diff -r fd209e3af0c7 -r 153f5d09a11a server/php/basic/public_html/static/lib/screenfull/screenfull-umd.js
--- a/server/php/basic/public_html/static/lib/screenfull/screenfull-umd.js	Wed Jan 11 15:11:52 2017 +0100
+++ b/server/php/basic/public_html/static/lib/screenfull/screenfull-umd.js	Thu Jan 12 14:09:02 2017 +0100
@@ -4,7 +4,7 @@
     define('screenfull', [], function () {
       return (root['screenfull'] = factory());
     });
-  } else if (typeof exports === 'object') {
+  } else if (typeof module === 'object' && module.exports) {
     // Node. Does not work with strict CommonJS, but
     // only CommonJS-like environments that support module.exports,
     // like Node.