[dvfjsdhgfv]

That's why I was wondering. Last time I checked headless Chrome could be pretty reliably detected in a number of ways, as you say. That they mention just one variable seems quite odd, given that they position themselves as specialists in the field.

[jardah]

The webdriver property is as far as we know the only one that stays different if you use non-headless chrome with puppeteer. Rest can be handled by use of non-headless chrome as mentioned in the article.

But you are right, after reading through it again, this section of the article should be improved.