gstatic loader code example
Example: library google chart
<script src="https://www.gstatic.com/charts/loader.js"></script><script> google.charts.load('current', {packages: ['corechart']}); google.charts.setOnLoadCallback(drawChart); ...</script><script src="https://www.gstatic.com/charts/loader.js"></script><script> google.charts.load('current', {packages: ['corechart']}); google.charts.setOnLoadCallback(drawChart); ...</script>