Prevent Cmd/Ctrl+W from closing tab in Codespaces online editor (still not fixed)

[Arkemlar]

When I press cmd+w (on Mac) then whole browser tab gets closed.

I found similar issue [link 1] that marked as duplicate of this issue [link 2] BUT neither of them solving it.

As mentioned in [link 2] I set up window.confirmBeforeClose setting (to option always) but it changed nothing - tab just keeps immideately closed.

THEN I tested idea prompted in [link 1] about adding window.onbeforeunload, I typed into browser tab's console this line:

window.onbeforeunload = () => true;

And NOW browser asked me about closing tab, just like it normally do in other web sites.
But it looks like vscode itself has some event handlers on that case and when I pressed cmd+w, I seen browser's prompt (ie Do your really want to leave the page) and also noticed how console has flooded with errors and finally an error window from vscode displayed which told me that vscode broken and I must reload the tab.

So what do we have as result.
Solution with using window.confirmBeforeClose setting - not works and it actually not even tries to work. Because if it would, then it surely must use something similar to window.onbeforeunload = () => true; that prevents browser from closing tab.
Both referenced issues relate to this one, but are not duplicates since they are closed long time ago and not solved the problem.

Version: 1.84.1
Commit: 2b35e1e
User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:109.0) Gecko/20100101 Firefox/119.0
Embedder: codespaces

[bpasero]

As a workaround: fullscreen the page or install it as PWA and keybindings should work better.

[VSCodeTriageBot]

This feature request is now a candidate for our backlog. The community has 60 days to upvote the issue. If it receives 20 upvotes we will move it to our backlog. If not, we will close it. To learn more about how we handle feature requests, please see our documentation.

Happy Coding!

[bpasero]

Related:

• Web: desktop-reserved keybindings non functional in fullscreen Firefox #83343
• Some keyboard shortcuts ignored in Safari/vscode.dev #149478
• Chromium API feedback #150744

[VSCodeTriageBot]

This feature request has not yet received the 20 community upvotes it takes to make to our backlog. 10 days to go. To learn more about how we handle feature requests, please see our documentation.

Happy Coding!

[VSCodeTriageBot]

🙁 In the last 60 days, this feature request has received less than 20 community upvotes and we closed it. Still a big Thank You to you for taking the time to create this issue! To learn more about how we handle feature requests, please see our documentation.

Happy Coding!

[r-blankenship]

Installing as a PWA (Progressive Web App) fixed the issue for me.

1. Go to the URL bar in Chrome
2. Look for the Download Icon (it is a computer monitor with a downward arrow, next to the Star)
3. Accept the download

[djbrown]

Not available for Firefox though