Method fire

src/main/java/org/htmlunit/javascript/host/WebSocket.java:517–529

(final Event evt)

    }

    void fire(final Event evt) {
        evt.setTarget(this);
        evt.setParentScope(getParentScope());
        evt.setPrototype(getPrototype(evt.getClass()));

        final AbstractJavaScriptEngine<?> engine = containingPage_.getWebClient().getJavaScriptEngine();
        if (engine != null) {
            engine.getContextFactory().call(cx -> {
                executeEventLocally(evt);
                return null;
            });
        }
    }

    void callFunction(final Function function, final Object[] args) {
        if (function == null) {