define(‘ALTERNATE_WP_CRON’, true);の時に発生
if(isset($_GET['doing_wp_cron'])){
    header('Location: '.get_current_url(false,array('doing_wp_cron')));
    exit;
}
public function get_current_url($remove_get_query = false,$exclude_keys = array())
{
    $suffix = $_SERVER['REQUEST_URI'];
    if($remove_get_query){
        $tmp = explode('?',$suffix);
        $suffix = array_shift($tmp);
    }else if(!empty($exclude_keys)){
        $tmp = explode('?',$suffix);
        $suffix = array_shift($tmp);
        $get = get_get_queries($exclude_keys);
        if(!empty($get))
            $suffix .= '?' . http_build_query($get);
    }
    return get_base_url($suffix);
}
public function get_get_queries($exclude_keys = array())
{
    $result = array();
    foreach ($_GET as $key => $value){
        if(!empty($exclude_keys) && in_array($key,$exclude_keys)){
            continue;
        }
        $result[$key] = $value;
    }
    return $result;
}
public function get_base_url($suffix = '')
{
    return (empty($_SERVER["HTTPS"]) ? "http://" : "https://") . $_SERVER["HTTP_HOST"] . $suffix;
}