跨域问题，后端处理方法

$allowedOrigins = [
    'https://xxx.com',
    'http://localhost:63342'
];

$origin = isset($_SERVER['HTTP_ORIGIN']) ? $_SERVER['HTTP_ORIGIN'] : '';

if (in_array($origin, $allowedOrigins)) {
    header("Access-Control-Allow-Origin: $origin");
    header("Access-Control-Allow-Methods: GET, POST, PUT, DELETE, OPTIONS");
    header("Access-Control-Allow-Headers: Content-Type, Authorization");
}