diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index c54858b..e1505f8 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -1165,7 +1165,7 @@ module ApplicationHelper
     end
   end
 
-  def context_menu(url)
+  def context_menu
     unless @context_menu_included
       content_for :header_tags do
         javascript_include_tag('context_menu') +
@@ -1178,7 +1178,7 @@ module ApplicationHelper
       end
       @context_menu_included = true
     end
-    javascript_tag "contextMenuInit('#{ url_for(url) }')"
+    nil
   end
 
   def calendar_for(field_id)
diff --git a/app/helpers/issues_helper.rb b/app/helpers/issues_helper.rb
index 08611c9..72f33da 100644
--- a/app/helpers/issues_helper.rb
+++ b/app/helpers/issues_helper.rb
@@ -90,7 +90,7 @@ module IssuesHelper
   end
 
   def render_descendants_tree(issue)
-    s = '<form><table class="list issues">'
+    s = '<table class="list issues">'
     issue_list(issue.descendants.visible.preload(:status, :priority, :tracker, :assigned_to).sort_by(&:lft)) do |child, level|
       css = "issue issue-#{child.id} hascontextmenu #{child.css_classes}"
       css << " idnt idnt-#{level}" if level > 0
@@ -102,7 +102,7 @@ module IssuesHelper
              content_tag('td', child.disabled_core_fields.include?('done_ratio') ? '' : progress_bar(child.done_ratio), :class=> 'done_ratio'),
              :class => css)
     end
-    s << '</table></form>'
+    s << '</table>'
     s.html_safe
   end
 
diff --git a/app/views/issues/_list.html.erb b/app/views/issues/_list.html.erb
index 2376a84..851fca1 100644
--- a/app/views/issues/_list.html.erb
+++ b/app/views/issues/_list.html.erb
@@ -1,4 +1,4 @@
-<%= form_tag({}) do -%>
+<%= form_tag({}, :data => {:cm_url => issues_context_menu_path}) do -%>
 <%= hidden_field_tag 'back_url', url_for(:params => request.query_parameters), :id => nil %>
 <div class="autoscroll">
 <table class="list issues <%= sort_css_classes %>">
diff --git a/app/views/issues/_list_simple.html.erb b/app/views/issues/_list_simple.html.erb
index 8ce273d..0d2850c 100644
--- a/app/views/issues/_list_simple.html.erb
+++ b/app/views/issues/_list_simple.html.erb
@@ -1,5 +1,5 @@
 <% if issues && issues.any? %>
-<%= form_tag({}) do %>
+<%= form_tag({}, :data => {:cm_url => issues_context_menu_path}) do %>
   <table class="list list-simple issues">
     <thead><tr>
     <th class="id">#</th>
diff --git a/app/views/issues/_relations.html.erb b/app/views/issues/_relations.html.erb
index dcf0795..cab1d0c 100644
--- a/app/views/issues/_relations.html.erb
+++ b/app/views/issues/_relations.html.erb
@@ -7,7 +7,7 @@
 <p><strong><%=l(:label_related_issues)%></strong></p>
 
 <% if @relations.present? %>
-<form>
+<%= form_tag({}, :data => {:cm_url => issues_context_menu_path}) do %>
 <table class="list issues">
 <% @relations.each do |relation| %>
   <% other_issue = relation.other_issue(@issue) -%>
@@ -30,7 +30,7 @@
   </tr>
 <% end %>
 </table>
-</form>
+<% end %>
 <% end %>
 
 <%= form_for @relation, {
diff --git a/app/views/issues/index.html.erb b/app/views/issues/index.html.erb
index d0fd943..a9f321c 100644
--- a/app/views/issues/index.html.erb
+++ b/app/views/issues/index.html.erb
@@ -69,4 +69,4 @@
                                 :title => l(:label_changes_details)) %>
 <% end %>
 
-<%= context_menu issues_context_menu_path %>
+<%= context_menu %>
diff --git a/app/views/issues/show.html.erb b/app/views/issues/show.html.erb
index f884905..b9e5111 100644
--- a/app/views/issues/show.html.erb
+++ b/app/views/issues/show.html.erb
@@ -96,7 +96,9 @@ end %>
   <%= link_to_new_subtask(@issue) if User.current.allowed_to?(:manage_subtasks, @project) %>
 </div>
 <p><strong><%=l(:label_subtask_plural)%></strong></p>
+<%= form_tag({}, :data => {:cm_url => issues_context_menu_path}) do %>
 <%= render_descendants_tree(@issue) unless @issue.leaf? %>
+<% end %>
 </div>
 <% end %>
 
@@ -157,4 +159,4 @@ end %>
     <%= auto_discovery_link_tag(:atom, {:format => 'atom', :key => User.current.rss_key}, :title => "#{@issue.project} - #{@issue.tracker} ##{@issue.id}: #{@issue.subject}") %>
 <% end %>
 
-<%= context_menu issues_context_menu_path %>
+<%= context_menu %>
diff --git a/app/views/my/page.html.erb b/app/views/my/page.html.erb
index a9a02be..d5b8e3e 100644
--- a/app/views/my/page.html.erb
+++ b/app/views/my/page.html.erb
@@ -16,6 +16,6 @@
   <%= render_blocks(@blocks['right'], @user) %>
 </div>
 
-<%= context_menu issues_context_menu_path %>
+<%= context_menu %>
 
 <% html_title(l(:label_my_page)) -%>
diff --git a/app/views/timelog/_list.html.erb b/app/views/timelog/_list.html.erb
index be02adb..3721df2 100644
--- a/app/views/timelog/_list.html.erb
+++ b/app/views/timelog/_list.html.erb
@@ -1,4 +1,4 @@
-<%= form_tag({}) do -%>
+<%= form_tag({}, :data => {:cm_url => time_entries_context_menu_path}) do -%>
 <%= hidden_field_tag 'back_url', url_for(:params => request.query_parameters), :id => nil %>
 <div class="autoscroll">
 <table class="list time-entries">
@@ -60,4 +60,4 @@
 </div>
 <% end -%>
 
-<%= context_menu time_entries_context_menu_path %>
+<%= context_menu %>
diff --git a/app/views/versions/index.html.erb b/app/views/versions/index.html.erb
index 0f1d0b8..ab61820 100644
--- a/app/views/versions/index.html.erb
+++ b/app/views/versions/index.html.erb
@@ -23,7 +23,7 @@
     <%= render(:partial => "wiki/content",
                :locals => {:content => version.wiki_page.content}) if version.wiki_page %>
     <% if (issues = @issues_by_version[version]) && issues.size > 0 %>
-      <%= form_tag({}) do -%>
+      <%= form_tag({}, :data => {:cm_url => issues_context_menu_path}) do -%>
         <table class="list related-issues">
         <caption><%= l(:label_related_issues) %></caption>
         <% issues.each do |issue| -%>
@@ -99,4 +99,4 @@
 
 <% html_title(l(:label_roadmap)) %>
 
-<%= context_menu issues_context_menu_path %>
+<%= context_menu %>
diff --git a/app/views/versions/show.html.erb b/app/views/versions/show.html.erb
index f018c2d..638a17a 100644
--- a/app/views/versions/show.html.erb
+++ b/app/views/versions/show.html.erb
@@ -36,7 +36,7 @@
 </div>
 
 <% if @issues.present? %>
-<%= form_tag({}) do -%>
+<%= form_tag({}, :data => {:cm_url => issues_context_menu_path}) do -%>
   <table class="list related-issues">
   <caption><%= l(:label_related_issues) %></caption>
   <%- @issues.each do |issue| -%>
@@ -47,7 +47,7 @@
   <% end %>
   </table>
 <% end %>
-<%= context_menu issues_context_menu_path %>
+<%= context_menu %>
 <% end %>
 </div>
 
diff --git a/public/javascripts/context_menu.js b/public/javascripts/context_menu.js
index ca2a9be..6fd509e 100644
--- a/public/javascripts/context_menu.js
+++ b/public/javascripts/context_menu.js
@@ -2,7 +2,6 @@
    Copyright (C) 2006-2016  Jean-Philippe Lang */
 
 var contextMenuObserving;
-var contextMenuUrl;
 
 function contextMenuRightClick(event) {
   var target = $(event.target);
@@ -98,13 +97,16 @@ function contextMenuShow(event) {
   var window_height;
   var max_width;
   var max_height;
+  var url;
 
   $('#context-menu').css('left', (render_x + 'px'));
   $('#context-menu').css('top', (render_y + 'px'));
   $('#context-menu').html('');
 
+  url = $(event.target).parents('form').first().data('cm-url');
+
   $.ajax({
-    url: contextMenuUrl,
+    url: url,
     data: $(event.target).parents('form').first().serialize(),
     success: function(data, textStatus, jqXHR) {
       $('#context-menu').html(data);
@@ -208,8 +210,7 @@ function contextMenuClearDocumentSelection() {
   }
 }
 
-function contextMenuInit(url) {
-  contextMenuUrl = url;
+function contextMenuInit() {
   contextMenuCreate();
   contextMenuUnselectAll();
   
@@ -243,5 +244,6 @@ function window_size() {
 }
 
 $(document).ready(function(){
+  contextMenuInit();
   $('input[type=checkbox].toggle-selection').on('change', toggleIssuesSelection);
 });
diff --git a/test/functional/versions_controller_test.rb b/test/functional/versions_controller_test.rb
index d794cf3..c2f054e 100644
--- a/test/functional/versions_controller_test.rb
+++ b/test/functional/versions_controller_test.rb
@@ -36,7 +36,7 @@ class VersionsControllerTest < Redmine::ControllerTest
     assert_select 'h3', :text => Version.find(1).name, :count => 0
 
     # Context menu on issues
-    assert_select "script", :text => Regexp.new(Regexp.escape("contextMenuInit('/issues/context_menu')"))
+    assert_select "form[data-cm-url=?]", '/issues/context_menu'
     assert_select "div#sidebar" do
       # Links to versions anchors
       assert_select 'a[href=?]', '#2.0'