How is my App working when it shouldn't?

[Erickthamara]

Summary

I have deployed a REACT app which has a flask backend.The architecture looks like this. (REACT<--->FLASK<--->SUPABASE(Postgres).Both projects are in one directory but with different folders.I only deployed the frontend one with Vercel.But for some reason my entire app is working without having deployed my Flask backend.Can someone explain kindly.Also,have not entered my database and url-keys anywhere.

Example

No response

Steps to Reproduce

This is my Folder structure. When i uploaded to Vercel,I only selected the frontend
-->Frontend
-->Public
-->src
-->Components
-->Pages
-->App.jsx
-->Main.jsx
-->App.css
-->Package.json
-->index.html
-->.gitignore
-->Backend
-->.gitignore
-->app.py
-->requirements.txt
-->vercel.json
-->.gitignore
-->Readme.md