Url below player card


here is example of the tweet with player card
that Twitter provides at https://dev.twitter.com/cards/types/player

If you click over the title below the video “Happy holidays from our #adsapi engineering team!!” or “View on web” link
you get to this page https://vine.co/v/h0wAe99rx7u
While <meta property="twitter:player" content="https://vine.co/v/h0wAe99rx7u/card">

How do they achieve that urls below the video leads not to twitter:player url but to relevant site’s web page?
Twitter says nothing about it here https://dev.twitter.com/cards/types/player

Please advise .