I have a shopping cart I'm implementing (well known company and a solid platform) -- it's based in PHP/Smarty.
Works great if I put www.foosite.com/store/ into my browser.
If I put foosite.com/store/ into the browser it is not populating saved cookie variables correctly. Also, I noticed that it prompts me twice on my .htaccess/.htpasswd block.
So, what is it about www. versus without that can cause such a dramatic difference in the behavior of a site? And is there a way to fix it?