Graaljs: Cannot connect remotely on GraalVM debugger

[MythTitans]

I'm trying to connect remotely to a GraalVM debugger, but the connection always fails to establish (GraalVM 20.0.0 java 11, running on Ubuntu 19.10).

For the test, I'm running a Java application using GraalVM on my machine, with the following configuration for the engine :

Engine engine = Engine.newBuilder()
            .option("inspect", "9930")
            .option("inspect.Secure", "false")
            .build();
Context.Builder contextBuilder = Context.newBuilder().engine(engine);

I can connect on localhost, using the url provided in the logs :

Debugger listening on port 9930.
To start debugging, open the following URL in Chrome:
    chrome-devtools://devtools/bundled/js_app.html?ws=127.0.0.1:9930/4b4523f8-a5dcc9aabd2

but it doesn't work if I replace 127.0.0.1 by my real ip address.

Running the command sudo netstat -plnt show the following result :

tcp6       0      0 127.0.0.1:9930          :::*                    LISTEN      26280/java

showing that the debugger only listens on localhost, thus refusing external connections.

Is there an additional parameter to enable remote debugging ? Following this link https://www.graalvm.org/docs/tools/chrome-debugger, I tried to add the option .option("inspect.Remote", remoteConnect) as shown in the example, but the parameter is unknown.

[entlicher]

You need to make the inspector listen on that address. "inspect.Remote" option was abandoned, you should use .option("inspect", "10.10.10.10:9930") instead, where you replace "10.10.10.10" with your IP address.

[MythTitans]

Thanks a lot, it works now !

Sorry for the bother.