web - How to prevent "back" button after success redirect from payment system? -


i have payment form on site , following question:

when user press "purchase button", payment form opened on secure bank's page. when user filled payment form , press "submit" hi sms confirm payment.

after success confirmation redirected success_url out shop.

the problem begins when user press back button in browser because hi again receive sms confirmation.

how prevent send sms again?

the post/redirect/get method. sending 303 http response tell browser replace page in history , avoid re-sending posted data.

i can't post example don't know programming language using.


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