BI-127107 fix: 【来源PT项目】bi6.0.7，ie11浏览器过滤组件无法使用

packages/fineui/src/core/utils/dom.js

@@ -1,9 +1,10 @@
 /**
  * 对DOM操作的通用函数
  */
-import { Widget } from "../4.widget"
+import { Widget } from "../4.widget";
 import { each, isEmpty, isNull, isNotNull } from "../2.base";
 import $ from "jquery";
+import { isIE } from "./../platform";
 
 export function ready(fn) {
     Widget._renderEngine.createElement(document).ready(fn);
@@ -751,7 +752,7 @@ export function getComboPosition(combo, popup, extraWidth, extraHeight, needAdap
  * 获取position:fixed相对定位的元素
  */
 export function getPositionRelativeContainingBlock(element) {
-    if (["html", "body", "#document"].indexOf((element.nodeName || "").toLowerCase()) >= 0) {
+    if (isIE() || ["html", "body", "#document"].indexOf((element.nodeName || "").toLowerCase()) >= 0) {
         // $FlowFixMe[incompatible-return]: assume body is always available
         return element.ownerDocument.body;
     }