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h2_from_h1: To avoid any further confusion, r->err_headers should be cleared
once merged into r->headers_out.


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mod_http2: merged from trunk, sending out push promises *before* the stream response to make client handling of preload links easier

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Save a few bytes in conf pool.
Submitted by: jailletc36
Reviewed/backported by: jim


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Use 'ap_pbase64decode' to simplify code.

Silent a sparse Warning.

cid->ecb->lpszLogData can not be NULL.
It is defined in mod_isapi.h as:
typedef struct EXTENSION_CONTROL_BLOCK {
...
    char           lpszLogData[80];
...
Submitted by: jailletc36
Reviewed/backported by: jim


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using c->master for ssl var lookups when c holds no valid SSLConnRec. Fixes PR58666.
Submitted by: icing
Reviewed/backported by: jim


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Fix the use of the default 'flush' provider.
Improve documentation for the "flusher" parameter.
Remove useless empty lines.

See http://mail-archives.apache.org/mod_mbox/httpd-dev/200812.mbox/%3C494226C0.4050407@force-elite.com%3E for some more explanation.
A python script is given there to test.
I had to tweak it to have it work
(use:
        fd, payload = passfd.recvfd(conn.fileno())
instead of:
        fd = passfd.recvfd(conn.fileno())
)


This is a r1058621 regression, where somehow "char *flusher" has been turned into a "char flusher[]". So it is been broken since the beginning of 2.4.x

After this change (i.e. r1058621), 'flusher' is no more a pointer (NULL'ed when the structure it belongs to is created) but the address of an array within a structure. It can not be NULL anymore.
So, we now have to look at the content of the array itself to see if it has been initialized or if we have to use the default value instead.
Submitted by: jailletc36
Reviewed/backported by: jim


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For the "SSLStaplingReturnResponderErrors off" case, make sure to only
staple responses with certificate status "good". Also avoids including
inaccurate responses when the OCSP responder is not completely up
to date in terms of the CA-issued certificates (and provides interim
"unknown" or "extended revoked" [RFC 6960] status replies).

Log a certificate status other than "good" in stapling_check_response().

Propagate the "ok" status from stapling_check_response() back via both
stapling_renew_response() and get_and_check_cached_response() to the
callback code in stapling_cb(), enabling the decision whether to include
or skip the response.


insert missing LOGNO in ssl_util_stapling.c
Submitted by: kbrand
Reviewed/backported by: jim


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