被CORS阻止：“访问控制允许来源”标题包含多个值“*，*”，

Question

public function handle(Request $request, Closure $next)
    {
        header('Access-Control-Allow-Origin : *');
        header('Access-Control-Allow-Methods: GET, POST, DELETE, PATCH, PUT' );
        header('Access-Control-Allow-Headers : Content-type, X-Auth-Token, Authorization, Origin');
        return $next($request);
    }

我试图通过angular以表单形式发布信息，但出现以下错误：

访问位于“”的XMLHttpRequesthttp://localhost:8000/api/register“起源”http://localhost:4200'已被CORS策略阻止：'Access Control Allow Origin'标头包含多个值'*，*'，但只允许一个值。登记组成部分ts:43 HttpErrorResponse

Answer 1

Laravel 8已经支持cors，所以您可能已经在那里定义了*值。

检查您的配置/cors。php文件，它可能是这样的：

return [

    /*
    |--------------------------------------------------------------------------
    | Cross-Origin Resource Sharing (CORS) Configuration
    |--------------------------------------------------------------------------
    |
    | Here you may configure your settings for cross-origin resource sharing
    | or "CORS". This determines what cross-origin operations may execute
    | in web browsers. You are free to adjust these settings as needed.
    |
    | To learn more: https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS
    |
    */

    'paths' => ['api/*', 'sanctum/csrf-cookie'],

    'allowed_methods' => ['*'],

    'allowed_origins' => ['*'],

    'allowed_origins_patterns' => [],

    'allowed_headers' => ['*'],

    'exposed_headers' => [],

    'max_age' => 0,

    'supports_credentials' => false,

];

根据需要调整路径列表