Can I use wss seveur for ngrok test ?

[Xam-Mlr]

Hi, i'm developing a chat in PHP, it works well but i've one issue: I have this code for ther server:

`<?php

require __DIR__.'/vendor/autoload.php';

use Ratchet\Server\IoServer;
use Ratchet\Http\HttpServer;
use Ratchet\WebSocket\WsServer;
use Ratchet\MessageComponentInterface;
use Ratchet\ConnectionInterface;


define('APP_PORT', 8889);


function addMessage($conversation_id, $user_id, $content){
    #   connect base de donnée   host      nom         charset        user     pass
    $bdd = new PDO('mysql:host=localhost:8889;dbname=Chat;charset=utf8', 'root', 'root');
    $bdd -> setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_WARNING); #pour avoir message d'erreur
    $request = $bdd->prepare('INSERT INTO messages (conversation_id, user_id, content, date) VALUES (?, ?, ?, NOW())'); #insere en table 
    $request->execute(array($conversation_id, $user_id, $content));
    $request->closeCursor();
    echo("message sent");
}


class ServerImpl implements MessageComponentInterface {
    protected $clients;

    public function __construct() {
        $this->clients = new \SplObjectStorage;
    }

    public function onOpen(ConnectionInterface $conn) {
        $this->clients->attach($conn);
        echo "New connection! ({$conn->resourceId}) [server]\n";
    }



    public function onMessage(ConnectionInterface $conn, $msg) {
        echo sprintf("New message from '%s': %s\n\n\n", $conn->resourceId, $msg);
        $conn->send("received");

        foreach ($this->clients as $client) { // BROADCAST
            $message = json_decode($msg, true);
            if ($conn !== $client) {
                $client->send("new message:".$msg);
            }
        }


        //try{
        $json = json_decode($msg);
        //addMessage($json->conversation, $json->user_id, $json->content);
    }





    public function onClose(ConnectionInterface $conn) {
        $this->clients->detach($conn);
        echo "Connection {$conn->resourceId} is gone.\n";
    }

    public function onError(ConnectionInterface $conn, \Exception $e) {
        echo "An error occured on connection {$conn->resourceId}: {$e->getMessage()}\n\n\n";
        $conn->close();
    }
}


$server = IoServer::factory(
    new HttpServer(
        new WsServer(
            new ServerImpl()
        )
    ),
    APP_PORT
);

/*$ws = new WsServer(new MyChat);
$server = IoServer::factory(new HttpServer($ws));*/



echo "Server created on port " . APP_PORT . "\n\n";
$server->run();

?>`

but i need a wss Server for safari, otherwise, safari block the connection to the ws server. How could i do that ? Thanks