remove domain mapping on checkout

Hi guys, so i have the domain mapping set up, and i have mapped a domain, working fine fine.

The multisite is with subfolders, like myfantasticnetwork.com/site1
I have ssl added to the multisite and that works fine and is used for the pro sites stripe checkout.

I have also tested it with my adding a woocommerce shop on site1 with stripe checkout works fine....

But when I domain map site1, I cant get it to unmap site1.com/checkout, i would like that to be myfantasticnetwork.com/site1/checkout

I have tried to add the checkout to the exclude list in the subsites domain mapping menu, but not working...

How can i get this to work?