The `msPinnedSiteState` seems to serve the same purpose as Apple's `window.navigator.standalone`. http://msdn.microsoft.com/en-us/library/ie/dn255016(v=vs.85).aspx
The
msPinnedSiteStateseems to serve the same purpose as Apple'swindow.navigator.standalone.http://msdn.microsoft.com/en-us/library/ie/dn255016(v=vs.85).aspx