This test passes but results in a problem: There is an error that displays when running tests in Jasmine and it falsely indicates test failure: The bug that causes this error is fixed in the latest version of zone.js according to this thread: https://github.com/angular/angular/issues/45476 @angular/core depends on zone.js version 0.11.4 in its peerDependencies which is revealed in package-lock.json: I believe