1.3Browser environment

Widgets, scripts, and UDIXes have normal access to the browser's Javascript environment. For example, they can use setInterval() or setTimeout() to carry out delayed actions, and they can use XMLHttpRequest to collect external data (though see below).

Note: widgets are sandboxed, for security reasons, and cannot use localStorage, indexedDB, cookies, or browser modals.

You can use standard features of your browser to inspect and debug your code. For example, you can insert the debugger; keyword in your Javascript to pause your code in the browser's Developer Console.