Extension not working behind automated proxy server config

[ericyew]

ARM Tools extension gets stuck on 'Starting ARM Template Language Server' when using it behind a proxy server like zScaler.

It never progress further and does not seem to timeout either.
Issue might be related to updated chromium proxy server support mentioned here:
https://code.visualstudio.com/docs/setup/network#_proxy-server-support
As a workaround, starting VS Code with the following command line ensures that ARM extension works as expected:
"Code.exe" --proxy-server="http=xxxx.xx.local:443;https=xxxx.xx.local:443"
Not having any issues with other extensions.

Does this occur consistently? Yes
Repro steps:

• open VS code while behind proxy
• open ARM Json file
• Starting ARM Template Language Server will pop up and never progress further

Version: 0.15.11
OS: windows
OS Release: Windows 10
Product: Visual Studio Code
Product Version: 1.85.1
Language: en