message: Allowed for window scroll in measurements
diff: @@ -23,8 +23,9 @@ class SharedElement extends React.Component {
  var {unshare, name, data} = this.props;
  if (!unshare) {
  if (this.ref) {
  - var {top: y, left: x, width: w, height: h} = this.ref.getBoundingClientRect();
  - this.context.registerSharedElement(url, name, this.ref, {w, h, x, y}, data);
  + var {scrollY, scrollX} = window;
  + var {top, left, width: w, height: h} = this.ref.getBoundingClientRect();
  + this.context.registerSharedElement(url, name, this.ref, {w, h, x: left + scrollX, y: top + scrollY}, data);
  }
  } else {
  this.context.unregisterSharedElement(url, name);
  