VSCode: How to login on a ssh remote connection via a proxy and sso?

- OS: RHEL 9
- Visual Studio Code version: 1.103.2
- AWS Toolkit version:
- Amazon Q version: 1.97.0

## Question

1. I run VSCode on Windows remoting into a RHEL9 machine via SSH.
2. Everything needs a proxy to connect to internet
3. On the remote I successfully installed and used `q`: I needed `https_proxy` and `SSL_CERT_FILE`
4. The VSCode extension fails with `UNABLE_TO_VERIFY_LEAF_SIGNATURE` soon after an attempt to retrieve a `1.x.json`
5. The 2 above env vars are available in VSCode too
6. I added the same `.pem` file in the VSCode settings (Certificate Authority)

Any suggestion?

I know it is bad, but, can we just disable SSL verification altogether? In corporate environments it is a guaranteed headache.

Start by reproducing the VS Code extension's remote-SSH login through the corporate proxy with https_proxy and SSL_CERT_FILE set, then compare it with the working q command. Check whether the VS Code Certificate Authority setting is applied to the extension's remote process. Done means the extension can retrieve its 1.x.json and complete SSO, or the supported limitation and SSL-verification policy are documented.

Written by the indexing model from the issue text.