diff --git a/public/js/config.js.example b/public/js/config.js.example
index 00c4f4984..c5de388f6 100644
--- a/public/js/config.js.example
+++ b/public/js/config.js.example
@@ -1,19 +1,11 @@
-//config
-var domain = ''; // domain name
-var urlpath = ''; // sub url path, like: www.example.com/<urlpath>
-//settings
-var debug = false;
-
-var GOOGLE_API_KEY = '';
-var GOOGLE_CLIENT_ID = '';
-
-var DROPBOX_APP_KEY = '';
-
 module.exports = {
-    domain: domain,
-    urlpath: urlpath,
-    debug: debug,
-    GOOGLE_API_KEY: GOOGLE_API_KEY,
-    GOOGLE_CLIENT_ID: GOOGLE_CLIENT_ID,
-    DROPBOX_APP_KEY: DROPBOX_APP_KEY
+    domain: '', // domain name
+    urlpath: '', // sub url path, like: www.example.com/<urlpath>
+
+    // settings
+    debug: false,
+
+    GOOGLE_API_KEY: '',
+    GOOGLE_CLIENT_ID: '',
+    DROPBOX_APP_KEY: ''
 };
diff --git a/public/js/cover.js b/public/js/cover.js
index 7156bf278..515c8827f 100644
--- a/public/js/cover.js
+++ b/public/js/cover.js
@@ -3,6 +3,8 @@ var checkIfAuth = common.checkIfAuth;
 var urlpath = common.urlpath;
 var serverurl = common.serverurl;
 var resetCheckAuth = common.resetCheckAuth;
+var getLoginState = common.getLoginState;
+var clearLoginState = common.clearLoginState;
 
 var historyModule = require('./history');
 var parseStorageToHistory = historyModule.parseStorageToHistory;
@@ -11,6 +13,10 @@ var getStorageHistory = historyModule.getStorageHistory;
 var getHistory = historyModule.getHistory;
 var saveHistory = historyModule.saveHistory;
 var removeHistory = historyModule.removeHistory;
+var postHistoryToServer = historyModule.postHistoryToServer;
+var deleteServerHistory = historyModule.deleteServerHistory;
+var parseServerToHistory = historyModule.parseServerToHistory;
+var saveStorageHistoryToServer = historyModule.saveStorageHistoryToServer;
 
 var saveAs = require('file-saver').saveAs;
 var List = require('list.js');
@@ -196,7 +202,7 @@ function parseHistoryCallback(list, notehistory) {
                         $this.addClass('active');
                     else
                         $this.removeClass('active');
-                } 
+                }
             });
         }, function () {
             getHistory(function (notehistory) {
diff --git a/public/js/extra.js b/public/js/extra.js
index 25f0b3b14..9ce8525ac 100644
--- a/public/js/extra.js
+++ b/public/js/extra.js
@@ -1086,5 +1086,7 @@ module.exports = {
   generateToc: generateToc,
   smoothHashScroll: smoothHashScroll,
   scrollToHash: scrollToHash,
-  owner: owner
+  owner: owner,
+  updateLastChangeUser: updateLastChangeUser,
+  updateOwner: updateOwner
 };
diff --git a/public/js/history.js b/public/js/history.js
index 91f3cccf2..d5082dd9c 100644
--- a/public/js/history.js
+++ b/public/js/history.js
@@ -4,6 +4,7 @@ var common = require('./common');
 var checkIfAuth = common.checkIfAuth;
 var urlpath = common.urlpath;
 var serverurl = common.serverurl;
+var getLoginState = common.getLoginState;
 
 var extra = require('./extra');
 var renderFilename = extra.renderFilename;
@@ -414,5 +415,7 @@ module.exports = {
     removeHistory: removeHistory,
     parseStorageToHistory: parseStorageToHistory,
     postHistoryToServer: postHistoryToServer,
-    deleteServerHistory: deleteServerHistory
+    deleteServerHistory: deleteServerHistory,
+    parseServerToHistory: parseServerToHistory,
+    saveStorageHistoryToServer: saveStorageHistoryToServer
 }
diff --git a/public/js/index.js b/public/js/index.js
index 67499f86c..f3bdf1158 100644
--- a/public/js/index.js
+++ b/public/js/index.js
@@ -63,9 +63,12 @@ var renderTitle = extra.renderTitle;
 var renderFilename = extra.renderFilename;
 var scrollToHash = extra.scrollToHash;
 var owner = extra.owner;
+var updateLastChangeUser = extra.updateLastChangeUser;
+var updateOwner = extra.updateOwner;
 
 var historyModule = require('./history');
 var writeHistory = historyModule.writeHistory;
+var deleteServerHistory = historyModule.deleteServerHistory;
 
 var renderer = require('./render');
 var preventXSS = renderer.preventXSS;
@@ -1461,6 +1464,7 @@ function onGoogleAPILoaded() {
         .prop('defer', true)
         .appendTo('body');
 }
+window.onGoogleAPILoaded = onGoogleAPILoaded;
 
 //button actions
 //share