Laravel Websocket works in Firefox, not in Edge - laravel

Question

I have installed a laravel application on a public webserver.
Apache has been configured with a Let's Encrypt certificate with certbot and the website is available in https.
Using the mydomain.it/laravel-websockets link I checked that everything is working.
Using firefox the socket connects, but using Edge it does not
I need to use websockets so I configured as follows:
bootstrap.js
import Echo from 'laravel-echo';
window.Pusher = require('pusher-js');
window.Echo = new Echo({
wsHost: window.location.hostname,
wsPort: 6000,
wssPort: 6001,
broadcaster: 'pusher',
key: process.env.MIX_PUSHER_APP_KEY,
cluster: process.env.MIX_PUSHER_APP_CLUSTER,
forceTLS: true,
encrypted: true,
enabledTransports: ['wss']
});
broadcasting.php
'connections' => [
'pusher' => [
'driver' => 'pusher',
'key' => env('PUSHER_APP_KEY'),
'secret' => env('PUSHER_APP_SECRET'),
'app_id' => env('PUSHER_APP_ID'),
'options' => [
'cluster' => env('PUSHER_APP_CLUSTER'),
'encrypted' => true,
'host' => 'mydomain.it',
'port' => 6001,
'scheme' => 'https',
'curl_options' => [
CURLOPT_SSL_VERIFYHOST => 0,
CURLOPT_SSL_VERIFYPEER => 0,
]
],
],
websockets.php
'apps' => [
[
'id' => env('PUSHER_APP_ID'),
'name' => env('APP_NAME'),
'key' => env('PUSHER_APP_KEY'),
'secret' => env('PUSHER_APP_SECRET'),
'path' => env('PUSHER_APP_PATH'),
'capacity' => null,
'enable_client_messages' => false,
'enable_statistics' => true,
'encrypted' => true,
'verify_peer' => false,
],
],
.env
PUSHER_APP_ID=123456
PUSHER_APP_KEY=myappkey
PUSHER_APP_SECRET=mysecret
PUSHER_APP_CLUSTER=mt1
LARAVEL_WEBSOCKETS_SSL_LOCAL_CERT=/etc/letsencrypt/live/mydomain.it/fullchain.pem
LARAVEL_WEBSOCKETS_SSL_LOCAL_PK=/etc/letsencrypt/live/mydomain.it/privkey.pem