Vaadin v20: Odd page displayed each time after login to application

Since I switched to Vaadin 20.0.1 (from v18.0.2) EACH time after I log into my application I first get a page that displays:

self.additionalManifestEntries = [
{ url: 'icons/icon-144x144.png', revision: '-1456135562' },
{ url: 'icons/icon-192x192.png', revision: '-1333786034' },
{ url: 'icons/icon-512x512.png', revision: '1931390955' },
{ url: 'icons/icon-16x16.png', revision: '-1417519116' },
{ url: 'icons/icon-32x32.png', revision: '-2087744108' },
{ url: 'offline-stub.html', revision: '203115787' },
{ url: 'manifest.webmanifest', revision: '1979121418' },
{ url: './styles/offline.css', revision: '1252570030' },
{ url: './images/offline.png', revision: '1252570030' }
];

I then need to reload the URL. This time (since I am already logged in) it directly brings me to my application's entry page and from then on things work ok.

But what is the above trying to convey to me? Why is this appearing? And - since it's annoying: how can I tell this to "get lost!"



Read more here: https://stackoverflow.com/questions/67936187/vaadin-v20-odd-page-displayed-each-time-after-login-to-application

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