We just upgraded from MonoRails 1 to MonoRails 2.0, and want to use the CombineJS as seen here: http://erichauser.net/2009/01/27/javascript-compression-for-monorail/ In Firebug Net, it loads as http://www.domain.com/MonoRail/Files/BuiltJS.rails?name=deflayout&version=8204059377542922030 But it has must-revalidate in the cache-control: Cache-Control public, must-revalidate, max-age=259200 How can I get rid of that? Thanks in advance! :)