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self.addEventListener('canmakepayment', (event) => {
event.respondWith(true);
});
async function responder(event) {
const methodName = event.methodData[0].supportedMethods;
if (!event.changePaymentMethod) {
return {
methodName,
details: {
changePaymentMethodReturned:
'The changePaymentMethod() method is not implemented.',
},
};
}
let changePaymentMethodReturned;
try {
const response = await event.changePaymentMethod(methodName, {
country: 'US',
});
changePaymentMethodReturned = response;
} catch (err) {
changePaymentMethodReturned = err.message;
}
return {methodName, details: {changePaymentMethodReturned}};
}
self.addEventListener('paymentrequest', (event) => {
event.respondWith(responder(event));
});