Firefox Audio canplay bugs

This is a demonstration of two bugs in Firefox (13.0.1 on Mac OS X 10.7.4).

1. Multiple canplay events

Bug: When loading an audio file, Firefox throws canplay and canplaythrough events twice each. (Mac only.)

Solution: Firefox should only throw the canplay and canplaythrough events once each.

Log canplay Log canplaythrough

Notifications

2. Setting currentTime triggers canplay events

Bug: when the currentTime property is set on an audio intance, it causes the canplay and canplaythrough events to fire. (Replicated on Mac and Windows.)

Solution: these canplay and canplaythrough events should only fire once each, when the audio can play at all, and when the audio can play all the way through (respectively).

Notifications

Log canplay Log canplaythrough

All the code is here. View source or view it on GitHub.

Music by Joshua Morse.