Thread:Project:Support desk/Resource Module ignoring @font-face in IE9

I'm using a skin with custom fonts, using MediaWiki's resource module system to load the stylesheet.

When testing in IE9 however, the font-face properties seem to be ignored by MediaWiki. By "ignored", I mean that IE9 doesn't even report CSS3117 when attempting to load cross-origin fonts from restricted hosts.

My current workaround is to flat out avoid the module (addModuleStyles) and instead use the old addStyle function to explicitly load the stylesheet.

I've tested other browsers and they work, it only fails on IE9 (possibly other IEs as well). Only tested on a skin, but since it uses the resource module, may affect extensions as well.

Anyone have a clue on how to fix?