YouTube Option Applied When YouTube Not Available

Issue

If you've selected to view a video on YouTube and then subsequently click play on a different video where the YouTube option is not available, a blank YouTube player appears. (Win 7, Chrome 25.0.1364.68 beta-m)

Expected Behavior

If you have selected the option to view videos via YouTube and click play on a video where that option is not available, it should default to another format (streaming?).

Steps to Reproduce

1. Go to a video (like this one) that has the Youtube option available, select that option, and click play.
2. Go to a video (like this one) that is not available on Youtube and click play.