http://bugs.winehq.org/show_bug.cgi?id=25481
Per Johansson per@morth.org changed:
What |Removed |Added ---------------------------------------------------------------------------- CC| |per@morth.org
--- Comment #3 from Per Johansson per@morth.org 2011-08-08 17:23:22 CDT --- winebrowser has no support for URLs registered by applications inside the wine prefix. It should have, however. The workaround mentioned only works if you only have a single wine prefix, and not at all on OS X (which has native Steam).