Expression developer sandbox is in a very alpha state. Don't even try to use it :-) for now.
prerequisite : you have to install NodeJS
git clone git@github.com:webdoc/urturn-sandbox.git
cd urturn-sandbox
npm install
sudo npm linkStart it by getting to you expressions project or a specific expression folder and type
urturn-sandbox startThen visit http://localhost:3333
Copyright Webdoc Inc. 2012, all rights reserved