Merge branch 'master' into iframe-remove-child-nodes

packages/rrweb/test/integration.test.ts

@@ -564,7 +564,22 @@ describe('record integration tests', function (this: ISuite) {
       // append an iframe to shadow dom #1
       div.appendChild(iframe);
     });
-    await waitForRAF(page);
+
+    await waitForRAF(page); // wait till browser loaded contents of frame
+
+    page.evaluate(() => {
+      const iframe: HTMLIFrameElement = document
+        .querySelector('iframe')!
+        .contentDocument!.body.shadowRoot!.querySelector('iframe')!;
+
+      const contentDocument2 = iframe.contentDocument!;
+      // create shadow dom #2 in the iframe
+      contentDocument2.body.attachShadow({ mode: 'open' });
+      contentDocument2.body.shadowRoot!.appendChild(
+        document.createElement('span'),
+      );
+    });
+    await waitForRAF(page); // wait till browser sent snapshots
 
     const snapshots = await page.evaluate('window.snapshots');
     assertSnapshot(snapshots);