How to add to the white list transitions to external links via a redirect?

To go to external links, I use a redirect through a structure

http://my_site.com/go/http://some_external_link.com

Firewall blocks such redirections.

How to correctly add a rule to the white list so the firewall does not block transitions to external links through such a structure?

https://wordpress.org/plugins/wp-simple-firewall/