From b8193ea5f9f65a61187543945fe3d843756efd9c Mon Sep 17 00:00:00 2001
From: Raymond Hill <rhill@raymondhill.net>
Date: Tue, 7 Nov 2023 17:27:37 -0500
Subject: [PATCH] Fix detection of unfilled filter list fields

Related feedback:
https://github.com/uBlockOrigin/uBlock-discussions/discussions/781#discussioncomment-7503866
---
 src/js/assets.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/js/assets.js b/src/js/assets.js
index 0ac203b86..6e0eb9560 100644
--- a/src/js/assets.js
+++ b/src/js/assets.js
@@ -68,7 +68,7 @@ const extractMetadataFromList = (content, fields) => {
         const re = new RegExp(`^(?:! *|# +)${field.replace(/-/g, '(?: +|-)')}: *(.+)$`, 'im');
         const match = re.exec(head);
         let value = match && match[1].trim() || undefined;
-        if ( value !== undefined && /^%.+%$/.test(value) ) {
+        if ( value !== undefined && value.startsWith('%') ) {
             value = undefined;
         }
         field = field.toLowerCase().replace(
@@ -169,7 +169,7 @@ const isDiffUpdatableAsset = content => {
         'Diff-Path',
     ]);
     return typeof data.diffPath === 'string' &&
-        /^[^%].*[^%]$/.test(data.diffPath);
+        data.diffPath.startsWith('%') === false;
 };
 
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