Solved: Embed Google Chart in MS Access

I'm trying to embed a Google Chart in MS Access 2010/13/16, via a web browser AxtiveX linked to a local html file - contents shown below. But I only get an empty white page. Any ideas would be most welcome :)

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<html>
<head>
<script type='text/javascript' src='https://www.gstatic.com/charts/loader.js'></script>
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<script type='text/javascript'>
google.charts.load('current', {'packages': ['geochart']});
google.charts.setOnLoadCallback(drawMarkersMap);

function drawMarkersMap() {
var data = google.visualization.arrayToDataTable([
['City', 'Population', 'Area'],
['Rome', 2761477, 1285.31],
['Milan', 1324110, 181.76],
['Naples', 959574, 117.27],
['Turin', 907563, 130.17],
['Palermo', 655875, 158.9],
['Genoa', 607906, 243.60],
['Bologna', 380181, 140.7],
['Florence', 371282, 102.41],
['Fiumicino', 67370, 213.44],
['Anzio', 52192, 43.43],
['Ciampino', 38262, 11]
]);

var options = {
region: 'IT',
displayMode: 'markers',
colorAxis: {colors: ['green', 'blue']}
};

var chart = new google.visualization.GeoChart(document.getElementById('chart_div'));
chart.draw(data, options);
};
</script>
</head>
<body>
<div id="chart_div" style="width: 900px; height: 500px;"></div>
</body>
</html>