Reference / schema loading problem behind kerberos authenticated proxy

[fis-cz]

Hello,

I have problem loadind JSON references / schemas behind corporate kerberos authenticated proxy.

VS Code reports:

Problems loading reference 'https://schemastore.azurewebsites.net/schemas/json/tsconfig.json'
Unable to load schema from 'https://schemastore.azurewebsites.net/schemas/json/tsconfig.json'

or

Unable to load schema from 'http://json.schemastore.org/tslint'

Followed by the HTML error message returned by the proxy server itself: Authentication required

The rest of features of VSC are working fine (extension/market place browsing) so I think that some specific method is used to load references from the web and the Chromium proxy settings are not used.

Please note there is not fallback to NTLM or Basic authentication allowed on the proxy server, just kerberos.

Version: 1.38.1 (system/user),
I notice the problem is there at least since 1.26.

I didn't find any other related issue and I think this one is not covered by #79044 or by #74991.

[vscodebot]

(Experimental duplicate detection)
Thanks for submitting this issue. Please also check if it is already covered by an existing one, like:

• [json] schema not loading behind working proxy everything else works fine (#74991)
• Adding/Updating json schema programmatically from third party plugin (#79363)