Facebook graph's url not returning the right link

Question

I am using a facebook share link in several spaces of my site, but with some images the post pushed on facebook wall's user doesn't display the image. The picture link is

http://mysite.org/files/campaign/image/originals/18/Sans%20titre-3.jpg

So I tried to input this link in facebook's debugger, and I get that link. The problem is that the corresponding open graph link is

http://graph.facebook.com/195459563930903 and the json which it's supporting is http://primagora.org/files/campaign/image/originals/18/Sans\u002520titre-3.jpg

Is it a facebook's cache issue ? (because I had to deal with the facebook's share name parameter that I had to escape, and the facebook's share wasn't working at all for this specific image whose name contained bad escaped white space)

Answer 1

Its mostly caused because image file is too big