Hi,
In the latest version of WordPress SEO plugin, I see Yoast uses a filter fb_meta_tags to change the open graph meta tags. It works nicely, except one thing: the default image set in the plugin settings page doesn't work, because Facebook will get only the thumbnail image.
I made a quick fix for this, and applied in one of my site, it's working. Here it is:
add_filter( 'fb_meta_tags', 'bc_fb_image' );
/**
* Add default image open graph meta when both Facebook & WordPress SEO plugins activated
*
* @param array $meta_tags
*
* @return array
*/
function bc_fb_image( $meta_tags )
{
if ( !empty( $meta_tags['http://ogp.me/ns#image'] ) )
return $meta_tags;
$wpseo_option = get_option( 'wpseo_social' );
if ( empty( $wpseo_option['og_default_image'] ) )
return $meta_tags;
$image = array( 'url' => $wpseo_option['og_default_image'] );
$meta_tags['http://ogp.me/ns#image'] = array( $image );
return $meta_tags;
}I hope Yoast can include this feature in the next version of the plugin, because I see the WordPress SEO has more options for OG image (featured image, first image in the content, and the default image) than the Facebook plugin.
