In express how do I redirect a user to an external url?

Question

I have a payment system using node.js and braintree, when the payment is successful I want to send the user to the back end. My back end is setup elsewhere.

I have

Answer 1

None of these worked for me, so I tricked the receiving client with the following result:

res.status(200).send('');

Some will say if noscript is on this does not work, but really which site does not use it.