DRM. Until HTML5 standardizes DRM across browsers, these sites relying on DRM won't be getting rid of Silverlight and Flash. Incidentally, Netflix has started

DRM. Until HTML5 standardizes DRM across browsers, these sites relying on DRM won't be getting rid of Silverlight and Flash. Incidentally, Netflix has started using HTML5 instead of Silverlight/Flash, but only on Internet Explorer 11 on Windows 8.1, since HTML5 DRM extensions are available on that platform: http://www.extremetech.com/computing/159960-netflix-switches-from-silverlight-to-html5-in-windows-8-1-reduces-cpu-usage-dramatically http://www.extremetech.com/computing/159960-netflix-switches...