The accept header is poorly implemented by browsers and causes strange errors when used on public sites where crawlers make requests too. You should use formatted urls (e.g. /people/1.xml) to support API clients. Alternatively to re-enable it you need to set:
config.action_controller.use_accept_header = true
A special case remains for ajax requests which will have a javascript format for the base resource (/people/1) if the X-Requested-With header is present. This lets ajax pages still use format.js despite there being no params[:format]
Make ActionCaching more aware of different mimetype formats.
It will now use request.format to look up the cache type, in addition to the path extension.
When expiring caches, the request format no longer affects which cache is expired.
Signed-off-by: Pratik Naik <pratiknaik@gmail.com>
Get rid of ActionController::Base#view_controller_internals flag and
use @@protected_view_variables for storing the list of controller
specific instance variables which should be inaccessible inside views.