From 391a5c99c7eb32e9c988929ffb74e28ab713ef69 Mon Sep 17 00:00:00 2001
From: Raymond Hill <rhill@raymondhill.net>
Date: Mon, 30 Nov 2020 12:02:36 -0500
Subject: [PATCH] Fix the parsing of unsupported static network filter types

Related issue:
- https://github.com/gorhill/uBlock/issues/2283

This is a regression causing the referenced issue to no
longer be fixed. The regression was introduced when the
new static filtering parser code was introduced in version
1.28.0:

https://github.com/gorhill/uBlock/releases/tag/1.28.0
---
 src/js/static-filtering-parser.js | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/js/static-filtering-parser.js b/src/js/static-filtering-parser.js
index 912e2f975..d19004bbd 100644
--- a/src/js/static-filtering-parser.js
+++ b/src/js/static-filtering-parser.js
@@ -2380,7 +2380,6 @@ const NetOptionsIterator = class {
             // Validate option according to context
             if (
                 descriptor === undefined ||
-                hasBits(descriptor, OPTNotSupported) ||
                 ltok !== lopt &&
                     hasNoBits(descriptor, OPTCanNegate) ||
                 this.exception &&
@@ -2419,7 +2418,12 @@ const NetOptionsIterator = class {
             // Accumulate description bits
             allBits |= descriptor;
             // Mark slices in case of invalid filter option
-            if ( this.interactive && descriptor === OPTTokenInvalid ) {
+            if (
+                this.interactive && (
+                    descriptor === OPTTokenInvalid ||
+                    hasBits(descriptor, OPTNotSupported)
+                )
+            ) {
                 this.parser.errorSlices(lopt, i);
             }
             // Store indices to raw slices, this will be used during iteration