diff --git a/dev/benchmarks/complex_layout/pubspec.yaml b/dev/benchmarks/complex_layout/pubspec.yaml
index d201cc2..3fd3cc8 100644
--- a/dev/benchmarks/complex_layout/pubspec.yaml
+++ b/dev/benchmarks/complex_layout/pubspec.yaml
@@ -21,6 +21,7 @@
   collection: 1.16.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   crypto: 3.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   file: 6.1.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   matcher: 0.12.12 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   material_color_utilities: 0.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   meta: 1.8.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -53,7 +54,6 @@
   http_multi_server: 3.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   http_parser: 4.0.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   io: 1.0.3 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   logging: 1.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   mime: 1.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   node_preamble: 2.0.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
diff --git a/dev/benchmarks/multiple_flutters/module/pubspec.yaml b/dev/benchmarks/multiple_flutters/module/pubspec.yaml
index d73ed2a..1fe2600 100644
--- a/dev/benchmarks/multiple_flutters/module/pubspec.yaml
+++ b/dev/benchmarks/multiple_flutters/module/pubspec.yaml
@@ -21,6 +21,7 @@
   file: 6.1.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   http: 0.13.5 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   http_parser: 4.0.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   material_color_utilities: 0.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   meta: 1.8.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   path: 1.8.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -50,4 +51,4 @@
     androidPackage: com.example.multiple_flutters_module
     iosBundleIdentifier: com.example.multipleFluttersModule
 
-# PUBSPEC CHECKSUM: 309a
+# PUBSPEC CHECKSUM: 12c9
diff --git a/dev/benchmarks/platform_views_layout/pubspec.yaml b/dev/benchmarks/platform_views_layout/pubspec.yaml
index 82fa330..411d656 100644
--- a/dev/benchmarks/platform_views_layout/pubspec.yaml
+++ b/dev/benchmarks/platform_views_layout/pubspec.yaml
@@ -21,6 +21,7 @@
   collection: 1.16.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   crypto: 3.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   file: 6.1.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   matcher: 0.12.12 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   material_color_utilities: 0.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   meta: 1.8.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -51,7 +52,6 @@
   http_multi_server: 3.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   http_parser: 4.0.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   io: 1.0.3 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   logging: 1.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   mime: 1.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   node_preamble: 2.0.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/pubspec.yaml b/dev/benchmarks/platform_views_layout_hybrid_composition/pubspec.yaml
index cde805d..8ec7e38 100644
--- a/dev/benchmarks/platform_views_layout_hybrid_composition/pubspec.yaml
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/pubspec.yaml
@@ -21,6 +21,7 @@
   collection: 1.16.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   crypto: 3.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   file: 6.1.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   matcher: 0.12.12 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   material_color_utilities: 0.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   meta: 1.8.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -51,7 +52,6 @@
   http_multi_server: 3.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   http_parser: 4.0.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   io: 1.0.3 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   logging: 1.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   mime: 1.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   node_preamble: 2.0.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
diff --git a/dev/benchmarks/test_apps/stocks/pubspec.yaml b/dev/benchmarks/test_apps/stocks/pubspec.yaml
index 6bbc063..5aeb2a8 100644
--- a/dev/benchmarks/test_apps/stocks/pubspec.yaml
+++ b/dev/benchmarks/test_apps/stocks/pubspec.yaml
@@ -17,6 +17,7 @@
   clock: 1.1.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   collection: 1.16.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   http_parser: 4.0.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   material_color_utilities: 0.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   meta: 1.8.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   path: 1.8.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -47,7 +48,6 @@
   glob: 2.1.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   http_multi_server: 3.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   io: 1.0.3 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   logging: 1.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   matcher: 0.12.12 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   mime: 1.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
diff --git a/dev/bots/allowlist.dart b/dev/bots/allowlist.dart
index 6e3b17c..45a9fc2 100644
--- a/dev/bots/allowlist.dart
+++ b/dev/bots/allowlist.dart
@@ -33,6 +33,7 @@
   'fuchsia_remote_debug_protocol',
   'integration_test',
   'intl',
+  'js',
   'matcher',
   'material_color_utilities',
   'meta',
diff --git a/dev/integration_tests/abstract_method_smoke_test/pubspec.yaml b/dev/integration_tests/abstract_method_smoke_test/pubspec.yaml
index c50189b..ec4b6f1 100644
--- a/dev/integration_tests/abstract_method_smoke_test/pubspec.yaml
+++ b/dev/integration_tests/abstract_method_smoke_test/pubspec.yaml
@@ -12,6 +12,7 @@
 
   characters: 1.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   collection: 1.16.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   material_color_utilities: 0.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   meta: 1.8.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   vector_math: 2.1.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -19,4 +20,4 @@
 flutter:
   uses-material-design: true
 
-# PUBSPEC CHECKSUM: de62
+# PUBSPEC CHECKSUM: 1b91
diff --git a/dev/integration_tests/android_embedding_v2_smoke_test/pubspec.yaml b/dev/integration_tests/android_embedding_v2_smoke_test/pubspec.yaml
index a57273d..1fd8072 100644
--- a/dev/integration_tests/android_embedding_v2_smoke_test/pubspec.yaml
+++ b/dev/integration_tests/android_embedding_v2_smoke_test/pubspec.yaml
@@ -30,6 +30,7 @@
   battery_platform_interface: 2.0.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   characters: 1.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   collection: 1.16.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   material_color_utilities: 0.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   meta: 1.8.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   plugin_platform_interface: 2.1.3 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -95,4 +96,4 @@
   # For details regarding fonts from package dependencies,
   # see https://flutter.dev/custom-fonts/#from-packages
 
-# PUBSPEC CHECKSUM: 0290
+# PUBSPEC CHECKSUM: 17bf
diff --git a/dev/integration_tests/android_views/pubspec.yaml b/dev/integration_tests/android_views/pubspec.yaml
index c1fd839..39313f5 100644
--- a/dev/integration_tests/android_views/pubspec.yaml
+++ b/dev/integration_tests/android_views/pubspec.yaml
@@ -24,6 +24,7 @@
   crypto: 3.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   ffi: 2.0.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   file: 6.1.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   matcher: 0.12.12 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   material_color_utilities: 0.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   meta: 1.8.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -65,7 +66,6 @@
   http_multi_server: 3.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   http_parser: 4.0.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   io: 1.0.3 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   logging: 1.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   mime: 1.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   node_preamble: 2.0.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
diff --git a/dev/integration_tests/deferred_components_test/pubspec.yaml b/dev/integration_tests/deferred_components_test/pubspec.yaml
index 3241988..a286d4c 100644
--- a/dev/integration_tests/deferred_components_test/pubspec.yaml
+++ b/dev/integration_tests/deferred_components_test/pubspec.yaml
@@ -16,6 +16,7 @@
   collection: 1.16.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   crypto: 3.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   file: 6.1.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   matcher: 0.12.12 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   material_color_utilities: 0.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   meta: 1.8.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -46,7 +47,6 @@
   http_multi_server: 3.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   http_parser: 4.0.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   io: 1.0.3 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   logging: 1.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   mime: 1.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   node_preamble: 2.0.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
diff --git a/dev/integration_tests/hybrid_android_views/pubspec.yaml b/dev/integration_tests/hybrid_android_views/pubspec.yaml
index 3b19ad0..26096d3 100644
--- a/dev/integration_tests/hybrid_android_views/pubspec.yaml
+++ b/dev/integration_tests/hybrid_android_views/pubspec.yaml
@@ -24,6 +24,7 @@
   crypto: 3.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   ffi: 2.0.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   file: 6.1.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   matcher: 0.12.12 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   material_color_utilities: 0.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   meta: 1.8.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -65,7 +66,6 @@
   http_multi_server: 3.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   http_parser: 4.0.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   io: 1.0.3 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   logging: 1.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   mime: 1.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   node_preamble: 2.0.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
diff --git a/dev/integration_tests/ios_add2app_life_cycle/flutterapp/pubspec.yaml b/dev/integration_tests/ios_add2app_life_cycle/flutterapp/pubspec.yaml
index 556e02d..7420ec4 100644
--- a/dev/integration_tests/ios_add2app_life_cycle/flutterapp/pubspec.yaml
+++ b/dev/integration_tests/ios_add2app_life_cycle/flutterapp/pubspec.yaml
@@ -26,6 +26,7 @@
 
   characters: 1.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   collection: 1.16.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   material_color_utilities: 0.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   meta: 1.8.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   vector_math: 2.1.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -98,4 +99,4 @@
     androidPackage: com.example.iosadd2appflutter
     iosBundleIdentifier: com.example.iosAdd2appFlutter
 
-# PUBSPEC CHECKSUM: 0467
+# PUBSPEC CHECKSUM: 8996
diff --git a/dev/integration_tests/ios_app_with_extensions/pubspec.yaml b/dev/integration_tests/ios_app_with_extensions/pubspec.yaml
index 70da3e8..f4f133a 100644
--- a/dev/integration_tests/ios_app_with_extensions/pubspec.yaml
+++ b/dev/integration_tests/ios_app_with_extensions/pubspec.yaml
@@ -25,6 +25,7 @@
   characters: 1.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   collection: 1.16.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   device_info_platform_interface: 2.0.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   material_color_utilities: 0.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   meta: 1.8.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   plugin_platform_interface: 2.1.3 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -90,4 +91,4 @@
   # For details regarding fonts from package dependencies,
   # see https://flutter.dev/custom-fonts/#from-packages
 
-# PUBSPEC CHECKSUM: d7eb
+# PUBSPEC CHECKSUM: 591b
diff --git a/dev/integration_tests/ios_platform_view_tests/pubspec.yaml b/dev/integration_tests/ios_platform_view_tests/pubspec.yaml
index cf3c8fc..ea80963 100644
--- a/dev/integration_tests/ios_platform_view_tests/pubspec.yaml
+++ b/dev/integration_tests/ios_platform_view_tests/pubspec.yaml
@@ -16,6 +16,7 @@
   collection: 1.16.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   crypto: 3.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   file: 6.1.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   matcher: 0.12.12 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   material_color_utilities: 0.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   meta: 1.8.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -46,7 +47,6 @@
   http_multi_server: 3.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   http_parser: 4.0.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   io: 1.0.3 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   logging: 1.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   mime: 1.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   node_preamble: 2.0.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
diff --git a/dev/integration_tests/non_nullable/pubspec.yaml b/dev/integration_tests/non_nullable/pubspec.yaml
index 6e841b2..3f60956 100644
--- a/dev/integration_tests/non_nullable/pubspec.yaml
+++ b/dev/integration_tests/non_nullable/pubspec.yaml
@@ -14,6 +14,7 @@
 
   characters: 1.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   collection: 1.16.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   material_color_utilities: 0.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   meta: 1.8.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   vector_math: 2.1.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -38,4 +39,4 @@
 flutter:
   uses-material-design: true
 
-# PUBSPEC CHECKSUM: 0467
+# PUBSPEC CHECKSUM: 8996
diff --git a/dev/integration_tests/release_smoke_test/pubspec.yaml b/dev/integration_tests/release_smoke_test/pubspec.yaml
index 20fef99..c215005 100644
--- a/dev/integration_tests/release_smoke_test/pubspec.yaml
+++ b/dev/integration_tests/release_smoke_test/pubspec.yaml
@@ -9,6 +9,7 @@
 
   characters: 1.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   collection: 1.16.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   material_color_utilities: 0.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   meta: 1.8.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   vector_math: 2.1.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -33,4 +34,4 @@
   test_api: 0.4.14 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   vm_service: 9.4.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
 
-# PUBSPEC CHECKSUM: c64b
+# PUBSPEC CHECKSUM: c67a
diff --git a/dev/integration_tests/spell_check/pubspec.yaml b/dev/integration_tests/spell_check/pubspec.yaml
index b6a4d48..2c96ef0 100644
--- a/dev/integration_tests/spell_check/pubspec.yaml
+++ b/dev/integration_tests/spell_check/pubspec.yaml
@@ -36,6 +36,7 @@
 
   characters: 1.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   collection: 1.16.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   material_color_utilities: 0.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   meta: 1.8.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   vector_math: 2.1.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -105,4 +106,4 @@
   # For details regarding fonts from package dependencies,
   # see https://flutter.dev/custom-fonts/#from-packages
 
-# PUBSPEC CHECKSUM: e0f2
+# PUBSPEC CHECKSUM: aa22
diff --git a/dev/integration_tests/web/pubspec.yaml b/dev/integration_tests/web/pubspec.yaml
index 8b984a3..ec4d374 100644
--- a/dev/integration_tests/web/pubspec.yaml
+++ b/dev/integration_tests/web/pubspec.yaml
@@ -16,8 +16,9 @@
 
   characters: 1.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   collection: 1.16.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   material_color_utilities: 0.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   meta: 1.8.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   vector_math: 2.1.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
 
-# PUBSPEC CHECKSUM: de62
+# PUBSPEC CHECKSUM: 1b91
diff --git a/dev/integration_tests/web_compile_tests/pubspec.yaml b/dev/integration_tests/web_compile_tests/pubspec.yaml
index 04600a7..bd26387 100644
--- a/dev/integration_tests/web_compile_tests/pubspec.yaml
+++ b/dev/integration_tests/web_compile_tests/pubspec.yaml
@@ -8,8 +8,9 @@
 
   characters: 1.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   collection: 1.16.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   material_color_utilities: 0.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   meta: 1.8.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   vector_math: 2.1.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
 
-# PUBSPEC CHECKSUM: de62
+# PUBSPEC CHECKSUM: 1b91
diff --git a/dev/manual_tests/pubspec.yaml b/dev/manual_tests/pubspec.yaml
index daa8675..ce97d0c 100644
--- a/dev/manual_tests/pubspec.yaml
+++ b/dev/manual_tests/pubspec.yaml
@@ -9,6 +9,7 @@
 
   characters: 1.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   collection: 1.16.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   material_color_utilities: 0.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   meta: 1.8.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   vector_math: 2.1.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -33,4 +34,4 @@
 flutter:
   uses-material-design: true
 
-# PUBSPEC CHECKSUM: 2ebf
+# PUBSPEC CHECKSUM: e9ee
diff --git a/dev/tools/vitool/pubspec.yaml b/dev/tools/vitool/pubspec.yaml
index e833347..c117026 100644
--- a/dev/tools/vitool/pubspec.yaml
+++ b/dev/tools/vitool/pubspec.yaml
@@ -15,6 +15,7 @@
 
   characters: 1.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   collection: 1.16.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   material_color_utilities: 0.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   meta: 1.8.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   petitparser: 5.0.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -36,4 +37,4 @@
   term_glyph: 1.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   test_api: 0.4.14 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
 
-# PUBSPEC CHECKSUM: 1e60
+# PUBSPEC CHECKSUM: e38f
diff --git a/dev/tracing_tests/pubspec.yaml b/dev/tracing_tests/pubspec.yaml
index 2f9ea21..a4ad3de 100644
--- a/dev/tracing_tests/pubspec.yaml
+++ b/dev/tracing_tests/pubspec.yaml
@@ -12,6 +12,7 @@
 
   characters: 1.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   collection: 1.16.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   material_color_utilities: 0.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   meta: 1.8.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   vector_math: 2.1.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -33,4 +34,4 @@
   term_glyph: 1.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   test_api: 0.4.14 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
 
-# PUBSPEC CHECKSUM: c64b
+# PUBSPEC CHECKSUM: c67a
diff --git a/examples/api/pubspec.yaml b/examples/api/pubspec.yaml
index da04feb..55e4db8 100644
--- a/examples/api/pubspec.yaml
+++ b/examples/api/pubspec.yaml
@@ -17,6 +17,7 @@
 
   characters: 1.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   collection: 1.16.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   material_color_utilities: 0.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   meta: 1.8.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   vector_math: 2.1.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -49,7 +50,6 @@
   http_multi_server: 3.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   http_parser: 4.0.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   io: 1.0.3 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   logging: 1.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   matcher: 0.12.12 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   mime: 1.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
diff --git a/examples/flutter_view/pubspec.yaml b/examples/flutter_view/pubspec.yaml
index 0562f92..8d722f7 100644
--- a/examples/flutter_view/pubspec.yaml
+++ b/examples/flutter_view/pubspec.yaml
@@ -10,6 +10,7 @@
 
   characters: 1.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   collection: 1.16.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   material_color_utilities: 0.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   meta: 1.8.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   vector_math: 2.1.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -19,4 +20,4 @@
   assets:
     - assets/flutter-mark-square-64.png
 
-# PUBSPEC CHECKSUM: de62
+# PUBSPEC CHECKSUM: 1b91
diff --git a/examples/hello_world/pubspec.yaml b/examples/hello_world/pubspec.yaml
index 2f47168..589b0ba 100644
--- a/examples/hello_world/pubspec.yaml
+++ b/examples/hello_world/pubspec.yaml
@@ -9,6 +9,7 @@
 
   characters: 1.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   collection: 1.16.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   material_color_utilities: 0.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   meta: 1.8.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   vector_math: 2.1.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -37,7 +38,6 @@
   http_multi_server: 3.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   http_parser: 4.0.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   io: 1.0.3 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   logging: 1.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   matcher: 0.12.12 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   mime: 1.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
diff --git a/examples/image_list/pubspec.yaml b/examples/image_list/pubspec.yaml
index 0108045..ee2e366 100644
--- a/examples/image_list/pubspec.yaml
+++ b/examples/image_list/pubspec.yaml
@@ -16,6 +16,7 @@
 
   characters: 1.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   collection: 1.16.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   material_color_utilities: 0.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   meta: 1.8.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   vector_math: 2.1.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -53,4 +54,4 @@
   assets:
    - images/coast.jpg
 
-# PUBSPEC CHECKSUM: 0467
+# PUBSPEC CHECKSUM: 8996
diff --git a/examples/layers/pubspec.yaml b/examples/layers/pubspec.yaml
index 4860e02..61ba45b 100644
--- a/examples/layers/pubspec.yaml
+++ b/examples/layers/pubspec.yaml
@@ -9,6 +9,7 @@
 
   characters: 1.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   collection: 1.16.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   material_color_utilities: 0.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   meta: 1.8.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   vector_math: 2.1.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -35,4 +36,4 @@
     - services/data.json
   uses-material-design: true
 
-# PUBSPEC CHECKSUM: 2ebf
+# PUBSPEC CHECKSUM: e9ee
diff --git a/examples/platform_channel/pubspec.yaml b/examples/platform_channel/pubspec.yaml
index be8d680..74db8be 100644
--- a/examples/platform_channel/pubspec.yaml
+++ b/examples/platform_channel/pubspec.yaml
@@ -9,6 +9,7 @@
 
   characters: 1.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   collection: 1.16.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   material_color_utilities: 0.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   meta: 1.8.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   vector_math: 2.1.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -37,7 +38,6 @@
   http_multi_server: 3.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   http_parser: 4.0.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   io: 1.0.3 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   logging: 1.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   matcher: 0.12.12 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   mime: 1.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
diff --git a/examples/platform_channel_swift/pubspec.yaml b/examples/platform_channel_swift/pubspec.yaml
index 83aa191..70c1d82 100644
--- a/examples/platform_channel_swift/pubspec.yaml
+++ b/examples/platform_channel_swift/pubspec.yaml
@@ -9,6 +9,7 @@
 
   characters: 1.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   collection: 1.16.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   material_color_utilities: 0.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   meta: 1.8.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   vector_math: 2.1.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -37,7 +38,6 @@
   http_multi_server: 3.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   http_parser: 4.0.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   io: 1.0.3 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   logging: 1.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   matcher: 0.12.12 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   mime: 1.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
diff --git a/examples/platform_view/pubspec.yaml b/examples/platform_view/pubspec.yaml
index 87d650d..dbb7d3e 100644
--- a/examples/platform_view/pubspec.yaml
+++ b/examples/platform_view/pubspec.yaml
@@ -9,6 +9,7 @@
 
   characters: 1.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   collection: 1.16.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   material_color_utilities: 0.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   meta: 1.8.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   vector_math: 2.1.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -19,4 +20,4 @@
   assets:
     - assets/flutter-mark-square-64.png
 
-# PUBSPEC CHECKSUM: de62
+# PUBSPEC CHECKSUM: 1b91
diff --git a/examples/splash/pubspec.yaml b/examples/splash/pubspec.yaml
index 5e89929..c9729f0 100644
--- a/examples/splash/pubspec.yaml
+++ b/examples/splash/pubspec.yaml
@@ -9,6 +9,7 @@
 
   characters: 1.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   collection: 1.16.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   material_color_utilities: 0.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   meta: 1.8.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   vector_math: 2.1.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -30,4 +31,4 @@
   term_glyph: 1.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   test_api: 0.4.14 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
 
-# PUBSPEC CHECKSUM: 2ebf
+# PUBSPEC CHECKSUM: e9ee
diff --git a/packages/flutter/lib/src/foundation/_platform_web.dart b/packages/flutter/lib/src/foundation/_platform_web.dart
index 4e5f85a..a9fc510 100644
--- a/packages/flutter/lib/src/foundation/_platform_web.dart
+++ b/packages/flutter/lib/src/foundation/_platform_web.dart
@@ -2,14 +2,55 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-import 'dart:html' as html;
 import 'dart:ui' as ui;
 
+import 'package:js/js.dart';
+
 import 'platform.dart' as platform;
 
 export 'platform.dart' show TargetPlatform;
 
-/// The dart:html implementation of [platform.defaultTargetPlatform].
+/// [DomWindow] interop object.
+@JS()
+@staticInterop
+class DomWindow {}
+
+/// [DomWindow] required extension.
+extension DomWindowExtension on DomWindow {
+  /// Returns a [DomMediaQueryList] of the media that matches [query].
+  external DomMediaQueryList matchMedia(String? query);
+
+  /// Returns the [DomNavigator] associated with this window.
+  external DomNavigator get navigator;
+}
+
+/// The underyling window.
+@JS('window')
+external DomWindow get domWindow;
+
+/// [DomMediaQueryList] interop object.
+@JS()
+@staticInterop
+class DomMediaQueryList {}
+
+/// [DomMediaQueryList] required extension.
+extension DomMediaQueryListExtension on DomMediaQueryList {
+  /// Whether or not the query matched.
+  external bool get matches;
+}
+
+/// [DomNavigator] interop object.
+@JS()
+@staticInterop
+class DomNavigator {}
+
+/// [DomNavigator] required extension.
+extension DomNavigatorExtension on DomNavigator {
+  /// The underyling platform string.
+  external String? get platform;
+}
+
+/// The web implementation of [platform.defaultTargetPlatform].
 platform.TargetPlatform get defaultTargetPlatform {
   // To get a better guess at the targetPlatform we need to be able to reference
   // the window, but that won't be available until we fix the platforms
@@ -39,7 +80,7 @@
 // 0.20ms. As `defaultTargetPlatform` is routinely called dozens of times per
 // frame this value should be cached.
 final platform.TargetPlatform _browserPlatform = () {
-  final String navigatorPlatform = html.window.navigator.platform?.toLowerCase() ?? '';
+  final String navigatorPlatform = domWindow.navigator.platform?.toLowerCase() ?? '';
   if (navigatorPlatform.startsWith('mac')) {
     return platform.TargetPlatform.macOS;
   }
@@ -59,7 +100,7 @@
   // indicates that a device has a "fine pointer" (mouse) as the primary
   // pointing device, then we'll assume desktop linux, and otherwise we'll
   // assume Android.
-  if (html.window.matchMedia('only screen and (pointer: fine)').matches) {
+  if (domWindow.matchMedia('only screen and (pointer: fine)').matches) {
     return platform.TargetPlatform.linux;
   }
   return platform.TargetPlatform.android;
diff --git a/packages/flutter/lib/src/foundation/bitfield.dart b/packages/flutter/lib/src/foundation/bitfield.dart
index 5cb5383..0110324 100644
--- a/packages/flutter/lib/src/foundation/bitfield.dart
+++ b/packages/flutter/lib/src/foundation/bitfield.dart
@@ -3,7 +3,7 @@
 // found in the LICENSE file.
 
 import '_bitfield_io.dart'
-  if (dart.library.html) '_bitfield_web.dart' as bitfield;
+  if (dart.library.js_util) '_bitfield_web.dart' as bitfield;
 
 /// The largest SMI value.
 ///
diff --git a/packages/flutter/lib/src/foundation/isolates.dart b/packages/flutter/lib/src/foundation/isolates.dart
index a978565..31935c8 100644
--- a/packages/flutter/lib/src/foundation/isolates.dart
+++ b/packages/flutter/lib/src/foundation/isolates.dart
@@ -5,7 +5,7 @@
 import 'dart:async';
 
 import '_isolates_io.dart'
-  if (dart.library.html) '_isolates_web.dart' as isolates;
+  if (dart.library.js_util) '_isolates_web.dart' as isolates;
 
 /// Signature for the callback passed to [compute].
 ///
diff --git a/packages/flutter/lib/src/foundation/platform.dart b/packages/flutter/lib/src/foundation/platform.dart
index bff47ff..c730c6a 100644
--- a/packages/flutter/lib/src/foundation/platform.dart
+++ b/packages/flutter/lib/src/foundation/platform.dart
@@ -3,7 +3,7 @@
 // found in the LICENSE file.
 
 import '_platform_io.dart'
-  if (dart.library.html) '_platform_web.dart' as platform;
+  if (dart.library.js_util) '_platform_web.dart' as platform;
 
 /// The [TargetPlatform] that matches the platform on which the framework is
 /// currently executing.
diff --git a/packages/flutter/lib/src/painting/_network_image_web.dart b/packages/flutter/lib/src/painting/_network_image_web.dart
index f3c2fe9..2bee198 100644
--- a/packages/flutter/lib/src/painting/_network_image_web.dart
+++ b/packages/flutter/lib/src/painting/_network_image_web.dart
@@ -3,21 +3,122 @@
 // found in the LICENSE file.
 
 import 'dart:async';
-import 'dart:html' as html;
 import 'dart:typed_data';
 import 'dart:ui' as ui;
 
 import 'package:flutter/foundation.dart';
+import 'package:js/js.dart';
+import 'package:js/js_util.dart' as js_util;
 
 import 'image_provider.dart' as image_provider;
 import 'image_stream.dart';
 
+/// [DomXMLHttpRequest] interop class.
+@JS()
+@staticInterop
+class DomXMLHttpRequest {}
+
+/// [DomXMLHttpRequest] extension.
+extension DomXMLHttpRequestExtension on DomXMLHttpRequest {
+  /// Gets the response.
+  external dynamic get response;
+
+  /// Gets the response text.
+  external String? get responseText;
+
+  /// Gets the response type.
+  external String get responseType;
+
+  /// Gets the status.
+  external int? get status;
+
+  /// Set the response type.
+  external set responseType(String value);
+
+  /// Set the request header.
+  external void setRequestHeader(String header, String value);
+
+  /// Open the request.
+  void open(String method, String url, bool isAsync) => js_util.callMethod(
+      this, 'open', <Object>[method, url, isAsync]);
+
+  /// Send the request.
+  void send() => js_util.callMethod(this, 'send', <Object>[]);
+
+  /// Add event listener.
+  void addEventListener(String type, DomEventListener? listener,
+      [bool? useCapture]) {
+    if (listener != null) {
+      js_util.callMethod(this, 'addEventListener',
+          <Object>[type, listener, if (useCapture != null) useCapture]);
+    }
+  }
+}
+
+/// Factory function for creating [DomXMLHttpRequest].
+DomXMLHttpRequest createDomXMLHttpRequest() =>
+    domCallConstructorString('XMLHttpRequest', <Object?>[])!
+        as DomXMLHttpRequest;
+
+/// Type for event listener.
+typedef DomEventListener = void Function(DomEvent event);
+
+/// [DomEvent] interop object.
+@JS()
+@staticInterop
+class DomEvent {}
+
+/// [DomEvent] reqiured extension.
+extension DomEventExtension on DomEvent {
+  /// Get the event type.
+  external String get type;
+
+  /// Initialize an event.
+  void initEvent(String type, [bool? bubbles, bool? cancelable]) =>
+      js_util.callMethod(this, 'initEvent', <Object>[
+        type,
+        if (bubbles != null) bubbles,
+        if (cancelable != null) cancelable
+      ]);
+}
+
+/// [DomProgressEvent] interop object.
+@JS()
+@staticInterop
+class DomProgressEvent extends DomEvent {}
+
+/// [DomProgressEvent] reqiured extension.
+extension DomProgressEventExtension on DomProgressEvent {
+  /// Amount of work done.
+  external int? get loaded;
+
+  /// Total amount of work.
+  external int? get total;
+}
+
+/// Gets a constructor from a [String].
+Object? domGetConstructor(String constructorName) =>
+    js_util.getProperty(domWindow, constructorName);
+
+/// Calls a constructor as a [String].
+Object? domCallConstructorString(String constructorName, List<Object?> args) {
+  final Object? constructor = domGetConstructor(constructorName);
+  if (constructor == null) {
+    return null;
+  }
+  return js_util.callConstructor(constructor, args);
+}
+
+/// The underyling window object.
+@JS('window')
+external Object get domWindow;
+
 /// Creates a type for an overridable factory function for testing purposes.
-typedef HttpRequestFactory = html.HttpRequest Function();
+typedef HttpRequestFactory = DomXMLHttpRequest Function();
 
 /// Default HTTP client.
-html.HttpRequest _httpClient() {
-  return html.HttpRequest();
+DomXMLHttpRequest _httpClient() {
+  return DomXMLHttpRequest();
 }
 
 /// Creates an overridable factory function.
@@ -28,7 +129,7 @@
   httpRequestFactory = _httpClient;
 }
 
-/// The dart:html implementation of [image_provider.NetworkImage].
+/// The web implementation of [image_provider.NetworkImage].
 ///
 /// NetworkImage on the web does not support decoding to a specified size.
 @immutable
@@ -121,17 +222,17 @@
     // We use a different method when headers are set because the
     // `ui.webOnlyInstantiateImageCodecFromUrl` method is not capable of handling headers.
     if (key.headers?.isNotEmpty ?? false) {
-      final Completer<html.HttpRequest> completer =
-          Completer<html.HttpRequest>();
-      final html.HttpRequest request = httpRequestFactory();
+      final Completer<DomXMLHttpRequest> completer =
+          Completer<DomXMLHttpRequest>();
+      final DomXMLHttpRequest request = httpRequestFactory();
 
-      request.open('GET', key.url, async: true);
+      request.open('GET', key.url, true);
       request.responseType = 'arraybuffer';
       key.headers!.forEach((String header, String value) {
         request.setRequestHeader(header, value);
       });
 
-      request.onLoad.listen((html.ProgressEvent e) {
+      request.addEventListener('load', allowInterop((DomEvent e) {
         final int? status = request.status;
         final bool accepted = status! >= 200 && status < 300;
         final bool fileUri = status == 0; // file:// URIs have status of 0.
@@ -147,9 +248,9 @@
           throw image_provider.NetworkImageLoadException(
               statusCode: request.status ?? 400, uri: resolved);
         }
-      });
+      }));
 
-      request.onError.listen(completer.completeError);
+      request.addEventListener('error', allowInterop(completer.completeError));
 
       request.send();
 
diff --git a/packages/flutter/lib/src/painting/image_provider.dart b/packages/flutter/lib/src/painting/image_provider.dart
index 51bc1c6..ff316af 100644
--- a/packages/flutter/lib/src/painting/image_provider.dart
+++ b/packages/flutter/lib/src/painting/image_provider.dart
@@ -11,7 +11,7 @@
 import 'package:flutter/services.dart';
 
 import '_network_image_io.dart'
-  if (dart.library.html) '_network_image_web.dart' as network_image;
+  if (dart.library.js_util) '_network_image_web.dart' as network_image;
 import 'binding.dart';
 import 'image_cache.dart';
 import 'image_stream.dart';
diff --git a/packages/flutter/pubspec.yaml b/packages/flutter/pubspec.yaml
index 375253e..375d7fe 100644
--- a/packages/flutter/pubspec.yaml
+++ b/packages/flutter/pubspec.yaml
@@ -9,6 +9,7 @@
   # To update these, use "flutter update-packages --force-upgrade".
   characters: 1.2.1
   collection: 1.16.0
+  js: 0.6.4
   material_color_utilities: 0.2.0
   meta: 1.8.0
   vector_math: 2.1.4
@@ -37,4 +38,4 @@
   term_glyph: 1.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   test_api: 0.4.14 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
 
-# PUBSPEC CHECKSUM: 16ba
+# PUBSPEC CHECKSUM: a9e9
diff --git a/packages/flutter/test/painting/_network_image_test_web.dart b/packages/flutter/test/painting/_network_image_test_web.dart
index 4cf9d64..7f3fc55 100644
--- a/packages/flutter/test/painting/_network_image_test_web.dart
+++ b/packages/flutter/test/painting/_network_image_test_web.dart
@@ -2,15 +2,13 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-import 'dart:async';
-import 'dart:html' as html;
-
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/src/painting/_network_image_web.dart';
 import 'package:flutter_test/flutter_test.dart';
 
 import '../image_data.dart';
+import '_test_http_request.dart';
 
 void runTests() {
   tearDown(() {
@@ -21,13 +19,11 @@
       (WidgetTester tester) async {
     final TestHttpRequest testHttpRequest = TestHttpRequest()
       ..status = 200
-      ..onLoad = Stream<html.ProgressEvent>.fromIterable(<html.ProgressEvent>[
-        html.ProgressEvent('test error'),
-      ])
+      ..mockEvent = MockEvent('load', createDomEvent('Event', 'test error'))
       ..response = (Uint8List.fromList(kTransparentImage)).buffer;
 
     httpRequestFactory = () {
-      return testHttpRequest;
+      return testHttpRequest.getMock();
     };
 
     const Map<String, String> headers = <String, String>{
@@ -49,12 +45,11 @@
       (WidgetTester tester) async {
     final TestHttpRequest testHttpRequest = TestHttpRequest()
       ..status = 404
-      ..onError = Stream<html.ProgressEvent>.fromIterable(<html.ProgressEvent>[
-        html.ProgressEvent('test error'),
-      ]);
+      ..mockEvent = MockEvent('error', createDomEvent('Event', 'test error'));
+
 
     httpRequestFactory = () {
-      return testHttpRequest;
+      return testHttpRequest.getMock();
     };
 
     const Map<String, String> headers = <String, String>{
@@ -68,20 +63,18 @@
     );
 
     await tester.pumpWidget(image);
-    expect((tester.takeException() as html.ProgressEvent).type, 'test error');
+    expect((tester.takeException() as DomProgressEvent).type, 'test error');
   });
 
   testWidgets('loads an image from the network with empty response',
       (WidgetTester tester) async {
     final TestHttpRequest testHttpRequest = TestHttpRequest()
       ..status = 200
-      ..onLoad = Stream<html.ProgressEvent>.fromIterable(<html.ProgressEvent>[
-        html.ProgressEvent('test error'),
-      ])
+      ..mockEvent = MockEvent('load', createDomEvent('Event', 'test error'))
       ..response = (Uint8List.fromList(<int>[])).buffer;
 
     httpRequestFactory = () {
-      return testHttpRequest;
+      return testHttpRequest.getMock();
     };
 
     const Map<String, String> headers = <String, String>{
@@ -99,122 +92,3 @@
         'HTTP request failed, statusCode: 200, https://www.example.com/images/frame3.png');
   });
 }
-
-// ignore: avoid_implementing_value_types
-class TestHttpRequest implements html.HttpRequest {
-  @override
-  String responseType = 'invalid';
-
-  @override
-  int? timeout = 10;
-
-  @override
-  bool? withCredentials = false;
-
-  @override
-  void abort() {
-    throw UnimplementedError();
-  }
-
-  @override
-  void addEventListener(String type, html.EventListener? listener,
-      [bool? useCapture]) {
-    throw UnimplementedError();
-  }
-
-  @override
-  bool dispatchEvent(html.Event event) {
-    throw UnimplementedError();
-  }
-
-  @override
-  String getAllResponseHeaders() {
-    throw UnimplementedError();
-  }
-
-  @override
-  String getResponseHeader(String name) {
-    throw UnimplementedError();
-  }
-
-  @override
-  html.Events get on => throw UnimplementedError();
-
-  @override
-  Stream<html.ProgressEvent> get onAbort => throw UnimplementedError();
-
-  @override
-  Stream<html.ProgressEvent> onError =
-      Stream<html.ProgressEvent>.fromIterable(<html.ProgressEvent>[]);
-
-  @override
-  Stream<html.ProgressEvent> onLoad =
-      Stream<html.ProgressEvent>.fromIterable(<html.ProgressEvent>[]);
-
-  @override
-  Stream<html.ProgressEvent> get onLoadEnd => throw UnimplementedError();
-
-  @override
-  Stream<html.ProgressEvent> get onLoadStart => throw UnimplementedError();
-
-  @override
-  Stream<html.ProgressEvent> get onProgress => throw UnimplementedError();
-
-  @override
-  Stream<html.Event> get onReadyStateChange => throw UnimplementedError();
-
-  @override
-  Stream<html.ProgressEvent> get onTimeout => throw UnimplementedError();
-
-  @override
-  void open(String method, String url,
-      {bool? async, String? user, String? password}) {}
-
-  @override
-  void overrideMimeType(String mime) {
-    throw UnimplementedError();
-  }
-
-  @override
-  int get readyState => throw UnimplementedError();
-
-  @override
-  void removeEventListener(String type, html.EventListener? listener,
-      [bool? useCapture]) {
-    throw UnimplementedError();
-  }
-
-  @override
-  dynamic response;
-
-  Map<String, String> headers = <String, String>{};
-
-  @override
-  Map<String, String> get responseHeaders => headers;
-
-  @override
-  String get responseText => throw UnimplementedError();
-
-  @override
-  String get responseUrl => throw UnimplementedError();
-
-  @override
-  html.Document get responseXml => throw UnimplementedError();
-
-  @override
-  void send([dynamic bodyOrData]) {}
-
-  @override
-  void setRequestHeader(String name, String value) {
-    headers[name] = value;
-  }
-
-  @override
-  int status = -1;
-
-  @override
-  String get statusText => throw UnimplementedError();
-
-  @override
-  html.HttpRequestUpload get upload => throw UnimplementedError();
-}
diff --git a/packages/flutter/test/painting/_test_http_request.dart b/packages/flutter/test/painting/_test_http_request.dart
new file mode 100644
index 0000000..9e8dfe1
--- /dev/null
+++ b/packages/flutter/test/painting/_test_http_request.dart
@@ -0,0 +1,96 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:flutter/src/painting/_network_image_web.dart';
+import 'package:js/js.dart';
+import 'package:js/js_util.dart' as js_util;
+
+@JS()
+@staticInterop
+class DomDocument {}
+
+extension DomDocumentExtension on DomDocument {
+  external DomEvent createEvent(String eventType);
+}
+
+@JS('window.document')
+external DomDocument get domDocument;
+
+DomEvent createDomEvent(String type, String name) {
+  final DomEvent event = domDocument.createEvent(type);
+  event.initEvent(name, true, true);
+  return event;
+}
+
+@JS('Object.defineProperty')
+external void objectDefineProperty(Object o, String symbol, dynamic desc);
+
+void createGetter<T>(Object mock, String key, T Function() get) {
+  objectDefineProperty(
+      mock,
+      key,
+      js_util.jsify(
+          <dynamic, dynamic>{
+            'get': allowInterop(() => get())
+          }
+      ));
+}
+
+@JS()
+@staticInterop
+@anonymous
+class DomXMLHttpRequestMock {
+  external factory DomXMLHttpRequestMock({
+    void Function(String method, String url, bool async)? open,
+    String responseType = 'invalid',
+    int timeout = 10,
+    bool withCredentials = false,
+    void Function()? send,
+    void Function(String name, String value)? setRequestHeader,
+    void Function(String type, DomEventListener listener) addEventListener,
+  });
+}
+
+class TestHttpRequest {
+  TestHttpRequest() {
+    _mock = DomXMLHttpRequestMock(
+        open: allowInterop(open),
+        send: allowInterop(send),
+        setRequestHeader: allowInterop(setRequestHeader),
+        addEventListener: allowInterop(addEventListener),
+    );
+    createGetter(_mock, 'headers', () => headers);
+    createGetter(_mock, 'responseHeaders', () => responseHeaders);
+    createGetter(_mock, 'status', () => status);
+    createGetter(_mock, 'response', () => response);
+  }
+
+  late DomXMLHttpRequestMock _mock;
+  MockEvent? mockEvent;
+  Map<String, String> headers = <String, String>{};
+  int status = -1;
+  dynamic response;
+
+  Map<String, String> get responseHeaders => headers;
+  void open(String method, String url, bool async) {}
+  void send() {}
+  void setRequestHeader(String name, String value) {
+    headers[name] = value;
+  }
+
+  void addEventListener(String type, DomEventListener listener) {
+    if (type == mockEvent?.type) {
+      listener(mockEvent!.event);
+    }
+  }
+
+  DomXMLHttpRequest getMock() => _mock as DomXMLHttpRequest;
+}
+
+class MockEvent {
+  MockEvent(this.type, this.event);
+
+  final String type;
+  final DomEvent event;
+}
diff --git a/packages/flutter/test_private/test/pubspec.yaml b/packages/flutter/test_private/test/pubspec.yaml
index 5f588d1..f97b487 100644
--- a/packages/flutter/test_private/test/pubspec.yaml
+++ b/packages/flutter/test_private/test/pubspec.yaml
@@ -19,6 +19,7 @@
   async: 2.9.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   boolean_selector: 2.1.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   clock: 1.1.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   matcher: 0.12.12 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   material_color_utilities: 0.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   path: 1.8.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -38,4 +39,4 @@
   platform: 3.1.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   process: 4.2.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
 
-# PUBSPEC CHECKSUM: 16ba
+# PUBSPEC CHECKSUM: a9e9
diff --git a/packages/flutter_driver/pubspec.yaml b/packages/flutter_driver/pubspec.yaml
index 802e994..3586881 100644
--- a/packages/flutter_driver/pubspec.yaml
+++ b/packages/flutter_driver/pubspec.yaml
@@ -25,6 +25,7 @@
   clock: 1.1.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   collection: 1.16.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   crypto: 3.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   matcher: 0.12.12 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   material_color_utilities: 0.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   platform: 3.1.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -53,7 +54,6 @@
   http_multi_server: 3.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   http_parser: 4.0.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   io: 1.0.3 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   logging: 1.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   mime: 1.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   node_preamble: 2.0.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
diff --git a/packages/flutter_goldens/pubspec.yaml b/packages/flutter_goldens/pubspec.yaml
index e6291ce..5f6ebfb 100644
--- a/packages/flutter_goldens/pubspec.yaml
+++ b/packages/flutter_goldens/pubspec.yaml
@@ -23,6 +23,7 @@
   collection: 1.16.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   crypto: 3.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   fake_async: 1.3.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   matcher: 0.12.12 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   material_color_utilities: 0.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   path: 1.8.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -35,4 +36,4 @@
   typed_data: 1.3.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   vector_math: 2.1.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
 
-# PUBSPEC CHECKSUM: eb1a
+# PUBSPEC CHECKSUM: a249
diff --git a/packages/flutter_localizations/pubspec.yaml b/packages/flutter_localizations/pubspec.yaml
index 29c9db9..2f8f955 100644
--- a/packages/flutter_localizations/pubspec.yaml
+++ b/packages/flutter_localizations/pubspec.yaml
@@ -13,6 +13,7 @@
   characters: 1.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   clock: 1.1.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   collection: 1.16.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   material_color_utilities: 0.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   meta: 1.8.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   path: 1.8.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -33,4 +34,4 @@
   term_glyph: 1.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   test_api: 0.4.14 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
 
-# PUBSPEC CHECKSUM: c6f7
+# PUBSPEC CHECKSUM: 7627
diff --git a/packages/flutter_test/pubspec.yaml b/packages/flutter_test/pubspec.yaml
index 72981d1..cd7ba25 100644
--- a/packages/flutter_test/pubspec.yaml
+++ b/packages/flutter_test/pubspec.yaml
@@ -33,6 +33,7 @@
   boolean_selector: 2.1.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   characters: 1.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   collection: 1.16.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   matcher: 0.12.12 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   material_color_utilities: 0.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   meta: 1.8.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -44,4 +45,4 @@
 dev_dependencies:
   file: 6.1.4
 
-# PUBSPEC CHECKSUM: 76b3
+# PUBSPEC CHECKSUM: 59e2
diff --git a/packages/integration_test/example/pubspec.yaml b/packages/integration_test/example/pubspec.yaml
index e621d4d..9cd5dc1 100644
--- a/packages/integration_test/example/pubspec.yaml
+++ b/packages/integration_test/example/pubspec.yaml
@@ -14,6 +14,7 @@
 
   characters: 1.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   collection: 1.16.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   material_color_utilities: 0.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   meta: 1.8.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   vector_math: 2.1.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -50,7 +51,6 @@
   http_multi_server: 3.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   http_parser: 4.0.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   io: 1.0.3 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   logging: 1.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   matcher: 0.12.12 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   mime: 1.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
diff --git a/packages/integration_test/integration_test_macos/pubspec.yaml b/packages/integration_test/integration_test_macos/pubspec.yaml
index e5254be..17229df 100644
--- a/packages/integration_test/integration_test_macos/pubspec.yaml
+++ b/packages/integration_test/integration_test_macos/pubspec.yaml
@@ -18,6 +18,7 @@
 
   characters: 1.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   collection: 1.16.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   material_color_utilities: 0.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   meta: 1.8.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   vector_math: 2.1.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -25,4 +26,4 @@
 dev_dependencies:
   pedantic: 1.11.1
 
-# PUBSPEC CHECKSUM: 2c29
+# PUBSPEC CHECKSUM: 4e58
diff --git a/packages/integration_test/pubspec.yaml b/packages/integration_test/pubspec.yaml
index a8cd898..c737894 100644
--- a/packages/integration_test/pubspec.yaml
+++ b/packages/integration_test/pubspec.yaml
@@ -24,6 +24,7 @@
   crypto: 3.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   fake_async: 1.3.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   file: 6.1.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  js: 0.6.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   matcher: 0.12.12 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   material_color_utilities: 0.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   meta: 1.8.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -47,4 +48,4 @@
       ios:
         pluginClass: IntegrationTestPlugin
 
-# PUBSPEC CHECKSUM: b515
+# PUBSPEC CHECKSUM: 6544