If you still see a caching problem on Nextbigfuture try shift-F5 and other options

Sorry if you are still experiencing caching problems with Nextbigfuture.

We are still working on it. If you are having problems and not seeing articles update, here are some options.

Ctrl+F5 or Shift+F5 in Chrome should clear the cache and cookies.

Click and Clean extension

hold down ⌘+shift+r for a few seconds so that the browser makes multiple attempts to refresh the Java cache and fails

Use incognito.
Open a new incognito window (Ctrl+Shift+N). This window won’t use any stored cookies, cached content, or dns resolutions