Facebook Share doesn't pick up title / description meta tags that are changed after page load.

Question

Apparently Facebook Share doesn't pick up the title / description meta tags that are changed (via JavaScript) after the page load. It basically use the meta tags that are available upon load.

This is a simple example.

• The link will change the title / description meta tags upon click. You can confirm that using Firebug.
• Click the f|Share button: Facebook still always shows "A title that is available upon page load." and "A description that is available upon page load."

Anybody knows how to fix this?

Answer 1

Because the facebook server hits the URL you submit and looks for meta tags. It will always default to the original tags.

Answer 2

Its none of Facebook business. They just provide an api for it. And api takes meta tags as parameter. So you set your meta tags to facebook sharing.