There have been reports about an error message when logging into various University web resources that are behind authentication, like Jadu forms or our Drupal websites. The error message states: “Bad Message 431 reason: Request Header Fields Too Large”.
This issue appears to be isolated to Google Chrome, and is a caching and cookie bug that is inconsistently affecting a small number of users. Some folks may never get this message, but others may repeatedly see it. You can get rid of the message by clearing your browser cache and cookies. It is recommended to clear browsing data for “all time”, as the other timing options do not always work to prevent this error. Once you clear your browser cache and cookies, this should resolve the issue. But if it returns after a few days, clear the cache and cookies again.
This issue has been escalated to various teams in OIT who are investigating. If this issue is reported to you, please instruct the person to clear their browser cache and cookies (provide the linked instructions if needed) and to try accessing the resource again. They can also try accessing the resource from a different browser. If you have repeated issues, please contact help@umn.edu.
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