How to make Creo view WebGL folder tree for pvz images?

Trying to make something with these example files like https://community.ptc.com/t5/Vuforia-Studio/How-to-extract-the-components-with-properties-from-a-pvz-file/td-p/589089 

My goal is to get folder structure showing for file that i am showing in my web page. like in attachment.

I have this Angular example, but don't want use Angular with this project. So just vanilla JS and HTML. Does anyone have solution for this? There are no working examples for this. Or any that i can find 😞