Found in version

• 7.0.0-alpha1 b3072

Steps to reproduce

• Start Elasticsearch + Kibana with enabled stack security
• Navigate to the Kibana login page

Expected result

• The login page is displayed

Actual result

• Errors are displayed and the user is unable to login:
  

Additional information

• All refreshing / reloading / cache clearing doesn't help
• On instances without security the Kibana page works fine
• Also it's not an optimize issue: when enabling security after the first ES/Kibana start (where things work fine), the same errors occur