The Minecraft launcher supports SOCKS proxies, but it has no support for HTTP proxies. A simple --proxyType http argument for the launcher would fix this, Java has already inbuilt support for HTTP proxies by using Proxy.Type.HTTP instead of Proxy.Type.SOCKS.
MCL-2981
No support for HTTP proxies.
Resolved
Duplicate
0
This isn't really duplicated by the other issue, because there it is a SOCKS proxy, but I want to use a HTTP proxy.