Unable to disable HTTPS rewrite in HTTP inbound

[Cuthead]

config.json

{
        "inbounds": [
         {
                 "name": "socks",
                 "protocol": "socks",
                 "address": "[::]:1681"
         },
         {
                 "name": "http",
                 "protocol": "http",
                 "address": "[::]:1682"
         }
         ],
         "outbounds": [
         {
                 "name": "default",
                 "hint": "fakeip,w-md5",
                 "device": "en0",
                 "dns": "udp://8.8.8.8:53?ecs=1.2.4.8"
         }
         ]
}

Note that the default outbound does not contain https hint. So that curl -x socks5h://[::1]:1681 http://httpforever.com will be in plaintext.

But when using HTTP proxy,

curl -x http://[::1]:1682 http://httpforever.com

It always returns an HTTPS redirect.