title: keyup, keydown and keypress events not working on mobile
body: <p>I have been trying to get this to work but I don't know what's going on, the code I have:</p>
  
  <pre><code>$('#buscar-producto').on('keydown', function(e){
      console.log('hello');
      console.log(e.keyCode);
  });
  </code></pre>
  
  <p>It works on computers, but not on mobile..</p>
  
  <p><strong>EDIT:</strong>
  I need to get the keyCode when a key is pressed...</p>