I really like Krpano. Started to test it and learn it.
I encounted a strange issue. When you use ios device the iframe that you create does not rendered on those devices. It does rendered on Android and even safari browser, but not on ipad and iphone.
Live example: https://www.one-v.co.il/test/
This is how it looks on IOS: https://www.one-v.co.il/test/ios.jpg
This is how it looks on Desktop: https://www.one-v.co.il/test/desktop.jpg
I connected my phone to my mac and tried to debug and noticed that iframe element does not rendered at all.
I hope this information will help to identify the issue.
Thank you