Originally Posted by Ruben
Maybe then if it is your site you have a server issue.
Don't think so. As I said before, after running into this problem on our own server I tried it at several other sites as well and all with the same problem.

But because I'm unable to reproduce the problem now, I do think that the problem might have been caused locally. The only thing puzzling me is that I was able to reproduce it at the time on first notice from a user. So I'm not the only one to have experienced that problem.