I did a small test today; I checked out the actual “img src” link of a picture in my facebook profile, and kept is saved. I deleted the picture from my profile and again checked the link I saved via the “img src”, and freakishly its still available.
I don’t know if this is temporal, maybe it takes time to update the cache (hmmm whats up with that too 😉 ). Anyways what does this mean ?? Frankly I don’t know, but whats up with data protection policies and the free will ?? !@#$%^&
@nuwanbando 
I think this is not a caching problem. Even if you try that img src url after one year I guess the image will still be there. As I know whatever you upload to Facebook belongs to Facebook. I think they have mentioned it in the privacy statement which no one cares to read including me :D.
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