soda GA event + add to card

(function(){
    var sourceURL = window.location.origin + '/cart/add.js';
    var productId = '12321242611754';
    var eventType = 'Adoric - Carousel Recipe Rose Paloma A/B';
    var data = JSON.stringify({id: productId, quantity: 1});
    var eventElementType = 'Added to the cart';
    var productName = 'Rose Paloma One Item (Soda Press Pink Grapefruit - 500ml)';
    var xhr = new XMLHttpRequest();
    xhr.withCredentials = true;
    xhr.open('POST', sourceURL);
    xhr.setRequestHeader('Content-Type', 'application/json; charset=utf-8');
	xhr.setRequestHeader('cache-control', 'no-cache');
    function pushCustomGAEvent(eventType, eventElementType, elementId) {
        if (window.preDataLayer) {
            window.preDataLayer.push({
                event: 'newEvent',
                newEventData: {
                    type: eventType,
                    elementType: eventElementType,
                    elementId: elementId
                }
            });
        }
    }
    xhr.addEventListener('readystatechange', function() {
        if (this.readyState === 4) {
            pushCustomGAEvent(eventType, eventElementType, productName);
			window.location.href = window.location.origin + '/cart';
        }
    });
    xhr.send([data]);
})();