BTW, the new Cache-Control header seems to do the exact trick we need.
On Wed, Jun 5, 2013 at 11:34 AM, Howard Lewis Ship <hls...@gmail.com> wrote: > > > > On Wed, Jun 5, 2013 at 4:11 AM, Barry Books <trs...@gmail.com> wrote: > >> If the goal if to have the browser cache the asset and only do a new >> request when the asset changes I think the only reliable way to accomplish >> this is by setting the expires header and changing the url when the asset >> changes. This way the browser has no choice but to do the right thing. >> >> What's the rational for treating module URLs differently than assets? >> >> > Please see the archives; this has been discussed. Summary: modules are > loaded by name, knowing only the name. Short of locating every possible > module (actually, not possible; some modules are virtual ... created on the > fly from other data) and computing its code and writing a special path for > each one, there's no way to embed the version number in the module URL. > > >> >> On Wed, Jun 5, 2013 at 4:04 AM, Massimo Lusetti <mluse...@gmail.com> >> wrote: >> >> > On Wed, Jun 5, 2013 at 1:09 AM, Howard Lewis Ship <hls...@gmail.com> >> > wrote: >> > >> > I believe that if we add a "Cache-Control: must-revalidate" to module >> > > content responses it should work as expected. >> > > >> > >> > >> > BTW I've always had problems with cache and cache headers, anyway, at >> > w3c[1] it clearly states that the cache-control header must be honored >> by >> > all caching mechanism in the chain serving a http request but if you go >> at >> > "must-revalidate"[2] it says that it must be revalidated when it becomes >> > stale so it has to become stale (expires or max-age) before the cache >> must >> > obey to that header. >> > >> > >> > [1] http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html >> > [2] http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.9.4 >> > >> > -- >> > Massimo Lusetti >> > >> > > > > -- > Howard M. Lewis Ship > > Creator of Apache Tapestry > > The source for Tapestry training, mentoring and support. Contact me to > learn how I can get you up and productive in Tapestry fast! > > (971) 678-5210 > http://howardlewisship.com > -- Howard M. Lewis Ship Creator of Apache Tapestry The source for Tapestry training, mentoring and support. Contact me to learn how I can get you up and productive in Tapestry fast! (971) 678-5210 http://howardlewisship.com
