I have this repo which I tried to follow

• /

To setup the FastAPI backend and the NextJS frontend. I made it deployed to Vercel but encounter few issues

• In this internal domain /home, this will encounter something called re is not defined but the python api is able to return the result
• In the official domain /home, I'll encounter CORS issue

I have no idea how to fix these two, any help will be welcomed, thanks!