This is a question about an infrastructural detail of ResourceLoader and how it
interacts with Internet Explorer. (It's my first post to wikitech-l, so
apologies if it's the wrong forum.)
Our MediaWiki 1.17.0 site recently installed a bunch of extensions that use
ResourceLoader, such as Extension:WikiEditor. To our surprise, some of our
site's unrelated CSS styles stopped working. This was happening only in
Internet Explorer. After some detective work, we discovered the problem is
Internet Explorer's limit of 31 stylesheets:
http://support.microsoft.com/kb/262161
With so many extensions calling $wgOut->addModule [PHP} and mw.loader.load
[JavaScript], the limit of 31 stylesheets is exceeded quickly. I removed a few
mw.loader.load calls - it didn't matter which ones - and the problem went away.
Obviously this is an IE problem, not MediaWiki's, but it's going to cause
issues on MediaWiki sites. WikiEditor itself loads about 10 stylesheets, for
example, taking the site ~30% of the way toward a CSS failure.
So my questions are:
1. Is there a workaround for sites like mine, with many stylesheets from
separate extensions loaded by ResourceLoader?
2. Should ResourceLoader address this IE problem? Maybe start combining
stylesheets (with @import) automatically?
Thanks,
DanB
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