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Intervening against document.write()
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Chorme Issue: The following external script tag will generate a warning:

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js"
	type="text/javascript" charset="utf-8"></script>

Read documents:

(1)
https://www.chromestatus.com/feature/5718547946799104

(2)
Intervening against document.write()
https://developers.google.com/web/updates/2016/08/removing-document-write

以下の文章(request meets criteria 2 to 5)は、「この警告は2G用だが、2Gでなくとも警告は出す」の意味になる
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Since Chrome 53, DevTools issues warnings for problematic document.write() statements. Specifically, if a document.write() request meets criteria 2 to 5 (Chrome ignores the connection criteria when sending this warning), the warning will look something like:
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(3)
Additional rationale for this effort
(They think external javascript injected by document.write() is a third-party ad!)
https://docs.google.com/document/d/1dMJRQKTw75ZNdknP3pirSBH3koPl_IWHnxlcBuu4t_c/preview
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[Warning Message]

A parser-blocking, cross site (i.e. different eTLD+1) script, https://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js, 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.
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[Solution1]

Use a local php file to read the external jquery

<!--script src="https://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js" type="text/javascript" charset="utf-8"></script-->

<script src="external.php" type="text/javascript" charset="utf-8"></script>
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[Solution2]

[local php that read the external jquery]

<?php echo file_get_contents("https://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js"); ?>
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[Solution3]

add the following line at the top of "_kdk-addon_/index.inc.php"
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<script>console.clear();</script>
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[Solution4] (This solution won't hide the warning message!)

Enter the following address bar in Chrome

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chrome://flags/
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Enter the following in search input

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disallow-doc-written-script-loads
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or you can directly get here using the following url:

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chrome://flags/#disallow-doc-written-script-loads
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Set "Default" to "Disabled"

and Relaunch Chorme

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