I would like to be able replace “ZIP” in the postalCode placeholder with “Postal Code” for our Canadian users. Likewise, I’d like the error text to use the word “Postal Code” instead of “Zip Code”. Is this possible to do?
The Card payment method of the Web Payments SDK automatically infers whether to display the ZIP code, postal code, or postcode based on the issuing country of the buyer’s credit card. Depending on the card that’s used, the SDK automatically removes the postal code if the card’s issuing country does not require the postal code for the payment. 
Ok, I was thinking that was how it would work, just had no way of testing it out. Thanks!