Is there something I'm doing wrong?
I have the same message again and again. Other browser (e.g. Safari) doesn't work too.
Edit: One failure I have found by myself it is the bracket in line 11 at the end. I have deleted the bracket but still the same
Edit2: OK, this seems really to be a WEB Page bug since I had this recently in another lesson too. I have deleted the code, refreshed the site and entered the code from the scratch. Now it works again..