[lawl]

I wouldn't mind entering my ZIP to precalculate the shipping costs. But seriously, Shipping costs are a lame excuse. There is nothing that stops paypal to call back to the shop to get the shipping costs. Or just make a CORS request from the browser itself and have the shop sign the shipping costs so paypal knows.

> Sure your cart page says you'll charge X amount, there is NOTHING keeping you from charging some other arbitrary amount when they press pay.

Which is exactly why I only use shops with paypal where I see the amount charged on paypal.com if I don't completely trust the shop. I was under the impression that this was the value paypal provides. Apparently I was wrong. Might as well get a prepaid credit card now.