Ion-avatar in ionic 2 rc1

Ionic Framework ionic-v3
1

hey,
why
not works?
it not show my photo in round shape?

2

Same pb but with Rc2 on iOS (no test on android yet).
It shows in browser but not in ios simulation or on real iPhone device.
Example of code:


But I think it’s not an ion-avatar pb but only a img pb. The URI is simply not device compliance.