Fix race conditon

www/drive/main.js

@@ -16,11 +16,12 @@ define([
 
     var $ = window.jQuery;
     var saveAs = window.saveAs;
-    var $iframe = $('#pad-iframe').contents();
-    var ifrw = $('#pad-iframe')[0].contentWindow;
-
 
+    // Use `$(function () {});` to make sure the html is loaded before doing anything else
+    $(function () {
 
+    var $iframe = $('#pad-iframe').contents();
+    var ifrw = $('#pad-iframe')[0].contentWindow;
 
     Cryptpad.addLoadingScreen();
     var onConnectError = function (info) {
@@ -2032,5 +2033,5 @@ define([
         }
     });
 
-
+    });
 });

www/register/main.js

@@ -39,7 +39,6 @@ define([
         } else {
             $main.find('#userForm').removeClass('hidden');
         }
-    });
 
         // text and password input fields
         var $uname = $('#username');
@@ -139,3 +138,4 @@ define([
             });
         });
     });
+});