In an attempt to ensure that a page is always fetched from
the server I needed to add the following code to my base
controller. Seems to be a bit long-winded but does the job.
class ApplicationController & lt ; ActionController :: Base
before \ _filter :force \ _no \ _cache
private
def force \ _no \ _cache
\ # set modify date to current timestamp
response . headers \[ “ Last - Modified ” \] = CGI :: rfc1123 \ _date ( Time . now )
\ # set expiry to back in the past
\ # (makes us a bad candidate for caching)
response . headers \[ “ Expires ” \] = 0
\ # HTTP 1.0 (disable caching)
response . headers \[ “ Pragma ” \] = “ no - cache ”
\ # HTTP 1.1 (disable caching of any kind)
\ # HTTP 1.1 ‘pre-check=0, post-check=0’ (IE specific)
response . headers \[ “ Cache - Control ” \] =
“ no - cache , no - store , must - revalidate , pre - check = 0 , post - check = 0 ”
end