Hi @tpphost,
I just finished integrating easyshipper into a Canadian website and ran into the same problem. It turns out that the code doesn’t include country parameters in its API calls to EasyPost, resulting it everything working beautifully within USA only.
I have modified the easy shipper code on our site and got it working. I haven’t packed my mods yet or shared it with the author, but if you’re still in a panic I could consult on helping you get your wife’s site shipping to Canada. ??