[wp-trac] [WordPress Trac] #57752: Improve rest_(allowed|exposed)_cors_headers filters

[WordPress Trac]

#57752: Improve rest_(allowed|exposed)_cors_headers filters
-------------------------+-----------------------------
 Reporter:  bor0         |      Owner:  (none)
     Type:  enhancement  |     Status:  new
 Priority:  normal       |  Milestone:  Awaiting Review
Component:  REST API     |    Version:  trunk
 Severity:  normal       |   Keywords:
  Focuses:               |
-------------------------+-----------------------------
 In a use case where there are multiple REST endpoints, but we only want to
 expose specific headers for specific endpoints, the filters
 `rest_allowed_cors_headers` and `rest_exposed_cors_headers` do not have
 any request in context and are quite limited in that regard.

 It would've been ideal if we could write our code as such:

 {{{
 add_filter( 'rest_exposed_cors_headers', function( $headers, $request ) {
         if ( '/foo/bar' === $request->get_route() ) {
                 $headers[] = 'X-RateLimit-Limit';
         }
         return $headers;
 }, 10, 2 );
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/57752>
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