List of Snipcart IP addresses for whitelisting private development site

Could we, or just myself, get a published list of the IPv4 CIDRs where Snipcarts requests for a website (e.x. when used to fetch products, or a product’s price/data-items) so we can convert our test/development eCommerce site to private access with whitelisting for Snipcart and our internal network?

Perhaps this isn’t necessary if the requests don’t come directly from Snipcart, though I imagine any communication back-and-forth require the JavaScript frontend on our site to communicate with Snipcart (push vs. pull). Please let me know.