title: How does Netflix prevent users from taking screenshots of chrome browser?
body: <p>I noticed that netflix employs a method of preventing users from recording or even taking still screenshot images of the video playback in their browser-based app.</p>
  <p>If you are watching a video on netflix (in my case Windows 10 and Chrome) the video will turn to a black screen if you begin to record or screenshot.</p>
  <p>What technology is at play here. Is there a windows/chrome API for telling content on the screen to hide if an attempted screenshotting is detected?</p>
  <p>Is it possible for a web developer to add this feature to their products?</p>