From a5ba668c382a3be0ba41ce0f0a69ebb090c260a5 Mon Sep 17 00:00:00 2001
From: Raymond Hill <rhill@raymondhill.net>
Date: Fri, 3 Jul 2020 15:07:52 -0400
Subject: [PATCH] Fix infinitely appending style property

Related issue:
- https://github.com/NanoAdblocker/NanoCore/issues/348
---
 platform/chromium/vapi-usercss.pseudo.js | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/platform/chromium/vapi-usercss.pseudo.js b/platform/chromium/vapi-usercss.pseudo.js
index dbf55b72f4b1e..4d0fda69f35cd 100644
--- a/platform/chromium/vapi-usercss.pseudo.js
+++ b/platform/chromium/vapi-usercss.pseudo.js
@@ -365,11 +365,11 @@ vAPI.DOMFilterer = class {
             let attr = node.getAttribute('style');
             if ( attr === null ) {
                 attr = '';
-            } else if (
-                attr.length !== 0 &&
-                attr.charCodeAt(attr.length - 1) !== 0x3B /* ';' */
-            ) {
-                attr += ';';
+            } else if ( attr.length !== 0 ) {
+                if ( attr.endsWith('display:none!important;') ) { continue; }
+                if ( attr.charCodeAt(attr.length - 1) !== 0x3B /* ';' */ ) {
+                    attr += ';';
+                }
             }
             node.setAttribute('style', attr + 'display:none!important;');
         }