1

I’m having trouble configuring Rails 4 to cache an image. I’m trying it out with the favicon, which may be a trivial case in terms of actual performance gain, but I would like to understand this aspect regardless.

I have been simply placing the favicon in my public folder and serving it that way. I’m trying instead now to serve it via a simple controller so that I can use the expires_in method in ActionController (described here).

class DocumentsController < ApplicationController
  # ...

  def favicon
    expires_in 30.minutes, :public => true
    send_file Rails.root.join('public/', 'images/', 'favicon.ico'), type: 'image/x-icon', disposition: 'inline'
  end
end

But no dice. When I request the image, here is what I see in my web inspector -

enter image description here

So as you can see, it is not being cached. Any advice?

metahamza
  • 1,405
  • 10
  • 26

1 Answers1

0

Maybe catch is in cache configuration. In /config/development.rb or /config/production.rb:

# ...
config.action_controller.perform_caching = true
# ...
Sergii K
  • 845
  • 9
  • 16