Improve Website Performance

Add the following imports to your index.html to avoid multiple fetch calls to external resources

<link rel="stylesheet" type="text/css" href="https://js.api.here.com/v3/3.0/mapsjs-ui.css?dp-version=1533195059" />

<script src="https://js.api.here.com/v3/3.0/mapsjs-core.js" type="text/javascript" charset="utf-8"></script>  
<script src="https://js.api.here.com/v3/3.0/mapsjs-service.js" type="text/javascript" charset="utf-8"></script>  
<script src="https://js.api.here.com/v3/3.0/mapsjs-places.js" type="text/javascript" charset="utf-8"></script>  
<script src="https://js.api.here.com/v3/3.0/mapsjs-mapevents.js" type="text/javascript" charset="utf-8"></script>  
<script src="https://js.api.here.com/v3/3.0/mapsjs-ui.js" type="text/javascript" charset="utf-8"></script>