Laravel处理CORS选项请求

php artisan make:middleware CorsMiddleware

<?php

namespace App\Http\Middleware;

use Closure;
use Illuminate\Http\Request;

class CorsMiddleware
{
    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Closure  $next
     * @return mixed
     */
    public function handle(Request $request, Closure $next)
    {
        return $next($request)
            ->header('Access-Control-Allow-Origin', '*')
            ->header('Access-Control-Allow-Methods', 'GET, POST, PUT, DELETE, OPTIONS')
            ->header('Access-Control-Allow-Headers', 'Content-Type, Authorization');
    }
}

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

protected $middleware = [
    // 其他中间件...
    \App\Http\Middleware\CorsMiddleware::class,
];

Route::middleware(['cors'])->group(function () {
    Route::get('/example', [ExampleController::class, 'index']);
    // 其他路由...
});