remove_header example

/** * Filters whether to send nocache headers on a REST API request. * * @since 4.4.0 * * @param bool $rest_send_nocache_headers Whether to send no-cache headers. */
        $send_no_cache_headers = apply_filters( 'rest_send_nocache_headers', is_user_logged_in() );
        if ( $send_no_cache_headers ) {
            foreach ( wp_get_nocache_headers() as $header => $header_value ) {
                if ( empty( $header_value ) ) {
                    $this->remove_header( $header );
                } else {
                    $this->send_header( $header, $header_value );
                }
            }
        }

        /** * Filters whether the REST API is enabled. * * @since 4.4.0 * @deprecated 4.7.0 Use the {@see 'rest_authentication_errors'} filter to * restrict access to the REST API. * * @param bool $rest_enabled Whether the REST API is enabled. Default true. */