Hello, On Mon, Sep 14, 2009 at 3:36 AM, Henrik Nordstrom <henrik@xxxxxxxxxxxxxxxxxxx> wrote: > sön 2009-09-13 klockan 15:24 +0800 skrev Ryan Chan: > >> Is that only if and only if a user press F5 in their browser, the IMS >> will be sent? > > No. IMS is a cache validation and is done by caches (including browser > caches) whenever there is access to a stale object. > >From the user point of view, it means... 1. user press F5 (not ctrl-F5) 2. file is expired am I correct.
