Why won't google maps load?

Question

JavaScript

Inserted like this:

<script>
function initMap() {
  var map = new google.maps.Map(document.getElementById('act_maps'), {
    zoom: 8,
    center: {lat: -34.397, lng: 150.644}
  });
}
    </script>
    <script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyDkCvFmeobK5UYdTiKs7IBQ8GLeKeDrk2I&signed_in=true&callback=initMap" async></script>
  </body>

but here's what I see:

But when I open the code view (f12 or the current element), then everything loads fine, etc.

There are no errors, the console is empty, what could be the matter?
overrides another plug-in script, but it only handles button clicks and form submissions..

Answer 1

Given that your code works fine on its own, the problem is somewhere else.