HTTP Status Code: 425 Too Early
A 425 (Too Early) status code indicates that the server is unwilling to risk processing a request that might be replayed. User agents that send a request in early data are expected to retry the request when receiving a 425 (Too Early) response status code. A user agent SHOULD retry automatically, but any retries MUST NOT be sent in early data. (RFC 8470: Using Early Data in HTTP)
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