rkg has asked for the wisdom of the Perl Monks concerning the following question:

Hi -- Apologies in advance if this is an off-topic question.

I have mod_perl application that reads and writes cookie(s). When needed, my code reads a certain cookie and takes certain actions, or writes certain cookies after some actions.

While debugging, I started logging $ENV{HTTP_COOKIE}, just to watch every cookie my server could see on the client.

I was somewhat suprised to find, occasionally, cookies that I didn't set -- in particular, some Cold Fusion cookies like CFMAGIC. I know there is no Cold Fusion anywhere in my domain....

do browsers ever "leak" cookies?

Again, not a perl issue (I think), but confusing to me as I debug mod_perl....