Ory is the largest open source community in the world for cloud software application security. We maintain advanced open source security software solving authentication, authorization, access control, application network security, and delegation. Ory implements a variety of industry and best-practice standards including OAuth 2.0 / OAuth 2.1, OpenID Connect, Zero Trust Networking, Google Zanzibar Policy Framework, FIDO2 U2F, WebAuthn, TOTP, and more.

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<@U04UQ68083H> what is missing if i get the error "reason": "refusing to parse login_challenge query parameter because oauth2_provider.url is invalid or unset"

The error message you're seeing, "refusing to parse login_challenge query parameter because oauth2_provider.url is invalid or unset", suggests that the `oauth2_provider.url` configuration in your Ory setup is either not set or is invalid.  The `oauth2_provider.url` is a critical configuration that Ory uses to interact with the OAuth2 provider. It should be a valid URL pointing to your OAuth2 provider.  You should check your Ory configuration and ensure that the `oauth2_provider.url` is correctly set to a valid URL. If it's not set, you should set it to the correct value. If it's set but the URL is invalid, you should correct it.  Unfortunately, the provided knowledge sources do not contain specific instructions on how to set or correct this configuration. For more detailed instructions, you should refer to the Ory documentation or the specific documentation for the Ory tool you're using (e.g., Hydra, Kratos, etc.).