How to edit my plugin virtual try

Hello goodday,

on my website people can virtually combine my products and download them last. this doesn’t work in my app. a javascript function needs to be created that calls a php file from my server and downloads the image in the app. does anyone know how to do this and what code to add where? Thanks

Kind regard vd Hee

you can see on my site : Maak jouw Moodboard – Look Quote

And on my app it dont opens the products…