I just tried Audio.PlaybackTime in CocoonJS using the CocoonJS launcher and it doesn't appear to work. I print Audio.PlaybackTime to a text string, which is supposed to show the number of seconds the song has played. This works fine on the computer, but in CocoonJS lancher it just shows the total duration of the song instead (minus a fraction of a second).
I saw an old thread on this as well:
I guess this is a limitation of CocoonJS rather than Construct 2?