diff --git a/packages/webview_flutter/webview_flutter_web/example/lib/main.dart b/packages/webview_flutter/webview_flutter_web/example/lib/main.dart
index 9ce006031279..653220287196 100644
--- a/packages/webview_flutter/webview_flutter_web/example/lib/main.dart
+++ b/packages/webview_flutter/webview_flutter_web/example/lib/main.dart
@@ -24,7 +24,7 @@ class _WebViewExample extends StatefulWidget {
 
 class _WebViewExampleState extends State<_WebViewExample> {
   final PlatformWebViewController _controller = PlatformWebViewController(
-    const PlatformWebViewControllerCreationParams(),
+    WebWebViewControllerCreationParams(iFrameCredentialless: true),
   )..loadRequest(
       LoadRequestParams(
         uri: Uri.parse('https://flutter.dev'),
diff --git a/packages/webview_flutter/webview_flutter_web/lib/src/web_webview_controller.dart b/packages/webview_flutter/webview_flutter_web/lib/src/web_webview_controller.dart
index 2d8297fb5fd5..15ffb27a8a70 100644
--- a/packages/webview_flutter/webview_flutter_web/lib/src/web_webview_controller.dart
+++ b/packages/webview_flutter/webview_flutter_web/lib/src/web_webview_controller.dart
@@ -18,10 +18,18 @@ import 'http_request_factory.dart';
 @immutable
 class WebWebViewControllerCreationParams
     extends PlatformWebViewControllerCreationParams {
-  /// Creates a new [AndroidWebViewControllerCreationParams] instance.
+  /// Creates a new [WebWebViewControllerCreationParams] instance.
   WebWebViewControllerCreationParams({
     @visibleForTesting this.httpRequestFactory = const HttpRequestFactory(),
-  }) : super();
+    bool iFrameCredentialless = false,
+  })  : iFrame = web.HTMLIFrameElement()
+          ..id = 'webView${_nextIFrameId++}'
+          ..style.width = '100%'
+          ..style.height = '100%'
+          ..style.border = 'none'
+          ..setAttribute(
+              'credentialless', iFrameCredentialless ? 'true' : 'false'),
+        super();
 
   /// Creates a [WebWebViewControllerCreationParams] instance based on [PlatformWebViewControllerCreationParams].
   WebWebViewControllerCreationParams.fromPlatformWebViewControllerCreationParams(
@@ -30,7 +38,8 @@ class WebWebViewControllerCreationParams
     PlatformWebViewControllerCreationParams params, {
     @visibleForTesting
     HttpRequestFactory httpRequestFactory = const HttpRequestFactory(),
-  }) : this(httpRequestFactory: httpRequestFactory);
+    bool iFrameCredentialless = false,
+  }) : this(httpRequestFactory: httpRequestFactory, iFrameCredentialless: iFrameCredentialless);
 
   static int _nextIFrameId = 0;
 
@@ -39,11 +48,7 @@ class WebWebViewControllerCreationParams
 
   /// The underlying element used as the WebView.
   @visibleForTesting
-  final web.HTMLIFrameElement iFrame = web.HTMLIFrameElement()
-    ..id = 'webView${_nextIFrameId++}'
-    ..style.width = '100%'
-    ..style.height = '100%'
-    ..style.border = 'none';
+  final web.HTMLIFrameElement iFrame;
 }
 
 /// An implementation of [PlatformWebViewController] using Flutter for Web API.