Whatsapp and share icons not showing up for offline app

i have an offline app and i am not looking to get icons from the cdn.

All other icons show up fine but i wanted to add
whatsapp (ion-social-whatsapp) and
android share icons (ion-android-share-alt),
when i do i get this 

i have also ties downloading the latest icons files from http://ionicons.com/ and replacing them with the “out of the box” files but still i get the same problem.

i also tried to hand code the css content property in to my css i still get the same 

what seems to be the problems.

Am having the same issue too. In fact all the social android icons I inputted is not showing . Please help.