'Angular 13 and Karma: ReferenceError: global is not defined

i know there are many posts on this subject but nothing has helped so far. Such things like (window as any).global = window in polyfills.ts didn't work

Angular: v13.3
Webpack: v4.0.2
Webpack CLI: v4.9.2
Jasmine core: v3.6.0

Excerpt from the package.json:

    "karma": "^6.3.9",
    "karma-chrome-launcher": "3.1.1",
    "karma-cli": "2.0.0",
    "karma-coverage": "^2.2.0",
    "karma-firefox-launcher": "1.1.0",
    "karma-jasmine": "4.0.0",
    "karma-jasmine-html-reporter": "1.5.0",
    "karma-junit-reporter": "1.2.0",
    "karma-mocha-reporter": "2.2.5",
    "karma-teamcity-reporter": "1.1.0",
    "karma-webpack": "4.0.2",

Error message:

Firefox 88.0 (Ubuntu 0.0.0) ERROR
  An error was thrown in afterAll
  ReferenceError: global is not defined
  22161@http://localhost:9876/_karma_webpack_/vendor.js:100738:25
  __webpack_require__@http://localhost:9876/_karma_webpack_/runtime.js:23:42
  55801@http://localhost:9876/_karma_webpack_/vendor.js:100494:38
  __webpack_require__@http://localhost:9876/_karma_webpack_/runtime.js:23:42
  54603@http://localhost:9876/_karma_webpack_/vendor.js:102262:36
  __webpack_require__@http://localhost:9876/_karma_webpack_/runtime.js:23:42
  48370@http://localhost:9876/_karma_webpack_/vendor.js:152925:84
  __webpack_require__@http://localhost:9876/_karma_webpack_/runtime.js:23:42
  32168@http://localhost:9876/_karma_webpack_/vendor.js:187:89
  __webpack_require__@http://localhost:9876/_karma_webpack_/runtime.js:23:42
  21391@http://localhost:9876/_karma_webpack_/main.js:6289:94
  __webpack_require__@http://localhost:9876/_karma_webpack_/runtime.js:23:42
  66820@http://localhost:9876/_karma_webpack_/main.js:6200:102
  __webpack_require__@http://localhost:9876/_karma_webpack_/runtime.js:23:42
  webpackContext@http://localhost:9876/_karma_webpack_/main.js:172720:9
  10116@http://localhost:9876/_karma_webpack_/main.js:171069:16
  __webpack_require__@http://localhost:9876/_karma_webpack_/runtime.js:23:42
  __webpack_exec__@http://localhost:9876/_karma_webpack_/main.js:173796:67
  @http://localhost:9876/_karma_webpack_/main.js:173797:70
  __webpack_require__.O@http://localhost:9876/_karma_webpack_/runtime.js:60:23
  @http://localhost:9876/_karma_webpack_/main.js:173798:56
  webpackJsonpCallback@http://localhost:9876/_karma_webpack_/runtime.js:167:46
  @http://localhost:9876/_karma_webpack_/main.js:1:65

It worked with Angular v12, but not with Angular v13.

Is more information needed? Has someone any idea?

Thanks in advance and regards

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Solution 1:^[1]

Here's the solution that worked for me. I created a polyfills.js for my project and included it using the files property in karma.conf.js.

In my case I couldn't insert a polyfills.ts in angular.json because this project is built using ng-packagr, which doesn't support polyfills by design.

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Solution 1	HankScorpio

'Angular 13 and Karma: ReferenceError: global is not defined

Solution 1:[1]

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Solution 1:^[1]