createPaymentToken should return info about the life time of the token

[netbull]

It will be good the PaymentTokenResponse to return a timestamp or something with the lifetime of the token.

Currently there is no way to validate the token and recreate a new one if is necessary and it returns Timeout

[stefanpolzer]

+1 but this must be implmetent on the Server site first

[zirnipa]

Hi,
we are now communicating the timeout via frame message:
https://jsfiddle.net/xLtg9ksu

regards,
Patrick