TYPO3 Core

For Vimeo the "do not track"-parameter is still not really added by default.

Reproduce via:

<f:media
    file="{vimeoMediaFile}" 
/>
<iframe src="https://player.vimeo.com/video/7331?…"></iframe>

It only works when you explicitly set no-cookie:

<f:media
    file="{vimeoMediaFile}" 
    additionalConfig="{no-cookie: 1}" 
/>
<iframe src="https://player.vimeo.com/video/7331?dnt=1&amp;…"></iframe>

By contrast for YouTube it is always the default:

<f:media
    file="{youtubeMediaFile}" 
/>
<iframe src="https://www.youtube-nocookie.com/embed/7331?…"></iframe>

<f:media
    file="{youtubeMediaFile}" 
    additionalConfig="{no-cookie: 1}" 
/>
<iframe src="https://www.youtube-nocookie.com/embed/7331?…"></iframe>

<f:media
    file="{youtubeMediaFile}" 
    additionalConfig="{no-cookie: 0}" 
/>
<iframe src="https://www.youtube.com/embed/7331?…"></iframe>

First implemented in https://forge.typo3.org/issues/89381 with

• TYPO3 10: https://review.typo3.org/c/Packages/TYPO3.CMS/+/61948
• TYPO3 9.5 - BP: https://review.typo3.org/c/Packages/TYPO3.CMS/+/63746

Related to:

• https://forge.typo3.org/issues/84843