Why I can't paste text of clipboard in the terminal of vscode embedded in iframe?

[ether-wang]

• System: Windows 11
• Browser: Chrome - Version 120.0.6099.200
  I embedded the vs code web IDE in an iframe with a different origin, I found that I can't use the CTRL+V shortcut to paste the command in the terminal editor, but the SHIFT+INSERT can do it.
  So I opened the vs code web IDE in the browser directly, the CTRL+V still prompted I should grant access although I allowed the reading from the clipboard.
  The SHIFT+INSERT still works for me, nonetheless, I still want to figure out the real reason for the CTRL+V is invalid.
  By the way, the Mac don't have the SHIFT+INSERT shortcut, and the SHIFT+COMMAND+V don't work, so is there any way of pasting in MAC OS?
  Regards

When I try to paste a command with CTRL+C -

[code-asher]

I think probably shift+insert is doing a native paste while ctrl+v is being caught by VS Code and using the clipboard API, and maybe the clipboard API is not allowed in the iframe? Do you see any errors in the console log? Maybe you need allow="clipboard-read" on the iframe or something.

[code-asher]

Looks like it needs the origin as well so allow="clipboard-read *" or allow="clipboard-read self https://frame-domain.tld", something like that.

[ether-wang]

Thanks for your reply, I suspected the issue was from the iframe or any origin stuff, so I just opened the web IDE in the browser directly, but I found that I still couldn't use the CTRL+V, and this is the error in the console log -

[ether-wang]

and I can see that I've switched on the clipboard

[code-asher]

Interesting. I just remembered that in the terminal ctrl+v has a special meaning (not sure what exactly) but ctrl+shift+v is supposed to work for pasting. I double checked and ctrl+shift+v in the terminal works for me (running Chromium 120.0.6099.129 on Linux, code-server v4.20.0).

You said cmd+shift+v is not working for you either though? Can you check your keybindings for workbench.action.terminal.paste and see what is bound?