curl: (52) Empty reply from server

[qaiwiz]

Trying to reproduce the following example on my macOS (Monterey 12.6.3) and it fails with the following error: (I have brew installed proxychain version 4.16 )
$ ssh -fqCN -D 8080 some.example.com
$ PROXYCHAINS_SOCKS5=8080 proxychains4 zsh

I should add that I am currently using stunnel (using squid) here is my stunnel.conf

sslVersion = all
debug = 7
[squid]
client = yes

options = NO_SSLv2
options = DONT_INSERT_EMPTY_FRAGMENTS

cert = /usr/local/etc/stunnel/stunnel.pem
accept = 127.0.0.1:8080
connect = "host_ip":8888

over this port and it is working fine on browsers, but it doesn't work on my bash (eg curl fails with socks5).
~$curl ifconfig
returns the following error, and I was/am hoping that proxychains can fix this. I have tried various combination of socks5, and --socks5-hostname, ... none has resolved this particular issue.

• Trying 172.64.195.16:80...
• Connected to ifconfig.io (172.64.195.16) port 80 (#0)

GET / HTTP/1.1
Host: ifconfig.io
User-Agent: curl/7.87.0
Accept: /

• Empty reply from server
• Closing connection 0
  curl: (52) Empty reply from server

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