Why would admin-ajax.php redirect to the home page for logged out users?
I am using the wp-polls plugin on my website. This plugin relies on using AJAX requests of the form http://www.myfakewebsiteurl.com/wp-admin/admin-ajax.php?action=polls&view=process&poll_id=2&poll_2=8&poll_2_nonce=420d75e659
When I log in, this request works fine: it pulls the poll results from the server, and then displays them on the desired web page.
However, when I log out, this request redirects me to the home page. Thus, instead of the poll results appearing, I get the home page loaded where the poll results are supposed to be.
Why would admin-ajax.php redirect visitors to my WordPress-powered site who are not logged in to the home page of my website?