It’s has been a while since I ever hosted FM pro in the web. I remember starting with the Lasso CGI before FileMaker came up with their own solution 
(Good old times, I loved to work with FileMaker Pro for over a decade)
Shameless plug: check out my post about my recent stack suite. The demo furniture shop I linked in the post is done using RW, Stacks, PaySnap, Stripe (and PayPal, but that’s disabled for the moment) and Airtable.