Thread:Extension talk:Spoilers/Spoiler-Button instantly disappears (although it is shown for a spöit second)

I tried the extension on mediawiki 1.19 and really liked it. But after upgrading to 1.24.1 it does not work anymore. I know, that somebody already hast told you about this. But I wanted to give some more information - since i would really appreciate, if we could use it furthermore with mediawiki 1.24.1. As mentionend in the titel, the spoiler button can be seen for a split second when loading the page, but it disappears instantly. Another aspect I recognized is that on the special:version site, your extension is only mentioned in "extensions \ special pages", but not in "extensions \ parserhooks". Is that correct or does it probably give some hint about the problem - keeping in mind, that the -tag is in fact mentioned under "parser extension tags"?