How to add some known objects to ace editors syntax checker?

we're using the ACE editor to write javascript code that's interpreted on the server side. So the server has a JavaScript interface and can execute submitted code to accomplish some task from the outside.

The server implements some new objects that are not known by ACE. So ACE shows a warning, if one of this unknown objects is used in code.

What is the correct way to tell ACE, that there are some new objects, variables und functions? I already took a look into worker-javascript.js, but I DON'T want to reimplement this whole stuff (updating ACE would get harder than). Is there any interface I can use?

Ace uses jshint, which has an option to set a list of global variables:

(function configureAceWorker() {
    const worker = editor.session.$worker;
    if (!worker) {
        // Chris Janssen: You may need to set a timeout to delay the call
        // until the editor is done being setup by ace
        // or you will get an error due to the worker not existing yet.
        setTimeout(configureAceWorker, 500);
    } else {
        worker.call("changeOptions", [{
            // https://jshint.com/docs/options
            globals: { foo: false, bar: false }, // false = read-only
            undef: true, // enable warnings on undefined variables
        }]);
    }
})();