Microsoft Edge - Bad Message 431
MS Edge is our preferred Chromium browser.
Over the last couple of weeks we have started to receive a Bad Message 431 error when we try to relog in to expired sessions.
Has anyone else experienced this change?
Has anyone identified a fix?
Answers
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Hi @TimWard70
Based on my experience with MS edge (not specific to Anaplan), The "Bad Message 431" error typically indicates that the request headers are too large for the server to process.
Typical resolutions include:
Clear Cookies and Cache: Start by clearing your browser's cookies and cache. This can often resolve issues related to large headers by removing old or unnecessary cookies.
Check Cookie Size: If you have control over the server or application, check the size of the cookies being set. You may need to reduce the size of the cookies or the number of cookies being used.
Server Configuration: If you have access to the server configuration, you might be able to increase the maximum header size. This is typically done in the server's configuration files (e.g., for Nginx or Apache).
Latest update: Make sure you have latest browser updates installed.
If you believe this is Anaplan specific, best possible way is to open a ticket with Anaplan tech support.1
