CORS"；对飞行前请求的响应不'；t通过访问控制检查”；从PHP服务器发送带有400状态代码的响应时出错
我正在用香草PHP构建一个简单的后端。我创建了一个特殊的函数，它接受一个状态代码，设置所有必需的头并向客户端发送响应。如果状态代码以2开头，则响应将正常发送，但如果以4或5开头，则会发生以下错误CORS"；对飞行前请求的响应不'；t通过访问控制检查”；从PHP服务器发送带有400状态代码的响应时出错,php,Php,我正在用香草PHP构建一个简单的后端。我创建了一个特殊的函数，它接受一个状态代码，设置所有必需的头并向客户端发送响应。如果状态代码以2开头，则响应将正常发送，但如果以4或5开头，则会发生以下错误 Access to fetch at 'http://localhost/../../..' from origin 'http://localhost:3000' has been blocked by CORS policy: Response to preflight request doesn'
Access to fetch at 'http://localhost/../../..' from origin 'http://localhost:3000' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: It does not have HTTP ok status.
header("Content-Type: application/json");
header('Access-Control-Allow-Origin: *');
header('Access-Control-Allow-Methods: GET, POST, PATCH, PUT, DELETE, OPTIONS');
header('Access-Control-Allow-Headers: *');
header('Access-Control-Allow-Credentials', 'true');
http_response_code($statusCode);
die(json_encode($data));