CrazyLine add to cart onClick

var data = "product=271317&selected_configurable_option=&related_product=&form_key=s5piFgV5L9gg3MTo&super_attribute%5B93%5D=29&super_attribute%5B158%5D=43&qty=1";
var url = "https://www.crazyline.com/checkout/cart/add/uenc/aHR0cHM6Ly93d3cuY3JhenlsaW5lLmNvbS9tMTYzODg3MTA,/product/271317/";

fetch(url, {
    method: 'POST',
    headers: {
        'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8'
    },
    body: data
}).then(function() {
    require(['Magento_Customer/js/customer-data'], function(customerData) {
        var sections = ['cart'];
        customerData.invalidate(sections);
        customerData.reload(sections, true);
        document.location.reload();
    });
}).catch(function(err) {
    console.log(err)
});