Laravel 7 Passport：被 CORS 策略阻止

Question

当我向我的 Laravel 7.3 Passport API 发出以下 axios 请求时：

let url = 'http://laravel.test/oauth/token'

let params = {
  client_id:  4,
  client_secret: 'FBkMiLI8ecdb4A8OhLRDGS1SasZP5NT7i9Qpp7bP',
  grant_type: 'password',
  username: 'me@home.com',
  password: '1qaz@WSX',
  scope: '*'
}

let headers = {
    'Access-Control-Allow-Origin': '*',
    'Access-Control-Allow-Methods': 'HEAD, GET, POST, PUT, PATCH, DELETE, OPTIONS',
    'Access-Control-Allow-Headers': 'Content-Type'
  }

axios.post(url, params, headers)
.then(response => {
      this.access_token = response['data']['access_token'];
      this.get_users_data()
  })
.catch(response => {
// eslint-disable-next-line
    console.log(response)
});

我在 javascript 控制台中收到此错误：

Access to XMLHttpRequest at 'http://laravel.test/oauth/token' from origin 'http://localhost:3000' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.

此外，Laravel 7.3 中的 config/cors.php 配置为允许任何内容（默认情况下）：

<?php

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/*'],

    'allowed_methods' => ['*'],

    'allowed_origins' => ['*'],

    'allowed_origins_patterns' => [],

    'allowed_headers' => ['*'],

    'exposed_headers' => [],

    'max_age' => 0,

    'supports_credentials' => false,

];

我的请求有什么问题？

Answer 1

您的请求没有问题。您的 API 资源有一个 CORS policy 限制哪些域可以访问该资源。您遇到的错误是告诉您资源没有 CORS header 允许从调用域访问。

您需要设置 CORS 策略以将您的域列入白名单：http://localhost:3000。您可能会发现这篇文章 Handling CORS in a Laravel Application 很有帮助：

Recently we released laravel-cors. This package can add the necessary CORS headers of your Laravel app.

Answer 2

这个解决方案在 AuthServiceProviders.php 文件中对我有用，但它在美学上不正确：添加 api 前缀，以便 config/cors 完成它的工作，不要不要忘记添加它 use Illuminate\Support\ Facades\Route;

<?php

namespace App\Providers;

use Illuminate\Foundation\Support\Providers\AuthServiceProvider as ServiceProvider;
use Illuminate\Support\Facades\Gate;
use Illuminate\Support\Facades\Route;
use Laravel\Passport\Passport;

class AuthServiceProvider extends ServiceProvider
{
    /**
     * The policy mappings for the application.
     *
     * @var array
     */
    protected $policies = [
        // 'App\Model' => 'App\Policies\ModelPolicy',
    ];

    /**
     * Register any authentication / authorization services.
     *
     * @return void
     */
    public function boot()
    {
        $this->registerPolicies();
        Route::prefix('api')->group(function () {
            Passport::routes();
        });
    }
}

Answer 3

我通过编辑配置 config/cors.php 并在这一行中将 'oauth/*' 添加到 paths 数组解决了这个问题：

'paths' => ['api/*', 'oauth/*'],

然后在终端运行php artisan cache:clear清算现金。

Note: config/cors.php file exists in modern version of Laravel (after 2020)

Laravel 7 Passport：被 CORS 策略阻止

Laravel 7 Passport : blocked by CORS policy

cors

axios

laravel-passport

laravel-7