onPlay isn't fired consistently in IE10 / jw version 6.11
The onPlay event is not being fired consistently in Internet Explorer 10. Oddly it works in IE 9 and in IE 11, but not in IE 10. Also works in Chrome, FF.
Here's a test link: http://buladean.com/jw6/ie10.html
If you use IE 10 and press play button (either the one on the video element, or the form button "Play"), the video changes to the poster image, the controls change from play to paused state, but it doesn't actually play. If you click on it again, or use the seek bar, the video starts to play normally.
Try it in any other browser and you'll see the difference.
JWPlayer 6.11. (Note: we are a licensed customer, see my email address for our company name)