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I have the same issue with my website: www.hoes.be 

Hi, It is worth remembering that a canonical just suggests to Google, which is the preferred page to index and serve. This helps stop duplication issues. What is doesn't do is place a block on a page and prevent anything else being crawled from there on in. You would need to add a nofollow and noindex for that to happen. If someone lands on a canonical page within the site, they can still browse around from there. Think of a canonical as a less drastic action than a 301. PR will flow via a canonical in the same way as a 301 as well, but doesn't just stop there. I hope this helps. -Andy