From 7379bafb23b4ca330d93e7894bfe38e33d1f55d9 Mon Sep 17 00:00:00 2001
From: Raymond Hill <rhill@raymondhill.net>
Date: Wed, 28 Sep 2022 08:34:39 -0400
Subject: [PATCH] Fix serializing of unquoted attribute values

Related commit:
- https://github.com/uBlockOrigin/uBlock-issues/issues/2300
---
 src/js/static-filtering-parser.js | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/src/js/static-filtering-parser.js b/src/js/static-filtering-parser.js
index ffa3a8492..445cc09bb 100644
--- a/src/js/static-filtering-parser.js
+++ b/src/js/static-filtering-parser.js
@@ -1570,18 +1570,23 @@ Parser.prototype.SelectorCompiler = class {
         }
     }
 
+    // https://github.com/uBlockOrigin/uBlock-issues/issues/2300
+    //   Unquoted atrtibute values are parsed as Identifier instead of String.
     astSerialize(parts) {
         const out = [];
         for ( const part of parts ) {
             const { data } = part;
             switch ( data.type ) {
-            case 'AttributeSelector':
+            case 'AttributeSelector': {
+                const name = data.name.name;
+                const value = data.value.value || data.value.name;
                 out.push(
                     data.matcher
-                        ? `[${data.name.name}${data.matcher}"${data.value.value}"]`
-                        : `[${data.name.name}]`
+                        ? `[${name}${data.matcher}"${value}"]`
+                        : `[${name}]`
                 );
                 break;
+            }
             case 'ClassSelector':
                 out.push(`.${data.name}`);
                 break;