I have checked the issue, This bug is not related with the keystone module in
openstack liberty.
On Liberty Keystone source code we can see the above file in
/keystone/etc/sso_callback_template.html path.
And this issue is also not occurring when we use RPM packages, because in RPMs
package of
Public bug reported:
Bug Description copied from :
https://bugs.launchpad.net/keystone/+bug/1577666
The following error occurs when a user tries to login using Horizon
Single Sign-On feature after the Idp authenticates the user and sends
SAML assertion successfully :
{"error": {"message": "An