Gravitar Fix

add_filter('get_avatar', function($avatar_html, $id_or_email, $size) {

  // Force width/height attributes to match the requested avatar size

  $size = intval($size) ?: 26;

  // Remove existing width/height to avoid duplicates

  $avatar_html = preg_replace('/\s(width|height)="\d+"/i', '', $avatar_html);

  // Add explicit width/height

  $avatar_html = preg_replace(

    '/<img([^>]+)>/',

    sprintf('<img$1 width="%1$d" height="%1$d">', $size),

    $avatar_html,

    1

  );

  return $avatar_html;

}, 10, 3);