Google AdSense _glc_au cookie not blocked

[mado-opus]

Hi all,
Using adsense: { category: "<category name>", type: "script-tag", cookies: [ {name: "_gcl_au", domain: '<domain name>'} ], language: {locale: {en: {name: "Google Adsense"}}} }, as one of the services I still see the cookie _gcl_au popping up when it is supposed to be blocked.

The following scripts are used to generate this cookie:

 <script id="googleTagManager2" async src="https://www.googletagmanager.com/gtag/js?id=<ID>">
 </script>
 
 <script id="googleTagManager">
         window.dataLayer = window.dataLayer || [];
         function gtag(){dataLayer.push(arguments);}
         gtag('js', new Date());
         gtag('config', '<ID>);
 </script>

Does anyone might have an idea what I am doing wrong?

[mado-opus]

I had to add the script tag type="text/plain" :-).

[Scippy]

I had to add the script tag type="text/plain" :-).

Where you've added type="text/plain"?
I'm no able to delete any local browser cookie!

[mado-opus]

It's a javascript tag that you can add above the script you're trying to block:
<script type="text/plain"> // script </script>