elementsFromPoint.js

let elementsFromPoint = function(x, y) {
  let items = [];
  let element;

  do {
    element = document.elementFromPoint(x, y);
    if (!element || element === (items[0] || {}).element) {
      break;
    }
    items.unshift({
      element,
      value: element.style.getPropertyValue('pointer-events'),
      priority: element.style.getPropertyPriority('pointer-events')
    });
    element.style.setProperty('pointer-events', 'none', 'important');
  } while (true);

  _.each(items, function(item) {
    item.element.style.setProperty(
      'pointer-events',
      item.value ? item.value : '', item.priority
    );
  });
  return _.map(items, 'element');
};