调用未定义的方法 Symfony\Component\HttpFoundation\Response::header()

你好，我正在使用 cors 中间件，它似乎工作正常，直到我添加了 Laravel Passport，现在它出现了问题..它显示了错误

 Call to undefined method Symfony\Component\HttpFoundation\Response::header() on line number 36 

这是我的中间件：

<?php

namespace App\Http\Middleware;

use Closure;
use Illuminate\Support\Facades\Response;

class Cors
{

    /**
     * Handle an incoming request.
     *
     * @param \Illuminate\Http\Request $request
     * @param \Closure $next
     * @return mixed
     */
    public function handle($request, Closure $next)
    {

// ALLOW OPTIONS METHOD
        $headers = [
            'Access-Control-Allow-Origin' => '*',
            'Access-Control-Allow-Methods' => 'POST, GET, OPTIONS, PUT, DELETE',
            'Access-Control-Allow-Headers' => "Access-Control-Allow-Headers, Origin,Accept, X-Requested-With, Content-Type, Access-Control-Request-Method, Authorization , Access-Control-Request-Headers"
        ];


        if ($request->getMethod() == "OPTIONS") {
// The client-side application can set only headers allowed in Access-Control-Allow-Headers
            return Response::make('OK', 200, $headers);
        }

        $response = $next($request);
        foreach ($headers as $key => $value)
            $response->header($key, $value);
        return $response;
    }

}

问题是在 if 条件之后..任何帮助将不胜感激，谢谢

嗨，我遇到了同样的问题。看来这是 Passport 中的一个错误，并且有很多开发人员处于同样的情况。我刚刚找到了这个问题的解决方案。我们收到此错误的原因是因为我们进入了 Response 对象middleware通常是一个实例Illuminate\Http\Response我们可以使用该方法设置响应头的类header('Header-Key', 'Header-Value')而 Passport 处理的 Request 将是一个实例Symfony\Component\HttpFoundation\Response这就是我们收到错误的原因Call to undefined method Symfony\Component\HttpFoundation\Response::header()

下面是我用来解决此错误的代码，现在一切正常。我希望它可以帮助其他开发人员了解如何修复它，然后适应他们的代码。

$response = $next($request);
$IlluminateResponse = 'Illuminate\Http\Response';
$SymfonyResopnse = 'Symfony\Component\HttpFoundation\Response';
$headers = [
    'Access-Control-Allow-Origin' => '*',
    'Access-Control-Allow-Methods' => 'POST, GET, OPTIONS, PUT, PATCH, DELETE',
    'Access-Control-Allow-Headers' => 'Access-Control-Allow-Headers, Origin,Accept, X-Requested-With, Content-Type, Access-Control-Request-Method, Authorization , Access-Control-Request-Headers',
];

if($response instanceof $IlluminateResponse) {
    foreach ($headers as $key => $value) {
        $response->header($key, $value);
    }
    return $response;
}

if($response instanceof $SymfonyResopnse) {
    foreach ($headers as $key => $value) {
        $response->headers->set($key, $value);
    }
    return $response;
}

return $response;

而在我的Kernel.php

protected $middleware = [
    \App\Http\Middleware\Cors::class,
    // ....
];