| Log Message: |
mod_brotli, mod_deflate: Restore the separate handling of 304 Not Modified
responses allowing these modules to properly set or fix-up the response
headers such as Vary or ETag.
This change follows up on r1837056 that disabled that special handling and
thus resulted in a potential violation of RFC7232, 4.1:
The server generating a 304 response MUST generate any of the following
header fields that would have been sent in a 200 (OK) response to the
same request: Cache-Control, Content-Location, Date, ETag, Expires,
and Vary.)
References:
https://lists.apache.org/thread.html/f5733ca6743757e8aa8b58a0cd9e27680971551c2a20f5606c66507e@%3Cdev.httpd.apache.org%3E
https://tools.ietf.org/html/rfc7232#section-4.1
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httpd/httpd/trunk/modules/filters/mod_brotli.c