YT Lazy Load & Bootstrap 3.4.1 update (#88)

Author: arcivanov

_includes/layout/footer.html

@@ -15,8 +15,8 @@
         integrity="sha256-CSXorXvZcTkaix6Yvo6HppcZGetbYMGWSFlBw8HfCJo="
         crossorigin="anonymous"></script>
 <script src="/js/jquery-ui-1.10.3.custom.min.js"></script>
-<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"
-        integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa"
+<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.1/js/bootstrap.min.js"
+        integrity="sha384-aJ21OjlMXNL5UyIl/XNwTMqvzeRMZH2w8c5cRVpzpU8Y5bApTppSuUkhZXN0VxHd"
         crossorigin="anonymous"></script>
 <script src="https://cdn.rawgit.com/afeld/bootstrap-toc/v0.4.1/dist/bootstrap-toc.min.js"></script>
 <script src="/js/tabcontent.js"></script>

_includes/layout/metaAndStyles.html

@@ -21,10 +21,10 @@
 <link rel="apple-touch-icon" href="/img/logo-apple-touch-icon.png">
 
 <link rel="stylesheet" type="text/css" href="https://fonts.googleapis.com/css?family=Oleo+Script:700"/>
-<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css"
-      integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
-<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap-theme.min.css"
-      integrity="sha384-rHyoN1iRsVXV4nD0JutlnGaslCJuC7uwjduW9SVrLvRYooPp2bWYgmgJQIXwl/Sp" crossorigin="anonymous">
+<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap.min.css"
+      integrity="sha384-HSMxcRTRxnN+Bdg0JdbxYKrThecOKuH5zCYotlSAcp1+c8xmyTe9GYg1l9a69psu" crossorigin="anonymous">
+<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap-theme.min.css"
+      integrity="sha384-6pzBo3FDv/PJ8r2KRkGHifhEocL+1X2rVCTTkUfGk7/0pbek5mMa1upzvWbrUbOZ" crossorigin="anonymous">
 <link rel="stylesheet" href="https://cdn.rawgit.com/afeld/bootstrap-toc/v0.4.1/dist/bootstrap-toc.min.css">
 <link rel="stylesheet" type="text/css" href="/css/highlightjs.css"/>
 <link rel="stylesheet" type="text/css" href="/css/tabcontent.css"/>

index.html

@@ -206,7 +206,9 @@ <h2>
                     Watch the Presentation
                 </h2>
                 <div class="embed-responsive embed-responsive-16by9">
-                    <iframe class="embed-responsive-item" src="https://www.youtube.com/embed/iQU18hAjux4"
+                    <iframe class="embed-responsive-item" width="560" height="315" src="https://www.youtube.com/embed/iQU18hAjux4"
+                            title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share"
+                            loading="lazy"
                             allowfullscreen></iframe>
                 </div>
             </div>