'behind-the-scene * * allow' doesn't seem to work

[sander85]

https://github.com/chrisaljoudi/uBlock/wiki/Behind-the-scene-network-requests describes behind-the-scene * * allow, but it doesn't seem to work.

I have these two rules:

* * 3p block
behind-the-scene * * allow

According to the wiki behind-the-scene request should be passed by default, but they get blocked by * * 3p block.

[AlexVallat]

Just to confirm, did you add the [Firefox] prefix because you've checked that this is Firefox specific, or because you noticed it while using Firefox?

[sander85]

At first it seemed like a Firefox issue but now I can confirm it on Chrome as well.

[my-password-is-password]

https://github.com/chrisaljoudi/uBlock/wiki/Dynamic-filtering:-precedence

Says "All cells override the all cells."

So the 3p in * * 3p block overrides all in behind-the-scene * * allow, right?

Try behind-the-scene * 3p allow

[sander85]

But it also says that local rules override global ones, so shouldn't behind-the-scene be considered as local in this case? behind-the-scene * 3p allow seems to work, but that's actually not quite what I need. I would like this combination:

* * 3p block
behind-the-scene * image allow

uBlock seems to see it as a valid combination of rules as none of them is deleted automatically. But it doesn't seem to work. The reason for such a combination is quite simple. Firefox is getting favicons behind the scene. So all favicons get blocked by * * 3p block. And I see no way to whitelist them w/o allowing everything that is going on behind the scene.

[my-password-is-password]

I think only the local all cell overrides the global all cell.

And it also says 3rd-party override images.

[sander85]

Ok, in that case there is not much that can be done here :/ I'll close this issue.

[my-password-is-password]

@sander85

Does this work?

"My Rules"

* * 3p block
behind-the-scene * 3p noop

with

"My Filters"

*$domain=behind-the-scene
@@*$image,domain=behind-the-scene

[sander85]

WOW, indeed it does! Thanks a bunch, I really appreciate it!

[neilishere]

No, it doesn't work for me

So all favicons get blocked by * * 3p block. And I see no way to whitelist them w/o allowing everything that is going on behind the scene.

I'm trying to use "default deny" for behind-the-scene, but behind-the-scene * 3p noop overrides "My Filters" - as suggested above.

[gorhill]

but behind-the-scene * 3p noop overrides "My Filters"

This can't be, noop means do not override static filters. Look at the behind-the-scene in the logger and see what it tells about the favicons.

[neilishere]

Yes, you are right. So I tried "My Filters" again (suggested above), but @@*$image,domain=behind-the-scene does not work for me.
@@*$other,domain=behind-the-scene works, but allows everything else.

I tried making @@||*favicon.ico,domain=behind-the-scene to narrow the scope, but this isn't right.
Thank you.

[gorhill]

I tried making @@||*favicon.ico,domain=behind-the-scene to narrow the scope, but this isn't right.

The double pipe || is to anchor to somewhere within the hostname, you don't want to use this in this case. Also you need to use $ to separate filter options from filter itself.

Try @@/favicon.ico$image,domain=behind-the-scene.

Edit: modified suggested filter, the more specific the better for filtering engine.

[neilishere]

The filter before your edit was somewhat working, before you added image About half the sites in my session would load the icons. Now I see that some sites use .png or some variation with the word favicon. But not all use .ico.

Now I can't get back to what you had the first time.

Edit: oops, the browser was restarted and I lost behind-the-scene * 3p noop because I didn't make permanent. I'll try again.

[gorhill]

Best would be for you to paste here the URLs for those favicons you are trying to block -- along with their reported types (image, other, etc.).

[neilishere]

My Filters:
*$domain=behind-the-scene
@@/favicon.ico^$domain=behind-the-scene
Give me this:

[Uploading behind.gif…]()

[neilishere]

I'll try again. Sorry, I had to much blocked on Github

[neilishere]

This seems to work (maybe not the most elegant):

* * 3p block
behind-the-scene * 3p noop

and this
*$domain=behind-the-scene
@@favicon$domain=behind-the-scene

Gorhill: Thank you for your help - and a great project!! (you must be the hardest working dev.)