Hi, I've just tested it and if you copy the code from the forum for some reason it doesn't work.
If you wish to
return to the home page at any time please click here
Try grabbing the code there from the HTML source and doing it from there
I've just tried it and if you grab the code from the HTML source here then it should produce the same error when you paste it into your demo site. I think this site may be changing the code slightly hence the bug not showing up.
Thanks