apply_filters( 'rest_allowed_cors_headers', string[] $allow_headers )

Filters the list of request headers that are allowed for REST API CORS requests.


Description

The allowed headers are passed to the browser to specify which headers can be passed to the REST API. By default, we allow the Content-* headers needed to upload files to the media endpoints.
As well as the Authorization and Nonce headers for allowing authentication.


Parameters

$allow_headers

The list of request headers to allow.


Source

File: wp-includes/rest-api/class-wp-rest-server.php

View on GitHub


Changelog

Changelog
Version Description
5.5.0 Introduced.