Fetching popperjs synchronously

Author: cotes2020

_includes/head.html

@@ -96,11 +96,12 @@
     <link rel="stylesheet" href="{{ site.baseurl }}/assets/css/syntax.css">
   {% endif %}
 
-
+  <!-- jquery -->
   <link rel="preload" as="script"
     href="https://cdn.jsdelivr.net/npm/[email protected]/dist/jquery.min.js"
     integrity="sha256-CSXorXvZcTkaix6Yvo6HppcZGetbYMGWSFlBw8HfCJo=" crossorigin="anonymous">
 
+  <!-- popper -->
   <link rel="preload" as="script"
     href="https://cdn.jsdelivr.net/npm/[email protected]/dist/umd/popper.min.js"
     integrity="sha256-fTuUgtT7O2rqoImwjrhDgbXTKUwyxxujIMRIK7TbuNU=" crossorigin>
@@ -113,7 +114,7 @@
   </script>
 
   <script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/umd/popper.min.js"
-    integrity="sha256-fTuUgtT7O2rqoImwjrhDgbXTKUwyxxujIMRIK7TbuNU=" crossorigin="anonymous" async></script>
+    integrity="sha256-fTuUgtT7O2rqoImwjrhDgbXTKUwyxxujIMRIK7TbuNU=" crossorigin="anonymous"></script>
 
   <script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.min.js"
     integrity="sha256-5+02zu5UULQkO7w1GIr6vftCgMfFdZcAHeDtFnKZsBs=" crossorigin="anonymous" async></script>