From cbd0e1d1267934c033240a3b25e2e328bf32549b Mon Sep 17 00:00:00 2001
From: gorhill <rhill@raymondhill.net>
Date: Mon, 16 Mar 2015 12:00:19 -0400
Subject: [PATCH] this fixes #1033

---
 src/js/subscriber.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/js/subscriber.js b/src/js/subscriber.js
index c1c6e61c7..64b7c9179 100644
--- a/src/js/subscriber.js
+++ b/src/js/subscriber.js
@@ -109,7 +109,9 @@ var onAbpLinkClicked = function(ev) {
         }
 
         // List already subscribed to?
-        var externalLists = details.externalLists.trim().split(/\s+/);
+        // https://github.com/gorhill/uBlock/issues/1033
+        // Split on line separators, not whitespaces.
+        var externalLists = details.externalLists.trim().split(/\s*[\n\r]+\s*/);
         if ( externalLists.indexOf(location) !== -1 ) {
             return;
         }