Negation in navigateFallbackWhitelist

[SvenSeemann]

Hello everyone, i'm trying to use sw-precache on my project, but im currently struggling with the navigateFallback and navigateFallbackWhitelist.

For my static assets everything works fine, but I have a resource wich is used to download files, which should not be served by the service worker.

So I have paths like /.js, /.css, etc., wich should be cached, but everything behind /attachments/someID/download shouldn't.
In my understanding I would need more something like navigateFallbackBlacklist (as negation is not supported anymore by glob).

[jeffposnick]

Yeah, blacklisting vs. whitelisting is a sticky issue.

The values that you pass in are RegExp objects, not glob patterns, so it's not too bad to negate it:

{
  navigateFallbackWhitelist: [/^(?!.*attachments)/],
  // other options
}

(In the currently WIP successor to this library, we'll support both white and blacklists.)