OPDC API error code

MESSAGE_TOO_LARGE

HTTP status 413

The request or its reply is larger than this API key allows. 413. Nothing was sent or written.

The API answers with a problem document (RFC 9457) whose type is https://twinn.engineering/errors/message-too-large, and with X-Error-Code: MESSAGE_TOO_LARGE. Branch on the code, never on the detail text.

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