TabbedLanguages rewrite

Hmm, there still seem to be some funky interactions between this rewrite and live preview. It looks like the JavaScript does not even run sometimes.

I suggest you better revert to the old version, develop the rewrite in WT:JSSAND (install w:User:Kephir/gadgets/jssand.js beforehand) or as a browser user script, test it thoroughly and then deploy.

I seem to be getting a lot of script timeouts now. Could this be related?

I thought for a while that it is either this or my OrangeLinks rewrite, but now I suspect that this is MediaWiki acting up. We have had an update recently, and I vaguely remember similar problems on previous update… they might have downgraded libraries to alleviate that. Or something like that. I cannot really recall the details.