Angular/Ionic : Json data working on device?

Hello my app work's on browser, but some stuff I can't see in emulator/phone. for example :

<img ng-src="{{DefinitionCtrl.checking.feedbackMessage.img}}" class="image-definition">

the data is loaded from JSOn, any solution?

Can you display DefinitionCtrl.checking.feedbackMessage.img value before your img element, like this:

<span ng-bind="DefinitionCtrl.checking.feedbackMessage.img" />

You can see if your variable is defined :)