Laravel 7-请求的资源上不存在'Access-Control-Allow-Origin‘标头

<?php

namespace App\Http\Middleware;

use Closure;

class CorsMiddleware
{
    public function handle($request, Closure $next)
    {
        $response = $next($request);
        
        $response->header('Access-Control-Allow-Origin', '*');
        $response->header('Access-Control-Allow-Methods', 'GET, POST, PUT, DELETE, OPTIONS');
        $response->header('Access-Control-Allow-Headers', 'Content-Type, Authorization');
        
        return $response;
    }
}

protected $routeMiddleware = [
    // ...
    'cors' => \App\Http\Middleware\CorsMiddleware::class,
];

Route::group(['middleware' => 'cors'], function () {
    // 路由定义
});