Need Help

i am creating applepay magento2 extension this is my code

placeOrderApplePay :function (){


var paymentRequest = {

"countryCode": "US",

"currencyCode": "USD",

"merchantCapabilities": [

"supports3DS"

],

"supportedNetworks": [

"visa",

"masterCard",

"amex",

"discover"

],

"total": {

"label": "My Store (Card is not charged)",

"type": "final",

"amount": "1.99"

}

};


var session = new ApplePaySession(3, paymentRequest);

session.onvalidatemerchant = function (event) {

jQuery.ajax({

url: 'https://www.jumla-sa.com/Mage23/applepay/',

method: "POST",

contentType: "application/json; charset=utf-8",

//data: JSON.stringify(validationData)

}).then(function (merchantSession) {

session.completeMerchantValidation(JSON.parse(merchantSession));

console.log(JSON.parse(merchantSession));

}, function (error) {

alert("merchant validation unsuccessful: " + JSON.stringify(error));

session.abort();

});

}


session.begin();

}

but i am getting error payment can not completed