const CSS = `position:absolute;left:0;top:-100%;width:100%;height:100%;margin:1px 0 0;border:none;opacity:0;pointer-events:none;`;

export default (element, handler) => {
 const frame = document.createElement('iframe');
 const supportsPE = document.documentMode < 11 && 'pointerEvents' in frame.style;

 frame.style.cssText = `${CSS}${supportsPE ? '' : 'visibility:hidden;'}`;
 frame.onload = () => {
  frame.contentWindow.onresize = () => {
   handler(element);
  };
 };
 element.appendChild(frame);
 return frame;
};