Adblock.dll is not processing "$document" rules correctly.

[rjjiii]

The $document rule for K-Meleon's adblock.dll doesn't work. If an adblock exception ends in "$document" then the adblocker should ignore all rules on the page. For example on this page:

https://canyoublockit.com/advanced-adblocker-test/web-banners/

I set a single rule in my adblockt.txt:
amazon

Expected result: block Amazon ads
Actual result: block Amazon ads

Then I put an exception for that same rule in adblock.txt:

amazon
@@amazon

Expected result: allow Amazon ads
Actual result: allow Amazon ads

And then I tried to use an exception to allow all everything from that site via adblock.txt

amazon
@@||canyoublockit.com^$document

Expected result: allow Amazon ads
Actual result: block Amazon ads

I can see the code in adblock.dll in adblock.cpp that handles exceptions. It has 2 sections that work to disable it for internal "chrome" pages and to disable it when its pref is set to disabled. There's a third section for the $document rule, the one with TYPE_DOCUMENT. I don't understand the language or the engine enough to trouble shoot the issue further:

	*_retval = nsIContentPolicy::ACCEPT;
	if (!aContext || aContentType == Policy::TYPE_DOCUMENT)
		return NS_OK;
	
	if (IsInWhiteList(aContentLocation))
		return NS_OK;

	if (rules.disabled())
		return NS_OK;