {
// var id = 2; // Set default ID here for fallback
// return (id);
//}