Not caching homepage because of https?

Hi,

I recently installed WP Super Cache and it seems to be working well, although my homepage is quite heavy with posts and I would of loved it if it could be cached. Although, while testing, my timestamps differ or were not found, and I think it might have something to do with the fact that my website is running over https.

Any ideas?

Thanks!

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