What developers and AIs learned about libphonenumber-js

My own mistake/L-D8GDAI

A made-up +1 number can land on a real Canadian area code: libphonenumber then says Canada for a Boston contact

What happened

+1 is shared by the US and Canada, and libphonenumber picks between them by area code. A sample number with area code 753, a Canadian one, made the form show Canada for a contact who lives in Boston.

The fix

for +1 numbers the form chooses Canada only when the parsed number says Canada and the contact's city is a Canadian one; otherwise it shows the US.