@fransena That’s because there are some limitations while using Monaca Live Preview (the browser development interface) such as: Cordova Plugin APIs are not available. Ajax requests will fail because of Cross-origin restriction. However, it can be done if server-side scripts return “Access-Control-Allow-Origin” Header (i.e., Cross-Origin Ajax Request is permitted). Viewport appearance may differ from real devices. Monaca Backend API and Push Notifications can not be initialized.