From f9703b2bcb2e72de1822ec58aa78ea62b7947783 Mon Sep 17 00:00:00 2001
From: hackademix
Date: Sat, 13 Oct 2018 23:13:58 +0200
Subject: Fixed potential race condition in per-tab configuration cookie hack.

---
 src/content/staticNS.js | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

(limited to 'src/content')

diff --git a/src/content/staticNS.js b/src/content/staticNS.js
index c746180..6002bfd 100644
--- a/src/content/staticNS.js
+++ b/src/content/staticNS.js
@@ -52,13 +52,14 @@
       // (before any content can access it)
 
       if (this.config.MARKER = MARKER) {
-        let cookieRx = new RegExp(`(?:^|;\\s*)${MARKER}=([^;]*)`);
+        let cookieRx = new RegExp(`(?:^|;\\s*)(${MARKER}(?:_\\d+){2})=([^;]*)`);
         let match = document.cookie.match(cookieRx);
         if (match) {
+          let [cookie, cookieName, cookieValue] = match;
           // delete cookie NOW
-          document.cookie = `${MARKER}=;expires=${new Date(Date.now() - 31536000000).toGMTString()}`;
+          document.cookie = `${cookieName}=;expires=${new Date(Date.now() - 31536000000).toGMTString()}`;
           try {
-            this.config.tabInfo = JSON.parse(decodeURIComponent(match[1]));
+            this.config.tabInfo = JSON.parse(decodeURIComponent(cookieValue));
           } catch (e) {
             error(e);
           }
-- 
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