can’t add an action to post_trackback hook!

  • Can anyone tell me why I can’t add an action to the post_trackback hook? NOTHING happens. I got a mail from someone stating my hardened-trackback plugin didn’t work. At first I didn’t believe the problem is in the plugin because I remember it to work earlier. Right now I’m totally baffled. I have a line saying:

    add_action(‘post_trackback’, ‘ht_check_key’);

    But the method is NOT called at all. I tried adding all kinds of priorities like:

    add_action(‘post_trackback’, ‘ht_check_key’, 1);

    or other values but there’s zero effect.

    I’m totally clueless here. Anyone?

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