Help with p5.js

[final palm]

Watching and following his Word definition extension video : https://www.youtube.com/watch?v=GWDx1GnxhOw
Can anyone help me understand why I'm getting the following errors? I'm following him step by step but I'm not sure why window is not defined. Is it a p5.js method? I attached my index.html as well. Much thanks

[dark geode]

I'm not that good at React and NPM, but i guess that u haven´t installed the library for "window", when u have installed the "window" library maybe it's in the wrong folder.

[final palm]

I have not, i just assumed it was just a dom manipulation method, is the windows library associated with the p5 js?

[dark geode]

i don´t know, i searched it on the internet, and i guess the window library is not in P5 js

[final palm]

Thanks

[formal pike]

possibly the window var is not available in a background script

not sure thogh