There is a mod_http2/mod_proxy_http2 backport proposal in 2.4.x/STATUS
that accumulates this years changes from the github version. This
includes several bugfixes, 2 of which from Michael Kaufmann (Thanks!),
for issues reported:
*) mod_http2: HEAD requests to some module such as mod_cgid caused the stream
to
terminate improperly and cause a HTTP/2 PROTOCOL_ERROR.
Fixes <https://github.com/icing/mod_h2/issues/167>. [Michael Kaufmann]
*) mod_http2: when SSL renegotiation is inhibited and a 403 ErrorDocument is
in play, the proper HTTP/2 stream reset did not trigger with
H2_ERR_HTTP_1_1_REQUIRED.
Fixed. [Michael Kaufmann]
*) mod_proxy_http2: changed mod_proxy_http2 implementation and fixed several
bugs which
resolve PR63170. The proxy module does now a single h2 request on the
(reused)
connection and returns. [Stefan Eissing]
*) mod_http2: enable re-use of slave connections again. Fixed slave connection
keepalives counter. [Stefan Eissing]
Two features have also been implemented:
*) mod_http2: new configuration directive: ```H2Padding numbits``` to control
padding of HTTP/2 payload frames. 'numbits' is a number from 0-8,
controlling the range of padding bytes added to a frame. The actual number
added is chosen randomly per frame. This applies to HEADERS, DATA and
PUSH_PROMISE
frames equally. The default continues to be 0, e.g. no padding. [Stefan
Eissing]
*) mod_http2: Configuration directives H2Push and H2Upgrade can now be
specified per
Location/Directory, e.g. disabling PUSH for a specific set of resources.
[Stefan Eissing]
For the H2Padding, I also wrote a blog at:
https://icing.github.io/mod_h2/padding.html
It would be nice if 2 people could find the time to have a look at it.
Cheers, Stefan