Want my blog to be embeddable in an iframe

Hi. I would like a certain page on my WP site to be embeddable on another site. It isn’t working, however.

I notice most pages on my site, when embedded in an iframe, will simply redirect to my site’s homepage (within the frame). It has a different page template that removes most of the header, <?php wp_head(); ?> included, just to ensure there’s no plugin script that’s doing it. I’m not sure why it’s still doing this.

Any idea what’s preventing the page from embedding properly?