dwilkie/carrierwave_direct — pull request #138 by hasghari (2014-04-18 04:07:41+00:00)
Title: allow form_builder to configure use_action_status

For modern browsers, I would like to use the `success_action_status` option for direct upload to Amazon S3 but for IE versions that do not support AJAX with CORS, I need to fall back to `success_action_redirect`.

This pull request allows the form builder to be configured at render time instead of looking at the static `use_action_status` option.