Hi all,I got a weird behavior with apache 2.4.12 (from RHEL scl for that matter).I have a php application (behind fcgi/fpm) that sets Last-Modified header like:<?php header('Last-Modified: never');but when I curl the page, the header sent is:< Last-Modified: Thu, 01 Jan 1970 00:00:00 GMTWhen the date is correct in my php app, the returned value is OK but as soon as it's not RFC valid, it's modified.Note: I tested with nginx instead of apache, nginx doesn't modify the header so it's not an issue with the php/fpm part.Any idea ?