I have installed git, nodejs and salesforcedx successfully. I have configured my proxy in all applications. The proxy intercepts all https traffic. I do have access to the root certificate, but I am not very familiar with how these work and have not installed it in any certificate stores (do I need to?).
I can successfully use salesforcedx like so:
sfdx force --help
I can also use npm to download packages fine, and I can use git to clone repositories. All of these required me to set my http proxy and https proxy, and ssl verify to false.
However, when I try and run sfdx update I get the following error:
Get https://cli-assets.heroku.com/branches/sfdxstable/manifest.json: Proxy Access Denied
Can someone please tell me which proxy settings this line would refer to? I am having difficulty identifying why the update command is struggling to get the manifest.json file, when I can run sfdx force --help fine.