Hello,

As a specific security requirement, on my lab,
SSH authentication is performed thru a tool named "BalaBit - Shell Control Box (SCB)", which supports SSH agent forwarding.
However, this security tool has a flaw in its current release : it is unable to fallback to ssh interactive password when authentication is set to ssh key exchange.

Therefore, I must use SSH key authentication and agent forwarding.
In addition, hosts I connect to have no internet connection, thus : localServerDownload
Last but not least, I must use cygwin ssh because activating windows openssh forward agent requires admin rights on laptop, I don't have them.

All this works OK for remote ssh editing but the upload of vscode-server fails because scp ignores ForwardAgent ssh directive in config file unless "-A" flag is present on the cmd line.

I am using following explicit remote SSH Setup :
{
"remote.SSH.configFile": "path_to_my_ssh_config",
"remote.SSH.localServerDownload": "always",
"remote.SSH.showLoginTerminal": true,
"remote.SSH.logLevel": "trace",
}
all other options are on default values, including remote.SSH.enableAgentForwarding : true

To overcome this issue, some extra remote.SSH setting for scp command should be useful in this case...
say:
Remote.SSH.scpExtraOptions: "-A" default ""