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rest_send_cors_headers › WordPress Function

Since4.4.0
Deprecatedn/a
› rest_send_cors_headers ( $value )
Parameters:
  • (mixed) $value Response data.
    Required: Yes
Returns:
  • (mixed) Response data.
Defined at:
Codex:

Sends Cross-Origin Resource Sharing headers with API requests.



Related Functions: rest_send_allow_header, send_origin_headers, register_column_headers, send_nosniff_header, get_column_headers

Source 

function rest_send_cors_headers( $value ) {
	$origin = get_http_origin();

	if ( $origin ) {
		// Requests from file:// and data: URLs send "Origin: null".
		if ( 'null' !== $origin ) {
			$origin = sanitize_url( $origin );
		}
		header( 'Access-Control-Allow-Origin: ' . $origin );
		header( 'Access-Control-Allow-Methods: OPTIONS, GET, POST, PUT, PATCH, DELETE' );
		header( 'Access-Control-Allow-Credentials: true' );
		header( 'Vary: Origin', false );
	} elseif ( ! headers_sent() && 'GET' === $_SERVER['REQUEST_METHOD'] && ! is_user_logged_in() ) {
		header( 'Vary: Origin', false );
	}

	return $value;
}