[Freeswitch-users] invalidating entries in http_cache?

Hi All, We are using mod_http_cache to store remote media for playback over IVR (lua). Once in a while the file at source gets updated/overwritten, so we want FS to be able to detect an invalid cache entry and re-download from the given URL. Is there a way to dirty/clear a single http_cache entry? I don't believe there is a checksum mechanism, but that would do the trick. Is there a way to force-download a URL? Neither http_pre_fetch nor http_get does this. I don't see any way in the docs, so am considering managing this independently and manually removing files from the http_cache folder when we overwrite a source file. Thanks, Neil