diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index d56d34ba..0fe538f8 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -247,12 +247,6 @@ class ApplicationController < ActionController::Base
 
     return if params[:format] == "xml" || params[:format] == "json"
 
-    cookies["forum_post_last_read_at"] = if @current_user.is_anonymous?
-                                           Time.now
-    else
-                                           @current_user.last_forum_topic_read_at || Time.at(0)
-    end.to_json
-
     if !@current_user.is_anonymous?
       cookies["user_id"] = @current_user.id.to_s
 
diff --git a/app/javascript/src/classes/menu.coffee b/app/javascript/src/classes/menu.coffee
index 3de5f73c..e7195f20 100644
--- a/app/javascript/src/classes/menu.coffee
+++ b/app/javascript/src/classes/menu.coffee
@@ -95,7 +95,7 @@ export default class Menu
 
     @forumMenuItems ?= JSON.parse(document.getElementById("forum-posts-latest").text)
 
-    last_read = JSON.parse(Cookies.get('forum_post_last_read_at'))
+    last_read = JSON.parse(document.getElementById('forum-post-last-read-at').text)
     forum_menu_items = @forumMenuItems
     forum_submenu = $('li.forum ul.submenu', @menu)
     forum_items_start = forum_submenu.find('.forum-items-start').show()
diff --git a/app/models/anonymous_user.rb b/app/models/anonymous_user.rb
index 514eecb4..dda70772 100644
--- a/app/models/anonymous_user.rb
+++ b/app/models/anonymous_user.rb
@@ -91,4 +91,8 @@ class AnonymousUser
   def blacklisted_tags_array
     CONFIG["default_blacklists"]
   end
+
+  def last_forum_topic_read_at
+    Time.now
+  end
 end
diff --git a/app/views/layouts/_menu.html.erb b/app/views/layouts/_menu.html.erb
index 7e3cdfb3..28060532 100644
--- a/app/views/layouts/_menu.html.erb
+++ b/app/views/layouts/_menu.html.erb
@@ -204,7 +204,10 @@
 </div>
 
 <script id="forum-posts-latest" type="application/json">
-  <%= Rails.cache.fetch "forum_posts_latest_v3" do
-    ForumPost.latest.map { |p| p.slice(:id, :pages, :title, :updated_at) }.to_json
-  end.html_safe %>
+  <%= Rails.cache.fetch "forum_posts_latest_v4" do
+    ForumPost.latest.map { |p| p.slice(:id, :pages, :title, :updated_at) }.to_json.html_safe
+  end %>
+</script>
+<script id="forum-post-last-read-at" type="application/json">
+  <%= (@current_user.last_forum_topic_read_at || Time.at(0)).to_json.html_safe %>
 </script>