How to force facebook to reload page cache?

Question

Facebook

I installed share buttons on the site using api.yandex.ru/share/.
I initialize with a script, set the link, title, image. Vkontakte and twitter work fine.
Facebook suggests sharing a 404 error because when I clicked share the first time, that page wasn't on the production site yet.
I tried meta og:image, I tried the facebook script itself (it stumbled with some kind of error, I can show if that).
I can't figure out how to get Facebook to display page data normally. Maybe it will go away?

Answer 1

https://developers.facebook.com/tools/debug/