I\'m trying to implement this https://developers.google.com/maps/documentation/javascript/examples/places-autocomplete-addressform on a website built with asp.net to autofil
Let's call it a bug(at least it's not documented):
New implementations(as of June 22) of the Javascript-API require a key and as it seems additionally also a actived Places API Webservice when you want to use the places-library(that's new and currently undocumented)
So: activate the Places API Webservice in the developer console and wait 1-2 minutes
Update: it's still not documented, but at least confirmed -> https://plus.google.com/102023534640640210950/posts/4mtLcUFoyTv