Hello, I am trying to apply ProxyConfiguration on the WebKit webview. I've tried HTTP and SOCKSv5 without authentication, and it proxies normally. However, after I set up username authenticate on the server side, then set username and password with applyCredential on the client side, it couldn't authenticate the connection. Logs on the server side show the client side says it doesn't support any authentication. So I have some questions about the authentication: Does the ProxyConfiguration support authentication now? Does applyCredential apply credentials on HTTP/HTTPS and SOCKSv5 proxy?