Getting HTTP 431 - Request Header Fields Too Large. How to Fix This Error? or HTTP 431 Error: Why Are

Hey! HTTP 431 errors are a pain, but yeah, it’s usually cookies or auth tokens blowing up the header size.

One quick fix? Use Chrome DevTools (F12) -> Network tab -> check the "Headers" section of the failing request. You’ll see exactly which ones are huge.

Also, tools like Postman or Burp Suite can help inspect and trim headers. If you’re stuck, maybe try splitting auth tokens or switching to session storage instead of cookies.

Good luck!