Notifications don't display when called via javascript on OSX Yosemite 10.10.5
If I load my app files into the v0.12.3 64bit release from NW manually they work, but the same files will not trigger notifications when using this generator to build a distribution of the app.
I recreated it as well by creating a new generator project with the notifications sample project installed. Notifications in that built sample application do not show. (the built in ones, node-notifier and nw-notify both show)