iframes, crossdomain and referrers

Hi all,

I'm facing the problem described in this post.

It's about crossdomain javascript. Every where I search for this, I keep reading that it's not possible to get the URL referrer cross side (also in that post).

But I still have the idea that it should be possible. Why? I'll try to explain. Our script is loaded into some webpage via an adserver. Somehow, the adserver is able to determine the referrer. I asked them how they do it, but offcourse, they don't to share their knowledge to us.

So, is it really not possible and does this adserver simply use some completly different technology? Or is there some workaround or anything else to get the problem solved?

I do not believe that client-side scripting can do that.

Remember that ad servers are running server-side scripts mixed with database interaction. Server-side scripting can get any referring information it needs.