Share Cookies in rails 3.1.3

Hi all,

i am using Rails 3.1.3 and ruby 1.9.3.i need to set the cookies for
multiple domain,
Example: and are the two
different domain, i need to set the same cookie for the both domain. If
user login with can automatically login with

I have tried :
Rails.application.config.session_store :cookie_store, :key
‘_Admin_Kernel_session’, :domain=>:all
Rails.application.config.session_store :cookie_store, :key
‘_Admin_Kernel_session’, :domain=>""
cookies.permanent.signed[:new_cookie] = {:value =>
:domain => “”}
cookies[:some_cookie] = {:value => “whatever”, :domain =>
“”, :expires => 1.year.from_now.utc}

        i have tested with  middle-ware to set session domain but no


Please could any one tell me how to implement.


i got the error.Its working now. Its my mistake.