message: Go back to aggressively expiring the service worker
diff: @@ -972,7 +972,8 @@ FileETag None
  FileETag None
  <IfModule mod_headers.c>
  Header unset ETag
  - Header set Cache-Control "max-age=0, s-maxage=86400"
  + Header set Cache-Control "max-age=0, s-maxage=86400, no-cache, no-store, must-revalidate"
  + Header set Pragma "no-cache"
  Header unset Expires
  </IfModule>
  </FilesMatch>
  