Description of problem:

Having OpenStack Infra provider and being on Dashboard view (http://localhost:3000/ems_infra/35?display=dashboard).

When I click on "Configuration" -> "Refresh Relationships and Power State" I got "exception caught evaling RJS" and "SyntaxError: expected expression, got '>'" as MIQ notifications and no refresh is triggered.

Server returns HTML when browser expects js.


Version-Release number of selected component (if applicable):

Master of upstream repos for manageiq, manageiq-ui-classic and manageiq-providers-openstack.

How reproducible:

Easy.

Steps to Reproduce:
1. Go to Dashboard view of OpenStack Infra provider.
2. Click on "Configuration" -> "Refresh Relationships and Power State"
3. See notifications with errors - "exception caught evaling RJS" and "SyntaxError: expected expression, got '>'"

Actual results:

Notification with errors, html returned from server to browser instead of js and no refresh event scheduled/triggered for the provider.

Expected results:

No notification with error, probably notification with information that refresh is scheduled and actual refresh scheduled.

Additional info: