diff --git a/packages/animations/example/web/index.html b/packages/animations/example/web/index.html
index 7fb138cc90f..956b11f49f7 100644
--- a/packages/animations/example/web/index.html
+++ b/packages/animations/example/web/index.html
@@ -8,6 +8,6 @@
   <title>example</title>
 </head>
 <body>
-  <script src="main.dart.js" type="application/javascript"></script>
+  <script src="flutter_bootstrap.js" async></script>
 </body>
 </html>
diff --git a/packages/camera/camera/example/web/index.html b/packages/camera/camera/example/web/index.html
index 2a3117d2936..015dee5950a 100644
--- a/packages/camera/camera/example/web/index.html
+++ b/packages/camera/camera/example/web/index.html
@@ -23,17 +23,8 @@
 </head>
 
 <body>
-  <!-- This script installs service_worker.js to provide PWA functionality to
-       application. For more information, see:
-       https://developers.google.com/web/fundamentals/primers/service-workers -->
-  <script>
-    if ('serviceWorker' in navigator) {
-      window.addEventListener('load', function () {
-        navigator.serviceWorker.register('flutter_service_worker.js');
-      });
-    }
   </script>
-  <script src="main.dart.js" type="application/javascript"></script>
+  <script src="flutter_bootstrap.js" async></script>
 </body>
 
-</html>
\ No newline at end of file
+</html>
diff --git a/packages/camera/camera_web/example/web/index.html b/packages/camera/camera_web/example/web/index.html
index f3c6a5e8a8e..d11c45a766b 100644
--- a/packages/camera/camera_web/example/web/index.html
+++ b/packages/camera/camera_web/example/web/index.html
@@ -7,6 +7,6 @@
         <title>Browser Tests</title>
     </head>
     <body>
-        <script src="main.dart.js"></script>
+        <script src="flutter_bootstrap.js" async></script>
     </body>
 </html>
diff --git a/packages/file_selector/file_selector/example/web/index.html b/packages/file_selector/file_selector/example/web/index.html
index c6fa1623be9..1fb8a628681 100644
--- a/packages/file_selector/file_selector/example/web/index.html
+++ b/packages/file_selector/file_selector/example/web/index.html
@@ -21,16 +21,6 @@
   <link rel="manifest" href="manifest.json">
 </head>
 <body>
-  <!-- This script installs service_worker.js to provide PWA functionality to
-       application. For more information, see:
-       https://developers.google.com/web/fundamentals/primers/service-workers -->
-  <script>
-    if ('serviceWorker' in navigator) {
-      window.addEventListener('load', function () {
-        navigator.serviceWorker.register('flutter_service_worker.js');
-      });
-    }
-  </script>
-  <script src="main.dart.js" type="application/javascript"></script>
+  <script src="flutter_bootstrap.js" async></script>
 </body>
 </html>
diff --git a/packages/file_selector/file_selector_web/example/web/index.html b/packages/file_selector/file_selector_web/example/web/index.html
index dc9f89762ae..7836d612c4e 100644
--- a/packages/file_selector/file_selector_web/example/web/index.html
+++ b/packages/file_selector/file_selector_web/example/web/index.html
@@ -7,6 +7,6 @@
         <title>Browser Tests</title>
     </head>
     <body>
-        <script src="main.dart.js"></script>
+        <script src="flutter_bootstrap.js" async></script>
     </body>
 </html>
diff --git a/packages/flutter_markdown/example/web/index.html b/packages/flutter_markdown/example/web/index.html
index 97bf470a835..f0596549e11 100644
--- a/packages/flutter_markdown/example/web/index.html
+++ b/packages/flutter_markdown/example/web/index.html
@@ -33,16 +33,6 @@
   <link rel="manifest" href="manifest.json">
 </head>
 <body>
-  <!-- This script installs service_worker.js to provide PWA functionality to
-       application. For more information, see:
-       https://developers.google.com/web/fundamentals/primers/service-workers -->
-  <script>
-    if ('serviceWorker' in navigator) {
-      window.addEventListener('flutter-first-frame', function () {
-        navigator.serviceWorker.register('flutter_service_worker.js');
-      });
-    }
-  </script>
-  <script src="main.dart.js" type="application/javascript"></script>
+  <script src="flutter_bootstrap.js" async></script>
 </body>
 </html>
diff --git a/packages/go_router/example/web/index.html b/packages/go_router/example/web/index.html
index 26266a4f387..0bebdc353df 100644
--- a/packages/go_router/example/web/index.html
+++ b/packages/go_router/example/web/index.html
@@ -30,72 +30,6 @@
   <link rel="manifest" href="manifest.json">
 </head>
 <body>
-  <!-- This script installs service_worker.js to provide PWA functionality to
-       application. For more information, see:
-       https://developers.google.com/web/fundamentals/primers/service-workers -->
-  <script>
-    var serviceWorkerVersion = null;
-    var scriptLoaded = false;
-    function loadMainDartJs() {
-      if (scriptLoaded) {
-        return;
-      }
-      scriptLoaded = true;
-      var scriptTag = document.createElement('script');
-      scriptTag.src = 'main.dart.js';
-      scriptTag.type = 'application/javascript';
-      document.body.append(scriptTag);
-    }
-
-    if ('serviceWorker' in navigator) {
-      // Service workers are supported. Use them.
-      window.addEventListener('load', function () {
-        // Wait for registration to finish before dropping the <script> tag.
-        // Otherwise, the browser will load the script multiple times,
-        // potentially different versions.
-        var serviceWorkerUrl = 'flutter_service_worker.js?v=' + serviceWorkerVersion;
-        navigator.serviceWorker.register(serviceWorkerUrl)
-          .then((reg) => {
-            function waitForActivation(serviceWorker) {
-              serviceWorker.addEventListener('statechange', () => {
-                if (serviceWorker.state == 'activated') {
-                  console.log('Installed new service worker.');
-                  loadMainDartJs();
-                }
-              });
-            }
-            if (!reg.active && (reg.installing || reg.waiting)) {
-              // No active web worker and we have installed or are installing
-              // one for the first time. Simply wait for it to activate.
-              waitForActivation(reg.installing ?? reg.waiting);
-            } else if (!reg.active.scriptURL.endsWith(serviceWorkerVersion)) {
-              // When the app updates the serviceWorkerVersion changes, so we
-              // need to ask the service worker to update.
-              console.log('New service worker available.');
-              reg.update();
-              waitForActivation(reg.installing);
-            } else {
-              // Existing service worker is still good.
-              console.log('Loading app from service worker.');
-              loadMainDartJs();
-            }
-          });
-
-        // If service worker doesn't succeed in a reasonable amount of time,
-        // fallback to plaint <script> tag.
-        setTimeout(() => {
-          if (!scriptLoaded) {
-            console.warn(
-              'Failed to load app from service worker. Falling back to plain <script> tag.',
-            );
-            loadMainDartJs();
-          }
-        }, 4000);
-      });
-    } else {
-      // Service workers not supported. Just drop the <script> tag.
-      loadMainDartJs();
-    }
-  </script>
+  <script src="flutter_bootstrap.js" async></script>
 </body>
 </html>
diff --git a/packages/google_maps_flutter/google_maps_flutter_web/example/web/index.html b/packages/google_maps_flutter/google_maps_flutter_web/example/web/index.html
index 9cbd7be791d..4d058d79cc5 100644
--- a/packages/google_maps_flutter/google_maps_flutter_web/example/web/index.html
+++ b/packages/google_maps_flutter/google_maps_flutter_web/example/web/index.html
@@ -10,6 +10,6 @@
         <script src="https://unpkg.com/@googlemaps/markerclusterer@2.5.3/dist/index.min.js"></script>
     </head>
     <body>
-        <script src="main.dart.js"></script>
+        <script src="flutter_bootstrap.js" async></script>
     </body>
 </html>
diff --git a/packages/google_sign_in/google_sign_in_web/example/web/index.html b/packages/google_sign_in/google_sign_in_web/example/web/index.html
index 9e1284771b8..0446dcd58ec 100644
--- a/packages/google_sign_in/google_sign_in_web/example/web/index.html
+++ b/packages/google_sign_in/google_sign_in_web/example/web/index.html
@@ -7,7 +7,7 @@
         <title>Browser Tests</title>
     </head>
     <body>
-        <script src="main.dart.js"></script>
+        <script src="flutter_bootstrap.js" async></script>
     </body>
 </html>
 
diff --git a/packages/image_picker/image_picker/example/web/index.html b/packages/image_picker/image_picker/example/web/index.html
index b05fdf84032..f61db847241 100644
--- a/packages/image_picker/image_picker/example/web/index.html
+++ b/packages/image_picker/image_picker/example/web/index.html
@@ -21,16 +21,6 @@
   <link rel="manifest" href="manifest.json">
 </head>
 <body>
-  <!-- This script installs service_worker.js to provide PWA functionality to
-       application. For more information, see:
-       https://developers.google.com/web/fundamentals/primers/service-workers -->
-  <!-- <script>
-    if ('serviceWorker' in navigator) {
-      window.addEventListener('load', function () {
-        navigator.serviceWorker.register('flutter_service_worker.js');
-      });
-    }
-  </script> -->
-  <script src="main.dart.js" type="application/javascript"></script>
+  <script src="flutter_bootstrap.js" async></script>
 </body>
 </html>
diff --git a/packages/image_picker/image_picker_for_web/example/web/index.html b/packages/image_picker/image_picker_for_web/example/web/index.html
index 7fb138cc90f..956b11f49f7 100644
--- a/packages/image_picker/image_picker_for_web/example/web/index.html
+++ b/packages/image_picker/image_picker_for_web/example/web/index.html
@@ -8,6 +8,6 @@
   <title>example</title>
 </head>
 <body>
-  <script src="main.dart.js" type="application/javascript"></script>
+  <script src="flutter_bootstrap.js" async></script>
 </body>
 </html>
diff --git a/packages/pointer_interceptor/pointer_interceptor/example/web/index.html b/packages/pointer_interceptor/pointer_interceptor/example/web/index.html
index a53f5677b57..3b03b888324 100644
--- a/packages/pointer_interceptor/pointer_interceptor/example/web/index.html
+++ b/packages/pointer_interceptor/pointer_interceptor/example/web/index.html
@@ -33,16 +33,6 @@
   <link rel="manifest" href="manifest.json">
 </head>
 <body>
-  <!-- This script installs service_worker.js to provide PWA functionality to
-       application. For more information, see:
-       https://developers.google.com/web/fundamentals/primers/service-workers -->
-  <script>
-    if ('serviceWorker' in navigator) {
-      window.addEventListener('flutter-first-frame', function () {
-        navigator.serviceWorker.register('flutter_service_worker.js');
-      });
-    }
-  </script>
-  <script src="main.dart.js" type="application/javascript"></script>
+  <script src="flutter_bootstrap.js" async></script>
 </body>
 </html>
diff --git a/packages/rfw/example/hello/web/index.html b/packages/rfw/example/hello/web/index.html
index f8a21fb04c4..cb7cb569227 100644
--- a/packages/rfw/example/hello/web/index.html
+++ b/packages/rfw/example/hello/web/index.html
@@ -36,72 +36,6 @@
   <link rel="manifest" href="manifest.json">
 </head>
 <body>
-  <!-- This script installs service_worker.js to provide PWA functionality to
-       application. For more information, see:
-       https://developers.google.com/web/fundamentals/primers/service-workers -->
-  <script>
-    var serviceWorkerVersion = null;
-    var scriptLoaded = false;
-    function loadMainDartJs() {
-      if (scriptLoaded) {
-        return;
-      }
-      scriptLoaded = true;
-      var scriptTag = document.createElement('script');
-      scriptTag.src = 'main.dart.js';
-      scriptTag.type = 'application/javascript';
-      document.body.append(scriptTag);
-    }
-
-    if ('serviceWorker' in navigator) {
-      // Service workers are supported. Use them.
-      window.addEventListener('load', function () {
-        // Wait for registration to finish before dropping the <script> tag.
-        // Otherwise, the browser will load the script multiple times,
-        // potentially different versions.
-        var serviceWorkerUrl = 'flutter_service_worker.js?v=' + serviceWorkerVersion;
-        navigator.serviceWorker.register(serviceWorkerUrl)
-          .then((reg) => {
-            function waitForActivation(serviceWorker) {
-              serviceWorker.addEventListener('statechange', () => {
-                if (serviceWorker.state == 'activated') {
-                  console.log('Installed new service worker.');
-                  loadMainDartJs();
-                }
-              });
-            }
-            if (!reg.active && (reg.installing || reg.waiting)) {
-              // No active web worker and we have installed or are installing
-              // one for the first time. Simply wait for it to activate.
-              waitForActivation(reg.installing || reg.waiting);
-            } else if (!reg.active.scriptURL.endsWith(serviceWorkerVersion)) {
-              // When the app updates the serviceWorkerVersion changes, so we
-              // need to ask the service worker to update.
-              console.log('New service worker available.');
-              reg.update();
-              waitForActivation(reg.installing);
-            } else {
-              // Existing service worker is still good.
-              console.log('Loading app from service worker.');
-              loadMainDartJs();
-            }
-          });
-
-        // If service worker doesn't succeed in a reasonable amount of time,
-        // fallback to plaint <script> tag.
-        setTimeout(() => {
-          if (!scriptLoaded) {
-            console.warn(
-              'Failed to load app from service worker. Falling back to plain <script> tag.',
-            );
-            loadMainDartJs();
-          }
-        }, 4000);
-      });
-    } else {
-      // Service workers not supported. Just drop the <script> tag.
-      loadMainDartJs();
-    }
-  </script>
+  <script src="flutter_bootstrap.js" async></script>
 </body>
 </html>
diff --git a/packages/rfw/example/local/web/index.html b/packages/rfw/example/local/web/index.html
index 6872e672fc4..aab27dd0cbb 100644
--- a/packages/rfw/example/local/web/index.html
+++ b/packages/rfw/example/local/web/index.html
@@ -36,72 +36,6 @@
   <link rel="manifest" href="manifest.json">
 </head>
 <body>
-  <!-- This script installs service_worker.js to provide PWA functionality to
-       application. For more information, see:
-       https://developers.google.com/web/fundamentals/primers/service-workers -->
-  <script>
-    var serviceWorkerVersion = null;
-    var scriptLoaded = false;
-    function loadMainDartJs() {
-      if (scriptLoaded) {
-        return;
-      }
-      scriptLoaded = true;
-      var scriptTag = document.createElement('script');
-      scriptTag.src = 'main.dart.js';
-      scriptTag.type = 'application/javascript';
-      document.body.append(scriptTag);
-    }
-
-    if ('serviceWorker' in navigator) {
-      // Service workers are supported. Use them.
-      window.addEventListener('load', function () {
-        // Wait for registration to finish before dropping the <script> tag.
-        // Otherwise, the browser will load the script multiple times,
-        // potentially different versions.
-        var serviceWorkerUrl = 'flutter_service_worker.js?v=' + serviceWorkerVersion;
-        navigator.serviceWorker.register(serviceWorkerUrl)
-          .then((reg) => {
-            function waitForActivation(serviceWorker) {
-              serviceWorker.addEventListener('statechange', () => {
-                if (serviceWorker.state == 'activated') {
-                  console.log('Installed new service worker.');
-                  loadMainDartJs();
-                }
-              });
-            }
-            if (!reg.active && (reg.installing || reg.waiting)) {
-              // No active web worker and we have installed or are installing
-              // one for the first time. Simply wait for it to activate.
-              waitForActivation(reg.installing || reg.waiting);
-            } else if (!reg.active.scriptURL.endsWith(serviceWorkerVersion)) {
-              // When the app updates the serviceWorkerVersion changes, so we
-              // need to ask the service worker to update.
-              console.log('New service worker available.');
-              reg.update();
-              waitForActivation(reg.installing);
-            } else {
-              // Existing service worker is still good.
-              console.log('Loading app from service worker.');
-              loadMainDartJs();
-            }
-          });
-
-        // If service worker doesn't succeed in a reasonable amount of time,
-        // fallback to plaint <script> tag.
-        setTimeout(() => {
-          if (!scriptLoaded) {
-            console.warn(
-              'Failed to load app from service worker. Falling back to plain <script> tag.',
-            );
-            loadMainDartJs();
-          }
-        }, 4000);
-      });
-    } else {
-      // Service workers not supported. Just drop the <script> tag.
-      loadMainDartJs();
-    }
-  </script>
+  <script src="flutter_bootstrap.js" async></script>
 </body>
 </html>
diff --git a/packages/rfw/example/remote/web/index.html b/packages/rfw/example/remote/web/index.html
index 2bcc056677a..b11392f8b6c 100644
--- a/packages/rfw/example/remote/web/index.html
+++ b/packages/rfw/example/remote/web/index.html
@@ -36,72 +36,6 @@
   <link rel="manifest" href="manifest.json">
 </head>
 <body>
-  <!-- This script installs service_worker.js to provide PWA functionality to
-       application. For more information, see:
-       https://developers.google.com/web/fundamentals/primers/service-workers -->
-  <script>
-    var serviceWorkerVersion = null;
-    var scriptLoaded = false;
-    function loadMainDartJs() {
-      if (scriptLoaded) {
-        return;
-      }
-      scriptLoaded = true;
-      var scriptTag = document.createElement('script');
-      scriptTag.src = 'main.dart.js';
-      scriptTag.type = 'application/javascript';
-      document.body.append(scriptTag);
-    }
-
-    if ('serviceWorker' in navigator) {
-      // Service workers are supported. Use them.
-      window.addEventListener('load', function () {
-        // Wait for registration to finish before dropping the <script> tag.
-        // Otherwise, the browser will load the script multiple times,
-        // potentially different versions.
-        var serviceWorkerUrl = 'flutter_service_worker.js?v=' + serviceWorkerVersion;
-        navigator.serviceWorker.register(serviceWorkerUrl)
-          .then((reg) => {
-            function waitForActivation(serviceWorker) {
-              serviceWorker.addEventListener('statechange', () => {
-                if (serviceWorker.state == 'activated') {
-                  console.log('Installed new service worker.');
-                  loadMainDartJs();
-                }
-              });
-            }
-            if (!reg.active && (reg.installing || reg.waiting)) {
-              // No active web worker and we have installed or are installing
-              // one for the first time. Simply wait for it to activate.
-              waitForActivation(reg.installing || reg.waiting);
-            } else if (!reg.active.scriptURL.endsWith(serviceWorkerVersion)) {
-              // When the app updates the serviceWorkerVersion changes, so we
-              // need to ask the service worker to update.
-              console.log('New service worker available.');
-              reg.update();
-              waitForActivation(reg.installing);
-            } else {
-              // Existing service worker is still good.
-              console.log('Loading app from service worker.');
-              loadMainDartJs();
-            }
-          });
-
-        // If service worker doesn't succeed in a reasonable amount of time,
-        // fallback to plaint <script> tag.
-        setTimeout(() => {
-          if (!scriptLoaded) {
-            console.warn(
-              'Failed to load app from service worker. Falling back to plain <script> tag.',
-            );
-            loadMainDartJs();
-          }
-        }, 4000);
-      });
-    } else {
-      // Service workers not supported. Just drop the <script> tag.
-      loadMainDartJs();
-    }
-  </script>
+  <script src="flutter_bootstrap.js" async></script>
 </body>
 </html>
diff --git a/packages/shared_preferences/shared_preferences/example/web/index.html b/packages/shared_preferences/shared_preferences/example/web/index.html
index 7fb138cc90f..956b11f49f7 100644
--- a/packages/shared_preferences/shared_preferences/example/web/index.html
+++ b/packages/shared_preferences/shared_preferences/example/web/index.html
@@ -8,6 +8,6 @@
   <title>example</title>
 </head>
 <body>
-  <script src="main.dart.js" type="application/javascript"></script>
+  <script src="flutter_bootstrap.js" async></script>
 </body>
 </html>
diff --git a/packages/shared_preferences/shared_preferences_web/example/web/index.html b/packages/shared_preferences/shared_preferences_web/example/web/index.html
index 7fb138cc90f..956b11f49f7 100644
--- a/packages/shared_preferences/shared_preferences_web/example/web/index.html
+++ b/packages/shared_preferences/shared_preferences_web/example/web/index.html
@@ -8,6 +8,6 @@
   <title>example</title>
 </head>
 <body>
-  <script src="main.dart.js" type="application/javascript"></script>
+  <script src="flutter_bootstrap.js" async></script>
 </body>
 </html>
diff --git a/packages/url_launcher/url_launcher/example/web/index.html b/packages/url_launcher/url_launcher/example/web/index.html
index c3d22621fc4..67c90440179 100644
--- a/packages/url_launcher/url_launcher/example/web/index.html
+++ b/packages/url_launcher/url_launcher/example/web/index.html
@@ -21,16 +21,6 @@
   <link rel="manifest" href="manifest.json">
 </head>
 <body>
-  <!-- This script installs service_worker.js to provide PWA functionality to
-       application. For more information, see:
-       https://developers.google.com/web/fundamentals/primers/service-workers -->
-  <script>
-    if ('serviceWorker' in navigator) {
-      window.addEventListener('load', function () {
-        navigator.serviceWorker.register('flutter_service_worker.js');
-      });
-    }
-  </script>
-  <script src="main.dart.js" type="application/javascript"></script>
+  <script src="flutter_bootstrap.js" async></script>
 </body>
 </html>
diff --git a/packages/url_launcher/url_launcher_web/example/web/index.html b/packages/url_launcher/url_launcher_web/example/web/index.html
index dc9f89762ae..7836d612c4e 100644
--- a/packages/url_launcher/url_launcher_web/example/web/index.html
+++ b/packages/url_launcher/url_launcher_web/example/web/index.html
@@ -7,6 +7,6 @@
         <title>Browser Tests</title>
     </head>
     <body>
-        <script src="main.dart.js"></script>
+        <script src="flutter_bootstrap.js" async></script>
     </body>
 </html>
diff --git a/packages/video_player/video_player/example/web/index.html b/packages/video_player/video_player/example/web/index.html
index 0df50f1192d..8030c29471d 100644
--- a/packages/video_player/video_player/example/web/index.html
+++ b/packages/video_player/video_player/example/web/index.html
@@ -8,6 +8,6 @@
   <title>video_player web example</title>
 </head>
 <body>
-  <script src="main.dart.js" type="application/javascript"></script>
+  <script src="flutter_bootstrap.js" async></script>
 </body>
 </html>
diff --git a/packages/video_player/video_player_web/example/web/index.html b/packages/video_player/video_player_web/example/web/index.html
index 7fb138cc90f..956b11f49f7 100644
--- a/packages/video_player/video_player_web/example/web/index.html
+++ b/packages/video_player/video_player_web/example/web/index.html
@@ -8,6 +8,6 @@
   <title>example</title>
 </head>
 <body>
-  <script src="main.dart.js" type="application/javascript"></script>
+  <script src="flutter_bootstrap.js" async></script>
 </body>
 </html>
