Default issue tracker name added to gon variables

app/controllers/application_controller.rb

@@ -5,6 +5,7 @@ class ApplicationController < ActionController::Base
   before_filter :add_abilities
   before_filter :dev_tools if Rails.env == 'development'
   before_filter :default_headers
+  before_filter :add_gon_variables
 
   protect_from_forgery
 
@@ -148,4 +149,8 @@ class ApplicationController < ActionController::Base
     headers['X-Frame-Options'] = 'DENY'
     headers['X-XSS-Protection'] = '1; mode=block'
   end
+
+  def add_gon_variables
+    gon.default_issues_tracker = Project.issues_tracker.default_value
+  end
 end