diff --git a/packages/wujie-core/src/iframe.ts b/packages/wujie-core/src/iframe.ts
index b688c4e8a..fe446adcf 100644
--- a/packages/wujie-core/src/iframe.ts
+++ b/packages/wujie-core/src/iframe.ts
@@ -618,16 +618,31 @@ function initIframeDom(iframeWindow: Window, wujie: WuJie, mainHostPath: string,
  * 防止运行主应用的js代码，给子应用带来很多副作用
  */
 // TODO 更加准确抓取停止时机
-function stopIframeLoading(iframeWindow: Window, mainHostPath: string, appHostPath: string, appRoutePath: string) {
-  const sandbox = iframeWindow.__WUJIE;
+function stopIframeLoading(
+  iframeWindow: Window,
+  mainHostPath: string,
+  appHostPath: string,
+  appRoutePath: string,
+  sandbox: WuJie
+) {
+  const oldDoc = iframeWindow.document;
   sandbox.iframeReady = new Promise<void>((resolve) => {
     function loop() {
       setTimeout(() => {
-        // location ready
-        if (iframeWindow.location.href === "about:blank") {
+        let newDoc = null;
+        try {
+          newDoc = iframeWindow.document;
+        } catch (err) {
+          newDoc = null;
+        }
+        // wait for document ready
+        if (!newDoc || newDoc == oldDoc) {
           loop();
         } else {
           iframeWindow.stop ? iframeWindow.stop() : iframeWindow.document.execCommand("Stop");
+          if (!iframeWindow.__WUJIE) {
+            patchIframeVariable(iframeWindow, sandbox, appHostPath);
+          }
           initIframeDom(iframeWindow, sandbox, mainHostPath, appHostPath);
           /**
            * 如果有同步优先同步，非同步从url读取
@@ -775,6 +790,6 @@ export function iframeGenerator(
   const iframeWindow = iframe.contentWindow;
   // 变量需要提前注入，在入口函数通过变量防止死循环
   patchIframeVariable(iframeWindow, sandbox, appHostPath);
-  stopIframeLoading(iframeWindow, mainHostPath, appHostPath, appRoutePath);
+  stopIframeLoading(iframeWindow, mainHostPath, appHostPath, appRoutePath, sandbox);
   return iframe;
 }