Support Screen Capture per W3C Specification
The Screen Capture (or screen share) specification  allows websites to obtain a MediaStream of the user's screen, given permission from the user.
Firefox has implemented the feature per specification (no longer requiring a whitelist ), while Chrome only allows the feature when initiated from an extension.
 Specification: https://www.w3.org/TR/screen-capture/
 Firefox re:whitelisting: https://wiki.mozilla.org/Screensharing
Screen Capture API is now supported in EdgeHTML
Jeong Shik Park commented
Screen capture API is not woking (getDisplayMedia API in Edge 17.17134)
Plz let me know why not and demo page.
I made a sample page of Edge’s Screen Capture API and tried it, but in my environment a MediaStreamError (abort) error occurs.
It is said that it worked in friends’ environment when friends tried it.
How can I solve this problem?
Wilhelm W commented
Oleg Dolotov commented
Why it this idea was posted only few month ago and there is NOTHING that Google (and Bing actually) can find about screensharing in Edge. Chrome has it for ages. Definitely a must have.