Facebook Like button og:image needs to be scraped to be displayed

I've got a Drupal website with articles on them which have Facebook like buttons.

Now I've got all the OpenGraph metatags added开发者_如何学Python on the pages and it's all working perfectly except for one thing.

Site visitors can share a page URL or like a page URL. When a new article is added and the first person who presses the like button will not see the image added in the og:image tag.

If another person afterwards presses the like button, the og:image however is visible so it seems to me Facebook needs to scrape the page first before the og:image is added in the 'Facebook Like window'.

The Facebook share doesn't seem to suffer from this problem and does it right from the first time.

Now whenever somebody adds a new article, I'd need the URL of the article to be scraped automatically by Facebook using some PHP code or some other fix...

Anyone who knows if autoscraping a URL is possible or does anyone have an idea for a workaround?

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You can use the graph API with scrape=true to force Facebook to scrape you right when you create your contents

https://developers.facebook.com/docs/beta/opengraph/objects/