Directshow support in MS Edge & Adobe Flash Player

Well,

what do I have:

1. MS Windows 10 (x86 or x64) with the last updates.
2. MS Edge with turned on (in Edge properties) Adobe Flash Player 19.0.0.185.
3. My video AVStream minidriver and KS Proxy plug-in for its DS support. The driver is used as a video source.

What do I test:

DS support of Adobe Flash Player in MS Edge.

What do I get:

In Edge I can select my diver in Flash properties, as a video source. The driver connects to Flash, but I don't see any video there. By log I defined that Flash did not call my plug-in.

Ok, if in Edge properties I choose to connect the page via IE, it is alright, the same Flash shows my video in IE.

So in Edge environment the Flash doesn't support DS at all. Is it true or the problem is only in my driver?