Bug 2129055

Summary:	Login fails with "This web browser is too old" with upcoming Firefox and Chromium browsers [rhel-8.6.0.z]
Product:	Red Hat Enterprise Linux 8	Reporter:	RHEL Program Management Team <pgm-rhel-tools>
Component:	cockpit	Assignee:	Martin Pitt <mpitt>
Status:	CLOSED ERRATA	QA Contact:	Jan Ščotka <jscotka>
Severity:	urgent	Docs Contact:
Priority:	urgent
Version:	8.6	CC:	b_power, glesage, jean-francois.courteau, jscotka, lmiksik, mmarusak
Target Milestone:	rc	Keywords:	Rebase, Regression, Triaged, ZStream
Target Release:	8.6
Hardware:	All
OS:	All
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:	2126044	Environment:
Last Closed:	2022-10-25 08:49:10 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2126044
Bug Blocks:

Description RHEL Program Management Team 2022-09-22 12:06:42 UTC

This bug has been copied from bug#2126044 and will be backported to the 8.6.0 Z-stream.

Description of problem:

Firefox Nightly now reports unsupported CSS selectors. Since that fix was implemented, Firefox Nightly users can no longer log in into Cockpit, the login page just shows:

   This web browser is too old to run the Web Console (missing selector(:is():where()))

This is due to a bad CSS capability check in Cockpit's login page.

See this issue for details: https://bugzilla.mozilla.org/show_bug.cgi?id=1790259

Chromium is affected in the same way.

Current *releases* of Firefox and Chromium are fine still, but it is expected that the upcoming versions will contain this change.

Version-Release number of selected component (if applicable):

cockpit-ws-275-1.el9

How reproducible: Always


Steps to Reproduce:
1. Try to log into Cockpit with Firefox nightly

Actual results: Login page shows the error above, login is not possible.

Expected results: Login should work normally.

This was reported upstream in https://github.com/cockpit-project/cockpit/issues/17724 and fixed in https://github.com/cockpit-project/cockpit/pull/17726

Comment 9 Martin Pitt 2022-10-21 04:10:40 UTC

*** Bug 2136679 has been marked as a duplicate of this bug. ***

Comment 15 errata-xmlrpc 2022-10-25 08:49:10 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (cockpit bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2022:7113