Need to close the payment interface if the payment fails. Now it showing error instead of close.

paymentRequest.on('paymentmethod', function(ev) {
    console.log('ev response',ev)
    
    that.accountService.makePaymentIntent(totAmt).then((data)=>{
      console.log("Promise resolved with: " + JSON.stringify(data));
      let clientSecret = data.data.client_secret;
      // Confirm the PaymentIntent without handling potential next actions (yet).
      stripe.confirmCardPayment(
        clientSecret,
        {payment_method: ev.paymentMethod.id},
        {handleActions: false}
      ).then(function(confirmResult) {
        console.log('confirmResult',confirmResult);

        if (confirmResult.error) {
          // Report to the browser that the payment failed, prompting it to
          // re-show the payment interface, or show an error message and close
          // the payment interface.
          ev.complete('fail');
        } else {
          // Report to the browser that the confirmation was successful, prompting
          // it to close the browser payment method collection interface.
          ev.complete('success');
          // Check if the PaymentIntent requires any actions and if so let Stripe.js
          // handle the flow. If using an API version older than "2019-02-11"
          // instead check for: `paymentIntent.status === "requires_source_action"`.
          if (confirmResult.paymentIntent.status === "requires_action") {
            // Let Stripe.js handle the rest of the payment flow.
            stripe.confirmCardPayment(clientSecret).then(function(result) {
              console.log('confirmCardPayment result',result);                  
              if (result.error) {
                // The payment failed -- ask your customer for a new payment method.
              } else {                    
                that.orderComplete(confirmResult, ev);
              }
            });
          } else {                                
            // The payment has succeeded.
            that.orderComplete(confirmResult, ev);                
          }
        }
      });
    }).catch((error)=>{
      ev.complete('success');
      console.log("Promise rejected with " + JSON.stringify(error));
      that.orderFailed(error);
    });
  });