stripe.confirmSepaDebitPayment(
    clientSecretInput.value,
    {
      payment_method: {
        id: "pm_123",
      },
      customer: cus_123,
      setup_future_usage: "off_session",
      mandate_data: {
      customer_acceptance: {
        type: "online",
        online: {
            infer_from_client: "true"
        }
      }
    },
    }).then(function(result) {
      // ...
  });