Code Block Element doesn't handle shortcodes properly

Hi,

@Borlabs: The $http_response_header array is automatically populated with the HTTP response headers produced from calling the file_get_contents function.

// https://www.php.net/manual/en/function.get-headers.php

If it is returning as an undefined variable, try this fix.

// https://kriesi.at/support/topic/notice-undefined-variable-http_response_header-in-function-set-avia-frontend/#post-792020

Best regards,
Ismael