javascript - Accessing web.config appSettings in nodejs -

i doing prototype nodejs + expressjs hosted on iis7. trying access appsettings in web.config in app.js following sample post:

access web.config settings iisnode?

unfortunately, sample post above logs "undefined" instead of value "test". there else needs setup in web.congig or app.js in order access web.config values?

i using visual studio 2013 run/debug project, , there no issues run it. thank you