identityserver4 "has been blocked by cors policy: request header field x-requested-with is not allowed by access-control-allow-headers in preflight response" code example
Example: Angular Laravel has been blocked by CORS policy: Request header field x-requested-with is not allowed by Access-Control-Allow-Headers in preflight response.
namespace App\Http\Middleware;
use Closure;
class Cors
{
public function handle($request, Closure $next)
{
$response = $next($request);
$response->header('Access-Control-Allow-Methods', 'HEAD, GET, POST, PUT, DELETE');
$response->header('Access-Control-Allow-Headers', $request->header('Access-Control-Request-Headers'));
$response->header('Access-Control-Allow-Origin', '*');
return $response;
}
}