Hi, We're trying to make an integration of z3c.hashedresource into Grok. While working on it we wondered how and where people using z3c.hashedresource set the caching headers for the resources referenced by the URLs generated by z3c.hashedresource. A few random thoughts about this: * zope.browserresource.file.FileResource will set cache response headers that are more or less hardcoded. Do people just use these values? * You probably only want to set "aggressive" cache response headers for resources that are referred to by the URLs generated by z3c.hashedresource. Maybe it is an idea to set these headers in the ++noop++ namespace handler? (although the name "noop" really isn't suitable anymore then - maybe it could be "++cache++" or something). Any ideas about this? regards, jw