Script source using Document Write no longer valid

[Tigerlady]

Steve,

I have been using this extension on several sites but have been getting errors in Chrome console because of using Document Write to get the code.

(index):1213 [Violation] Avoid using document.write(). https://developers.google.com/web/updates/2016/08/removing-document-write
(anonymous) @ (index):1213
(index):1213 [Violation] Parser was blocked due to document.write(<script>)
(anonymous) @ (index):1213
(index):1213 A parser-blocking, cross site (i.e. different eTLD+1) script, https://maps.google.com/maps/api/js?key=mykey, is invoked via document.write. The network request for this script MAY be blocked by the browser in this or a future page load due to poor network connectivity. If blocked in this page load, it will be confirmed in a subsequent console message. See https://www.chromestatus.com/feature/5718547946799104 for more details.
(anonymous) @ (index):1213
(index):1213 [Violation] Parser was blocked due to document.write(<script>)
(anonymous) @ (index):1213
(index):1213 A parser-blocking, cross site (i.e. different eTLD+1) script, https://maps.google.com/maps/api/js?key=mykey, is invoked via document.write. The network request for this script MAY be blocked by the browser in this or a future page load due to poor network connectivity. If blocked in this page load, it will be confirmed in a subsequent console message. See https://www.chromestatus.com/feature/5718547946799104 for more details.

I have tried this
<script async src="https://maps.google.com/maps/api/js?key=Mykey"> </script>

but then i get a Jquery error that google is undefined.

Can you please take a look and see if there is a way to fix this. I am currently using this on over 20 sites and they all have the same issue.

Thank you.