https://www.japan-experience.com/modules/custom/vlj_content/js/video.js?v=1.0.0

1if (!Element.prototype.matches) {
2  Element.prototype.matches =
3    Element.prototype.matchesSelector ||
4    Element.prototype.mozMatchesSelector ||
5    Element.prototype.msMatchesSelector ||
6    Element.prototype.oMatchesSelector ||
7    Element.prototype.webkitMatchesSelector ||
8    function(s) {
9      var matches = (this.document || this.ownerDocument).querySelectorAll(s);
10      var i = matches.length;
11      while (--i >= 0 && matches.item(i) !== this) {}
12      return i > -1;
13    };
14}
15
16function playVideo(button) {
17  let container = button.nextElementSibling;
18
19  if (!container) {
20    console.error('Video container not found');
21    return;
22  }
23
24  container.style.display = 'block';
25  button.style.display = 'none';
26
27  setTimeout(function() {
28    let iframe = container.querySelector('iframe');
29
30    if (!iframe) {
31      console.error('Iframe not found in container');
32      return;
33    }
34
35    let src = iframe.src || iframe.getAttribute('src');
36
37    if (!src) {
38      console.error('Iframe src is empty');
39      return;
40    }
41
42    let urlMatch = src.match(/[?&]url=([^&]+)/);
43
44    if (!urlMatch || !urlMatch[1]) {
45      console.error('Could not find url parameter in oEmbed src');
46      return;
47    }
48
49    let decodedUrl = decodeURIComponent(urlMatch[1]);
50
51    let videoId = extractYouTubeId(decodedUrl);
52
53    if (!videoId) {
54      console.error('Could not extract YouTube video ID');
55      return;
56    }
57
58    let newSrc = 'https://www.youtube.com/embed/' + videoId + '?autoplay=1&enablejsapi=1';
59
60    iframe.setAttribute('allow', 'accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture');
61
62    iframe.setAttribute('src', newSrc);
63
64    if (iframe.src !== newSrc) {
65      iframe.src = newSrc;
66    }
67
68  }, 100);
69}
70
71function extractYouTubeId(url) {
72
73  let match = url.match(/[?&]v=([^&]+)/);
74
75  if (match && match[1]) {
76    return match[1];
77  }
78
79  match = url.match(/youtu\.be\/([^?&]+)/);
80  if (match && match[1]) {
81    return match[1];
82  }
83
84  match = url.match(/youtube\.com\/embed\/([^?&]+)/);
85  if (match && match[1]) {
86    return match[1];
87  }
88
89  match = url.match(/youtube\.com\/v\/([^?&]+)/);
90  if (match && match[1]) {
91    return match[1];
92  }
93
94  return null;
95}