checkoutHandler.open({
        name: 'Lienzo',
        description: 'Vincula tu tarjeta de crédito.',
        panelLabel: 'Guardar',
        email: billingEmailAddress,//« So that Stripe doesn't prompt for an email address
        locale: 'auto',
        zipCode: false,
        allowRememberMe: false,
        closed: ()=>{
          // If the Checkout dialog was cancelled, resolve undefined.
          if (!hasTriggeredTokenCallback) {
            resolve();
          }
        },
        token: (stripeData)=>{

          // After payment info has been successfully added, and a token
          // was obtained...
          hasTriggeredTokenCallback = true;

          // Normalize token and billing card info from Stripe and resolve
          // with that.
          let stripeToken = stripeData.id;
          let billingCardLast4 = stripeData.card.last4;
          let billingCardBrand = stripeData.card.brand;
          let billingCardExpMonth = String(stripeData.card.exp_month);
          let billingCardExpYear = String(stripeData.card.exp_year);

          resolve({
            stripeToken,
            billingCardLast4,
            billingCardBrand,
            billingCardExpMonth,
            billingCardExpYear
          });
        }
      });