Cockpit provides a web interface to manage Centos Linux servers. E.g. https://10.1.1.123:9090/
However, users have found login error on Centos that mentions
This web browser is too old to run the Web Console (missing selector(:is():where()))
This is due to updates in the web browser engine. Following is a suggestion to fix;
Step 1: Update cockpit package to current version of above version 280.
dnf update cockpit
Step 2: Replace the javascript code.
sed -i 's/is():where()/is(*):where(*)/' /usr/share/cockpit/static/login.js
Reference:
https://cockpit-project.org/blog/login-issues.html