Logging in to google services (mail, calendar) is broken on Vivaldi's built-in clients

[LittleAmpton]

Trying to log into Vivaldi's mail or calendar features with Google calendar or email (using OAuth), the login window closes after "log in to application" page, and Vivaldi shows a "login interrupted" error.
When ClearURLs is disabled, there is a next screen allowing me to pick permissions, and then I can succesfully log in.
Unlike similar issues, changing the "tracking injection through history API" setting doesn't fix the issue.

(I'm sorry if some messages and names are wrong, but I have a non-english locale)

[nascentt]

This sounds like a duplicate of #329