mod_http_oauth2: Enforce response type encoded in client_id The client promises to only use this response type, so we should hold them to that. This makes it fail earlier if the response type is disabled or the client is trying to use one that it promised not to use. Better than failing after login and consent.

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labels:
- Statistics
summary: Collect statistics on user registration
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Description
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This module measures the rate at which users register on the server (through
providers like `mod_register_ibr` or `mod_register_web`).