diff --git a/scripts/e2e/index.html b/scripts/e2e/index.html
index fe5971a76d..65b155dcec 100644
--- a/scripts/e2e/index.html
+++ b/scripts/e2e/index.html
@@ -26,6 +26,17 @@
       document.dir = 'ltr';
     }
 
+    window.domCount = function domCount(ele) {
+      if(!ele) {
+        return 0;
+      }
+      var count = 1;
+      for(var i = 0; i < ele.children.length; i++) {
+        count += domCount(ele.children[i]);
+      }
+      return count;
+    }
+
     if (location.href.indexOf('theme=dark') > -1) {
       var link = document.getElementById('ionicLink');
       link.setAttribute('href', link.getAttribute('href').replace('.css', '.dark.css'));