The Bootstrap is a single line of code that is inserted in the head of the HTML file that corresponds to a webpage.
It is the only synchronous part of Ensighten’s solution and sets up the Bootstrap object, which is a container for methods. The Bootstrap object executes global, immediate rules, and then calls the server component that loads non-immediate rules.
To learn more see: Best Practices: Bootstrap.js
For advanced features see: Ensighten Bootstrapper Methods