apple-touch-icon does not seem to work with IOS 8

apple-touch-icon does not seem to work with IOS 8

 Using 
 <link rel="apple-touch-icon" href="hs-icon.png"/>
so I can save on the  home  screen a custom icon
does not seem to be working on the iphone running ios  version  8.

If there a different syntax to use this feature on an  phone running ios  version  8 ?

Thanks so much for any help.