Instalar Laravel-csp

Instalar usando composer

composer require spatie/laravel-csp
php artisan vendor:publish --tag=csp-config

Agregar en el app/Http/Kernel.php

protected $middlewareGroups = [
  'web' => [
      ...
      \Spatie\Csp\AddCspHeaders::class,
  ],

  'api' => [
      ...  
      \Spatie\Csp\AddCspHeaders::class,
   ],

Luego guardamos los cambios.