The JavaScript Debugger is sort of a re-launch of a ServiceNow feature that was removed in the Fuji release. Since then, the feature has undergone a major overhaul before being reintroduced, resulting in the functionality that we now have access to in Istanbul.
In this section, we're going to discuss an Istanbul-only feature: The ServiceNow JavaScript Debugger. This is a fantastically useful new feature in ServiceNow's Istanbul release and later, but is unavailable in any previous version.
The Debugger can be opened by clicking on the JavaScript Debugger button in the list of icons above any Script field, such as those above the Script field on a Business Rule.
Nearly everything relating to debugging happens within a specific session, and the JavaScript Debugger is no different. In order for the debugger to interact with a script's execution, it must be open in a browser...
