Cors blocked fetch request ONLY when I boost my repl

Problem description: Turn on “Always on” or “Boost” will cause all fetch request to be blocked by cors. Turn off both will let fetch request go through again.

Expected behavior: Read above

Actual behavior: Read above

Steps to reproduce: Read above

Bug appears at this link: https://replit.com/@DucMinh27/Back-End#index.js

Browser/OS/Device: Chrome - Windows 10 - PC