I just tried something and found that it has something to do with base href tag. If I removed base href tag out, the problem went away.
So, I did a search on the web and found some people are saying there is a security issue in newer flash player version.
Now, my question is can I change the code in html_header.php where it write base href tag to something like this:
Instead of using HTTP_SERVER variable defined in configure.php, it uses PHP server variable HTTP_HOST.
PHP Code:
<base href="<?php echo (($request_type == 'SSL') ? 'https://' . $_SERVER[HTTP_HOST] . DIR_WS_HTTPS_CATALOG : 'http://' . $_SERVER[HTTP_HOST] . DIR_WS_CATALOG ); ?>" />
Will this effect any other parts of the shopping cart?
Thanks!