Using the previous version of the Google Maps API worked for me. I was using v=3.exp and changed it to v=3.0
<script src="https://maps.googleapis.com/maps/api/js?v=3.0&key=YOUR_KEY&libraries=places"></script>
See : https://developers.google.com/maps/documentation/javascript/versions
Related bug in the issue tracker: https://issuetracker.google.com/issues/74048143
(from xomena’s comment)