So I'm wanting to integrate with a white label resource which has to be on a different website. We will be able to set up domains like broadband.avforums.com for this resource. I want to create an integration which is as seamless as possible. Which means serving our header and footer round the content. How hard is it to have cookies retained so logged-in users are still logged in when they visit this other site? And then serve the header and footer the same as it would be served to users & guests visiting normally? Is is possible?