eyre: send 'no content' headers with no content
?~ redirect
%- handle-response
:* %start
- :- status-code=200
+ :- status-code=204
^= headers
:~ ['set-cookie' cookie-line]
==
=^ http-moves state
%- handle-response
:* %start
- [status-code=200 headers=~]
+ [status-code=204 headers=~]
data=~
complete=%.y
==
