Empty whitelist applies default whitelist

[seanrand]

Affects both latest master of uBlock Origin and uBlock.
To reproduce:

1. Apply behind-the-scene * * noop rule
2. Delete everything from the whitelist and apply changes
3. Open Behind the scene in request log
4. Open a GitHub tab (or any other page that uses navigator beacons)
5. Observe https://www.google-analytics.com/collect not being blocked in the request log
6. Add # to the whitelist and apply changes
7. Refresh GitHub tab
8. Observe https://www.google-analytics.com/collect being blocked in the request log

Without looking into it, my guess is that when the whitelist is completely empty, uBlock uses the default whitelist (with behind-the-scene whitelisted) instead.

[gorhill]

Never mind, I read more carefully.