Question: I am trying to show an iframe inside my ionic app, but somehow, it appears on the browser, but it doesn't appear on the iOS device. I want to fill it with html code. 
My code:

```
<ion-content>
    <iframe width="300px" height="325px" frameborder="0" scrolling="yes" marginwidth="0" marginheight="0" ng-attr-srcdoc="{{model.html}}">
    </iframe>
</ion-content> 

```

Answer: 
The issue is that, by default, Cordova doesn't support srcdoc. The solution for recent versions of Cordova is simple. Edit config.xml for the project and add:

```
<allow-navigation href="about:*" />

```

I have tested this on Cordova 6.4.0 and it fixes the issue: it allows Cordova apps with iframes to use srcdoc.

*(The accepted answer is incorrect. iOS supports iframes just fine. marshall119us's answer was ok for previous versions of Cordova, but is obsolete.)*
my issue was that i recently retested my phone to factory reset. I had to update my apps my apps.