Facebook open Graph: Can a canonical URL point to a completely different domain?

Will facebook allow me to link to an unrelated domain in meta tags of an open graph?

For example, let's say a user, Bill, went to the following page on my site:

http://BillsEmployer.MySite.Com/ProductSuggestions

inside the section in html I have the following element

<meta property="og:url" 
      content="http://rads.stackoverflow.com/amzn/click/1590593898" /> 

Remember, I use only Amazon. My real implementation will not reference AMAZON. But he will link to a site on which I actually do not control.

If Facebook does not allow me to use a third-party site as a canonical URL, can I link to another domain that I control? In other words, I can indicate

http://CompanyA.MySite.com , http://CompanyB.MySite.Com , http://CompanyC.MySite.com all to the canonical URL at http://generic.MySite.com ?