// src/Dashboard/Http/Controllers/SendMessage.php
protected function getPusherBroadcaster(array $validated): PusherBroadcaster
{
+ $client = new \GuzzleHttp\Client(config('broadcasting.connections.pusher.client_options', []));
+
 $pusher = new Pusher(
 $validated['key'],
 $validated['secret'],
 $validated['appId'],
 config('broadcasting.connections.pusher.options', []),
+ $client 
 );
 return new PusherBroadcaster($pusher);
}