rest_send_allow_header

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Summery Summery

Sends the “Allow” header to state all methods that can be sent to the current route.

Syntax Syntax

rest_send_allow_header( WP_REST_Response $response, WP_REST_Server $server, WP_REST_Request $request )

Parameters Parameters

$response

(WP_REST_Response) (Required) Current response being served.

$server

(WP_REST_Server) (Required) ResponseHandler instance (usually WP_REST_Server).

$request

(WP_REST_Request) (Required) The request that was used to make current response.

Return Return

(WP_REST_Response) Response to be served, with "Allow" header if route has allowed methods.

Source Source

File: wp-includes/rest-api.php

		header( 'Vary: Origin', false );
	} elseif ( ! headers_sent() && 'GET' === $_SERVER['REQUEST_METHOD'] && ! is_user_logged_in() ) {
		header( 'Vary: Origin', false );
	}

	return $value;
}

/**
 * Handles OPTIONS requests for the server.
 *
 * This is handled outside of the server code, as it doesn't obey normal route
 * mapping.
 *
 * @since 4.4.0
 *
 * @param mixed           $response Current response, either response or `null` to indicate pass-through.
 * @param WP_REST_Server  $handler  ResponseHandler instance (usually WP_REST_Server).
 * @param WP_REST_Request $request  The request that was used to make current response.
 * @return WP_REST_Response Modified response, either response or `null` to indicate pass-through.
 */
function rest_handle_options_request( $response, $handler, $request ) {
	if ( ! empty( $response ) || $request->get_method() !== 'OPTIONS' ) {
		return $response;
	}

	$response = new WP_REST_Response();
	$data     = array();

	foreach ( $handler->get_routes() as $route => $endpoints ) {
		$match = preg_match( '@^' . $route . '$@i', $request->get_route(), $matches );

		if ( ! $match ) {
			continue;
		}

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Changelog Changelog

Changelog
Version Description
4.4.0 Introduced.

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