In an application I implemented an javascript chat with long polling. Since there is just one Ajax Request per domain allowed I wanted to move the poll request to a subdomain.

So I have two domains:

dev.site.com
poll.dev.site.com

In my config.yml I entered the following:

framework:
    session:
        domain: .dev.site.com
        cookie_domain: .dev.site.com

But Symfony does not keep me logged in if I try to poll on the sub-domain via Ajax.

Any idea on how to keep the session on the sub-domains? I'm using the FOSUserBundle

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