Facebook sharing – thumbnail image

should i use a plugin? in that case which would you recommend?

i found the solution without installing another plugin- and i’m writing it here in case anyone else has this problem:

go to plugins-jetpack-edit- look for jetpack/functions.opengraph.php
and add this code to the php file:

/**
 * Adds default OpenGraph image.
 * Christoph Nahr 2014-02-28
 * @param array $tags Array of OpenGraph tags.
 * @return Specified array, possibly modified.
 */
function add_default_image( $tags ) {
 
    // replace blank Jetpack default image with site header
    if ( $tags['og:image'][0] == "http://wordpress.com/i/blank.jpg" ) {
        unset( $tags['og:image'][0] );
        $tags['og:image'][0] = 'http://www.tipulkarov.com/wp-content/uploads/2014/01/logo200x200.jpg';
    }
 
    // always remove useless HTTPS image tags
    unset( $tags['og:image:secure_url'] );
 
    return $tags;
}
add_filter( 'jetpack_open_graph_tags', 'add_default_image' );

replace the photo (http://www.tipulkarov.com/wp-content/uploads/2014/01/logo200x200.jpg) to your own of course.
must be at least 200x200px

credit: this solution was taken from this link: http://news.kynosarges.org/2014/02/17/default-opengraph-image-for-jetpack/

• This reply was modified 10 years, 4 months ago by graphico.