title: Browser feature detection - Is Silverlight supported?
body: <p>I'm a keen advocate of feature detection opposed to device detection.  I'd like to be able to detect whether a browser (mobile or otherwise) supports Silverlight.</p>
  
  <p>I've had a good google and found this <a href="http://archive.msdn.microsoft.com/SLsupportedUA" rel="nofollow noreferrer">Silverlight supported user agent</a> but looking at the last comment it does not seem to be up to date.</p>
  
  <p>There is also this SO question <a href="https://stackoverflow.com/questions/6320562/is-there-a-way-to-test-if-a-browser-supports-flash-silverlight">Is there a way to test if a browser supports flash/silverlight?</a> But it doesn't seem to answer the question.  Detecting if Silverlight is installed is different to detecting support for Silverlight.</p>
  
  <p>Does anyone have any experience on this and whether it is possible?</p>