Problem with redirect to Node.js Express JavaScript kiwi payment form?

Question

Qiwi

Hello, here is such a problem, when you click the button, you need to redirect a person to the qiwi payment form (it seems to be created normally), such an error appears in the console.

Here is the code that I have in the main server script

app.get('/create-payment', function (req, res) {
  res.redirect(qiwi());
})

Qiwi is a payment form creation function

and here is the button click script

document.querySelectorAll('.payments').forEach(function(element){
  element.onclick = createPayment;
});

function createPayment() {
  fetch('/create-payment',
      {
          method: 'GET'
      }
  ).then(function (response) {
      return response.text();
  }
  )
}

What could be the problem? Help

Answer 1

1 Error - https://expressjs.com/en/resources/middleware/cors.html . Documentation to help.
2 Error - You are redirecting to an AJAX request, not to the user's browser page.
Send a link to the redirect to him in json, for example.
When the answer comes, do a redirect from the browser.