title: Selenium with chromedriver gives different results based on "headless" argument
body: <p>I have been playing around with Selenium + Chromedriver and I noticed I get different results based on if headless is enabled or disabled. After some investigation I found out that "headless" does not include the <code>Accept-Language</code> header.</p>
  
  <p>Is there anyway to manually add this in the headers?</p>