The above discussed issue could be observed, when the end of the scrollable area of the Window is reached. Until that point, the scroll within the Window should work as expected.
Is this your case? If it is not and you could not scroll the Window at all, can you reproduce the issue on the following Dojo sample
? I have tested the above on iPad with iOS 9.3.5 and on iPhone 6 with iOS 10.2, both running Safari and the demo behaves as described above.
If you face the described issue, the suggested workaround is still a viable option for this case.
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