saharusa on "[Plugin: WP Super Cache] Duplicate content"

Hi,

I have a duplicate content problem with the latest WP-Super-Cache v1.2
Wordpress Multisite 3.4.2 (Subdomain installation), and the latest Wordpress SEO Plugin.

My permalinks structure is: Custom: /%post_id%/

Without WP-Super-Cache everything seems to be correct, for example:
subdomain.domain.com/blogname/539 redirects automatically to
subdomain.domain.com/blogname/539/

With WP-Super-Cache both of the above url's are accessible.

I'm also using:
define('FORCE_SSL_LOGIN', true);
define('FORCE_SSL_ADMIN', true);

Any advise ?

http://wordpress.org/extend/plugins/wp-super-cache/