Jest fails with `window is not defiend` in cre-bus-fra

[chaobidomain]

Please find attached the stack traces:

Summary of all failing tests
FAIL ClientApp/components/details/PropertyListingDetails.test.tsx
● render PropertyListingDetails

ReferenceError: window is not defined

  100 |   componentDidMount = () => {
  101 |     this.unsubscribe = this.experiment.subscribe(() => this.forceUpdate());
> 102 |     this.experiment.activate();
      |                     ^
  103 |   };
  104 |   componentWillUnmount = () => {
  105 |     this.unsubscribe();

  at Optimize.<anonymous> (node_modules/react-experimentify/dist/optimize.js:48:5)
  at Optimize.addEventListener (node_modules/react-experimentify/node_modules/lodash/before.js:31:21)
  at Optimize.activate (node_modules/react-experimentify/dist/optimize.js:35:11)
  at PropertyListingDetails.componentDidMount (ClientApp/components/details/PropertyListingDetails.tsx:102:21)
  at node_modules/enzyme/build/ShallowWrapper.js:215:22
  at Object.batchedUpdates (node_modules/enzyme-adapter-react-16/build/ReactSixteenAdapter.js:474:22)
  at new ShallowWrapper (node_modules/enzyme/build/ShallowWrapper.js:214:26)
  at Object.shallow (node_modules/enzyme/build/shallow.js:21:10)
  at Object.<anonymous>.test (ClientApp/components/details/PropertyListingDetails.test.tsx:47:24)

[chaobidomain]

The fix should be easy. Just need to check : typeof window !== 'undefined' && for window object.