js?key=AIzaSyAv_EYvx4lL4E7kXPlcvKhqhc99EegGNIo&libraries=places&callback=initMap:78 Google Maps JavaScript API error: RefererNotAllowedMapError code example

Example: allowed referrers google api

Adding a /* after the domain url like http://www.telesuprecon.com/* will make 
the request possible from any page within your website.

reference : 
https://stackoverflow.com/questions/32600314/google-maps-api-referrer-not-allowed