// REFERENCE
413 Payload Too Large
Class: 4xx
The request body exceeds the server limit (typical when uploading a large file). Adjust limits like client_max_body_size (nginx) or upload_max_filesize (PHP).
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Work with this in:
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400
400 Bad Request 401
401 Unauthorized (not authenticated) 403
403 Forbidden (access denied) 404
404 Not Found 405
405 Method Not Allowed 406
406 Not Acceptable
400 Bad Request 401
401 Unauthorized (not authenticated) 403
403 Forbidden (access denied) 404
404 Not Found 405
405 Method Not Allowed 406
406 Not Acceptable
Semantics per RFC 9110 and the IANA status code registry. Educational content.