Fix expander: forEach not supported by Office Webviewer

src/js/main.js

@@ -53,10 +53,11 @@ ready(function () {
         }
     };
 
+
     // Expander boxes
     var expandable = document.querySelectorAll('.expandable > .expander');
-    expandable.forEach(function (currentValue, index, arr) {
-        currentValue.onclick = function (e) {
+    for (var i = 0; i < expandable.length; i++) {
+        expandable[i].currentValue.onclick = function (e) {
             var parent = e.currentTarget.parentNode;
             if (parent.className.match(/(?:^|\s)expanded(?!\S)/)) {
                 parent.className = parent.className.replace(/(?:^|\s)expanded(?!\S)/g , '');
@@ -64,6 +65,6 @@ ready(function () {
                 parent.className += " expanded";
             }
             e.currentTarget.blur();
-        }
-    )};
+        };
+    }
 });