Netcat port forwarding

hello there

im trying to do some port forwardings using netcat by its original documentation from Nmap version

so this :

ncat -l localhost 8080 --sh-exec "ncat example.org 80"

should do forward localhost:8080 to example.org:80

but when i open localhost:8080 using my browser i get an 404 error from example.org

i tried many other websites like google but i also get 404 from them even google

any ideas?