I was getting this odd error Cannot render console to 192.168.1.5. That was the IP of the machine I was running the server on.

In my development environment I don’t care what address it comes from because my OS’s firewall will restrict that.

Recommended: Disable That whiny crap in the development environment

# config/environments/development.rb

config.web_console.whiny_requests = false

Or To allow console to a specific address or addresses in all environments

# config/application.rb

config.web_console.whitelisted_ips = '192.168.1.5'
# or a whole network
config.web_console.whitelisted_ips = '192.168.0.0/16'

Related External Links:

• Stack Overflow - how-to-disable-cannot-render-console-from-on-rails