Last modified: 2012-02-20 00:57:37 UTC
I just wanted to test MediaWiki:Group-sysop.js at beta.wmflabs.org. At first it didn't seem to work so I switched to &debug=true mode to be able to set linewise breakpoints etc. Surprise, surprise: It didn't work in debug mode, even if the code was correct. It took some time until I figured out what the problem was: The callback function of mw.loader.using() was called when the script arrived. But in debug mode it's only a script that implements modules by pointing to their indivial URLs, to load the modules separately. Even though the functionality (jQuery.byteLimit in my case) was not available yet, it got used - and hence my script broke. Without debug mode it works :-(
could you test this on one of the wiki's that have already moved to 1.19? See https://www.mediawiki.org/wiki/MediaWiki_1.19/Roadmap#Deployment_schedule for the schedule and where this has already happened.
Uh, I thought the wmflabs wikis ran 1.19? But according to http://de.wikipedia.beta.wmflabs.org/wiki/Spezial:Version they've already got 1.20alpha. The snippet works at test2.wikipedia.org, so you may lower the priority again.
I think that this is the bug already documented in the source with //FIXME: that's a lie. doc.write isn't actually synchronous (https://svn.wikimedia.org/viewvc/mediawiki/trunk/phase3/resources/mediawiki/mediawiki.js?revision=111697&view=markup#l687)
Lowering priority.
