There is a problem with collapsible tabs and collapsible nav. What's interesting is that they show up only when debug is true.
Putting this exact errors aside - is it an expected behaviour that they weren't shown without debugging mode? Are all scripts in try catch or something?
Or maybe this is some weird problem with RL?
Version: 1.17.x
Severity: normal
URL: http://simple.wikipedia.org/wiki/Main_Page?debug=true