There are no issues from iOS 9.0 through iOS 10.2.
However, there is a problem with iOS 10.3 beta.
Problem: A blank space is placed where the ad was removed.
I attached the test video. Please watch with subtitles.
I have found the exact cause of the problem.
The css selector below does not work.
[id='ads'] or [class='ads']
However, the following css selectors work normally.
#ads or .ads
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