To allow access to the Google MAPS Api from within the Adobe MUSE Developer. Google regularly updates the API project area, so items may be moved around, but the concepts remain the same.
Access you Google APIS Console, https://code.google.com/apis/console/ Then navigate to the API Access section.
The key to getting access is to add the local IP address of your computer with two port numbers, (33334 & 33333 ) These are the internal addresses of the MUSE Internal web browser that will be used to refer the requests.
You can add these addresses to your main website whilst developing to save having to change the API Key on publishing to the live server. In the example below i have a OSx & Windows Platform, so i have added 192.168.1.3 & 192.168.1.43 respectively, with an entry for each of the port numbers used.