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fix: prevent stack overflow in nested iframe scenarios #1683

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fix: prevent stack overflow in nested iframe scenarios #1683

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7b93031
Merge pull request #1673 from jd-opensource/feature_micro
raoenhui Jan 30, 2026
6563fd8
Merge pull request #1675 from jd-opensource/feature_micro
raoenhui Jan 30, 2026
677dd2f
fix: prevent stack overflow in nested iframe scenarios
Feb 28, 2026
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9 changes: 6 additions & 3 deletions src/source/patch.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -478,12 +478,15 @@ export function patchElementAndDocument(): void {
*/
function getElementQueryTarget(targetNode: Node): Node | null {
const currentAppName = getIframeCurrentAppName() || getCurrentAppName()
if ((targetNode === document.body || targetNode === document.head) && currentAppName) {
// 使用 rawDocument 避免触发被代理的 document.body/head getter，防止循环引用
const rawBody = globalEnv.rawDocument.body
const rawHead = globalEnv.rawDocument.head
if ((targetNode === rawBody || targetNode === rawHead) && currentAppName) {
const app = appInstanceMap.get(currentAppName)
if (app?.container) {
if (targetNode === document.body) {
if (targetNode === rawBody) {
return app.querySelector<HTMLElement>('micro-app-body')
} else if (targetNode === document.head) {
} else if (targetNode === rawHead) {
return app.querySelector<HTMLElement>('micro-app-head')
}
}
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