From c7e8b65b6c3e0febe289a1282708bd3f8021bb46 Mon Sep 17 00:00:00 2001
From: gorhill <rhill@raymondhill.net>
Date: Fri, 8 Dec 2017 00:33:02 -0500
Subject: [PATCH] fix #3328

---
 src/js/hntrie.js | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/js/hntrie.js b/src/js/hntrie.js
index 7ba879c37..61c5c9e06 100644
--- a/src/js/hntrie.js
+++ b/src/js/hntrie.js
@@ -184,19 +184,13 @@ HNTrieBuilder.prototype.add = function(hn) {
 */
 
 HNTrieBuilder.prototype.fromDomainOpt = function(hostnames) {
-    var len = hostnames.length,
-        beg = 0, end;
-    while ( beg < len ) {
-        end = hostnames.indexOf('|', beg);
-        if ( end === -1 ) { end = len; }
-        this.add(hostnames.slice(beg, end));
-        beg = end + 1;
-    }
-    return this;
+    return this.fromIterable(hostnames.split('|'));
 };
 
 HNTrieBuilder.prototype.fromIterable = function(hostnames) {
-    for ( var hn of hostnames ) {
+    // https://github.com/gorhill/uBlock/issues/3328
+    //   Must sort from shortest to longest.
+    for ( var hn of hostnames.sort(function(a,b){return a.length-b.length;}) ) {
         this.add(hn);
     }
     return this;