Opening Context.html window raises an error for parentWindow.karma object "Cannot read property 'info' of undefined"

if I open CONTEXT page with jasmine test result while tests are running locally, It will always end up with errors:
TypeError: Cannot read properties of undefined (reading 'info')

the issue is happening inside of context.js script due to karma is undefined for parentWindow object

ContextKarma.getDirectCallParentKarmaMethod = function (parentWindow) {
  return function directCallParentKarmaMethod (method, args) {
    // If the method doesn't exist, then error out
    if (!parentWindow.karma[method]) {
      parentWindow.karma.error('Expected Karma method "' + method + '" to exist but it doesn\'t')
      return
    }

    // Otherwise, run our method
    parentWindow.karma[method].apply(parentWindow.karma, args)
  }
}

Steps to reproduce:

1. Generate a new project from scratch by angular cli: ng n <project_name>.
2. Run unit tests: ng test.
3. open http://localhost:9876/context.html while executing tests locally
4. expect result: context page shows a tests result without errors, actual result: context page shows errors.
5. The issue is similar to https://github.com/karma-runner/karma-jasmine/issues/147

Start in context.js at ContextKarma.getDirectCallParentKarmaMethod and reproduce the problem by opening context.html at localhost:9876 while ng test is running. Trace how the parent window is obtained when parentWindow.karma is unavailable. Done means the context page displays the test result without the reported TypeError.