diff --git a/goldens/public-api/angular_devkit/build_angular/index.md b/goldens/public-api/angular_devkit/build_angular/index.md
index a8f748bc8504..e7a6a890e1a1 100644
--- a/goldens/public-api/angular_devkit/build_angular/index.md
+++ b/goldens/public-api/angular_devkit/build_angular/index.md
@@ -53,7 +53,7 @@ export interface BrowserBuilderOptions {
     outputHashing?: OutputHashing;
     outputPath: string;
     poll?: number;
-    polyfills?: string;
+    polyfills?: Polyfills;
     preserveSymlinks?: boolean;
     progress?: boolean;
     resourcesOutputPath?: string;
@@ -180,7 +180,7 @@ export interface KarmaBuilderOptions {
     karmaConfig: string;
     main: string;
     poll?: number;
-    polyfills?: string;
+    polyfills?: Polyfills_2;
     preserveSymlinks?: boolean;
     progress?: boolean;
     reporters?: string[];
diff --git a/packages/angular_devkit/build_angular/src/builders/browser-esbuild/options.ts b/packages/angular_devkit/build_angular/src/builders/browser-esbuild/options.ts
index 3727079d833c..55433039db7c 100644
--- a/packages/angular_devkit/build_angular/src/builders/browser-esbuild/options.ts
+++ b/packages/angular_devkit/build_angular/src/builders/browser-esbuild/options.ts
@@ -9,6 +9,7 @@
 import { BuilderContext } from '@angular-devkit/architect';
 import * as path from 'path';
 import { normalizeAssetPatterns, normalizeOptimization, normalizeSourceMaps } from '../../utils';
+import { normalizePolyfills } from '../../utils/normalize-polyfills';
 import { Schema as BrowserBuilderOptions, OutputHashing } from '../browser/schema';
 
 /**
@@ -33,10 +34,21 @@ export async function normalizeOptions(
     workspaceRoot,
     (projectMetadata.sourceRoot as string | undefined) ?? 'src',
   );
-
   // Normalize options
   const mainEntryPoint = path.join(workspaceRoot, options.main);
-  const polyfillsEntryPoint = options.polyfills && path.join(workspaceRoot, options.polyfills);
+
+  // Currently esbuild do not support multiple files per entry-point
+  const [polyfillsEntryPoint, ...remainingPolyfills] = normalizePolyfills(
+    options.polyfills,
+    workspaceRoot,
+  );
+
+  if (remainingPolyfills.length) {
+    context.logger.warn(
+      `The 'polyfills' option currently does not support multiple entries by this experimental builder. The first entry will be used.`,
+    );
+  }
+
   const tsconfig = path.join(workspaceRoot, options.tsConfig);
   const outputPath = path.join(workspaceRoot, options.outputPath);
   const optimizationOptions = normalizeOptimization(options.optimization);
diff --git a/packages/angular_devkit/build_angular/src/builders/browser-esbuild/schema.json b/packages/angular_devkit/build_angular/src/builders/browser-esbuild/schema.json
index ce8d5d1d510a..ea0ec43e5598 100644
--- a/packages/angular_devkit/build_angular/src/builders/browser-esbuild/schema.json
+++ b/packages/angular_devkit/build_angular/src/builders/browser-esbuild/schema.json
@@ -17,8 +17,22 @@
       "description": "The full path for the main entry point to the app, relative to the current workspace."
     },
     "polyfills": {
-      "type": "string",
-      "description": "The full path for the polyfills file, relative to the current workspace."
+      "description": "Polyfills to be included in the build.",
+      "oneOf": [
+        {
+          "type": "array",
+          "description": "A list of polyfills to include in the build. Can be a full path for a file, relative to the current workspace or module specifier. Example: 'zone.js'.",
+          "items": {
+            "type": "string",
+            "uniqueItems": true
+          },
+          "default": []
+        },
+        {
+          "type": "string",
+          "description": "The full path for the polyfills file, relative to the current workspace or a module specifier. Example: 'zone.js'."
+        }
+      ]
     },
     "tsConfig": {
       "type": "string",
diff --git a/packages/angular_devkit/build_angular/src/builders/browser/schema.json b/packages/angular_devkit/build_angular/src/builders/browser/schema.json
index 35168f55a59d..12c9d6792afe 100644
--- a/packages/angular_devkit/build_angular/src/builders/browser/schema.json
+++ b/packages/angular_devkit/build_angular/src/builders/browser/schema.json
@@ -17,8 +17,22 @@
       "description": "The full path for the main entry point to the app, relative to the current workspace."
     },
     "polyfills": {
-      "type": "string",
-      "description": "The full path for the polyfills file, relative to the current workspace."
+      "description": "Polyfills to be included in the build.",
+      "oneOf": [
+        {
+          "type": "array",
+          "description": "A list of polyfills to include in the build. Can be a full path for a file, relative to the current workspace or module specifier. Example: 'zone.js'.",
+          "items": {
+            "type": "string",
+            "uniqueItems": true
+          },
+          "default": []
+        },
+        {
+          "type": "string",
+          "description": "The full path for the polyfills file, relative to the current workspace or a module specifier. Example: 'zone.js'."
+        }
+      ]
     },
     "tsConfig": {
       "type": "string",
diff --git a/packages/angular_devkit/build_angular/src/builders/browser/tests/options/polyfills_spec.ts b/packages/angular_devkit/build_angular/src/builders/browser/tests/options/polyfills_spec.ts
index e47b22531437..fbf3e5ad850a 100644
--- a/packages/angular_devkit/build_angular/src/builders/browser/tests/options/polyfills_spec.ts
+++ b/packages/angular_devkit/build_angular/src/builders/browser/tests/options/polyfills_spec.ts
@@ -54,5 +54,16 @@ describeBuilder(buildWebpackBrowser, BROWSER_BUILDER_INFO, (harness) => {
 
       harness.expectFile('dist/polyfills.js').toNotExist();
     });
+
+    it('resolves module specifiers in array', async () => {
+      harness.useTarget('build', {
+        ...BASE_OPTIONS,
+        polyfills: ['zone.js', 'zone.js/testing'],
+      });
+
+      const { result } = await harness.executeOnce();
+      expect(result?.success).toBeTrue();
+      harness.expectFile('dist/polyfills.js').toExist();
+    });
   });
 });
diff --git a/packages/angular_devkit/build_angular/src/builders/karma/schema.json b/packages/angular_devkit/build_angular/src/builders/karma/schema.json
index b5e44c9dace5..35a9de5054ee 100644
--- a/packages/angular_devkit/build_angular/src/builders/karma/schema.json
+++ b/packages/angular_devkit/build_angular/src/builders/karma/schema.json
@@ -17,8 +17,22 @@
       "description": "The name of the Karma configuration file."
     },
     "polyfills": {
-      "type": "string",
-      "description": "The name of the polyfills file."
+      "description": "Polyfills to be included in the build.",
+      "oneOf": [
+        {
+          "type": "array",
+          "description": "A list of polyfills to include in the build. Can be a full path for a file, relative to the current workspace or module specifier. Example: 'zone.js'.",
+          "items": {
+            "type": "string",
+            "uniqueItems": true
+          },
+          "default": []
+        },
+        {
+          "type": "string",
+          "description": "The full path for the polyfills file, relative to the current workspace or a module specifier. Example: 'zone.js'."
+        }
+      ]
     },
     "assets": {
       "type": "array",
diff --git a/packages/angular_devkit/build_angular/src/utils/build-options.ts b/packages/angular_devkit/build_angular/src/utils/build-options.ts
index 49e1212bd2c3..cacfd5746da2 100644
--- a/packages/angular_devkit/build_angular/src/utils/build-options.ts
+++ b/packages/angular_devkit/build_angular/src/utils/build-options.ts
@@ -58,7 +58,7 @@ export interface BuildOptions {
   statsJson: boolean;
   hmr?: boolean;
   main: string;
-  polyfills?: string;
+  polyfills: string[];
   budgets: Budget[];
   assets: AssetPatternClass[];
   scripts: ScriptElement[];
diff --git a/packages/angular_devkit/build_angular/src/utils/normalize-builder-schema.ts b/packages/angular_devkit/build_angular/src/utils/normalize-builder-schema.ts
index 138b25bc4aaa..43189d3a370c 100644
--- a/packages/angular_devkit/build_angular/src/utils/normalize-builder-schema.ts
+++ b/packages/angular_devkit/build_angular/src/utils/normalize-builder-schema.ts
@@ -20,6 +20,7 @@ import {
   normalizeFileReplacements,
 } from './normalize-file-replacements';
 import { NormalizedOptimizationOptions, normalizeOptimization } from './normalize-optimization';
+import { normalizePolyfills } from './normalize-polyfills';
 import { normalizeSourceMaps } from './normalize-source-maps';
 import { getSupportedBrowsers } from './supported-browsers';
 
@@ -32,6 +33,7 @@ export type NormalizedBrowserBuilderSchema = BrowserBuilderSchema &
     assets: AssetPatternClass[];
     fileReplacements: NormalizedFileReplacement[];
     optimization: NormalizedOptimizationOptions;
+    polyfills: string[];
   };
 
 export function normalizeBrowserSchema(
@@ -42,8 +44,6 @@ export function normalizeBrowserSchema(
   metadata: json.JsonObject,
   logger: logging.LoggerApi,
 ): NormalizedBrowserBuilderSchema {
-  const normalizedSourceMapOptions = normalizeSourceMaps(options.sourceMap || false);
-
   return {
     ...options,
     cache: normalizeCacheOptions(metadata, workspaceRoot),
@@ -55,7 +55,8 @@ export function normalizeBrowserSchema(
     ),
     fileReplacements: normalizeFileReplacements(options.fileReplacements || [], workspaceRoot),
     optimization: normalizeOptimization(options.optimization),
-    sourceMap: normalizedSourceMapOptions,
+    sourceMap: normalizeSourceMaps(options.sourceMap || false),
+    polyfills: normalizePolyfills(options.polyfills, workspaceRoot),
     preserveSymlinks:
       options.preserveSymlinks === undefined
         ? process.execArgv.includes('--preserve-symlinks')
diff --git a/packages/angular_devkit/build_angular/src/utils/normalize-polyfills.ts b/packages/angular_devkit/build_angular/src/utils/normalize-polyfills.ts
new file mode 100644
index 000000000000..8eb75745b0b9
--- /dev/null
+++ b/packages/angular_devkit/build_angular/src/utils/normalize-polyfills.ts
@@ -0,0 +1,28 @@
+/**
+ * @license
+ * Copyright Google LLC All Rights Reserved.
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://angular.io/license
+ */
+
+import { existsSync } from 'fs';
+import { resolve } from 'path';
+
+export function normalizePolyfills(
+  polyfills: string[] | string | undefined,
+  root: string,
+): string[] {
+  if (!polyfills) {
+    return [];
+  }
+
+  const polyfillsList = Array.isArray(polyfills) ? polyfills : [polyfills];
+
+  return polyfillsList.map((p) => {
+    const resolvedPath = resolve(root, p);
+
+    // If file doesn't exist, let the bundle resolve it using node module resolution.
+    return existsSync(resolvedPath) ? resolvedPath : p;
+  });
+}
diff --git a/packages/angular_devkit/build_angular/src/webpack/configs/common.ts b/packages/angular_devkit/build_angular/src/webpack/configs/common.ts
index 50a8ba90c61f..98f5dd550c50 100644
--- a/packages/angular_devkit/build_angular/src/webpack/configs/common.ts
+++ b/packages/angular_devkit/build_angular/src/webpack/configs/common.ts
@@ -77,7 +77,7 @@ export async function getCommonConfig(wco: WebpackConfigOptions): Promise<Config
   const isPlatformServer = buildOptions.platform === 'server';
   const extraPlugins: { apply(compiler: Compiler): void }[] = [];
   const extraRules: RuleSetRule[] = [];
-  const entryPoints: { [key: string]: [string, ...string[]] } = {};
+  const entryPoints: Configuration['entry'] = {};
 
   // Load ESM `@angular/compiler-cli` using the TypeScript dynamic import workaround.
   // Once TypeScript provides support for keeping the dynamic import this workaround can be
@@ -105,13 +105,32 @@ export async function getCommonConfig(wco: WebpackConfigOptions): Promise<Config
     extraPlugins.push(new ContextReplacementPlugin(/@?hapi|express[\\/]/));
   }
 
-  if (!isPlatformServer) {
-    if (buildOptions.polyfills) {
-      const projectPolyfills = path.resolve(root, buildOptions.polyfills);
-      if (entryPoints['polyfills']) {
-        entryPoints['polyfills'].push(projectPolyfills);
+  if (polyfills?.length) {
+    // `zone.js/testing` is a **special** polyfill because when not imported in the main it fails with the below errors:
+    // `Error: Expected to be running in 'ProxyZone', but it was not found.`
+    // This was also the reason why previously it was imported in `test.ts` as the first module.
+    // From Jia li:
+    // This is because the jasmine functions such as beforeEach/it will not be patched by zone.js since
+    // jasmine will not be loaded yet, so the ProxyZone will not be there. We have to load zone-testing.js after
+    // jasmine is ready.
+    // We could force loading 'zone.js/testing' prior to jasmine by changing the order of scripts in 'karma-context.html'.
+    // But this has it's own problems as zone.js needs to be loaded prior to jasmine due to patching of timing functions
+    // See: https://github.com/jasmine/jasmine/issues/1944
+    // Thus the correct order is zone.js -> jasmine -> zone.js/testing.
+    const zoneTestingEntryPoint = 'zone.js/testing';
+    const polyfillsExludingZoneTesting = polyfills.filter((p) => p !== zoneTestingEntryPoint);
+
+    if (Array.isArray(entryPoints['polyfills'])) {
+      entryPoints['polyfills'].push(...polyfillsExludingZoneTesting);
+    } else {
+      entryPoints['polyfills'] = polyfillsExludingZoneTesting;
+    }
+
+    if (polyfillsExludingZoneTesting.length !== polyfills.length) {
+      if (Array.isArray(entryPoints['main'])) {
+        entryPoints['main'].unshift(zoneTestingEntryPoint);
       } else {
-        entryPoints['polyfills'] = [projectPolyfills];
+        entryPoints['main'] = [zoneTestingEntryPoint, entryPoints['main'] as string];
       }
     }
   }
diff --git a/packages/schematics/angular/application/files/src/polyfills.ts.template b/packages/schematics/angular/application/files/src/polyfills.ts.template
deleted file mode 100644
index 429bb9ef2d34..000000000000
--- a/packages/schematics/angular/application/files/src/polyfills.ts.template
+++ /dev/null
@@ -1,53 +0,0 @@
-/**
- * This file includes polyfills needed by Angular and is loaded before the app.
- * You can add your own extra polyfills to this file.
- *
- * This file is divided into 2 sections:
- *   1. Browser polyfills. These are applied before loading ZoneJS and are sorted by browsers.
- *   2. Application imports. Files imported after ZoneJS that should be loaded before your main
- *      file.
- *
- * The current setup is for so-called "evergreen" browsers; the last versions of browsers that
- * automatically update themselves. This includes recent versions of Safari, Chrome (including
- * Opera), Edge on the desktop, and iOS and Chrome on mobile.
- *
- * Learn more in https://angular.io/guide/browser-support
- */
-
-/***************************************************************************************************
- * BROWSER POLYFILLS
- */
-
-/**
- * By default, zone.js will patch all possible macroTask and DomEvents
- * user can disable parts of macroTask/DomEvents patch by setting following flags
- * because those flags need to be set before `zone.js` being loaded, and webpack
- * will put import in the top of bundle, so user need to create a separate file
- * in this directory (for example: zone-flags.ts), and put the following flags
- * into that file, and then add the following code before importing zone.js.
- * import './zone-flags';
- *
- * The flags allowed in zone-flags.ts are listed here.
- *
- * The following flags will work for all browsers.
- *
- * (window as any).__Zone_disable_requestAnimationFrame = true; // disable patch requestAnimationFrame
- * (window as any).__Zone_disable_on_property = true; // disable patch onProperty such as onclick
- * (window as any).__zone_symbol__UNPATCHED_EVENTS = ['scroll', 'mousemove']; // disable patch specified eventNames
- *
- *  in IE/Edge developer tools, the addEventListener will also be wrapped by zone.js
- *  with the following flag, it will bypass `zone.js` patch for IE/Edge
- *
- *  (window as any).__Zone_enable_cross_context_check = true;
- *
- */
-
-/***************************************************************************************************
- * Zone JS is required by default for Angular itself.
- */
-import 'zone.js';  // Included with Angular CLI.
-
-
-/***************************************************************************************************
- * APPLICATION IMPORTS
- */
diff --git a/packages/schematics/angular/application/files/src/test.ts.template b/packages/schematics/angular/application/files/src/test.ts.template
index 863549a71308..0e689016906e 100644
--- a/packages/schematics/angular/application/files/src/test.ts.template
+++ b/packages/schematics/angular/application/files/src/test.ts.template
@@ -1,6 +1,4 @@
 // This file is required by karma.conf.js and loads recursively all the .spec and framework files
-
-import 'zone.js/testing';
 import { getTestBed } from '@angular/core/testing';
 import {
   BrowserDynamicTestingModule,
diff --git a/packages/schematics/angular/application/files/tsconfig.app.json.template b/packages/schematics/angular/application/files/tsconfig.app.json.template
index 1966d893bf6d..7e2267cbe2d5 100644
--- a/packages/schematics/angular/application/files/tsconfig.app.json.template
+++ b/packages/schematics/angular/application/files/tsconfig.app.json.template
@@ -6,8 +6,7 @@
     "types": []
   },
   "files": [
-    "src/main.ts",
-    "src/polyfills.ts"
+    "src/main.ts"
   ],
   "include": [
     "src/**/*.d.ts"
diff --git a/packages/schematics/angular/application/files/tsconfig.spec.json.template b/packages/schematics/angular/application/files/tsconfig.spec.json.template
index 0e856e624157..c9c241170103 100644
--- a/packages/schematics/angular/application/files/tsconfig.spec.json.template
+++ b/packages/schematics/angular/application/files/tsconfig.spec.json.template
@@ -8,8 +8,7 @@
     ]
   },
   "files": [
-    "src/test.ts",
-    "src/polyfills.ts"
+    "src/test.ts"
   ],
   "include": [
     "src/**/*.spec.ts",
diff --git a/packages/schematics/angular/application/index.ts b/packages/schematics/angular/application/index.ts
index 88485f9cc3ff..e804269d4545 100644
--- a/packages/schematics/angular/application/index.ts
+++ b/packages/schematics/angular/application/index.ts
@@ -158,7 +158,7 @@ function addAppToWorkspaceFile(
           outputPath: `dist/${folderName}`,
           index: `${sourceRoot}/index.html`,
           main: `${sourceRoot}/main.ts`,
-          polyfills: `${sourceRoot}/polyfills.ts`,
+          polyfills: ['zone.js'],
           tsConfig: `${projectRoot}tsconfig.app.json`,
           inlineStyleLanguage,
           assets: [`${sourceRoot}/favicon.ico`, `${sourceRoot}/assets`],
@@ -211,7 +211,7 @@ function addAppToWorkspaceFile(
             builder: Builders.Karma,
             options: {
               main: `${sourceRoot}/test.ts`,
-              polyfills: `${sourceRoot}/polyfills.ts`,
+              polyfills: ['zone.js', 'zone.js/testing'],
               tsConfig: `${projectRoot}tsconfig.spec.json`,
               karmaConfig: `${projectRoot}karma.conf.js`,
               inlineStyleLanguage,
diff --git a/packages/schematics/angular/application/index_spec.ts b/packages/schematics/angular/application/index_spec.ts
index 0e1bfc6f0665..7055f485e7ca 100644
--- a/packages/schematics/angular/application/index_spec.ts
+++ b/packages/schematics/angular/application/index_spec.ts
@@ -60,7 +60,6 @@ describe('Application Schematic', () => {
         '/projects/foo/src/favicon.ico',
         '/projects/foo/src/index.html',
         '/projects/foo/src/main.ts',
-        '/projects/foo/src/polyfills.ts',
         '/projects/foo/src/styles.css',
         '/projects/foo/src/test.ts',
         '/projects/foo/src/app/app.module.ts',
@@ -157,7 +156,7 @@ describe('Application Schematic', () => {
       .runSchematicAsync('application', defaultOptions, workspaceTree)
       .toPromise();
     const { files, extends: _extends } = readJsonFile(tree, '/projects/foo/tsconfig.app.json');
-    expect(files).toEqual(['src/main.ts', 'src/polyfills.ts']);
+    expect(files).toEqual(['src/main.ts']);
     expect(_extends).toBe('../../tsconfig.json');
   });
 
@@ -166,7 +165,7 @@ describe('Application Schematic', () => {
       .runSchematicAsync('application', defaultOptions, workspaceTree)
       .toPromise();
     const { files, extends: _extends } = readJsonFile(tree, '/projects/foo/tsconfig.spec.json');
-    expect(files).toEqual(['src/test.ts', 'src/polyfills.ts']);
+    expect(files).toEqual(['src/test.ts']);
     expect(_extends).toBe('../../tsconfig.json');
   });
 
@@ -270,7 +269,6 @@ describe('Application Schematic', () => {
         '/projects/foo/src/favicon.ico',
         '/projects/foo/src/index.html',
         '/projects/foo/src/main.ts',
-        '/projects/foo/src/polyfills.ts',
         '/projects/foo/src/styles.css',
         '/projects/foo/src/app/app.module.ts',
         '/projects/foo/src/app/app.component.ts',
@@ -300,7 +298,6 @@ describe('Application Schematic', () => {
         '/projects/foo/src/favicon.ico',
         '/projects/foo/src/index.html',
         '/projects/foo/src/main.ts',
-        '/projects/foo/src/polyfills.ts',
         '/projects/foo/src/styles.css',
         '/projects/foo/src/app/app.module.ts',
         '/projects/foo/src/app/app.component.css',
@@ -331,7 +328,6 @@ describe('Application Schematic', () => {
         '/projects/foo/src/favicon.ico',
         '/projects/foo/src/index.html',
         '/projects/foo/src/main.ts',
-        '/projects/foo/src/polyfills.ts',
         '/projects/foo/src/styles.css',
         '/projects/foo/src/app/app.module.ts',
         '/projects/foo/src/app/app.component.html',
@@ -413,7 +409,6 @@ describe('Application Schematic', () => {
           '/src/favicon.ico',
           '/src/index.html',
           '/src/main.ts',
-          '/src/polyfills.ts',
           '/src/styles.css',
           '/src/test.ts',
           '/src/app/app.module.ts',
@@ -437,7 +432,7 @@ describe('Application Schematic', () => {
       const buildOpt = prj.architect.build.options;
       expect(buildOpt.index).toEqual('src/index.html');
       expect(buildOpt.main).toEqual('src/main.ts');
-      expect(buildOpt.polyfills).toEqual('src/polyfills.ts');
+      expect(buildOpt.polyfills).toEqual(['zone.js']);
       expect(buildOpt.tsConfig).toEqual('tsconfig.app.json');
 
       const testOpt = prj.architect.test.options;
@@ -515,7 +510,7 @@ describe('Application Schematic', () => {
       expect(appTsConfig.extends).toEqual('./tsconfig.json');
       const specTsConfig = readJsonFile(tree, '/tsconfig.spec.json');
       expect(specTsConfig.extends).toEqual('./tsconfig.json');
-      expect(specTsConfig.files).toEqual(['src/test.ts', 'src/polyfills.ts']);
+      expect(specTsConfig.files).toEqual(['src/test.ts']);
     });
 
     it(`should create correct paths when 'newProjectRoot' is blank`, async () => {
@@ -532,7 +527,7 @@ describe('Application Schematic', () => {
       const buildOpt = project.architect.build.options;
       expect(buildOpt.index).toEqual('foo/src/index.html');
       expect(buildOpt.main).toEqual('foo/src/main.ts');
-      expect(buildOpt.polyfills).toEqual('foo/src/polyfills.ts');
+      expect(buildOpt.polyfills).toEqual(['zone.js']);
       expect(buildOpt.tsConfig).toEqual('foo/tsconfig.app.json');
 
       const appTsConfig = readJsonFile(tree, '/foo/tsconfig.app.json');
diff --git a/packages/schematics/angular/library/files/src/test.ts.template b/packages/schematics/angular/library/files/src/test.ts.template
index 406f37d5a7a5..0e689016906e 100644
--- a/packages/schematics/angular/library/files/src/test.ts.template
+++ b/packages/schematics/angular/library/files/src/test.ts.template
@@ -1,7 +1,4 @@
 // This file is required by karma.conf.js and loads recursively all the .spec and framework files
-
-import 'zone.js';
-import 'zone.js/testing';
 import { getTestBed } from '@angular/core/testing';
 import {
   BrowserDynamicTestingModule,
diff --git a/packages/schematics/angular/library/index.ts b/packages/schematics/angular/library/index.ts
index a6959bdf70cb..69524593bcc2 100644
--- a/packages/schematics/angular/library/index.ts
+++ b/packages/schematics/angular/library/index.ts
@@ -110,6 +110,7 @@ function addLibToWorkspaceFile(
           options: {
             main: `${projectRoot}/src/test.ts`,
             tsConfig: `${projectRoot}/tsconfig.spec.json`,
+            polyfills: ['zone.js', 'zone.js/testing'],
             karmaConfig: `${projectRoot}/karma.conf.js`,
           },
         },
diff --git a/tests/legacy-cli/e2e/tests/build/disk-cache-purge.ts b/tests/legacy-cli/e2e/tests/build/disk-cache-purge.ts
index 5cc3b6d0606c..bba2ad7e826b 100644
--- a/tests/legacy-cli/e2e/tests/build/disk-cache-purge.ts
+++ b/tests/legacy-cli/e2e/tests/build/disk-cache-purge.ts
@@ -9,7 +9,6 @@ export default async function () {
 
   // No need to include all applications code to verify disk cache existence.
   await writeFile('src/main.ts', 'console.log(1);');
-  await writeFile('src/polyfills.ts', 'console.log(1);');
 
   // Enable cache for all environments
   await updateJsonFile('angular.json', (config) => {
diff --git a/tests/legacy-cli/e2e/tests/build/disk-cache.ts b/tests/legacy-cli/e2e/tests/build/disk-cache.ts
index 559313163187..1873905646ca 100644
--- a/tests/legacy-cli/e2e/tests/build/disk-cache.ts
+++ b/tests/legacy-cli/e2e/tests/build/disk-cache.ts
@@ -10,7 +10,6 @@ export default async function () {
 
   // No need to include all applications code to verify disk cache existence.
   await writeFile('src/main.ts', 'console.log(1);');
-  await writeFile('src/polyfills.ts', 'console.log(1);');
 
   try {
     // Should be enabled by default.