diff --git a/ext/fg/js/frontend.js b/ext/fg/js/frontend.js
index 83e0cef1..5e12d101 100644
--- a/ext/fg/js/frontend.js
+++ b/ext/fg/js/frontend.js
@@ -40,9 +40,9 @@ class Frontend {
     static create() {
         const initializationData = window.frontendInitializationData;
         const isNested = (initializationData !== null && typeof initializationData === 'object');
-        const {id, parentFrameId, ignoreNodes} = isNested ? initializationData : {};
+        const {id, depth, parentFrameId, ignoreNodes} = isNested ? initializationData : {};
 
-        const popup = isNested ? new PopupProxy(id, parentFrameId) : PopupProxyHost.instance.createPopup(null);
+        const popup = isNested ? new PopupProxy(depth + 1, id, parentFrameId) : PopupProxyHost.instance.createPopup(null);
         const frontend = new Frontend(popup, ignoreNodes);
         frontend.prepare();
         return frontend;
diff --git a/ext/fg/js/popup-proxy.js b/ext/fg/js/popup-proxy.js
index f6295079..56e710eb 100644
--- a/ext/fg/js/popup-proxy.js
+++ b/ext/fg/js/popup-proxy.js
@@ -18,14 +18,14 @@
 
 
 class PopupProxy {
-    constructor(parentId, parentFrameId) {
+    constructor(depth, parentId, parentFrameId) {
         this.parentId = parentId;
         this.parentFrameId = parentFrameId;
         this.id = null;
         this.idPromise = null;
         this.parent = null;
         this.child = null;
-        this.depth = 0;
+        this.depth = depth;
 
         this.container = null;