Opened on 01/14/2015 at 05:23:17 AM

Closed on 02/11/2015 at 08:49:08 PM

Last modified on 02/20/2015 at 12:19:37 PM

#1801 closed defect (fixed)

Internationalized domains (IDN) aren't handled correctly

Reported by: Lain_13 Assignee: sebastian
Priority: P3 Milestone: Adblock-Plus-1.8.11-for-Chrome-Opera-Safari
Module: Platform Keywords:
Cc: mapx Blocked By: #1841
Blocking: #154, #1853 Platform: Chrome
Ready: yes Confidential: no
Tester: Verified working:
Review URL(s):



OS: Windows 7 Ultimate SP1
Chrome: Version 39.0.2171.95 m
Adblock Plus: 1.8.9
Lists (doesn't matter): EasyList + RU Adlists + Anticounter and Bitblock from RU Adlist site.

How to reproduce

  1. Try to visit site http://нашбийск.рф/ or http://xn--80acvefn6a4c.xn--p1ai/ (will change to the previous one) with following two filters:


  1. Now add following two filters and try again:


Observed behaviour

In first case all banners remains visible, in seconds case banners are blocked or hidden.

Expected behaviour

First set of hiding rules should be enough and they have to work as-is.
Otherwise it will be necessary to maintain two sets of hiding and blocking rules for such domains since second case doesn't work in Firefox.

Attachments (0)

Change History (9)

comment:1 Changed on 01/14/2015 at 08:09:01 AM by mapx

  • Cc mapx sebastian added

comment:2 Changed on 01/14/2015 at 11:00:00 AM by sebastian

  • Component changed from Unknown to Platform
  • Priority changed from Unknown to P3
  • Ready set

This is because Chrome preserves the punycode encoding of domains, while Firefox seems to support IDN on the API level transparently decoding domains. In order to have the same behavior on Chrome as we have on Firefox, we would need to decode domains processed by Adblock Plus. Therefore URL objects in combination with IDN-aware helper functions decoding the hostname.

Last edited on 01/21/2015 at 07:52:19 AM by sebastian

comment:3 Changed on 01/14/2015 at 02:50:10 PM by sebastian

  • Cc sebastian removed
  • Owner set to sebastian

comment:4 Changed on 01/21/2015 at 07:47:34 AM by sebastian

  • Blocked By 1841 added

comment:5 Changed on 01/22/2015 at 03:36:51 PM by sebastian

  • Blocking 1853 added

comment:6 Changed on 01/22/2015 at 03:37:51 PM by sebastian

  • Review URL(s) modified (diff)
  • Status changed from new to reviewing

comment:7 Changed on 02/04/2015 at 07:48:24 PM by sebastian

  • Blocking 154 added

comment:8 Changed on 02/11/2015 at 08:49:08 PM by sebastian

  • Milestone set to Adblock-Plus-for-Chrome-Opera-Safari-next
  • Resolution set to fixed
  • Status changed from reviewing to closed

comment:9 Changed on 02/20/2015 at 12:19:37 PM by sebastian

  • Summary changed from Domain-bound hiding and blocking rules doesn't work for localized domain names in Chrome to Internationalized domains (IDN) aren't handled correctly

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