401 error accessing .well-known/jwks.json based on User-Agent header

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I have a python application that’s been working fine for a long time that just today started failing with a 401 error when trying to fetch the public key from .well-known/jwks.json.

The error seems to be related to the User-Agent requet header.

“User-Agent: Python-urllib/3.12” - this will cause it to return 401 error.

Is this new behavior? My urllib library has not changed. I verified this using curl and manually overriding the user-agent header - if using “Python-urllib/3.12”, it fails. If I leave it alone and it defaults to “curl/7.81.0”, it works again.

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Hello @wingersoll,

Welcome to the Auth0 Community!

We are sorry for the inconvenience that this issue has provoked. The cause of it should have been a Cloudflare’s incident related to their internal service Global Network.

Cloudflare services are currently operating normally, and the incident has been marked as resolved, while more information on the progress that has been made can be found under this page - Cloudflare Status - Cloudflare Global Network experiencing issues.

Thank you and if the issue still persists please let us know!
Regards,
Remus

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