I'm new with selenium and I try to build a bot to do some logic on a specific website. I use C# .NET 4.6, Chrome v.108 and latest Selenium and chrome driver from Nuget. The flow itself can be less then a few seconds, and if it's failed, I want it to try again, until it will accomplish it.

Potentially, it can runs a lot of hours (or even a day or two) until it will success. However, after an hour or two, it start to throw A LOT exceptions, the most common is these three:

disconnected: Unable to receive message from renderer
  (failed to check if window was closed: disconnected: Unable to receive message from renderer)
  (Session info: headless chrome=108.0.5359.125)*

An unknown exception was encountered sending an HTTP request to the remote WebDriver server for URL ___localhostURL___ The exception message was: An error occurred while sending the request.

The HTTP request to the remote WebDriver server for URL ___localhostURL___ timed out after 60 seconds.

I tried to run my bot, both on my machine and on a docker as well, and I got the same errors after a while.

I search these errors over the net and tried some solutions (most of them was to add some arguments to the ChromeOptions) but actually they didn't help me so much and I still get these errors.

This is my code:

private void Func()
{
    var status = Status.Failed;
    ChromeDriver driver = null;

    var options = new ChromeOptions();
    options.AddArgument("--headless");
    options.AddArgument("--user-agent='Mozilla/5.0 (Windows Phone 10.0; Android 4.2.1; Microsoft; Lumia 640 XL LTE) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Mobile Safari/537.36 Edge/12.10166'");
    options.AddArgument("--no-sandbox");
    options.AddArgument("--disable-gpu");
    options.AddArgument("--disable-dev-shm-usage");
    driver = new ChromeDriver(path/to/chromedrive.exe, options);
    //driver = new RemoteWebDriver(new Uri(dockerUrl), options);

    do
    {
        try
        {
            driver.Navigate().GoToUrl(PageUrl);
            status = Func2(driver);
        }
        catch (Exception ex)
        {
            WriteException(ex);
        }
    } while (status == Status.Failed);

    driver?.Quit();
}

• User agent argument is because the specific website block headless browser and this is how I found how to bypass this block.
• All other arguments is a solutions I found to fix the problems above which didn't help so much.
• I know I can use driver.Navigate().Refresh(); instead of driver.Navigate().GoToUrl(PageUrl); every iteration, but with Refresh() it doesn't do what I want since it refresh the current page and not the main one.
• Both with RemoteWebDriver (will run the bot on a docker) and ChromeDriver I get the same errors.
• I tried without path to chromedriver.exe (actually I didn't know I need this one at all since it works the same without it as well) but with or without path to chromedriver.exe it still get these errors.
• These errors raise on the GoToUrl line

Any insights or tips what to change or what to check to fix my problems?
Thanks

CodePudding user response：

Apparently, it all was because Sleep-mode on my laptop.
When I change it to "Never" it seems like it fixed and run more then 24 hours without any issues.