Edit File: getFixedPositionOffsetParent.js
import getStyleComputedProperty from './getStyleComputedProperty'; import isIE from './isIE'; /** * Finds the first parent of an element that has a transformed property defined * @method * @memberof Popper.Utils * @argument {Element} element * @returns {Element} first transformed parent or documentElement */ export default function getFixedPositionOffsetParent(element) { // This check is needed to avoid errors in case one of the elements isn't defined for any reason if (!element || !element.parentElement || isIE()) { return document.documentElement; } let el = element.parentElement; while (el && getStyleComputedProperty(el, 'transform') === 'none') { el = el.parentElement; } return el || document.documentElement; }
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