function setModernOffsets(node, offsets) {
	  if (!window.getSelection) {
	    return;
	  }

	  var selection = window.getSelection();
	  var length = node[getTextContentAccessor()].length;
	  var start = Math.min(offsets.start, length);
	  var end = offsets.end === undefined ? start : Math.min(offsets.end, length);

	  // IE 11 uses modern selection, but doesn't support the extend method.
	  // Flip backward selections, so we can set with a single range.
	  if (!selection.extend && start > end) {
	    var temp = end;
	    end = start;
	    start = temp;
	  }

	  var startMarker = getNodeForCharacterOffset(node, start);
	  var endMarker = getNodeForCharacterOffset(node, end);

	  if (startMarker && endMarker) {
	    var range = document.createRange();
	    range.setStart(startMarker.node, startMarker.offset);
	    selection.removeAllRanges();

	    if (start > end) {
	      selection.addRange(range);
	      selection.extend(endMarker.node, endMarker.offset);
	    } else {
	      range.setEnd(endMarker.node, endMarker.offset);
	      selection.addRange(range);
	    }
	  }
	}
In modern non-IE browsers, we can support both forward and backward
selections.

Note: IE10+ supports the Selection object, but it does not support
the `extend` method, which means that even in modern IE, it's not possible
to programmatically create a backward selection. Thus, for all IE
versions, we use the old IE API to create our selections.

@param {DOMElement|DOMTextNode} node
@param {object} offsets