A "KeyUp" event is not called in EDGE browser.

Confirmed Issue #8759973 • Assigned to Kris K.


Sep 4, 2016
This issue is public.
Found in
  • Microsoft Edge
Reported by 10 people

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Steps to reproduce

After the “Windows 10 Anniversary Update” in EDGE browser I found a problem.
First. The “msRequestAnimationFrame” method is not always called a loop method.
Second. A “KeyUp” event is not always called after an “KeyDown” event.

  • run a project from attachment in EDGE browser
  • push a keyboard arrows


1 attachment

Comments and activity

  • Microsoft Edge Team

    Changed Assigned To to “Ibrahim O.”

  • I have noticed this issue too. Subscribing!

  • Microsoft Edge Team

    Changed Assigned To to “Travis L.”

    Changed Assigned To from “Travis L.” to “Kris K.”

    Changed Status to “Confirmed”

  • Also had this problem. A similar, perhaps related less common problem is that sometimes the keyDown event does not get called when the key is first pressed, only by the first auto-repeat. This problem can also be seen in the attachment here if you play around with it enough.

  • These problems are particularly bad when the frame rate of the application is low.
    I am creating a browser game and on Edge browser on laptops it runs at 20fps - users have reported this keyboard issue multiple times.
    On more powerful desktop machines where the frame rate is higher there are far fewer reports.

  • Microsoft Edge Team

    Changed Title from “An "KeyUp" event is not called in EDGE browser.” to “A "KeyUp" event is not called in EDGE browser.”

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