it should work also in the phone. At least I checked it in mine and it worked... Strange..

Did you try in any other device if you can see it? Could you try to check if you can see this image: https://github-kudos.com/manuelarte/kudos/octocat ?

If you are willing, you could give me a bit more details (maybe the model of your device), and I can try to look what's happening.