User logged out when transitioning to a project with non-admin role

we received a similar feedback several time. I think it is time to revisit the current behavior.
If a log-in form is displayed, many users feel they need to log-in again even though there is a message that you can click the link shown to go back to the project page (or something).

I also see more tricky behavior.

Assume user A has admin role for project X and member role for project Y.
When I opened Admin -> Network (for example) with Project X and then switched the project to project Y.
I was kicked out to the login form with a message "Unauthorized. Please try logging in again."
I tried to log-in with user A (of course I used a correct password), but I got the same message again "Unauthorized. Please try logging in again."

According to the horizon log, I got the unauthorized exception from tenant_list().

Unauthorized:
Traceback (most recent call last):
  File "/opt/stack/horizon/openstack_dashboard/dashboards/admin/networks/views.py", line 56, in _get_tenant_list
    tenants, has_more = api.keystone.tenant_list(self.request)
  File "/opt/stack/horizon/openstack_dashboard/api/keystone.py", line 352, in tenant_list
    manager = VERSIONS.get_project_manager(request, admin=admin)
  File "/opt/stack/horizon/openstack_dashboard/api/keystone.py", line 61, in get_project_manager
    manager = keystoneclient(*args, **kwargs).projects
  File "/opt/stack/horizon/openstack_dashboard/api/keystone.py", line 170, in keystoneclient
    raise exceptions.NotAuthorized
NotAuthorized

The URL is http://sheep6:8000/auth/login/?next=/admin/networks/ and I think the dashboard tried to open the admin dashboard again.

I am afraid that the current behavior of horizon potentially has a problem that a user cannot login forever without changing the URL explicitly if the user has both admin for one project and member for another project.

Is it a duplicate of https://bugs.launchpad.net/horizon/+bug/1709077?

This
"Other admin tabs affected differently. For example, switching projects from the Admin->System->Hypervisors tab will show the page template with no data.

I would expect any /admin/ url, for which a user is not an admin, to redirect to Project->Compute->Overview."

is not fixed in the scope of #1709077. So it's a bit different issue

The main issue has been fixed, so I am setting a lower priority for this.

Change abandoned by Ivan Kolodyazhny (<email address hidden>) on branch: master
Review: https://review.openstack.org/465811
Reason: This review is > 4 months without comment, and failed Jenkins the last time it was checked. We are abandoning this for now. Feel free to reactivate the review by pressing the restore button and leaving a 'recheck' comment to get fresh test results.