Selenium Out Of Memory Exception

Question

I'm getting the out of memory exception when i put my ChromeDriver to headless mode.I haven't noticed it happening while ChromeDriver is working normally but when i put it in "headless" mode I'm getting exception.

The program is multi threaded and it should take the screenshot of captcha and convert it into base64.I've tried locking the method so only 1 thread can access but it's still happening.

 lock (this)
        {
            string fileName = DateTime.Now.ToString("yyyy-MM-dd HH-mm-ss") + ".png";
            Byte[] byteArray = ((ITakesScreenshot)driver).GetScreenshot().AsByteArray;
            Bitmap screenshot = new Bitmap(new System.IO.MemoryStream(byteArray));
            Rectangle croppedImage = new Rectangle(element.Location.X, element.Location.Y, element.Size.Width, element.Size.Height);
            //EXCEPTION ON THE LINE BELOW
            screenshot = screenshot.Clone(croppedImage, screenshot.PixelFormat);
            screenshot.Save(String.Format(fileName, ImageFormat.Png));

            byte[] imageArray = System.IO.File.ReadAllBytes(fileName);
            string base64ImageRepresentation = Convert.ToBase64String(imageArray);
            base64 = base64ImageRepresentation;
            File.Delete(fileName);
        }

You don't dispose your resources properly. Particularly, `MemoryStream` and `Bitmap` classes are `IDisposable` and you need to dispose them by wrapping into `using ()` statements to optimize usage of memory. — Yeldar Kurmangaliyev, Jul 24 '19 at 20:21
There can be another reason of this behaviour though: https://stackoverflow.com/questions/4318563/c-sharp-out-of-memory-when-creating-bitmap. But you still need to dispose the resources properly. — Yeldar Kurmangaliyev, Jul 24 '19 at 20:23
Sure, here is the official docs: https://learn.microsoft.com/en-us/dotnet/standard/garbage-collection/using-objects — Yeldar Kurmangaliyev, Jul 24 '19 at 20:25
I've wrapped them both but i'm still getting out of memory exception — Marin Sozanj Sekovic, Jul 24 '19 at 20:40
Possible duplicate of https://stackoverflow.com/questions/199468/c-sharp-image-clone-out-of-memory-exception — , Jul 24 '19 at 21:11

Selenium Out Of Memory Exception

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