Sadly, as it seems to be the comment I leave most these days, it doesn't work on mobile browsers. At least mobile Safari.

I understand that there are some interfaces that aren't meant for mobile. There are some that aren't meant for desktop. But at a minimum, you have to make some small effort to give a message to those visiting from unsupported platforms. It shows that you care.

If it doesn't seem like you care about the experience I'm having with your product then I have no motivation to go back and try it again.