I suspect this is the same issue as bug #595855 and #595116: Headers are getting truncated with https. So far, I have no idea about the reason.
If you have mod_reqtimeout and/or mod_deflate enabled, you can try if disabling one or both of them makes any difference. -- client sent HTTP/1.1 request without hostname (see RFC2616 section 14.23) https://bugs.launchpad.net/bugs/589611 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to apache2 in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs