Setting Blank HTTP headers breaks cron

Hi, just wanted to let you know that if you set Blank HTTP headers in the firewall section, cron will break. This is because the WordPress cron does not set any headers. This will result in the server’s IP address being added to the permanent block list. In my case, it was an IPv6 address.

Not sure if there’s an easy way for the plugin to automatically detect the server’s IP address and whitelist them?