content-length is incorrectly set to 0 when responding with HTTP 304 to GET requests #326
Description
The culprit:
yada/src/yada/interceptors.clj
Lines 391 to 393 in cc6cb7f
Why it's incorrect: https://datatracker.ietf.org/doc/html/rfc7230#section-3.3.2
A server MAY send a Content-Length header field in a 304 (Not
Modified) response to a conditional GET request (Section 4.1 of
[RFC7232]); a server MUST NOT send Content-Length in such a response
unless its field-value equals the decimal number of octets that would
have been sent in the payload body of a 200 (OK) response to the same
request.