diff --git a/frb_example/pure_dart/test/api/pseudo_manual/dart_opaque_twin_rust_async_sse_test.dart b/frb_example/pure_dart/test/api/pseudo_manual/dart_opaque_twin_rust_async_sse_test.dart
index 57ae369c06..f9ee647fce 100644
--- a/frb_example/pure_dart/test/api/pseudo_manual/dart_opaque_twin_rust_async_sse_test.dart
+++ b/frb_example/pure_dart/test/api/pseudo_manual/dart_opaque_twin_rust_async_sse_test.dart
@@ -26,7 +26,7 @@ Future<void> main({bool skipRustLibInit = false}) async {
     var back2 =
         await loopBackTwinRustAsyncSse(opaque: back1) as String Function();
     expect(back2(), 'Test_String');
-    expect(identical(back2, f), isTrue);
+    if (!kIsWeb) expect(identical(back2, f), isTrue);
   });
 
   test('drop', () async {
diff --git a/frb_example/pure_dart/test/api/pseudo_manual/dart_opaque_twin_rust_async_test.dart b/frb_example/pure_dart/test/api/pseudo_manual/dart_opaque_twin_rust_async_test.dart
index f7cdcde85a..08ddfd7af1 100644
--- a/frb_example/pure_dart/test/api/pseudo_manual/dart_opaque_twin_rust_async_test.dart
+++ b/frb_example/pure_dart/test/api/pseudo_manual/dart_opaque_twin_rust_async_test.dart
@@ -25,7 +25,7 @@ Future<void> main({bool skipRustLibInit = false}) async {
     expect(back1(), 'Test_String');
     var back2 = await loopBackTwinRustAsync(opaque: back1) as String Function();
     expect(back2(), 'Test_String');
-    expect(identical(back2, f), isTrue);
+    if (!kIsWeb) expect(identical(back2, f), isTrue);
   });
 
   test('drop', () async {
diff --git a/frb_example/pure_dart/test/api/pseudo_manual/dart_opaque_twin_sse_test.dart b/frb_example/pure_dart/test/api/pseudo_manual/dart_opaque_twin_sse_test.dart
index 0cb72ca834..2828bb5f99 100644
--- a/frb_example/pure_dart/test/api/pseudo_manual/dart_opaque_twin_sse_test.dart
+++ b/frb_example/pure_dart/test/api/pseudo_manual/dart_opaque_twin_sse_test.dart
@@ -25,7 +25,7 @@ Future<void> main({bool skipRustLibInit = false}) async {
     expect(back1(), 'Test_String');
     var back2 = await loopBackTwinSse(opaque: back1) as String Function();
     expect(back2(), 'Test_String');
-    expect(identical(back2, f), isTrue);
+    if (!kIsWeb) expect(identical(back2, f), isTrue);
   });
 
   test('drop', () async {
diff --git a/frb_example/pure_dart/test/api/pseudo_manual/dart_opaque_twin_sync_sse_test.dart b/frb_example/pure_dart/test/api/pseudo_manual/dart_opaque_twin_sync_sse_test.dart
index 327d7a7464..19babc2d64 100644
--- a/frb_example/pure_dart/test/api/pseudo_manual/dart_opaque_twin_sync_sse_test.dart
+++ b/frb_example/pure_dart/test/api/pseudo_manual/dart_opaque_twin_sync_sse_test.dart
@@ -25,7 +25,7 @@ Future<void> main({bool skipRustLibInit = false}) async {
     expect(back1(), 'Test_String');
     var back2 = await loopBackTwinSyncSse(opaque: back1) as String Function();
     expect(back2(), 'Test_String');
-    expect(identical(back2, f), isTrue);
+    if (!kIsWeb) expect(identical(back2, f), isTrue);
   });
 
   test('drop', () async {
diff --git a/frb_example/pure_dart/test/api/pseudo_manual/dart_opaque_twin_sync_test.dart b/frb_example/pure_dart/test/api/pseudo_manual/dart_opaque_twin_sync_test.dart
index 717a81f88c..c555f79e03 100644
--- a/frb_example/pure_dart/test/api/pseudo_manual/dart_opaque_twin_sync_test.dart
+++ b/frb_example/pure_dart/test/api/pseudo_manual/dart_opaque_twin_sync_test.dart
@@ -25,7 +25,7 @@ Future<void> main({bool skipRustLibInit = false}) async {
     expect(back1(), 'Test_String');
     var back2 = await loopBackTwinSync(opaque: back1) as String Function();
     expect(back2(), 'Test_String');
-    expect(identical(back2, f), isTrue);
+    if (!kIsWeb) expect(identical(back2, f), isTrue);
   });
 
   test('drop', () async {
diff --git a/frb_example/pure_dart_pde/test/api/dart_opaque_test.dart b/frb_example/pure_dart_pde/test/api/dart_opaque_test.dart
index 09a07de7c8..3db2a6d2e4 100644
--- a/frb_example/pure_dart_pde/test/api/dart_opaque_test.dart
+++ b/frb_example/pure_dart_pde/test/api/dart_opaque_test.dart
@@ -23,7 +23,7 @@ Future<void> main({bool skipRustLibInit = false}) async {
     expect(back1(), 'Test_String');
     var back2 = await loopBackTwinNormal(opaque: back1) as String Function();
     expect(back2(), 'Test_String');
-    expect(identical(back2, f), isTrue);
+    if (!kIsWeb) expect(identical(back2, f), isTrue);
   });
 
   test('drop', () async {
diff --git a/frb_example/pure_dart_pde/test/api/pseudo_manual/dart_opaque_twin_rust_async_test.dart b/frb_example/pure_dart_pde/test/api/pseudo_manual/dart_opaque_twin_rust_async_test.dart
index 016fa07361..c0dd4dcda6 100644
--- a/frb_example/pure_dart_pde/test/api/pseudo_manual/dart_opaque_twin_rust_async_test.dart
+++ b/frb_example/pure_dart_pde/test/api/pseudo_manual/dart_opaque_twin_rust_async_test.dart
@@ -27,7 +27,7 @@ Future<void> main({bool skipRustLibInit = false}) async {
     expect(back1(), 'Test_String');
     var back2 = await loopBackTwinRustAsync(opaque: back1) as String Function();
     expect(back2(), 'Test_String');
-    expect(identical(back2, f), isTrue);
+    if (!kIsWeb) expect(identical(back2, f), isTrue);
   });
 
   test('drop', () async {
diff --git a/frb_example/pure_dart_pde/test/api/pseudo_manual/dart_opaque_twin_sync_test.dart b/frb_example/pure_dart_pde/test/api/pseudo_manual/dart_opaque_twin_sync_test.dart
index 5a4c767aa0..fb3cd4b177 100644
--- a/frb_example/pure_dart_pde/test/api/pseudo_manual/dart_opaque_twin_sync_test.dart
+++ b/frb_example/pure_dart_pde/test/api/pseudo_manual/dart_opaque_twin_sync_test.dart
@@ -27,7 +27,7 @@ Future<void> main({bool skipRustLibInit = false}) async {
     expect(back1(), 'Test_String');
     var back2 = await loopBackTwinSync(opaque: back1) as String Function();
     expect(back2(), 'Test_String');
-    expect(identical(back2, f), isTrue);
+    if (!kIsWeb) expect(identical(back2, f), isTrue);
   });
 
   test('drop', () async {