Multiple HTTP header values

[eserte]

I think the spec should say something about multiple values for HTTP values in the environment. As the spec states that values in the environment must be scalar strings, such values should probably be concatenated using commas, like suggested in RFC 2616.

[miyagawa]

Yes, it's covered in the FAQ:

Note that I'm talking about multiple header lines with the same key,
and NOT about multiple header values (e.g. C<Accept: text/html,
text/plain, *>). Joining the header values with C<, > is obviously
the applications' job. LHTTP::Headers does exactly that when it's
passed an array reference as a header value, for instance.

[miyagawa]

This is a very good point and indeed there were bugs in a couple of implementations, such as AnyEvent and ServerSimple:
http://github.com/miyagawa/http-server-simple/commit/b505e06e2f00adf88feefecbc0cfa563aaa6713c

[miyagawa]

feedback merged.