This plugin enables greater levels of page caching by rendering flash messages from a cookie using JavaScript, instead of in your Rails view template. Flash contents are converted to JSON and placed in a cookie by an after_filter in a controller. For more information, see this post.
Author: Brian Takita, Pivotal Labs
Installation:
ruby script/plugin install svn://rubyforge.org/var/svn/pivotalrb/cacheable_flash/trunk