I’m trying to create an action that clones a published page to a new draft page. Everything is working except the nonce verification. When I click on the link (a custom link that I placed alongside the edit | Quick Edit | Trash | View links that are located beneath each page listed on the page listings page) I get the message “The link you followed has expired. Please try again.”

add_filter('post_row_actions', 'update_page_listing_menu', 10, 2);
add_filter('page_row_actions', 'update_page_listing_menu', 10, 2);
function update_page_listing_menu($actions, WP_Post $post)
{
    $site_url = site_url();
    $base_url = $site_url .'/wp-admin/edit.php?post_type=page&post=' . $post->ID . '&action=clone-post_'. $post->ID;
    $complete_url = wp_nonce_url($base_url,'clone-post_'. $post->ID,'cp_nonce');

    $actions['clone-post'] = '<a href="'. $complete_url . '">Copy to Draft</a>';
    return $actions;
}

// If copy to draft is true in the query vars then copy the post
add_action('wp_loaded','check_for_clone_action');
function check_for_clone_action() {
    if ( strpos($_REQUEST['action'],'clone-post_' ) !== false )
        create_draft_post_from_published_post($_REQUEST['post']);
}

function create_draft_post_from_published_post($id)
{

    $nonce_verified = wp_verify_nonce($_REQUEST['cp_nonce'],'clone-post_'. $id);

    if ($nonce_verified) {
        $current_post = get_post( $id );

        $new_post_id = wp_insert_post( array(
            'post_title'   => $current_post->post_title,
            'post_content' => $current_post->post_content,
            'meta_input'   => array(
                'published_post_id' => $id
            ),
            'post_type'    => 'page'

        ), true );
    }

}