REST API: Include Vary: Origin in cors headers

`vary: origin` is a W3 CORS implementation recommendation( https://www.w3.org/TR/cors/#resource-implementation ). It's used by default in frameworks such as hapi and Laravel-cors. Overall, it helps sites siting behind a cache such as varnish.

Fixes #38060.
Props procodewp, pdufour for research.


Built from https://develop.svn.wordpress.org/trunk@38806


git-svn-id: http://core.svn.wordpress.org/trunk@38749 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Aaron Jorbin 2016-10-17 16:11:30 +00:00
parent 1e54943b0f
commit 969e4255a9
2 changed files with 2 additions and 1 deletions

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@ -408,6 +408,7 @@ function rest_send_cors_headers( $value ) {
header( 'Access-Control-Allow-Origin: ' . esc_url_raw( $origin ) );
header( 'Access-Control-Allow-Methods: POST, GET, OPTIONS, PUT, DELETE' );
header( 'Access-Control-Allow-Credentials: true' );
header( 'Vary: Origin' );
}
return $value;

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@ -4,7 +4,7 @@
*
* @global string $wp_version
*/
$wp_version = '4.7-alpha-38805';
$wp_version = '4.7-alpha-38806';
/**
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.