Extension list not load behind corp proxy with NTLM

[McMlok]

• VSCode Version: 1.3.1
• OS Version: Windows 7

Steps to Reproduce:

1. Open VS Code
2. CTRL+P
3. ext install csharp

My settings.json is
{
"http.proxy": "http://[DOMAIN]%5C[USER]:[PASS]@proxy.corp.cz:8080",
"https.proxy": "http://[DOMAIN]%5C[USER]:[PASS]@proxy.corp.cz:8080",
"http.proxyStrictSSL": false
}

There is no error but nothing happens.

I look at WireShark and see
CONNECT marketplace.visualstudio.com:443 HTTP/1.1\r\n
Proxy-Authorization: Basic ZHNcbXRvbWFzb3Y6TWFsYWNoaSoyNTY=\r\n
Credentials: [DOMAIN][USER]:[PASS]

But our proxy needs NTLM not Basic. Is there chance to say VS Code to use NTLM?

Thanks

[joaomoreno]

Can you try with the latest insiders release?

[McMlok]

I try it with same result.

[goonslop]

@joaomoreno I'm also experiencing a similar issue behind SSL-breaking firewall - details here:
Extension connection problems #10540

[Lakritzator]

I have the same problem, just wanted to confirm that I cannot use Visual Studio Code behind a Corporate proxy. Had a hard time installing it, as the installer need admin rights, but in the end it was for nothing as there is not much sense of using it without extensions 😞

[ywmail]

before v1.5.1, I use cntlm to translate the NTLM proxy to a none encrypted proxy, it worded ok. After update to 1.5.1, neither NTLM proxy or cntlm works. I also have "http.proxyStrictSSL": false set, but it seems does nothing with promotes unable to verify the first certificate.

[joaomoreno]

@ywmail #11702

[McMlok]

cntlm as workarround works. Thanks

[f-mon]

same issue, no extension gallery working on 1.9.1 behind corporate proxy.
it seems proxy configurations in settings.json doesn't affect the extension gallery.
Any news on this bug?

[joaomoreno]

@f-mon #18103

[er06645810]

Same issue for me too. Notably, installing via the command line works for most extensions. However, some extensions like cpptools attempt to download additional components when vscode launches the first time after installation, and that fails.

[joaomoreno]

Support comes with #22369

Merging with #27838