title: Is it possible to detect if a user has opened a new tab?
body: <p>We are developing a quiz platform where we want to detect if the user opens a new tab during the quiz. The user is not allowed to open a new tab and we want to track this to notify the teacher managing the quiz. We are targeting the major browsers (IE, Chrome, Firefox, Safari).</p>
  
  <p>Is this possible? Thank you</p>