Facebook sharer and parameters in URL

I can see that you are rewritting to a specific page and I think that your problem is that WordPress inserts the canonial meta tag in the <head> of the HTML automatically for all core post types (post, pages, …). This meta tag will be pointing to the original page, because you are really in … Read more

Two WordPress sites sharing the same content

If your main requirement is to synchronise blog posts from a master site to a slave, then maybe look at the FeedWordPress plugin. It means that you would only add/edit posts on one website and they would be replicated to the other site. That will allow you to cleanly run different plugins on the two … Read more