diff --git a/web/documentserver-example/csharp-mvc/Views/Home/Editor.aspx b/web/documentserver-example/csharp-mvc/Views/Home/Editor.aspx
index f07a8270..4b0611a1 100644
--- a/web/documentserver-example/csharp-mvc/Views/Home/Editor.aspx
+++ b/web/documentserver-example/csharp-mvc/Views/Home/Editor.aspx
@@ -197,29 +197,29 @@
 
         <% string hist, histData; %>
         <% Model.GetHistory(out hist, out histData); %>
-        <% if (!string.IsNullOrEmpty(hist) && !string.IsNullOrEmpty(histData))
-        { %>
-        // the user is trying to show the document version history
-        config.events['onRequestHistory'] = function () {
-            docEditor.refreshHistory(<%= hist %>);  // show the document version history
-        };
-        // the user is trying to click the specific document version in the document version history
-        config.events['onRequestHistoryData'] = function (event) {
-            var ver = event.data;
-            var histData = <%= histData %>;
-            docEditor.setHistoryData(histData[ver - 1]);  // send the link to the document for viewing the version history
-        };
-        // the user is trying to go back to the document from viewing the document version history
-        config.events['onRequestHistoryClose '] = function () {
-            document.location.reload();
-        };
-        <% } %>
 
         <% string usersForMentions; %>
         <% Model.GetUsersMentions(Request, out usersForMentions); %>
         <% if (!string.IsNullOrEmpty(usersForMentions))
         // add mentions for not anonymous users
         { %>
+            <% if (!string.IsNullOrEmpty(hist) && !string.IsNullOrEmpty(histData))
+            { %>
+            // the user is trying to show the document version history
+            config.events['onRequestHistory'] = function () {
+                docEditor.refreshHistory(<%= hist %>);  // show the document version history
+            };
+            // the user is trying to click the specific document version in the document version history
+            config.events['onRequestHistoryData'] = function (event) {
+                var ver = event.data;
+                var histData = <%= histData %>;
+                docEditor.setHistoryData(histData[ver - 1]);  // send the link to the document for viewing the version history
+            };
+            // the user is trying to go back to the document from viewing the document version history
+            config.events['onRequestHistoryClose '] = function () {
+                document.location.reload();
+            };
+            <% } %>
         config.events['onRequestUsers'] = function () {
             docEditor.setUsers({  // set a list of users to mention in the comments
                 "users": <%= usersForMentions%>
diff --git a/web/documentserver-example/csharp/DocEditor.aspx b/web/documentserver-example/csharp/DocEditor.aspx
index 24e8bc5b..d34b0bca 100644
--- a/web/documentserver-example/csharp/DocEditor.aspx
+++ b/web/documentserver-example/csharp/DocEditor.aspx
@@ -207,23 +207,22 @@
             "onRequestMailMergeRecipients": onRequestMailMergeRecipients,
         };
 
-        <% if (!string.IsNullOrEmpty(History) && !string.IsNullOrEmpty(HistoryData))
-        { %>
-        config.events['onRequestHistory'] = function () {  // the user is trying to show the document version history
-            docEditor.refreshHistory(<%= History %>);  // show the document version history
-        };
-        config.events['onRequestHistoryData'] = function (event) {  // the user is trying to click the specific document version in the document version history
-            var ver = event.data;
-            var histData = <%= HistoryData %>;
-            docEditor.setHistoryData(histData[ver - 1]);  // send the link to the document for viewing the version history
-        };
-        config.events['onRequestHistoryClose '] = function () {  // the user is trying to go back to the document from viewing the document version history
-            document.location.reload();
-        };
-        <% } %>
-
         <% if (!string.IsNullOrEmpty(UsersForMentions))
         { %>
+            <% if (!string.IsNullOrEmpty(History) && !string.IsNullOrEmpty(HistoryData))
+            { %>
+            config.events['onRequestHistory'] = function () {  // the user is trying to show the document version history
+                docEditor.refreshHistory(<%= History %>);  // show the document version history
+            };
+            config.events['onRequestHistoryData'] = function (event) {  // the user is trying to click the specific document version in the document version history
+                var ver = event.data;
+                var histData = <%= HistoryData %>;
+                docEditor.setHistoryData(histData[ver - 1]);  // send the link to the document for viewing the version history
+            };
+            config.events['onRequestHistoryClose '] = function () {  // the user is trying to go back to the document from viewing the document version history
+                document.location.reload();
+            };
+            <% } %>
         // add mentions for not anonymous users
         config.events['onRequestUsers'] = function () {
             docEditor.setUsers({  // set a list of users to mention in the comments
diff --git a/web/documentserver-example/java-spring/src/main/resources/templates/editor.html b/web/documentserver-example/java-spring/src/main/resources/templates/editor.html
index 7a92b27c..702e6263 100755
--- a/web/documentserver-example/java-spring/src/main/resources/templates/editor.html
+++ b/web/documentserver-example/java-spring/src/main/resources/templates/editor.html
@@ -179,24 +179,23 @@
                 var historyData = histArray[1];
                 var usersForMentions = [[${usersForMentions}]];
 
-                if (hist && historyData) {
-                    // the user is trying to show the document version history
-                    config.events['onRequestHistory'] = function () {
-                        docEditor.refreshHistory(JSON.parse(hist));  // show the document version history
-                    };
-                    // the user is trying to click the specific document version in the document version history
-                    config.events['onRequestHistoryData'] = function (event) {
-                        var ver = event.data;
-                        var histData = historyData;
-                        docEditor.setHistoryData(JSON.parse(histData)[ver - 1]);  // send the link to the document for viewing the version history
-                    };
-                    // the user is trying to go back to the document from viewing the document version history
-                    config.events['onRequestHistoryClose'] = function () {
-                        document.location.reload();
-                    };
-                }
-
-                if(usersForMentions){
+                if(usersForMentions.length > 0){
+                    if (hist && historyData) {
+                        // the user is trying to show the document version history
+                        config.events['onRequestHistory'] = function () {
+                            docEditor.refreshHistory(JSON.parse(hist));  // show the document version history
+                        };
+                        // the user is trying to click the specific document version in the document version history
+                        config.events['onRequestHistoryData'] = function (event) {
+                            var ver = event.data;
+                            var histData = historyData;
+                            docEditor.setHistoryData(JSON.parse(histData)[ver - 1]);  // send the link to the document for viewing the version history
+                        };
+                        // the user is trying to go back to the document from viewing the document version history
+                        config.events['onRequestHistoryClose'] = function () {
+                            document.location.reload();
+                        };
+                    }
                     // add mentions for not anonymous users
                     config.events['onRequestUsers'] = function () {
                         docEditor.setUsers({  // set a list of users to mention in the comments
diff --git a/web/documentserver-example/java/src/main/webapp/editor.jsp b/web/documentserver-example/java/src/main/webapp/editor.jsp
index 61169af2..e625b42d 100644
--- a/web/documentserver-example/java/src/main/webapp/editor.jsp
+++ b/web/documentserver-example/java/src/main/webapp/editor.jsp
@@ -183,24 +183,23 @@
             String usersForMentions = (String) request.getAttribute("usersForMentions");
         %>
 
-        <% if (!history.isEmpty() && !historyData.isEmpty()) { %>
-            // the user is trying to show the document version history
-            config.events['onRequestHistory'] = function () {
-                docEditor.refreshHistory(<%= history %>);  // show the document version history
-            };
-            // the user is trying to click the specific document version in the document version history
-            config.events['onRequestHistoryData'] = function (event) {
-                var ver = event.data;
-                var histData = <%= historyData %>;
-                docEditor.setHistoryData(histData[ver - 1]);  // send the link to the document for viewing the version history
-            };
-            // the user is trying to go back to the document from viewing the document version history
-            config.events['onRequestHistoryClose'] = function () {
-                document.location.reload();
-            };
-        <% } %>
-
         <% if (usersForMentions != null) { %>
+            <% if (!history.isEmpty() && !historyData.isEmpty()) { %>
+                // the user is trying to show the document version history
+                config.events['onRequestHistory'] = function () {
+                    docEditor.refreshHistory(<%= history %>);  // show the document version history
+                };
+                // the user is trying to click the specific document version in the document version history
+                config.events['onRequestHistoryData'] = function (event) {
+                    var ver = event.data;
+                    var histData = <%= historyData %>;
+                    docEditor.setHistoryData(histData[ver - 1]);  // send the link to the document for viewing the version history
+                };
+                // the user is trying to go back to the document from viewing the document version history
+                config.events['onRequestHistoryClose'] = function () {
+                    document.location.reload();
+                };
+            <% } %>
             // add mentions for not anonymous users
             config.events['onRequestUsers'] = function () {
                 docEditor.setUsers({  // set a list of users to mention in the comments
diff --git a/web/documentserver-example/nodejs/views/editor.ejs b/web/documentserver-example/nodejs/views/editor.ejs
index 8fdc9f4a..f64de8e8 100644
--- a/web/documentserver-example/nodejs/views/editor.ejs
+++ b/web/documentserver-example/nodejs/views/editor.ejs
@@ -191,9 +191,6 @@
                     "onDocumentStateChange": onDocumentStateChange,
                     "onRequestEditRights": onRequestEditRights,
                     "onError": onError,
-                    "onRequestHistory":  onRequestHistory,
-                    "onRequestHistoryData": onRequestHistoryData,
-                    "onRequestHistoryClose": onRequestHistoryClose,
                     "onOutdatedVersion": onOutdatedVersion,
                     "onMakeActionLink": onMakeActionLink,
                     "onMetaChange": onMetaChange,
@@ -204,6 +201,9 @@
             };
 
         if (<%- JSON.stringify(usersForMentions) %> != null) {
+            config.events.onRequestHistory = onRequestHistory;
+            config.events.onRequestHistoryData = onRequestHistoryData;
+            config.events.onRequestHistoryClose = onRequestHistoryClose;
             config.events.onRequestUsers = onRequestUsers;
             config.events.onRequestSendNotify = onRequestSendNotify;
             config.events.onRequestRename = onRequestRename;
diff --git a/web/documentserver-example/php/doceditor.php b/web/documentserver-example/php/doceditor.php
index 585139eb..51373723 100755
--- a/web/documentserver-example/php/doceditor.php
+++ b/web/documentserver-example/php/doceditor.php
@@ -516,24 +516,24 @@
                 $history = $out[0];
                 $historyData = $out[1];
             ?>
-            <?php if ($history != null && $historyData != null): ?>
-            // the user is trying to show the document version history
-            config.events['onRequestHistory'] = function () {
-                docEditor.refreshHistory(<?php echo json_encode($history) ?>);  // show the document version history
-            };
-            // the user is trying to click the specific document version in the document version history
-            config.events['onRequestHistoryData'] = function (event) {
-                var ver = event.data;
-                var histData = <?php echo json_encode($historyData) ?>;
-                docEditor.setHistoryData(histData[ver - 1]);  // send the link to the document for viewing the version history
-            };
-            // the user is trying to go back to the document from viewing the document version history
-            config.events['onRequestHistoryClose'] = function () {
-                document.location.reload();
-            };
-            <?php endif; ?>
 
             <?php if ($usersForMentions != null): ?>
+                <?php if ($history != null && $historyData != null): ?>
+                // the user is trying to show the document version history
+                config.events['onRequestHistory'] = function () {
+                    docEditor.refreshHistory(<?php echo json_encode($history) ?>);  // show the document version history
+                };
+                // the user is trying to click the specific document version in the document version history
+                config.events['onRequestHistoryData'] = function (event) {
+                    var ver = event.data;
+                    var histData = <?php echo json_encode($historyData) ?>;
+                    docEditor.setHistoryData(histData[ver - 1]);  // send the link to the document for viewing the version history
+                };
+                // the user is trying to go back to the document from viewing the document version history
+                config.events['onRequestHistoryClose'] = function () {
+                    document.location.reload();
+                };
+                <?php endif; ?>
             // add mentions for not anonymous users
             config.events['onRequestUsers'] = function () {
                 docEditor.setUsers({  // set a list of users to mention in the comments
diff --git a/web/documentserver-example/python/templates/editor.html b/web/documentserver-example/python/templates/editor.html
index aa7569f2..5d0489bd 100644
--- a/web/documentserver-example/python/templates/editor.html
+++ b/web/documentserver-example/python/templates/editor.html
@@ -193,26 +193,28 @@
                 "onRequestMailMergeRecipients": onRequestMailMergeRecipients,
             };
 
-            {% if history and historyData %}
-
-                // the user is trying to show the document version history
-                config.events['onRequestHistory'] = function () {
-                    docEditor.refreshHistory({{ history | safe }});  // show the document version history
-                };
-                // the user is trying to click the specific document version in the document version history
-                config.events['onRequestHistoryData'] = function (event) {
-                    var ver = event.data;
-                    var histData = {{ historyData | safe }};
-                    docEditor.setHistoryData(histData[ver - 1]);  // send the link to the document for viewing the version history
-                };
-                // the user is trying to go back to the document from viewing the document version history
-                config.events['onRequestHistoryClose'] = function () {
-                    document.location.reload();
-                };
-
-            {% endif %}
+            
 
             {% if usersForMentions %}
+            
+                {% if history and historyData %}
+
+                    // the user is trying to show the document version history
+                    config.events['onRequestHistory'] = function () {
+                        docEditor.refreshHistory({{ history | safe }});  // show the document version history
+                    };
+                    // the user is trying to click the specific document version in the document version history
+                    config.events['onRequestHistoryData'] = function (event) {
+                        var ver = event.data;
+                        var histData = {{ historyData | safe }};
+                        docEditor.setHistoryData(histData[ver - 1]);  // send the link to the document for viewing the version history
+                    };
+                    // the user is trying to go back to the document from viewing the document version history
+                    config.events['onRequestHistoryClose'] = function () {
+                        document.location.reload();
+                    };
+
+                {% endif %}
 
                 // add mentions for not anonymous users
                 config.events['onRequestUsers'] = function () {
diff --git a/web/documentserver-example/ruby/app/views/home/editor.html.erb b/web/documentserver-example/ruby/app/views/home/editor.html.erb
index 5dea4dc4..6b97dc9b 100644
--- a/web/documentserver-example/ruby/app/views/home/editor.html.erb
+++ b/web/documentserver-example/ruby/app/views/home/editor.html.erb
@@ -171,27 +171,25 @@
 
         <%
             history = @file.get_history
-            if history %>
-            // the user is trying to show the document version history
-            config.events['onRequestHistory'] = function () {
-                docEditor.refreshHistory(<%= raw history[:hist].to_json %>);  // show the document version history
-            };
-            // the user is trying to click the specific document version in the document version history
-            config.events['onRequestHistoryData'] = function (event) {
-                var ver = event.data;
-                var histData = <%= raw history[:histData].to_json %>;
-                docEditor.setHistoryData(histData[ver - 1]);  // send the link to the document for viewing the version history
-            };
-            // the user is trying to go back to the document from viewing the document version history
-            config.events['onRequestHistoryClose'] = function () {
-                document.location.reload();
-            };
-            <% end
-        %>
-
-        <%
             usersMentions = @file.get_users_mentions
-            if usersMentions %>
+            
+            if usersMentions
+                if history %>
+                // the user is trying to show the document version history
+                config.events['onRequestHistory'] = function () {
+                    docEditor.refreshHistory(<%= raw history[:hist].to_json %>);  // show the document version history
+                };
+                // the user is trying to click the specific document version in the document version history
+                config.events['onRequestHistoryData'] = function (event) {
+                    var ver = event.data;
+                    var histData = <%= raw history[:histData].to_json %>;
+                    docEditor.setHistoryData(histData[ver - 1]);  // send the link to the document for viewing the version history
+                };
+                // the user is trying to go back to the document from viewing the document version history
+                config.events['onRequestHistoryClose'] = function () {
+                    document.location.reload();
+                };
+                <% end %>
             // add mentions for not anonymous users
             config.events['onRequestUsers'] = function () {
                 docEditor.setUsers({  // set a list of users to mention in the comments