hiding xataface URL

I'm setting up an online demo. I don't want the users to see the xataface query in the page URL. I can hide it by loading xataface in a frameset, but then anyone can get past that by just looking at the frameset source and then copy/paste that into the browser URL. To prevent this I normally stick a little js stuff in the header of the frame source to redirect back to the frame page.
I need to put my js redirect in the xataface header, but I don't know where that is. Would appreciate it much if you would advise where I find the headers. Thanks.
PS: maybe there's another way of accomplishing this?
I need to put my js redirect in the xataface header, but I don't know where that is. Would appreciate it much if you would advise where I find the headers. Thanks.
PS: maybe there's another way of accomplishing this?