Successful authentication for desktop app redirects in browser do not work

[BarMal]

What Happened?

After successfully authenticating in Web, Web cannot redirect user successfully so authentication for desktop app is never completed.

So far behaviour exists in GitHub Desktop App and Todoist - all installed via AppCenter

Steps to Reproduce

1. Install GitHub Desktop App
2. Launch GitHub and follow login instructions to authenticate
3. On successful authentication, redirect is issued (x-github-desktop-dev-auth://oauth...)
4. Browser is unable to handle redirect, desktop app is never authenticated

Expected Behavior

Browser should redirect correctly and allow apps to become authenticated

OS Version

7.x (Early Access)

Software Version

Latest release (I have run all updates)

Log Output

No response

Hardware Info

No response

[janxkoci]

I had the same problem with Slack - had to install Firefox to login.