Magento admin gets in redirect loop when I login with a role that has no resources assigned

[kanduvisla]

The Magento admin gets in redirect loop when I login with a role that has no resources assigned.

Preconditions

1. Magento 2.1.7
2. Chrome

Steps to reproduce

1. Create a user role with no resources assigned to it.
2. Create an admin user with that role.
3. Log in with that user.

Expected result

I would expect a redirect back to the login page with a message or a page that shows an error message or warning.

Actual result

I get an ERR_TOO_MANY_REDIRECTS error in Chrome, insinuating that the page is in a redirect loop. The URL is: http://somedomain.dev/admin_1gqkv1/admin/noroute/denied/key/b6d4.../.

[lbajsarowicz]

I've been debugging this issue and found out that if we add adminhtml/noroute/denied to public actions, this displays error page correctly:

Need to go deeper if it won't cause any side effects. If not - I believe that will be enough solution for the issue.

[magento-engcom-team]

@kanduvisla thank you for your bug report.
We've created internal ticket MAGETWO-75337 to track progress on the issue