Hi, With JDK 11 (or with com.sun.webkit.useHTTP2Loader=false) WebView defaults to the old HTTP 1.1 and via HttpURLConnection [2] it has access to basic and digest authentication.
But since JDK 12+ (or with com.sun.webkit.useHTTP2Loader=true) WebView uses HTTP/2 and HttpClient [1], which doesn't provide any kind of built-in validation, as far as I know. As a quick test, adding: private final static HttpClient HTTP_CLIENT = AccessController.doPrivileged((PrivilegedAction<HttpClient>) () -> HttpClient.newBuilder() .version(Version.HTTP_2) // this is the default .followRedirects(Redirect.NEVER) // WebCore handles redirection .connectTimeout(Duration.ofSeconds(30)) // FIXME: Add a property to control the timeout .cookieHandler(CookieHandler.getDefault()) + .authenticator(Authenticator.getDefault()) .build()); helps with getting at least basic authentication from the user's code with: Authenticator.setDefault(new Authenticator() { @Override protected PasswordAuthentication getPasswordAuthentication() { return new PasswordAuthentication("$user", "$password".toCharArray()); } }); However, this doesn't work for digest authentication. A different (and probably better) approach would be adding headers to the HttpRequest [3] allowing any kind of authentication type: final var request = HttpRequest.newBuilder() .uri(uri) .headers(getRequestHeaders()) // headers from WebCore .headers(getCustomHeaders()) // headers set by us + .headers("Authorization", "$authenticationString") .version(Version.HTTP_2) // this is the default .method(method, getFormDataPublisher()) .build(); Note that none of the existing headers allow user customization, if I get it right. I understand that adding an API for this authorization header can be complex, but, without this (or any other alternative), how can WebView and HTTP2 can be used to address authentication? Thanks for any input on this, Jose [1] https://github.com/openjdk/jfx11u/blob/master/modules/javafx.web/src/main/java/com/sun/webkit/network/HTTP2Loader.java#L105 [2] https://github.com/openjdk/jfx11u/blob/master/modules/javafx.web/src/main/java/com/sun/webkit/network/URLLoader.java#L406 [3] https://github.com/openjdk/jfx11u/blob/master/modules/javafx.web/src/main/java/com/sun/webkit/network/HTTP2Loader.java#L396 --