[wp-trac] [WordPress Trac] #52636: Add proper Cache-Control header to /wp-json REST endpoints

[WordPress Trac]

#52636: Add proper Cache-Control header to /wp-json REST endpoints
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 Reporter:  isaumya      |       Owner:  (none)
     Type:  enhancement  |      Status:  new
 Priority:  normal       |   Milestone:  Awaiting Review
Component:  REST API     |     Version:
 Severity:  major        |  Resolution:
 Keywords:  needs-patch  |     Focuses:  rest-api
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Comment (by TimothyBlynJacobs):

 WordPress doesn't send no-cache headers for the sitemap. The REST API also
 shouldn't for the same reasons WordPress doesn't send no-cache headers for
 other public pages as well.

 That plugin appears to be using  a `GET` request for something that has
 side effects. They should be using a `POST` request. If they want to keep
 using a `GET` request they can easily send no-cache headers themselves by
 adding it to the `WP_REST_Response` object they return from their
 endpoint.

 If you want to send no-cache headers globally you can use the existing
 `rest_send_nocache_headers` filter.

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Ticket URL: <https://core.trac.wordpress.org/ticket/52636#comment:4>
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