I have a problem with how Facebook plugin shows my WordPress-based posts on my timeline. What basically happens is that the post image isn't shown.
Now, the post image I want to show is a custom field of a custom post type, and this is probably what's causing the problem to the Facebook plugin.
On the single-post page I added manually the
og: tags, and they're working properly (I see the image if I share the link on Facebook, and the Facebook object debugger shows it too, saying there are no problems).
Do have I to do something to add manually the requested
og: tags in post_publish hook?
A sample page is this: http://www.zannoni-store.it/prodotti/canestro-sonoro
And what I added in order to let the image be shown on share is this:
.. $img = get_post(get_post_meta($post->ID, 'immagine', true)); echo '<meta property="og:image" content="'.$img->guid.'" />'; ..