Yahoo "Install app" prompt - how to block?

[Pathduck]

Yahoo is (fortunately) not a site I use a lot, but during testing of some other issue I suddenly came across this annoying thing:

To get it, just open Yahoo.com and browse around a bit (clean profile tested).

Any ideas how to permanently disable and block this kind of crap? I have most of my site settings set to Block, also in the Chromium settings.

Any flags to set? There are several flags relating to desktop PWAs but none seem related to outright blocking these evil things.

If all sites start with this kind of pestering it will be intolerable.

[Pathduck]

Update: I tried to actually choose "Install". It creates a new window with the "app" and a desktop shortcut:
D:\bin\Vivaldi\Application\vivaldi_proxy.exe --profile-directory=Default --app-id=bnpnjbjealcpabcenanokcflffolchnm

It creates the following folders in the profile:

\Default\Extensions\bnpnjbjealcpabcenanokcflffolchnm\
\Default\Web Applications\_crx_bnpnjbjealcpabcenanokcflffolchnm\
\Default\Web Applications\Manifest Resources\bnpnjbjealcpabcenanokcflffolchnm\

The app can be uninstalled by selecting it in the options in the app window the first time. But then closing it and opening again using the desktop shortcut there is no such options menu. At this point the user is out of options, unless they search around the web and find chrome://apps which redirects to vivaldi://apps where the pest can finally be uninstalled.

This kind of functionality needs to removed from Vivaldi as it's clearly a Chrome-only thing and Vivaldi does not have the UI to properly handle it. Users will no doubt inadvertently install something and then have no idea how to uninstall it.

[Pathduck]

So I guess nobody else is bothered by this? Or have any idea how to block these popups?

Should I report it as a bug in the hope Vivaldi can implement some kind of block option for these things?

[Pesala]

@Pathduck I am not bothered because it is not a site I would normally visit.

If I try to open any article I just get a dead bird. I have enabled block of ads and tracking cookies.

[Pathduck]

@Pesala I don't use the site either. I think it's the first time I've seen that popup, and I'm worried more sites will start with those kind of annoying popups, and we need a way to say we don't want to see them at all.

I clear cookies from everything apart from a handful of sites, so even if the site sets a cookie to "remember" my choice here I will get it once I visit again.

And yeah I also get the crashes on Yahoo. I've not bothered to report it. I think it's related to ad-blockers, possibly also to the "missing favicon" issue some sites are having. I figure it's such a huge site someone else will already have done it, and again I don't really care about the site anyway.

I just want a way to prevent such popups from ever being shown.

[npro]

@Pathduck No such prompt for me. I've browsed a lot with a clean profile on us.yahoo.com and uk.yahoo.com with the most "friendly" tracking and pro-ad settings, -allowed all cookies and 3rd party, no blocking at all, accepted all consents, enabled menu entries for PWA in vivaldi://experiments, nothing. This on stable. Maybe a hidden registered service-worker? But I couldn't find the entry I knew. Maybe Linux has no service-workers? No idea.

[Pathduck]

@npro Thanks for testing. That's really strange, I see it almost after the first click on an article. Unless it crashes first that is...

I suspect a bug so I'll report it. Hopefully this was something that just slipped by the team into the release.

ED: And now for some reason, I can't reproduce it...

Maybe Yahoo was just testing this new "feature"?

[Komposten]

There really should be a way to block these kinds of requests directly in Vivaldi. It's annoying enough with the constant "Please download our app" and "Open in App | Continue in browser" popups that appear on the phone versions of more and more websites...