Code-Snippets-Functions/Execute a function on a child site/WordPress/defer-loading-comment-reply-js.txt

function my_defer_scripts($tag, $handle, $src) {
    if ('comment-reply' == $handle) return "<script type='text/javascript' defer src='$src'></script>";
   return $tag;
} 
add_filter('script_loader_tag', 'my_defer_scripts', 10, 3);