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There are a million sites out there with credit card forms with 16 digit validation for Visa and Mastercard, so it wouldn't be entirely painless to introduce ex
by paublyrne 8y ago
There are a million sites out there with credit card forms with 16 digit validation for Visa and Mastercard, so it wouldn't be entirely painless to introduce extra digits.
- AmericanChopper 8y agoIt’s not really the customer facing web apps that would be a problem here. But I can tell you, anybody who’s tried to do validation on credit card numbers has experience with failing at doing validation on credit card numbers.