Cisco Anyconnect VPN failure: localhost refused to connect

[pixelbookgo]

Hi, I'm not able to use Cisco Anyconnect to connect to my company's VPN, which uses SSO (Single Sign-On).
After starting my company's Anyconnect VPN connection, I was able to enter and successfully authenticate my credentials.  After this however, Chrome reported this failure:

This site can’t be reached
localhost refused to connect.

The address bar shows:
 
http://localhost:29786/api/sso/...
 
Any suggestions on how to enable Chrome localhost connections?
Is anyone is able to use Cisco Anyconnect on a Chromebook to connect to VPN?