http://bugs.winehq.org/show_bug.cgi?id=32753
--- Comment #4 from Jacek Caban jacek@codeweavers.com 2013-04-25 05:44:10 CDT --- The fix is present in Wine Gecko 2.21-beta1 (in fact it was also present in 2.20-beta1):
http://www.winehq.org/pipermail/wine-devel/2013-April/099651.html
Please retest with the new Gecko.