Ionic2 Beta10 - Tab with Scroll content - Scroll not working in iOS

You should not be using an Iframe. Apps will be rejected by apps stores if you try to do this. Use the inappbrowser for this.

In the case of @ankushagg93 app, the viewport units are to blame here. You really should avoid using them as they’re problematic.
Switching to:

.full-iframe {
  position:absolute;
  top: 0;
  bottom:0;
  left:0;
  width: 100%;
}

Fixes your issue.

Really again, I cannot stress this point enough.

Using an iframe will get you app rejected by the app store and is not recommended