I'm just guessing here but ..
MS decided to base Edge on Chrome and work with Chrome development.
As a result IE/Edge is expected to improve greatly.

However as a side effect, Chrome is now probably learning some new MS OS 'hooks' and able to experiment with them.
Chrome also (I think in April) started blocking multiple file downloads from a website on one click .. I immediately assumed the MS development towards Chrome was the source, but again just a guess on my part. It's now an option in Chrome to 'allow' a site to download multiple files at once but not the default.

This simple change broke some web apps we control and was a PITA for a bit.
There may be other new 'features' in Chrome along the path of this new development.
I'm hoping the IE/Edge improvements make it all worth while, but a little worried with some other 'side effects' in Chrome.

Wondering if this particular issue is possibly one of the new features Chrome is experimenting with ..

I do not work here, but the benefits are still awesome
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