Why does the script throw an error when it does not work with a CDN?

Question

JavaScript

I use generator-webapp and include the gumshoe.js script. Throws errors:

Uncaught TypeError: Cannot read property 'window' of undefined

Uncaught ReferenceError: gumshoe is not defined
I placed the script tag in different places - both in the head, and at the beginning of the body and at the end. DOES NOT WORK.
When I connect the script via CDN, everything works.
When I just make static files, everything works.
I'm running through Gulp in generator-webapp - it doesn't work, bastard. What is it?))

Answer 1

Understood. In this scaffold, you need to use Bower for vendor scripts.

Answer 2

window is a browser object, if you do not launch it in a browser, then it is not there