[wp-trac] [WordPress Trac] #44610: Allow Youtube-Player to use youtube-nocookie.com URLS to avoid setting cookies.

[WordPress Trac]

#44610: Allow Youtube-Player to use youtube-nocookie.com URLS to avoid setting
cookies.
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 Reporter:  jepperask                |       Owner:  williampatton
     Type:  enhancement              |      Status:  assigned
 Priority:  normal                   |   Milestone:  5.7
Component:  Embeds                   |     Version:  4.9.7
 Severity:  normal                   |  Resolution:
 Keywords:  needs-testing has-patch  |     Focuses:  privacy
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Comment (by johnbillion):

 To clarify, the intention of this change is to switch the domain name for
 all YouTube embeds from `youtube.com` to `youtube-nocookie.com`. The
 result is that no cookies are set by YouTube until the visitor interacts
 with the video, for example by playing it.

 Some questions:

 * Does this have any side effects for the player? For example, are there
 preferences I can set on YouTube that carry over to embedded videos that
 will no longer be respected?
 * Do controls such as "watch later" still work as expected?
 * Does this affect the video analytics in any way? For example, the Vimeo
 embed in core is currently a problem for content producers on Vimeo
 because all analytics are disabled due to the `dnt` parameter (see
 #46986). Could a similar thing affect YouTube videos embedded using this
 different domain name?
 * This will cause breakage for sites that use a content security policy
 that allows `youtube.com` but aren't aware of `youtube-nocookie.com`.
 * What else might break with a change of domain name here?

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Ticket URL: <https://core.trac.wordpress.org/ticket/44610#comment:39>
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