We queried your browser about WebM support. First we checked whether the browser supports the canPlayType property on an HTML5 video element.
If canPlayType is supported, we next ask if your browser believes it can play the WebM format. HTML5-compliant browsers must respond with one of three answers: probably (which we take to be Yes), maybe (which we also take to be Yes), or an empty string (which we take to be No). For No, the video player will most likely be broken, and you'll see a sad emoticon. For probably or maybe, the player should work and you'll see a smiley emoticon.
In a production environment, a site would provide alternate video content for older browsers. This page is for browser testing only.
Ensure that your webserver responds to WebM file requests with the MIME type
video/webm. Serving an incorrect MIME type causes IE9 to switch out of HTML5 rendering mode. A 200 response (OK) alone is not enough.
A support person may ask for this information. Please make a note of it.