前端請求thinkPHP接口報錯。Respnse to preflight request doesn't pass access control check

前端請求thinkPHP接口報錯。php 報錯信息以下所示：前端   解決： 在ThinkPHP\Library\Think\Controller.class.php中加入blog                    header('Access-Control-Allow-Origin: http://localhost:8080');     // 前端訪問地址接口             

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