https://www.unep.org/themes/custom/UNEP_3Spot/js/sched-embed.js?tm4for

1/**
2 * @file
3 * Loads the correct Sched.com embed.js for a schedule page.
4 *
5 * Sched's embed.js always targets the same fixed element id (#sched-embed) and
6 * injects its own instance's schedule into it. Loading several instances'
7 * embed.js globally makes them race for that single element, so the wrong
8 * schedule can win. Instead, read the intended instance from the #sched-embed
9 * anchor's href (e.g. //inc522025.sched.com/) and inject only that one script.
10 */
11(function (Drupal, once) {
12  'use strict';
13
14  Drupal.behaviors.schedEmbed = {
15    attach: function (context) {
16      once('sched-embed', '#sched-embed', context).forEach(function (el) {
17        if (!el.href) {
18          return;
19        }
20
21        var host = new URL(el.href, window.location.href).hostname;
22
23        // Only ever load scripts from Sched.
24        if (!/\.sched\.com$/.test(host)) {
25          return;
26        }
27
28        var src = '//' + host + '/js/embed.js';
29
30        // Guard against loading the same instance twice.
31        if (document.querySelector('script[src="' + src + '"]')) {
32          return;
33        }
34
35        var script = document.createElement('script');
36        script.src = src;
37        script.async = true;
38        document.body.appendChild(script);
39      });
40    }
41  };
42})(Drupal, once);