Breaking: #84843 - Use no-cookie domain for youtube by default 

Description 

To improve the privacy of users the renderer for YouTube videos has been changed to use the no-cookie domain www.youtube-nocookie.com by default. The regular domain www.youtube.com is used if explicitly set by the following TypoScript configuration:

lib.contentElement {
    settings {
        media {
            additionalConfig {
                no-cookie = 0
            }
        }
    }
}

Impact 

The TypoScript configuration lib.contentElement.settings.media.additionalConfig is used as attribute additionalConfig of the ViewHelper \TYPO3\CMS\Fluid\ViewHelpers\MediaViewHelper .

If no configuration is provided, the domain www.youtube-nocookie.com is used.

Affected Installations 

Installations which require the usage of the domain www.youtube.com or setting cookies by YouTube.

Migration 

Use the TypoScript configuration lib.contentElement.settings.media.additionalConfig.no-cookie = 0