diff --git a/tests/web/deferred_fail_and_retry_test.dart b/tests/web/deferred_fail_and_retry_test.dart
index 5c62639502e..242457c5f35 100644
--- a/tests/web/deferred_fail_and_retry_test.dart
+++ b/tests/web/deferred_fail_and_retry_test.dart
@@ -15,7 +15,7 @@ main() {
   js.context.callMethod("eval", [
     """
     retryCount = 0;
-    if (self.document) {
+    if (self.document && self.document.body) {
       oldAppendChild = document.body.appendChild;
       replacement = function(element) {
         element.src = "non_existing.js";
diff --git a/tests/web_2/deferred_fail_and_retry_test.dart b/tests/web_2/deferred_fail_and_retry_test.dart
index c57c709054f..bd4ad7855d8 100644
--- a/tests/web_2/deferred_fail_and_retry_test.dart
+++ b/tests/web_2/deferred_fail_and_retry_test.dart
@@ -17,7 +17,7 @@ main() {
   js.context.callMethod("eval", [
     """
     retryCount = 0;
-    if (self.document) {
+    if (self.document && self.document.body) {
       oldAppendChild = document.body.appendChild;
       replacement = function(element) {
         element.src = "non_existing.js";