I have a website example.com with a “Support” button in the footer. The button is a link to example.com/help. On the server, that redirects to help.example.com (intercom). We’ve set that up following the custom domain instructions and this all works fine.
However, if the user is signed in on our site, I’d like to pass the information about the signed-in user to intercom. How can I do this WITHOUT loading any client JS on our site.
There should be a way to add a cookie server side on the help.example.com route that identifies the user but I don’t see any doc that explain how to do this.
Any help would be appreciated 
