1850583 - Web pages can't detect when CMD+SHIFT+4 has stolen keyboard events

Status: UNCONFIRMED

(Core :: DOM: Events, defect)

Description

[Mishiko]

Attachment: 1474894.webm

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.5 Safari/605.1.15

Steps to reproduce:

1.Launched firefox
2.Opened given link: https://codepen.io/alexduloz/pen/nEQrQN?editors=1010
3.Press CMD+SHIFT+4 and take screenshot

Actual results:

4.Observed key events(16+91) are still there after releasing the keys

Expected results:

4 Key release should be sent of command and shift.

External links:

• https://github.com/novnc/noVNC/issues/1799
• https://codepen.io/alexduloz/pen/nEQrQN?editors=1010

Comment 1

[Mishiko]

Attachment: bug-expl_compressed.mp4

On Command + Shift + 4 and taking screenshot, Observed key events are still there after releasing the keys
On Command + Shift + 4 and Escape, observed key events are still there after releasing the keys.

Additionally:
On Command + a (or any regular key), observed key event of regular key is still there after releasing of Command key.

(Sorry for low quality, this was only way I could upload here).

Comment 2

[Mishiko]

This also occurs on Chrome, And Safari https://bugs.chromium.org/p/chromium/issues/detail?id=1474894#c3

Comment 3

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'Core::DOM: Core & HTML' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.