This no longer matters, but just in case users still use midori or see this issue with other applications (because this broke xdg-open too), this was indeed a bug in wine, now fixed:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=845334 -- Vincent Lefèvre <vinc...@vinc17.net> - Web: <https://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)
