How to prevent “HTTP Error 431: Too many cookies” on wisc.edu sites

This document outlines how to resolve and prevent browser errors that you may encounter on a subdomain of wisc.edu related to third-party cookies. It also provides a summary of the cause of the issue and remediation efforts taken to date.

Additional Help

For assistance with clearing your cache and cookies, please Get Help from DoIT.

For other assistance, please contact your local IT: IT Help Desks at UW-Madison.

For more information about cookie tracking at UW-Madison, please visit the campus Cookies and Tracking webpage.



Keywords:
cookie, cache, browser, bad request, too many cookies, error 431, 403, web tracking tools, server limit, request header fields too large
Doc ID:
137109
Owned by:
Help Desk KB Team in DoIT Help Desk
Created:
2024-05-03
Updated:
2025-05-28
Sites:
DoIT Contract Partner Support Help Desk, DoIT Help Desk, WiscWeb