is used to indicate that particular server behaviors are preferred by the client, but not required for successful completion of the request.
Quick facts
Description
is used to indicate that particular server behaviors are preferred by the client, but not required for successful completion of the request.
Syntax
Prefer: return=representation
Related status codes
Frequently asked questions
is used to indicate that particular server behaviors are preferred by the client, but not required for successful completion of the request.
It is classified as a request header and can appear in requests or responses depending on context.
Sources & standards
Updated 2026-08-18
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