Laravel Middleware：标题可能不包含多个标题，检测到新行

Question

Laravel的Authenticate中间件获取用户在未经过身份验证时应重定向到的路径，默认情况下会将用户重定向到/login。我想实现一个添加的功能，用一个消息重定向用户（例如XYZ分钟的会话时间到期或亲切登录继续）。所以我的Authenticate中间件看起来像这样：

namespace App\Http\Middleware;

use Illuminate\Auth\Middleware\Authenticate as Middleware;
use Illuminate\Http\Exceptions\HttpResponseException;

class Authenticate extends Middleware
{
    /**
     * Get the path the user should be redirected to when they are not authenticated.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return string
     */
    protected function redirectTo($request)
    {
        if($request->is('api/*'))
        {
            throw new HttpResponseException(response()->error(['failure_reason'=>'Fresh Access Token Required'], 'Unauthorized Request', 401));  
        }

        if (!$request->expectsJson()) {
            // return route('login');
            $request->headers->set('Accept', 'application/json');
            return redirect("/login")->with("message", "Exceeded an inactivity period of over 15 mins. Kindly re-login to continue");
        }

    }

}

有或没有$request->headers->set('Accept', 'application/json');，我不断收到此错误：标题可能不包含多个标题，检测到新行。关于如何解决这个问题的任何想法？

Answer 1

根据@ourmandave和[https://laracasts.com/discuss/channels/laravel/method-redirectto-with-a-flash-message][2]的建议，我了解到redirectTo（）想要返回重定向路由名称，而不是实际重定向。因此，您应该将“消息”闪烁到您的会话，然后返回重定向'/ login'。所以我编辑了我的代码，如下所示，它现在有效：

namespace App\Http\Middleware;

use Illuminate\Auth\Middleware\Authenticate as Middleware;
use Illuminate\Http\Exceptions\HttpResponseException;

class Authenticate extends Middleware
{
    /**
     * Get the path the user should be redirected to when they are not authenticated.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return string
     */
    protected function redirectTo($request)
    {
        if($request->is('api/*'))
        {
            throw new HttpResponseException(response()->error(['failure_reason'=>'Fresh Access Token Required'], 'Unauthorized Request', 401));  
        }

        if (!$request->expectsJson()) {
            session()->flash('message', 'Exceeded an inactivity period of over 15 mins. Kindly re-login to continue'); 
            return route('login');
        }

    }

}