你可以创建一个名为corsocket的中间件：

class corsHandler
{
    /**
     * Handle an incoming request.
     *
     * @param \Illuminate\Http\Request $request
     * @param \Closure(\Illuminate\Http\Request): (\Illuminate\Http\Response|\Illuminate\Http\RedirectResponse) $next
     * @return \Illuminate\Http\Response|\Illuminate\Http\RedirectResponse
     */
    public function handle(Request $request, Closure $next)
    {
        return $next($request)
            ->header('Access-Control-Allow-Origin', '*')
            ->header('Access-Control-Allow-Methods', 'GET, POST, PUT, PATCH, DELETE, OPTIONS')
            ->header('Access-Control-Allow-Headers', '*');

    }
}

字符串
在kernel.php中：

protected $middleware = [
...,
\App\Http\Middleware\corsHandler::class
]

型
以及：

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

型