Mozilla connect logins failing with 401

[sammcj]

Description

When trying to sign in to Mozilla Connect you get redirected to a 401 error page.

This seems awfully similar to #17970

Steps to reproduce

Clear steps describing how to reproduce the issue. Providing a URL, screenshot.

1. Browse to https://connect.mozilla.org and click Login

2. Select (any) login method
3. Get redirected to https://connect.mozilla.org/auth/saml/login which returns a 401

Expected result

To be able to login

Actual result

401 from Mozilla's Apache server

Environment

• macOS 15.4.1
• Firefox (currently running Nightly 140.a1, but it occurs in any browser and browser version)

┆Issue is synchronized with this Jira Task

[Nodens-]

Also affected by this.