fix(BI-134501): 主线不找最外层body

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

@@ -794,13 +794,15 @@ export function getPositionRelativeContainingBlockRect(element) {
  */
 export function getOuterBody() {
     // 默认挂在body上的都找最外层的body
-    let parentWindow = window;
-    let body = document.body;
-    try {
-        while (parentWindow.parent !== parentWindow) {
-            parentWindow = parentWindow.parent;
-        }
-        body = parentWindow.document.body;
-    } catch (e) {}
-    return body;
+    // let parentWindow = window;
+    // let body = document.body;
+    // try {
+    //     while (parentWindow.parent !== parentWindow) {
+    //         parentWindow = parentWindow.parent;
+    //     }
+    //     body = parentWindow.document.body;
+    // } catch (e) {}
+    // return body;
+
+    return document.body;
 }