/** * 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', $request->get_route()); if (!$match) { continue; } $data = $handler->get_data_for_route($route, $endpoints, 'help'); $response->set_matched_route($route); break; } $response->set_data($data); return $response; }