CSS not loading into header when not logged in

I have a site that’s doing this too. But I don’t think it’s a bug that happens on all sites. I’m pretty sure I have this running successfully on several other sites. The one site it’s not working on, though, is on an IP address in a subdirectory. I wonder if that is the cause.

I’m wrong. This thing is messed up. This code really does only include the styles when the user is logged in:

function include_css() {

		if( current_user_can( 'manage_options') ):
			echo '<style id="simpler-css-style" type="text/css">' . "\n";
			echo self::get_css();
			echo '</style><!-- end of custom css -->' . "\n";

		endif;

	}

Now I wonder if my other sites are screwed up and I didn’t test them as the public user.