jwt_auth_iss filter not working

[radicek]

From docs:

/**
 * Change the token issuer.
 *
 * @param string $iss The token issuer.
 * @return string The token issuer.
 */
add_filter(
    'jwt_auth_iss',
    function ( $iss ) {
        // Modify the "iss" here.
        return $iss;
    }
);

But when I try to set it, nothing happens, iss still defaults to site address 😕

add_filter( 'jwt_auth_iss', function () {
    // Default value is get_bloginfo( 'url' );
    return 'https://example.com';
});

[Parkerhiphop]

I found this:

wp-graphql-jwt-authentication/src/Auth.php

Lines 610 to 628 in 5d20262

	/**
	* Allow multiple domains to be used as token iss value
	* This is useful if you want to make your token valid over several domains
	* Default value is the current site url
	* Used along with the 'graphql_jwt_auth_token_before_sign' filter
	*/
	$allowed_domains = array(get_bloginfo('url'));
	$allowed_domains = apply_filters('graphql_jwt_auth_iss_allowed_domains', $allowed_domains);
	/**
	* The Token is decoded now validate the iss
	*/
	if ( ! isset( $token->iss ) || ! in_array( $token->iss, $allowed_domains ) ) {
	// See https://github.com/wp-graphql/wp-graphql-jwt-authentication/issues/111
	self::set_status(401);
	return new \WP_Error( 'invalid-jwt', __( 'The iss do not match with this server', 'wp-graphql-jwt-authentication' ) );
	}

If you want to fix the The iss do not match with this server, you can try

add_filter('graphql_jwt_auth_iss_allowed_domains', function($allowed_domains) {
    return array_merge($allowed_domains, [
       'https://example.com',
       'https://example-2.com'
    ]);
});