Well...
I just asked the question... To add more info to this:
I do have a session system installed and TRANSID compiled with PHP. But for some very sick reason it doesn't quite work like it should.
The transparent id works perfect when using a href, form action and so on but for that reason I don't understand it also runs the session handler for images that don't work.
Scenario:
User not accepting cookies visit the site.
He's given a session id and the page is refreshed with the id in get_vars.
On the page there is an fully transparent image and an image which hasn't got a target (broken image) another session is added for every time this occur.
This doesn't do much harm unless you want to know how many sessions are active... And since I do it's almost unusuable since a single user not accepting cookies easily'll "spam" up another 100 sessions... =(
So while waiting for a solution to that I was wondering if there were a simple way of denying cookies. I tried just checking in the handler is session-cookie was set and unless it was send the user to another page but sometimes user that do have cookies enabled are sent there too... Tough 🙁
Thanks,
/Thomas