Google maps async load: It isn't possible to write into a document from an asynchronously-loaded external script unless it is explicitly opened

Question

This one just sents me troubleshooting for a bit, so I thought it may be worth a Q&A format.

Q: I'm trying to asynchronously load google maps via API (something similar to this) But google maps loader complains

Execute write on doc: It isn't possible to write into a document from an asynchronously-loaded external script unless it is explicitly opened

Community · Accepted Answer · 2017-05-23 11:51:55Z

1

Taken from a similar question

Specify &callback=someWindowFunction in your api request and document.write won't get called

edited May 23, 2017 at 11:51

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answered Oct 29, 2015 at 6:16

neaumusic

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bebbi · Accepted Answer · 2015-04-24 13:39:26Z

A: It's possible that your url string just has a typo. Lets say you played with args and ended up with

url = https://maps.googleapis.com/maps/api/js?v=3.exp?callback=callback

google maps won't recognize the callback option and fetch the sync js script that uses a call to document.write(), instead of loading the correct async version. You can check for yourself, if after load you have a maps.googleapis.com script maps/api/js?v=3.. and it contains a getScriptcall containing document.write(), you've ended up in the wrong (sync) version..

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