Why is the Open Graph Protocol not working?

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ruslan22017-09-17 22:30:30

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ruslan2, 2017-09-17 22:30:30

I'm trying to use the Open Graph Protocol ( http://ogp.me ), but I don't understand why it doesn't work.
I check other sites - it works, on mine it doesn't.
I don't understand what I'm doing wrong.
https://richpreview.com/?url=http://prcnt.co

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M

Moskus, 2017-09-17
@ruslan2

It is worth comparing, as on the "other sites" and yours.
view-source: prcnt.com
view-source: www.imdb.com/title/tt0117500

<html
xmlns:og="http://ogp.me/ns#">

Actually, apart from the namespace definition, I don't see any fundamental difference.