Merge r1584878 from trunk:

Do not delete the wrong data from HTML code when a "http-equiv" meta tag specifies a Content-Type behind any other "http-equiv" meta tag.
PR 56287 [Micha Lenk <micha lenk info>]
Submitted by: jailletc36
Reviewed/backported by: jim


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1587693 13f79535-47bb-0310-9956-ffa450edef68
Merge r1585824 from trunk:

mod_proxy_fcgi: Fix sending of response without some HTTP headers
that might be set by filters.

The problem occurs when no body bytes were read while reading the
response headers, resulting in an empty brigade being sent down
the filter stack.  One particualr filter that mishandles the empty
initial brigade is mod_deflate.  It neglects to add to the response
header fields.

PR: 55558
Submitted by: Jim Riggs <jim riggs.me>
Reviewed by: trawick

Submitted by: trawick
Reviewed/backported by: jim


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1587694 13f79535-47bb-0310-9956-ffa450edef68
Merge r1546759, r1546760 from trunk:

Add suspend_connection and resume_connection hooks to notify modules
when the thread/connection relationship changes.  (Currently implemented
only for the Event MPM; should be implemented for all async MPMs.)


follow-up to r1546759: remove an inadvertently committed testcase
Submitted by: trawick
Reviewed/backported by: jim


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1587695 13f79535-47bb-0310-9956-ffa450edef68
Merge r1580568 from trunk:

mod_reqtimeout: Resolve unexpected timeouts on keepalive requests 
under the Event MPM. PR56216.  

Submitted By: Frank Meier <frank meier ergon ch>
Committed By: covener



Submitted by: covener
Reviewed/backported by: jim


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1587697 13f79535-47bb-0310-9956-ffa450edef68