Update dependencies

public/html/admin.html

@@ -8,7 +8,8 @@
   <meta name="robots" content="noindex,nofollow">
   <link href="/assets/styles.css" rel="stylesheet">
   <script>
-    if(typeof Promise === 'undefined') {
+    // Add ployfills for stupid IE
+    if (document.documentMode || /Edge/.test(navigator.userAgent)) {
       (function(d, script) {
         script = d.createElement('script');
         script.type = 'text/javascript';