Hi, In the client side, I want to use "wss" to communicate with the server, when I change the "ws" to "wss", it reported a error: *java.lang.IllegalArgumentException: XNIO000100: 'https' URL scheme chosen but no SSL provider given* So I try to provide a ssl provider XnioSsl, but I found the io.undertow.websockets.client.WebSocketClient not support. in the code ,it invokes the method: HttpUpgrade.performUpgrade(worker, null, newUri, headers, new ChannelListener(handshake, newUri, bufferPool, ioFuture); *NOT* HttpUpgradeState(final XnioWorker worker,* final XnioSsl ssl*, final InetSocketAddress bindAddress, final URI uri, final Map<String, String> headers, final ChannelListener<? super T> openListener, final ChannelListener<? super BoundChannel> bindListener, final OptionMap optionMap, final HandshakeChecker handshakeChecker) I think it doesn't support wss yet for undertow now? is it right? or could you tell me how to do this? Thanks. Sincerely yours, Lynn