My website uses Design My Night as a their reservation system (embedded as a widget on my squarespace site). The platform allows you to add a re-direct once the booking has been made which i've done on the widget backend.
However, when the booking is complete squarespace doesn't redirect it. Instead it just goes to a blank page which is confusing our customers.
The platform says to ensure this- "The return will be made as a POST request, so please ensure your webserver and application can accept POST requests from the designmynight.com domain, including any subdomains."
I've spoken to squarespace directly but they are unable to help. Does anyone have experience on this or is able to point me in the right direction??