rest_exposed_cors_headers

Filter Hook

Description

Filters the list of response headers that are exposed to REST API CORS requests.

Hook Information

File Location	`wp-includes/rest-api/class-wp-rest-server.php` View on GitHub
Hook Type	Filter
Line Number	`406`

Hook Parameters

Type	Name	Description
`string[]`	`$expose_headers`	The list of response headers to expose.
`WP_REST_Request`	`$request`	The request in context.

Usage Examples

Basic Usage

<?php
// Hook into rest_exposed_cors_headers
add_filter('rest_exposed_cors_headers', 'my_custom_filter', 10, 2);

function my_custom_filter($expose_headers, $request) {
    // Your custom filtering logic here
    return $expose_headers;
}

Source Code Context

wp-includes/rest-api/class-wp-rest-server.php:406 - How this hook is used in WordPress core

<?php
 401  		 * @since 6.3.0 The `$request` parameter was added.
 402  		 *
 403  		 * @param string[]        $expose_headers The list of response headers to expose.
 404  		 * @param WP_REST_Request $request        The request in context.
 405  		 */
 406  		$expose_headers = apply_filters( 'rest_exposed_cors_headers', $expose_headers, $request );
 407  
 408  		$this->send_header( 'Access-Control-Expose-Headers', implode( ', ', $expose_headers ) );
 409  
 410  		$allow_headers = array(
 411  			'Authorization',

PHP Documentation

<?php
/**
		 * Filters the list of response headers that are exposed to REST API CORS requests.
		 *
		 * @since 5.5.0
		 * @since 6.3.0 The `$request` parameter was added.
		 *
		 * @param string[]        $expose_headers The list of response headers to expose.
		 * @param WP_REST_Request $request        The request in context.
		 */

Quick Info

Hook Type: Filter
Parameters: 2
File: wp-includes/rest-api/class-wp-rest-server.php

Links

WordPress Docs View Source Code Search Examples

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