diff --git a/www/common/toolbar.js b/www/common/toolbar.js
index c2a74e44c..a118dcf62 100644
--- a/www/common/toolbar.js
+++ b/www/common/toolbar.js
@@ -374,7 +374,7 @@ define([
         if (config.displayed.indexOf('useradmin') !== -1) {
             if (!config.userName || !config.userName.setName || !config.userName.lastName) {
                 throw new Error("You must provide a `userName` object containing `setName` (function) " +
-                                "and `lastName` (object) if you want to display the user admin menu.")
+                                "and `lastName` (object) if you want to display the user admin menu.");
             }
             var $displayedName = $('<span>', {'class': USERNAME_CLS});
             var accountName = Cryptpad.getStore().getLoginName ? Cryptpad.getStore().getLoginName() : null;
@@ -388,7 +388,7 @@ define([
             var $userName = $('<span>', {'class': 'userDisplayName'});
             if (readOnly !== 1) {
                 // Hide "Display name:" in read only mode
-                $userName.append(Messages.user_displayName + ': ')
+                $userName.append(Messages.user_displayName + ': ');
             }
             $userName.append($displayedName.clone());
             $userAdminContent.append($userName);
@@ -429,12 +429,12 @@ define([
             if (account) {
                 $button.append($('<span>', {'class': 'account-name'}).text('(' + accountName + ')'));
             }
-            var dropdownConfig = {
+            var dropdownConfigUser = {
                 text: $button.html(), // Button initial text
                 options: options, // Entries displayed in the menu
                 left: true, // Open to the left of the button
             };
-            var $userAdmin = Cryptpad.createDropdown(dropdownConfig);
+            var $userAdmin = Cryptpad.createDropdown(dropdownConfigUser);
             $userContainer.append($userAdmin);
 
             $userAdmin.find('a.logout').click(function (e) {
@@ -569,9 +569,9 @@ define([
                     return;
                 }
 
-                var e = jQuery.Event("keyup");
-                e.which = 13;
-                $titleElement.find('input').trigger(e);
+                var ev = $.Event("keyup");
+                ev.which = 13;
+                $titleElement.find('input').trigger(ev);
 
                 /*
                 $titleElement.find('input').hide();
diff --git a/www/pad/main.js b/www/pad/main.js
index df80cef19..3998ad915 100644
--- a/www/pad/main.js
+++ b/www/pad/main.js
@@ -495,8 +495,9 @@ define([
                 updateMetadata(shjson);
 
                 var newInner = JSON.parse(shjson);
+                var newSInner;
                 if (newInner.length > 2) {
-                    var newSInner = stringify(newInner[2]);
+                    newSInner = stringify(newInner[2]);
                 }
 
                 // build a dom from HJSON, diff, and patch the editor
@@ -535,7 +536,7 @@ define([
 
                 // Notify only when the content has changed, not when someone has joined/left
                 var oldSInner = stringify(JSON.parse(oldShjson)[2]);
-                if (newSInner !== oldSInner) {
+                if (newSInner && newSInner !== oldSInner) {
                     notify();
                 }
             };
diff --git a/www/poll/main.js b/www/poll/main.js
index 10a25e01d..49835a13a 100644
--- a/www/poll/main.js
+++ b/www/poll/main.js
@@ -192,6 +192,20 @@ define([
         }
     };
 
+    var unnotify = function () {
+        if (APP.tabNotification &&
+            typeof(APP.tabNotification.cancel) === 'function') {
+            APP.tabNotification.cancel();
+        }
+    };
+
+    var notify = function () {
+        if (Visible.isSupported() && !Visible.currently()) {
+            unnotify();
+            APP.tabNotification = Notify.tab(1000, 10);
+        }
+    };
+
     /*  Any time the realtime object changes, call this function */
     var change = function (o, n, path, throttle) {
         if (path && !Cryptpad.isArray(path)) {
@@ -402,20 +416,6 @@ define([
         });
     };
 
-    var unnotify = function () {
-        if (APP.tabNotification &&
-            typeof(APP.tabNotification.cancel) === 'function') {
-            APP.tabNotification.cancel();
-        }
-    };
-
-    var notify = function () {
-        if (Visible.isSupported() && !Visible.currently()) {
-            unnotify();
-            APP.tabNotification = Notify.tab(1000, 10);
-        }
-    };
-
     var userData = APP.userData = {}; // List of pretty names for all users (mapped with their ID)
     var userList; // List of users still connected to the channel (server IDs)
     var addToUserData = function(data) {
diff --git a/www/slide/main.js b/www/slide/main.js
index 4de77868e..e8ef4651b 100644
--- a/www/slide/main.js
+++ b/www/slide/main.js
@@ -766,7 +766,7 @@ define([
                 }
                 Slide.update(remoteDoc);
 
-                if (oldDoc !== newDoc) {
+                if (oldDoc !== remoteDoc) {
                     notify();
                 }
             };
diff --git a/www/slide/slide.js b/www/slide/slide.js
index 501415cad..5fc279d59 100644
--- a/www/slide/slide.js
+++ b/www/slide/slide.js
@@ -212,19 +212,19 @@ define([
             }, 1000);
         });
         $modal.find('#button_exit').click(function (e) {
-            var e = jQuery.Event("keyup");
-            e.which = 27;
-            $modal.trigger(e);
+            var ev = $.Event("keyup");
+            ev.which = 27;
+            $modal.trigger(ev);
         });
         $modal.find('#button_left').click(function (e) {
-            var e = jQuery.Event("keyup");
-            e.which = 37;
-            $modal.trigger(e);
+            var ev = $.Event("keyup");
+            ev.which = 37;
+            $modal.trigger(ev);
         });
         $modal.find('#button_right').click(function (e) {
-            var e = jQuery.Event("keyup");
-            e.which = 39;
-            $modal.trigger(e);
+            var ev = $.Event("keyup");
+            ev.which = 39;
+            $modal.trigger(ev);
         });
 
         $(ifrw).on('keyup', function (e) {