…guiluz)This PR was submitted for the 3.2 branch but it was merged into the 2.7 branch instead (closes#7601).Discussion----------Improve specification explanationRFC 2616 and RFC 7234 define that a recipient MUST ignore Expires header if one of `s-max-age` or `max-age` header is defined.Commits-------ce64af5 Update expiration.rst46e6408 Update expiration.rstb66e4d7 Update expiration.rst13102da Update expiration.rst8666bed Minor reword and fixed the line length232c029 Improve specification explanation

* 2.7: (31 commits)  Fixed the RST syntax  Improve example context  [#5621] Enhancing example of using bundle config  [#7601] minor tweak  Update expiration.rst  Update expiration.rst  Update expiration.rst  Update expiration.rst  Minor reword and fixed the line length  Improve specification explanation  [#7664] minor wording tweak  Rewords and minor fixes  Add an explanation about «constraints» validation  [#7645] enumerate ordered list items implicitly  Adding a new article about "Creating a Bug Reproducer"  Fixed a syntax issue  Use backticks#7311 choice_value callback argument can be null  Fixed broken links for nginx & FastCgiExternalServer  Update dialoghelper.rst  ...

* 2.8: (46 commits)  [#7507] fix component name  [#7490] minor typo fix  Added a note about redirections to absolute URLs in tests  Added the changes suggested by reviewers  [#7620] use generate() in PHP templates before 2.8  Fixed the RST syntax  Improve example context  [#5621] Enhancing example of using bundle config  [#7601] minor tweak  Update expiration.rst  Update expiration.rst  Update expiration.rst  Update expiration.rst  Minor reword and fixed the line length  Improve specification explanation  [#7664] minor wording tweak  Rewords and minor fixes  Add an explanation about «constraints» validation  [#7645] enumerate ordered list items implicitly  Adding a new article about "Creating a Bug Reproducer"  ...