An application that is native contains a WkWebview along with a blue native navigation bar.
This app is being used on an iPad running iOS 10.3.1 and Safari 10
The bounce feature is currently enabled.
Within the WkWebview, there is a brown overlay positioned fixedly and a modal displayed on top of it.
In a video linked here, it can be seen that the fixed overlay is movable. The content in the background moves behind the overlay.
Is there a way to prevent the fixed overlay from moving?