Update Bigcommerce Environment

[SeanRizarre]

Added this code:

<script>
    const xhrResponseSource = (callback) => {
        const origOpen = XMLHttpRequest.prototype.open;
        XMLHttpRequest.prototype.open = function () {
            this.addEventListener("load", () => callback(this));
            origOpen.apply(this, arguments);
        };
    };

    const isTrackerLoaded = (callback) => {
    if (window.tracker) {
        callback();
    } else {
        let trackerLoaded = false;
        const intervalId = setInterval(() => {
        if (window.tracker && !trackerLoaded) {
            trackerLoaded = true;
            clearInterval(intervalId);
            callback();
        }
        }, 100);
    }
    };

    const trackTransaction = (transaction) => {
        window.tracker(
            "addTrans",
            transaction.orderId.toString(),
            "N/A",
            parseFloat(transaction.orderAmount),
            parseFloat(transaction.taxTotal) || 0,
            parseFloat(transaction.shippingCostTotal) || 0,
            (transaction.billingAddress.city || "N/A").toString(),
            (transaction.billingAddress.stateOrProvinceCode || "N/A").toString(),
            (transaction.billingAddress.countryCode || "N/A").toString(),
            "USD"
        );

        transaction.lineItems.physicalItems.forEach((item) => {
            const { productId, sku, name, listPrice, quantity } = item;
            window.tracker(
            "addItem",
            transaction.orderId.toString(),
            item.sku.toString(),
            (item.name || "N/A").toString(),
            "N/A",
            parseFloat(item.listPrice || 0),
            parseInt(item.quantity || 1),
            "USD"
            );
        });
        window.tracker("trackTrans");
    };

    xhrResponseSource((xhr) => {
    const transaction = JSON.parse(JSON.stringify(JSON.parse(xhr.responseText)));

    if (transaction.status && transaction.orderAmount > 0) {
        try{
        isTrackerLoaded(() => {
        trackTransaction(transaction);
        });
    } catch (error) {
        console.log("Error: ", error);
    }
    }
    });
</script>