Magento 2.3.5 Refused to load the script because it violates the following Content Security Policy directive.

In case if you get titled error, you can follow the below process.

Please add a file in your module or any existing module in app/code directory

Create the file app/code/Namespace/Module/etc/csp_whitelist.xml

<?xml version="1.0"?>
<!--
/**
 * Copyright  Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
-->
<csp_whitelist xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Csp/etc/csp_whitelist.xsd">
    <policies>
        <policy id="script-src">
            <values>
                <!--CDN-->
                <value id="cloudflare" type="host">*.cloudflare.com</value>

                <!--Google-->
                <value id="google-analytics" type="host">www.google-analytics.com</value>

                <!--Functions-->
                <value id="trustedshops" type="host">*.trustedshops.com</value>
                <value id="usercentrics" type="host">*.usercentrics.eu</value>
            </values>
        </policy>
        <policy id="style-src">
            <values>
                <!--CDN-->
                <value id="cloudflare" type="host">*.cloudflare.com</value>

                <!--Design-->
                <value id="typekit" type="host">*.typekit.net</value>

                <!--Functions-->
                <value id="trustedshops" type="host">*.trustedshops.com</value>
                <value id="usercentrics" type="host">*.usercentrics.eu</value>
            </values>
        </policy>
        <policy id="img-src">
            <values>
                <!--CDN-->
                <value id="cloudflare" type="host">*.cloudflare.com</value>
                <value id="klarna-base" type="host">https://cdn.klarna.com</value>

                <!--Payments-->
                <value id="paypal" type="host">*.paypal.com</value>

                <!--Video-->
                <value id="vimeocdn" type="host">*.vimeocdn.com</value>
                <value id="youtube-img" type="host">https://s.ytimg.com</value>

                <!--Functions-->
                <value id="usercentrics" type="host">*.usercentrics.eu</value>
            </values>
        </policy>
        <policy id="connect-src">
            <values>
                <!--CDN-->
                <value id="cloudflare" type="host">*.cloudflare.com</value>

                <!--Payments-->
                <value id="paypal" type="host">*.paypal.com</value>
            </values>
        </policy>
        <policy id="font-src">
            <values>
                <!--CDN-->
                <value id="cloudflare" type="host">*.cloudflare.com</value>

                <!--Design-->
                <value id="typekit" type="host">*.typekit.net</value>

                <!--Functions-->
                <value id="trustedshops" type="host">*.trustedshops.com</value>
            </values>
        </policy>
    </policies>
</csp_whitelist>

<?xml version="1.0"?>

<!--

/**

* See COPYING.txt for license details.

-->

<csp_whitelist xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Csp/etc/csp_whitelist.xsd">

<value id="cloudflare" type="host">*.cloudflare.com</value>

<value id="google-analytics" type="host">www.google-analytics.com</value>

<value id="trustedshops" type="host">*.trustedshops.com</value>

<value id="usercentrics" type="host">*.usercentrics.eu</value>

</values>

</policy>

<value id="cloudflare" type="host">*.cloudflare.com</value>

<value id="typekit" type="host">*.typekit.net</value>

<value id="trustedshops" type="host">*.trustedshops.com</value>

<value id="usercentrics" type="host">*.usercentrics.eu</value>

</values>

</policy>

<value id="cloudflare" type="host">*.cloudflare.com</value>

<value id="klarna-base" type="host">https://cdn.klarna.com</value>

<value id="paypal" type="host">*.paypal.com</value>

<value id="vimeocdn" type="host">*.vimeocdn.com</value>

<value id="youtube-img" type="host">https://s.ytimg.com</value>

<value id="usercentrics" type="host">*.usercentrics.eu</value>

</values>

</policy>

<value id="cloudflare" type="host">*.cloudflare.com</value>

<value id="paypal" type="host">*.paypal.com</value>

</values>

</policy>

<value id="cloudflare" type="host">*.cloudflare.com</value>

<value id="typekit" type="host">*.typekit.net</value>

<value id="trustedshops" type="host">*.trustedshops.com</value>

</values>

</policy>

</policies>

</csp_whitelist>

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