Hello,
It looks like there is a bug in ResourceLoader (or in some JavaScript minifier) that cause the valid Medawiki:Common.js of frwiki to become invalid.
Valid (at least looks like it is):
http://bits.wikimedia.org/fr.wikipedia.org/load.php?debug=true&lang=fr&modules=site&only=scripts
Invalid (sure it is not):
http://bits.wikimedia.org/fr.wikipedia.org/load.php?debug=false&lang=fr&modules=site&only=scripts
A for loop is split where it is not legal:
for(var a=0,l=AllToggleLinks.length;a<l;a++){
becomes
for(var a=0,l=AllToggleLinks.length;a<l;a
++){
The remaining JavaScript is of course skipped, so many things do not work anymore.
Thanks and best regards,
Version: unspecified
Severity: critical