title: getBoundingClientRect() does not exist for safari on ipad. Workaround needed
body: <p>I just found out that getBoundingClientRect() is a great function and provides what i need (in order to calculate the line of my caret in a contenteditable div).
  Unfortunatly the function does not exist for safari on ipad.
  <strong>What can i do to get the data getBoundingClientRect() provides?</strong></p>