From e4d75fa025cbe25b94840f17c35acb520328bc18 Mon Sep 17 00:00:00 2001
From: Raymond Hill <rhill@raymondhill.net>
Date: Sun, 17 Oct 2021 12:55:31 -0400
Subject: [PATCH] Ignore unused tabs.onUpdated() events

---
 platform/common/vapi-background.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/platform/common/vapi-background.js b/platform/common/vapi-background.js
index cf1f76131..da7a584ad 100644
--- a/platform/common/vapi-background.js
+++ b/platform/common/vapi-background.js
@@ -524,9 +524,12 @@ vAPI.Tabs = class {
     }
 
     onUpdatedHandler(tabId, changeInfo, tab) {
+        // Ignore uninteresting update events
+        const { status = '', title = '', url = '' } = changeInfo;
+        if ( status === '' && title === '' && url === '' ) { return; }
         // https://github.com/gorhill/uBlock/issues/3073
         //   Fall back to `tab.url` when `changeInfo.url` is not set.
-        if ( typeof changeInfo.url !== 'string' ) {
+        if ( url === '' ) {
             changeInfo.url = tab && tab.url;
         }
         if ( changeInfo.url ) {