darana

1. add snippet to cart.liquid file at the bottom of the file
{% include 'upsell-modal' %}

2. add css to theme.liquid in the header
{{ 'upsell-modal.scss' | asset_url | stylesheet_tag }}

darana

(function(window) {
  'use strict';

  var raf = window.requestAnimationFrame;

  var CLOSESNESS = 2;

  function startLoop(fn) {
    var running = false;
    var lastExit;