mozilla-appmaker/appmaker — pull request #2092 by Pomax (2014-08-28 20:28:30+00:00)
Title: broadcast popup labels and event data now have the trigger name if there is no real data to show

fixes #1631

STR: new app, add media player, a button hooked up to media-listen:play, a counter hooked up to media-broadcast:playing

when you hit the button, right now the broadcast and listen bubbles show "undefined". With the patch, they will both say "playing"