inAppBrowser pinch zoom on ios doesn't work

Ionic Framework ionic-v3
1

Hi,
i try to open a jpg image on ios but the pinch zoom doesn’t work.

With android platform works fine.

This is my code:

import { InAppBrowser } from 'ionic-native';

  itemBusClicked(event, item) {
    let options = 'location=no, enableViewportScale=yes';
    let browser = new InAppBrowser(item.image, '_blank', options);
  }

also i added this line in config.xml

<preference name="enableViewportScale" value="true"/>

i tried with enableViewportScale and with first letter uppercase EnableViewportScale

but in both cases does’t work

2

Did you get anywhere with this?

I’ve also tried both parameter and config.xml options with no luck

3

maybe try adding the options directly, like so

  let browser = this.iab.create(doc._address, '_blank', {
    closebuttoncaption: "Exit",
    enableViewportScale: "yes"
  });

It does work for me