Chrome DevTools Logging Features

Logging features using CDP.

While Selenium 4 provides direct access to the Chrome DevTools Protocol, these methods will eventually be removed when WebDriver BiDi implemented.

Console Logs

    ((HasLogEvents) driver).onLogEvent(consoleEvent(e -> messages.add(e.getMessages().get(0))));
    async with driver.bidi_connection() as session:
        async with Log(driver, session).add_listener(Console.ALL) as messages:
            using IJavaScriptEngine monitor = new JavaScriptEngine(driver);
            var messages = new List<string>();
            monitor.JavaScriptConsoleApiCalled += (_, e) =>
            {
                messages.Add(e.MessageContent);
            };
            await monitor.StartEventMonitoring();
    driver.on_log_event(:console) { |log| logs << log.args.first }

JavaScript Exceptions

    async with driver.bidi_connection() as session:
        async with Log(driver, session).add_js_error_listener() as messages:
            using IJavaScriptEngine monitor = new JavaScriptEngine(driver);
            var messages = new List<string>();
            monitor.JavaScriptExceptionThrown += (_, e) =>
            {
                messages.Add(e.Message);
            };
            await monitor.StartEventMonitoring();
    driver.on_log_event(:exception) { |exception| exceptions << exception }
Last modified July 10, 2024: Release 4.22 Updates (#1765) (fa7b1165ed0)