Enabling "Preserve Log" in Chrome Developer Tools Console via Selenium

[PalakAShah]

Hello Chrome Community, I hope this message finds you well. I am currently working on a Selenium automation project where I am using ChromeDriver to interact with the Chrome browser. One specific requirement I have is to enable the "Preserve Log" option in the Chrome Developer Tools Console via Selenium.

So basically, I want that when I launch the driver, it automatically have Preserve Logs - console settings enabled.

I want to ensure that the entire test execution's console logs are captured and saved when the Chrome driver is launched. This means that even if I navigate to different pages during the test, the logs should not be cleared. At the end of the test, I should be able to access and review the complete set of logs for the entire test run.

I have tried various approaches, including using the AddUserProfilePreference method in ChromeOptions and executing JavaScript through IJavaScriptExecutor. Despite my attempts, I have not been successful in programmatically enabling "Preserve Log" in the Console tab. Here is a snippet of the code I am currently using:

​private static IWebDriver GetChromeDriver(string userAgent)
{
    var options = new ChromeOptions();
    //options.AddArgument("incognito");
    options.AddArguments("disable-infobars");
    // options.AddArguments("--headless");

    //Session 0 limit - 1024 x 768
    options.AddArguments("--window-size=1024,768");
    options.AddArguments("--window-position=0,0");
    options.AddArgument($"--user-agent= {userAgent}");
    options.SetLoggingPreference(LogType.Browser, LogLevel.All);

    //To disable PDF viewer plugins
    options.AddUserProfilePreference("plugins.always_open_pdf_externally", true);

    options.AddExtension(@"C:\Users\PalakS\Downloads\ezyZip - Copy.crx");

    // Disable download bubble and download bubble v2 using command-line switch - For Auto Download
    options.AddArgument("--disable-features=DownloadBubble");
    options.AddArgument("--disable-features=DownloadBubbleV2");

    
    options.AddArgument("--disable-backgrounding-occluded-windows");

  

    var driver = new ChromeDriver(Directory.GetCurrentDirectory(), options, TimeSpan.FromMinutes(3));

    var devToolsSession = driver.GetDevToolsSession();

    IDevTools devTools = driver as IDevTools;
    DevToolsSession session = devTools.GetDevToolsSession();

    // Enable the Page domain
    var enablePageCommandSettings1 = new OpenQA.Selenium.DevTools.V119.Page.EnableCommandSettings();
    session.SendCommand(enablePageCommandSettings1);

    // Enable the Console domain
    var enableConsoleCommand = new OpenQA.Selenium.DevTools.V119.Console.EnableCommandSettings();
    session.SendCommand(enableConsoleCommand);

    // Create the script to preserve console logs
    string script = "console.preserveLog();";

    // Inject the script into every new document
    session.SendCommand(new OpenQA.Selenium.DevTools.V119.Page.AddScriptToEvaluateOnNewDocumentCommandSettings()
    {
        Source = script
    });

    // Inject the script into every new document
    session.SendCommand(new OpenQA.Selenium.DevTools.V119.Page.AddScriptToEvaluateOnLoadCommandSettings()
    {
        ScriptSource = script
    });

    return driver;
}

Unfortunately, the above approaches haven't yielded the desired results, and the "Preserve Log" option in the Console tab remains unchecked. I would greatly appreciate any guidance, insights, or alternative approaches that the community might have in achieving this. If there's a specific preference, command-line argument, or technique that I might be overlooking, please let me know. Thank you in advance for your time and assistance! Environment Details:

Chrome Version: latest 119
Selenium Version: Selenium 4

[navSDET]

#same question

[w100frt]

Same here

[ObscurusMortuus]

https://peter.sh/experiments/chromium-command-line-switches/#net-log Find this stuff, maybe it will be helpful

[Lightning00Blade]

Note this repository is for the DevTools protocol types only. Please consult the README.md. Given that the question is out of scope of this repo, I will close the issue.

A possible solution to the issue could be to pass the same User directory each time via command line args --user-data-dir. Selenium Docs