couch_httpd.erl seems to be confused about what it wants to do with HEAD
requests.
On the one hand, it supports catching {http_head_abort, Resp} and will throw
that in start_response/3 and start_response_length/4 if your method is set
to HEAD.
On the other hand, it sets all HEAD requests to GET, so no handler can ever
know a HEAD request was made (instead, it lets Mochiweb strip the body).
I can appreciate the simplicity of the latter, but
the schizophrenic behavior seems odd. I've also got a custom handler that
would really like to know if it is HEAD or GET (generating the body takes a
lot of CPU, but I know its length because I store it in a document).
First question: should Couch really set all HEAD requests to GET?
(Personally, I think not)
Second question: does anybody know how bad it would be to remove that HEAD
-> GET mapping?
Cheers.
tj
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