filter not work

Dear Sir/Madam,

The default og:title is the post/page’s title, I want to add the site name before the title by using below filter code

function modify_open_graph_data($data) {
  $data['og:title']['value'] = $data['og:site_name']['value'] . $data['og:title']['value'];
  return $data;
}
add_filter('complete_open_graph_all_data', 'modify_open_graph_data');

What’s wrong to my code?

Best regards,

Kelvin

• This topic was modified 5 years, 5 months ago by yckelvin.