title: Can not send pusher events from laravel 5.7
body: <p>I'm trying since hours to use pusher in my laravel app. For this I was following some tutorials but it's still not working and now I'm a nervous wreck.</p>
  
  <p>Here's my code:</p>
  
  <p><strong>.env</strong></p>
  
  <pre><code>BROADCAST_DRIVER=pusher
  PUSHER_APP_ID=*ID
  PUSHER_APP_KEY=*KEY
  PUSHER_APP_SECRET=*SECRET
  PUSHER_APP_CLUSTER=eu
  </code></pre>
  
  <p><strong>TestEvent</strong></p>
  
  <pre><code>&lt;?php
  
  namespace App\Events;
  
  use App\Wish;
  use Illuminate\Broadcasting\Channel;
  use Illuminate\Queue\SerializesModels;
  use Illuminate\Broadcasting\PrivateChannel;
  use Illuminate\Broadcasting\PresenceChannel;
  use Illuminate\Foundation\Events\Dispatchable;
  use Illuminate\Broadcasting\InteractsWithSockets;
  use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
  
  class TestEvent implements ShouldBroadcast
  {
      use Dispatchable, InteractsWithSockets, SerializesModels;
  
      /**
       * Create a new event instance.
       *
       * @return void
       */
      public function __construct()
      {
      }
  
      /**
       * Get the channels the event should broadcast on.
       *
       * @return \Illuminate\Broadcasting\Channel|array
       */
      public function broadcastOn()
      {
          return new Channel('tests');
      }
  }
  </code></pre>
  
  <p><strong>web.php</strong></p>
  
  <pre><code>Route::get('/send-test', function(){
      event(new TestEvent());
      return ['message' =&gt; 'OK?'];
  });
  </code></pre>
  
  <p>What am I doing wrong? Thank you for the help.</p>