[Bug]: Invalid locale prevents userinfo lookup

[muir]

Preflight Checklist

• I could not find a solution in the documentation, the existing issues or discussions
• I have joined the ZITADEL chat

Version

v3.27.0

Describe the problem caused by this bug

The userinfo call is failing due to an marshal problem with the locale. I don't care about locale. At all. I do care that a paying customer cannot log in.

To reproduce

I'm not sure what value is being presented by Okta. Their IT says that all their users have locale=null but somehow some can log in and others cannot.

Screenshots

No response

Expected behavior

Ignore locale if it's not avalid

Additional Context

I'll propose a fix to ignore all unmarshal errors with locale.

[muhlemmer]

I'm not sure what value is being presented by Okta. Their IT says that all their users have locale=null but somehow some can log in and others cannot.

Yet, it would be really good to know what they are sending. JSON null works. Don't tell me those muppets are sending a quoted "null" string.

On a side note, for your future debugging efforts, we have added the Error.WithReturnParentToClient which can help understanding these type of errors.