Basic Sessionless Flash Plugin
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This grails plugin provides an implementation of grails' flash scope (`org.codehaus.groovy.grails.web.servlet.FlashScope`) that stores flash entries in a cookie, instead of the servlet session. It works with `String` values only.

To use, generate a random secret, and configure the plugin to use it via the `grails.plugin.basicSessionlessFlash.secret` config property. For example, run this in your shell:

    openssl rand -base64 30

And then use the output (for example, `abc123`) in your `grails-app/conf/Config.groovy` file:

    grails.plugin.basicSessionlessFlash.secret.base64 = 'abc123'

For other config settings, see `org.c02e.plugin.flash.BasicSessionlessFlashFilter`.