diff --git a/packages/angular_devkit/build_angular/src/webpack/plugins/karma/karma-context.html b/packages/angular_devkit/build_angular/src/webpack/plugins/karma/karma-context.html
index 2b3902b5848d..64139997b25a 100644
--- a/packages/angular_devkit/build_angular/src/webpack/plugins/karma/karma-context.html
+++ b/packages/angular_devkit/build_angular/src/webpack/plugins/karma/karma-context.html
@@ -30,8 +30,8 @@
       // All served files with the latest timestamps
       %MAPPINGS%
     </script>
-    <script src="_karma_webpack_/runtime.js" crossorigin="anonymous" type="module"></script>
-    <script src="_karma_webpack_/polyfills.js" crossorigin="anonymous" type="module"></script>
+    <script src="_karma_webpack_/runtime.js" crossorigin="anonymous"></script>
+    <script src="_karma_webpack_/polyfills.js" crossorigin="anonymous"></script>
     <!-- Dynamically replaced with <script> tags -->
     %SCRIPTS%
     <script src="_karma_webpack_/scripts.js" crossorigin="anonymous" defer></script>
diff --git a/packages/angular_devkit/build_angular/src/webpack/plugins/karma/karma-debug.html b/packages/angular_devkit/build_angular/src/webpack/plugins/karma/karma-debug.html
index 0f13c288aa6a..f348daf64352 100644
--- a/packages/angular_devkit/build_angular/src/webpack/plugins/karma/karma-debug.html
+++ b/packages/angular_devkit/build_angular/src/webpack/plugins/karma/karma-debug.html
@@ -32,8 +32,8 @@
       // All served files with the latest timestamps
       %MAPPINGS%
     </script>
-    <script src="_karma_webpack_/runtime.js" crossorigin="anonymous" type="module"></script>
-    <script src="_karma_webpack_/polyfills.js" crossorigin="anonymous" type="module"></script>
+    <script src="_karma_webpack_/runtime.js" crossorigin="anonymous"></script>
+    <script src="_karma_webpack_/polyfills.js" crossorigin="anonymous"></script>
     <!-- Dynamically replaced with <script> tags -->
     %SCRIPTS%
     <script src="_karma_webpack_/scripts.js" crossorigin="anonymous" defer></script>
diff --git a/tests/legacy-cli/e2e/tests/test/test-jasmine-clock.ts b/tests/legacy-cli/e2e/tests/test/test-jasmine-clock.ts
new file mode 100644
index 000000000000..fa24baaf5b27
--- /dev/null
+++ b/tests/legacy-cli/e2e/tests/test/test-jasmine-clock.ts
@@ -0,0 +1,37 @@
+import { ng } from '../../utils/process';
+import { writeFile } from '../../utils/fs';
+
+export default async function () {
+  await writeFile(
+    'src/app/app.component.spec.ts',
+    `
+  import { TestBed } from '@angular/core/testing';
+  import { RouterTestingModule } from '@angular/router/testing';
+  import { AppComponent } from './app.component';
+
+  describe('AppComponent', () => {
+    beforeAll(() => {
+      jasmine.clock().install();
+    });
+
+    afterAll(() => {
+      jasmine.clock().uninstall();
+    });
+
+    beforeEach(async () => {
+      await TestBed.configureTestingModule({
+        imports: [RouterTestingModule],
+        declarations: [AppComponent],
+      }).compileComponents();
+    });
+
+    it('should create the app', () => {
+      const fixture = TestBed.createComponent(AppComponent);
+      expect(fixture.componentInstance).toBeTruthy();
+    });
+  });
+  `,
+  );
+
+  await ng('test', '--watch=false');
+}