https://www.iefimerida.gr/modules/custom/js/infinite.scroll.news.js?v=1.9

1'use strict';
2var urlParams = new URLSearchParams(window.location.search);
3var initPager = urlParams.get('page') ? urlParams.get('page') : 0;
4
5window.addEventListener('load', function () {
6  infiniteScroll(document.getElementsByClassName('infinite-load-term')[0]);
7});
8
9function infiniteScroll(contentBlock) {
10  var trigger = contentBlock.querySelectorAll('[data-observe]')[0];
11
12  var observer = new IntersectionObserver(function (entries, callback) {
13    entries.forEach(function (entry) {
14      if (entry.isIntersecting) {
15        var position = entry.target.dataset.nextCount;
16        changeUrl(position - 1);
17
18        if (entry.target.parentNode.classList.contains('init')) {
19          retrievePage(entry.target.parentNode, position);
20        }
21      }
22    });
23  });
24
25  if (trigger) {
26    observer.observe(trigger);
27  }
28}
29
30function changeUrl(pager) {
31  // Don't do anything if its initial page load.
32  if (initPager === pager) {
33    initPager = -1;
34    return;
35  }
36
37  var url = pager > 0 ?
38    window.location.origin + window.location.pathname + '?page=' + pager :
39    window.location.origin + window.location.pathname;
40
41  window.history.pushState(url, document.title, url);
42
43  if (typeof ga == 'function') {
44    ga('ief.send', {
45      hitType: 'pageview',
46      page: url,
47      title: document.title + ' | iefimerida.gr'
48    });
49    // Send infinite load event for analysis.
50    ga('ief.send', 'event', 'Infinite News Load', 'page', pager);
51  }
52
53  if (typeof ma == 'function') {
54    ma.trackView();
55    // Send infinite load event for analysis.
56    ma.trackEvent('Infinite News Load', 'page', 'page', pager);
57  }
58}
59
60function retrievePage(content, pager) {
61  var xhttp;
62
63  lazyLoadPushAds('in_category_1', pager);
64  xhttp = new XMLHttpRequest();
65  xhttp.onreadystatechange = function () {
66    if (this.readyState == 4 && this.status == 200) {
67      var node = document.createElement('template');
68      node.innerHTML = this.responseText;
69      var contentBlock = content.parentNode.appendChild(node.content.firstChild);
70      infiniteScroll(contentBlock);
71    }
72  };
73
74  xhttp.open('GET', '/infinite-load/news/' + pager, true);
75  xhttp.setRequestHeader('Cache-Control', 'no-cache, no-store, max-age=0');
76  xhttp.setRequestHeader('Pragma', 'no-cache');
77  xhttp.send();
78
79  content.classList.remove('init');
80  content.classList.add('loaded');
81}