Websocket handshake fails using a http proxy

[ht-sp]

First of all, thank you for your great work, the current version works very stable for me.

If i use a http proxy, the connection fails:

URI proxyUri = new URI("http", null, proxy.host, proxy.port, null, null, null);
WebOptionsBuilder webOptionsBuilder = Whatsapp.webBuilder()
                        .newConnection(UUID.fromString(session.uuid()))
                        .name(session.name())
                        .proxy(proxyUri)
                        .historyLength(WebHistoryLength.extended());

Presumably this is because the websocket handshake payload contains the wrong Host:
In WebSocketClient:

private CompletableFuture<Void> handshake(String path) {
    var payload = generateWebSocketUpgradePayload(path);
    return underlyingSocket.writeAsync(ByteBuffer.wrap(payload.getBytes()))
            .thenComposeAsync(writeResult -> readWebSocketUpgradeResponse())
            .thenComposeAsync(this::parseWebSocketUpgradeResponse);
}

The payload is:

GET /ws/chat HTTP/1.1
Host: proxy.host:1234
Connection: Upgrade
Upgrade: websocket
Sec-WebSocket-Version: 13
Sec-WebSocket-Key: DludGb/DusK1iE8OHJVNHw==

If i fix up the handshake payload during debugging:

payload = payload.replace("proxy.host:1234", "web.whatsapp.com")

The connection works as expected.

[Auties00]

Thanks for reporting, will be fixed in 0.0.8, eta next week