This action allows the HTML simulation to retrieve data from remote server via YQL proxy, and store the data to an string type property. That means ForeUI simulation can actually integrate with other web services, and we can even create some web apps with ForeUI!
Comparing to the Get JSON Object action, this action doesn't require the remote server provides JSON-P API. So you can try to retrieve the content of much more web sites. However, this action also has its own limitation, that is its dependency on Yahoo's server, which acts as YQL proxy.
When you add this action, you will be asked to provide some parameters, as shown below: