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twins-upstream/PROPOSALS.md
Trevor Slocum 05da75b22b Fix cache attribute parsing
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This page is also available at gemini://twins.rocketnine.space/proposals.gmi

The following proposals add fields to the response header of successful requests.

Standard successful response header (for comparison):

20 text/gemini; charset=utf-8

These additions are backwards-compatible as specified in RFC 2045:

MIME implementations must ignore any parameters whose names they do not recognize.

The terms MAY, SHOULD and SHOULD NOT are defined in RFC 2119.

Cache

Gemini servers MAY include a duration (in seconds) which a client SHOULD cache a resource when the request is successful. When a cache duration of 0 or less is provided, clients SHOULD NOT cache the resource.

Cache for one week:

20 text/gemini; charset=utf-8; cache=604800

Do not cache:

20 text/gemini; charset=utf-8; cache=0

Size

Gemini servers SHOULD include the size (in bytes) of the response body when the request is successful. Clients SHOULD utilize this information when downloading files to indicate progress.

20 text/gemini; charset=utf-8; size=1108