$urlget ignores 4XX status code response bodies.

https://www.mirc.com/helloworld
Code
//noop $urlget(https://www.mirc.com/helloworld,gb,&test,responsebodytest)

alias responsebodytest {
  echo -a state: $urlget($1).state
  echo -a size: $urlget($1).size
  echo -a reply: $urlget($1).reply
  if ($bvar(&test,0)) echo -s response: $bvar(&test,1-).text
  else echo -a response: $!null
}