前端请求thinkPHP接口报错。Respnse to preflight request doesn't pass access control check

前端请求thinkPHP接口报错。php 报错信息以下所示：前端   解决： 在ThinkPHP\Library\Think\Controller.class.php中加入blog                    header('Access-Control-Allow-Origin: http://localhost:8080');     // 前端访问地址接口             

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