startExpressCheckoutWithAddon(startCheckout)" :disabled="loading" class="button checkout-with-addon">
{{loading? "Loading" : goToCheckoutWithAddonButtonText}}
startExpressCheckoutWithoutAddon(startCheckout)" :disabled="loading" class="button checkout-without-addon" style="font-weight: 700;">
{{loading? "Loading" : goToCheckoutWithoutAddonButtonText}}