處理跨域Options預檢請求

//處理跨域Options預檢請求
if($_SERVER['REQUEST_METHOD'] == 'OPTIONS'){
    //允許的源域名
    header("Access-Control-Allow-Origin: *");
    //允許的請求頭信息
    header("Access-Control-Allow-Headers: Origin, X-Requested-With, Content-Type, Accept, Authorization");
    //允許的請求類型
    header('Access-Control-Allow-Methods: GET, POST, PUT,DELETE,OPTIONS,PATCH');
    exit;
}