Pinch to Zoom HTML Widget inside iBooks Author

Hy,

I want to pinch zoom and out an image inside hype widget. When i use hype relfect i can pinch to zoom. But when i export it to iBooks Author. I cannot pinch to zoom. Will you guys able to help me regarding this. Here i attached a sample. I really dont know about coding. Kindly help me.ZOom.hype.zip (1.9 MB)

There's a section here 'Override the pinch gesture' which you can drop into your Hype document: