Overriding rails Cache-Control header on redirect

Question

Whether I do:

head 302

or

head 307

or

redirect_to

calls in the same controller action to

response.headers['Cache-Control'] = "public, max-age=86400"

have no effect. Rails sends:

Cache-Control: no-cache

no matter what. I need to send the Cache-Control header to instruct an edge cache to serve the redirect for a day. Is this possible?

Answer 1

You can't set Cache-Control directly into the headers (anymore?), as you need to modify the response.cache_control object (since it will be used to set the Cache-Control header later).

Luckily, the expires_in method takes care of this for you:

expires_in 1.day, :public => true

See more here: http://apidock.com/rails/ActionController/ConditionalGet/expires_in

Answer 2

Try using this instead

response.headers['Cache-Control'] = 'public, max-age=300'

and make sure your in production mode. Rails wont cache in development.