One of the biggest banks in Hungary, OTP (https://www.otpbank.hu), provides an online payment processing service, which companies can use to accept credit and debit cards (so like Stripe, for example). The way it works is, the company website redirects to the bank's payment site, where you can fill out the card details. Unfortunately 1Password can't do this at the moment, filling only the security code, because that is the only one it can identify, being a password field.
Could this be improved, so that all (or most) of the fields are correctly filled?
An example site that uses this payment processor is https://pizzaforte.hu (pizza delivery, needs registration unfortunately), if you need it to experiment. I also saved the actual card form page (html + css), which I can send to you if you need it, but prefer not to share it publicly.
Here's a screenshot of the payment interface, with beautifully annotated fields:
1Password Version: Not Provided
Extension Version: 1.14.2
OS Version: Windows 10
Sync Type: Not Provided