I've asked this question before this one, trying to figure out why I was seeing scrollbars on the a-ads iframes, on this website, while some swear they didn't see them! Hence, I have discovered that the appearance of the iFrame scrollbars is by execution order. And with faster or slower computers, results may vary.
I realize that I have to replace
overflow:hidden; is too weak to override whatever style the iframe's source may contain (e.g.
src="") is loaded. Because if
scrolling="no" is replaced after the source is loaded it has no effect on the outcome of the iframe display. Though, if it is place before the
One More Problem: The source can't be stripped from the
scrolling="no" was set, then that would result in double ad-loads (i.e. invalid impressions).
This is a real pickle!
All the Einsteins of the world - You're Needed!
Also, this S.O. question doesn't apply.
This issue has now been solved, for now, I think. Here is the solution:
Fellow S.O. members, please, check this page, to assure this fix is consistent, and really works at least 99.99%, if not 100%, of the time.