Video tag with Silverlight Fallback
This is a repro page for an annoying IE9 bug. If you have Silverlight version: 4.0.50524.0 (or anything that is not the most recent version of silverlight) installed when you load this page in IE9 mode you will get a modal dialog asking you to upgrade your Silverlight install.
Expected: No modal dialog in IE9 mode since the silverlight is not used to play the video
Actual: Modal dialog from Silverlight appears