@storybook/addon-a11y raises an error related to Promise polyfill

Describe the bug After updating to @angular~8.0.0 and @storybook/angular~5.1.3 started to get unhandled promise rejections.

To Reproduce Steps to reproduce the behavior:

1. Update @angular to version 8.0.0 using CLI tool
2. Update storybook and all related addons to 5.1.3
3. The addon-a11y should be imported in the addons.js
4. Run storybook
5. None of components are displayed on canvas
6. In the console an unhandled Error is displayed related to Zone.js

Expected behavior The addons should try reuse the version of core-js that is installed.

Screenshots

Code snippets package.json:

{
  "name": "web-app-prototype",
  "version": "0.0.0",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "start:mock": "ng serve --configuration=mock",
    "build": "ng build",
    "test": "jest",
    "test:watch": "jest --watch",
    "test:ci": "jest --runInBand",
    "lint": "ng lint",
    "e2e": "ng e2e",
    "start:local-prod": "ng build --prod && http-server -p 8000 -c-1 dist/web-app-prototype",
    "storybook": "start-storybook"
  },
  "private": true,
  "dependencies": {
    "@angular/animations": "~8.0.0",
    "@angular/cdk": "~8.0.0",
    "@angular/common": "~8.0.0",
    "@angular/compiler": "~8.0.0",
    "@angular/core": "~8.0.0",
    "@angular/forms": "~8.0.0",
    "@angular/material": "^8.0.0",
    "@angular/platform-browser": "~8.0.0",
    "@angular/platform-browser-dynamic": "~8.0.0",
    "@angular/pwa": "^0.12.4",
    "@angular/router": "~8.0.0",
    "@angular/service-worker": "~8.0.0",
    "@ngrx/effects": "^7.4.0",
    "@ngrx/entity": "^7.4.0",
    "@ngrx/store": "^7.4.0",
    "@ngrx/store-devtools": "^7.4.0",
    "core-js": "^3.1.3",
    "hammerjs": "^2.0.8",
    "rxjs": "~6.5.2",
    "tslib": "^1.9.0",
    "zone.js": "~0.9.1"
  },
  "devDependencies": {
    "@angular-devkit/build-angular": "~0.800.0",
    "@angular/cli": "~8.0.2",
    "@angular/compiler-cli": "~8.0.0",
    "@angular/language-service": "~8.0.0",
    "@babel/core": "^7.4.4",
    "@ngrx/schematics": "^7.4.0",
    "@status/codes": "^1.2.0",
    "@storybook/addon-a11y": "^5.1.3",
    "@storybook/addon-actions": "^5.1.3",
    "@storybook/addon-console": "^1.1.0",
    "@storybook/addon-events": "^5.1.3",
    "@storybook/addon-jest": "^5.1.3",
    "@storybook/addon-knobs": "^5.1.3",
    "@storybook/addon-links": "^5.1.3",
    "@storybook/addon-notes": "^5.1.3",
    "@storybook/addon-storysource": "^5.1.3",
    "@storybook/addon-viewport": "^5.1.3",
    "@storybook/angular": "^5.1.3",
    "@types/jasmine": "~2.8.8",
    "@types/jasminewd2": "~2.0.6",
    "@types/jest": "^24.0.13",
    "@types/node": "~12.0.7",
    "babel-loader": "^8.0.5",
    "codelyzer": "^5.1.0",
    "jasmine-core": "~2.99.1",
    "jasmine-spec-reporter": "~4.2.1",
    "jest": "^24.8.0",
    "jest-preset-angular": "^7.1.1",
    "jws": "^3.2.2",
    "protractor": "~5.4.2",
    "ts-node": "~7.0.0",
    "tslint": "~5.11.0",
    "typescript": "~3.4.5"
  },
  "jest": {
    "preset": "jest-preset-angular",
    "setupTestFrameworkScriptFile": "<rootDir>/src/setupJest.ts"
  }
}

System:

• OS: MacOS 10.14.5
• Device: MacBook Pro 13 2017
• Browser: chrome
• Framework: angular
• Addons: @storybook/addon-a11y - ^5.1.3
• Version: 5.1.3

Additional context When I remove all the imports of the addon-a11y the issue disappears

[acailly]

I cloned the example repo (https://github.com/brenzy/storybook-zone-issue) and updated storybook

npx npm-check-updates '/storybook/' -u
npm install

It updated to 5.2.4 and it seems to work. Tested with npm 6.9.0 and node 10.16.0.

However, I still have the issue described in https://github.com/storybookjs/storybook/issues/7318 on my project 😕

[brenzy]

I added a repo to reproduce this issue at: https://github.com/brenzy/storybook-zone-issue While attempting to recreate the issue, I noticed that if I used npm install the issue would occur, but if I used yarn install the issue would not occur.