title: Sharing session across domain
body: <p>Currently we are facing a problem with sharing a same session across subdomains.  we are using  Jboss server.</p>
  
  <p>Users access the site corresponding to their locale say en_US that has unique domain name. A cookie is created corresponding to the domain. Users are allowed to go to other locales that have different domain name. The problem is that a new cookie is created for the other domain which loses the information stored in the previous session. We need to use the same session cookie across domains.</p>
  
  <p>Ex domains :
  sample.au
  sample.co.uk
  sample.us</p>
  
  <p>I asked to look into Iframe/p3p solutions.I am new to this concept. can you please guide me how to achieve this.</p>
  
  <p>Thanks  in advance</p>