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

Ugh, http 431 is the worst. Had this issue last month—turned out our JWT tokens were massive because of too many claims.

Try this:
- Use a tool like jwt.io to decode your token and see if it’s bloated.
- If you’re using cookies, check if multiple are being sent (like analytics or tracking stuff).

Sometimes servers have stupid low limits, so yeah, might need to bug the admin.