I've run into this message, on chrome, internet explorer, with version r257.2 :
"Source : localhost:50000
Uncaught ReferenceError: a is not defined
http://localhost:50000/preview.js , line 4610 (col9)"
NW.js just freezes, like when you have a neverending loop.
Does that mean I've done something, that isn't supposed to be done, that I can fix myself, or is it a legitimate bug? It seems to happen when objects with the platform behavior land on tilemaps and/or Tiledbackgrounds, but I haven't been able to reproduce it on a new project, so there's more to it...? But I had no such issue before r257 and its .2 update, although I think I remember the error message being different before the latter.