Thanks for giving it a shot!
Sorry about the error there, can you send me what browser you're using? I was having issues with RPG Maker blowing up when full screen was toggled so that sounds kind of familiar.
Can confirm that this work on .10
I ran from a new terminal, after copying the game into Applications:
cd /Applications
chmod +x wohgame.app/Contents/MacOS/wohgame
chmod +x wohgame.app/
open wohgame.app
Which threw the standard security warning but then I ctl-clicked -> Opened from the finder on the App and selected Open from the dialog.
Seems to work fine now