title: Is it possible to extract metadata from fetched url instead of canonical url?
body: <p>I have a Facebook like that links to a page on witch I don't have complete control: I can modify the <code>&lt;body&gt;</code> but not the <code>&lt;head&gt;</code> of the page...
  So I tried to set the link of the like button on a new page on which I have complete control, set the opengraph metatags on this page, and set an og:url that links to the original page.</p>
  
  <p>But in the end Facebook tries to extract metadata from the og:url and overrides the metatags of the previous page... 
  Is it possible to tell that I want to scrape metadata from the first fetched url and not from the og:url ?</p>