[Vuejs]-Plenty of Uncaught (in promise) DOMException errors in simple Vue.js app

As Ohgodwhy suggested, the source of the problem was some old service worker installed on my domain (in this case simply localhost). The idea is to remove it.

To remove service worker in Chrome browser:

1. Open developer tools in your browser (F12 or command + option + i)
2. Head to Application tab
3. Go to Service Workers section
4. Click Unregister on service worker that could be broken