I got 500 internal error, but token generated

[MitulShah1]

I am using Resources owner method , and i just pass username/password in login form and from background using guzzlehttp i pass client id and client secret,
Its generate access token i can see in db.

https://prnt.sc/rk15hy

But response coming 500 internal error,

i am using middleware to allow Cors.

here is my CorsMiddleware.php code,

`/**
* Handle an incoming request.
*
* @param \Illuminate\Http\Request $request
* @param \Closure $next
* @return mixed
/
public function handle($request, Closure $next)
{
$headers = [
'Access-Control-Allow-Origin' => '',
'Access-Control-Allow-Methods' => 'POST, GET, OPTIONS, PUT, DELETE',
'Access-Control-Allow-Credentials' => 'true',
'Access-Control-Max-Age' => '86400',
'Access-Control-Allow-Headers' => 'Content-Type, Authorization, X-Requested-With'
];

    if ($request->isMethod('OPTIONS'))
    {
        return response()->json('{"method":"OPTIONS"}', 200, $headers);
    }

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

    return $response;
}`

Now if i comment Cors middleware from bootstrap/app.php

$app->middleware([ App\Http\Middleware\CorsMiddleware::class ]);

its working fine, can you please tell me whats wrong i am doing ?