title: Tracking the use of Ctrl + F by JavaScript?
body: <p>Is it possible to know what my users are searching for on my web pages by <kbd>Ctrl</kbd>+<kbd>F</kbd> in JavaScript? So when a user uses <kbd>Ctrl</kbd>+<kbd>F</kbd> to search for something, JavaScript can capture this action (and the search phrase) and send it back to the server.</p>
  
  <p>Possible? How?</p>