Error when installing extensions when using HTTP proxy

[merlinz01]

Does this issue occur when all extensions are disabled?: Yes

• VS Code Version: 1.97.0
• OS Version: Linux Mint 22.1

Steps to Reproduce:

1. Go to the extensions panel in VSCode.
2. Search for an extension. This part works.
3. Click the Install button on the extension.

Which always gives this error in the output panel:

2025-02-06 20:11:07.312 [error] [Window] Error: net::ERR_INVALID_ARGUMENT
    at SimpleURLLoaderWrapper.<anonymous> (node:electron/js2c/utility_init:2:10511)
    at SimpleURLLoaderWrapper.emit (node:events:518:28)
2025-02-06 20:11:07.346 [error] [Window] net::ERR_INVALID_ARGUMENT: Error: net::ERR_INVALID_ARGUMENT
    at SimpleURLLoaderWrapper.<anonymous> (node:electron/js2c/utility_init:2:10511)
    at SimpleURLLoaderWrapper.emit (node:events:518:28)

The results of the network proxy test are below:

VS Code 1.97.0 (33fc5a94a3f99ebe7087e8fe79fbe1d37a251016)
Network Proxy Test 0.0.16
linux 6.8.0-52-generic x64

Settings:
- http.proxy: http://user:pass@proxy:port
  - globalLocalValue: http://user:pass@proxy:port
  - globalValue: http://user:pass@proxy:port
- http.proxyAuthorization: user:pass
  - globalLocalValue: user:pass
  - globalValue: user:pass
- http.proxyStrictSSL: false
  - globalLocalValue: false
  - globalValue: false
- http.electronFetch: true
  - globalLocalValue: true
  - globalValue: true
- http.experimental.systemCertificatesV2: true
  - globalLocalValue: true
  - globalValue: true

Environment variables:
HTTPS_PROXY=http://user:pass@proxy:port
HTTP_PROXY=http://user:pass@proxy:port
NO_PROXY=nuget.org
http_proxy=http://user:pass@proxy:port
https_proxy=http://user:pass@proxy:port

DNS:
- Servers: 127.0.0.53
- Result Order: ipv4first
- Auto Select Family: true
- Auto Select Family Attempt Timeout: 250
- Lookup: 140.82.114.4 (158 ms)

Proxy:
- URL: http://user:pass@proxy:port (1 ms)
- Connection: 407 Proxy Authentication Required
	proxy-authenticate: Basic realm="HTTP Proxy" (3 ms)

Sending GET request to https://github.com...
Received response:
- Status: 200 OK
Certificate chain:
- Subject: github.com
  Subject alt: DNS:github.com
  Validity: Feb  5 05:00:00 2025 GMT - Feb  8 05:00:00 2025 GMT
  Fingerprint: 25:02:9A:BD:FD:C4:BD:AF:E2:8C:09:CB:61:5D:6F:41:F4:CF:2B:57
- (Proxy certificates)
Local root certificates:
- (Proxy root certificate)

Sending GET request to https://github.com using fetch from Electron...
Received response:
- Status: 200 

Sending GET request to https://github.com using fetch from Node.js...
Received response:
- Status: 200 OK

Sending GET request to https://github.com using fetch from Node.js (allow HTTP2)...
Received response:
- Status: 200