Embedded Graph with Functions Loaded

[Frost Hawk]

Hello! I've used Desmos' api to load in a graphing calculator for one of my projects, however it always loads blank. I would like to have some functions already existing in the calculator window loaded when possible. I saw some old posts and videos about fetching some JSON object from the saved graph url that I want, however when I try to fetch something from that URL, I'm getting an HTML file in return, not the JSON object that I am hoping for. It would seem like the api was changed since those vides.

Is there a way to do this now, and would it work with fragile functions?

Here's the link to the calculator I hope to embed: https://www.desmos.com/calculator/vg5ywawqa0. I can't just embed an image unfortunately.