Imposta l'URL sul tuo URL cloudfront in config/filesystems/s3
's3' => [
'driver' => 's3',
'key' => env('AWS_KEY'),
'secret' => env('AWS_SECRET'),
'region' => env('AWS_REGION'),
'bucket' => env('AWS_BUCKET'),
'url' => 'http://xxx.cloudfront.net']
Funziona in L5.5