Thread:Project:Support desk/Encoding problems in Table of Contents links

Hello everyone!

I got some really annoying problem with the Table of Contents. When I create new header with diacritic symbols in my article it is displayed just fine in both the article and the table of contents. The problem arises when I'm trying to use links on ToC for fast navigation. For some unknown reason all diacritics symbols in the link address and header html id attributes are converted into some strange codes. For example, instead of "#Ładziąxa" I'm getting "#.C5.81adzi.C4.85xa". Interestingly, all diacritical symbols of the page title are properly displayed both in the page content and page address so problem occurs only for ToC linking.

I tried to install another MediaWiki instance with UTF-8 instead of Binary option checked during the installation but nothing changed and the problem remained.

My MediaWiki version is 1.25.1, PHP version is 5.4.41-0+deb7u1 and MySQL 5.5.43-0+deb7u1.

Please help.