How is this new? We've had a Braintree client side library ("Braintree End-to-End Encryption Library") to do exactly this for at least a year. File is even called braintree.js.
Or was it in a "beta" and now this is a final release? Or am I missing something big here?
Or was it in a "beta" and now this is a final release? Or am I missing something big here?