Requests to none Cloudflare sites with path /cdn-cgi/ fail

export default {
    async fetch(request, env, ctx) {
        return fetch("https://myip.wtf/cdn-cgi/trace");
    },
};

No such *** page!

fl=537f256
h=myip.wtf
ip=2a06:98c0:3600::103
ts=1746039523.85
visit_scheme=https
uag=
colo=*****
sliver=none
http=http/1.1
loc=*****
tls=off
sni=off
warp=off
gateway=off
rbi=off
kex=none