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.


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Parameters

$allow_headers

(string[]) The list of request headers to allow.


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Source

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

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Changelog

Changelog
Version Description
5.5.0 Introduced.

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