The application of WHATSAPP for IOS is updated and is already fully compatible with picture-in-picture to view YouTube videos without leaving app.
It was one of the functions announced in the successive betas of the application that now arrives officially for all users of WHATSAPP for IOS: To be able to watch videos of YouTube without having to leave the application, one of the functions more demanded by the users, and that has long since been available in most of the competition messaging apps.
To use this function is necessary to update WhatsApp to the version 2.18.11, which is already available in the App Store, although the availability of this function also depends on how to share the link, and sometimes the URL does not generate thumbnail that is the that determines whether or not to activate the PiP (picture-in-picture) function. If you send a link from the YouTube App itself it generates it automatically, or simply by pasting the link and waiting for it to generate the thumbnail before sending.
As we say, is now available to all users as long as they have updated the application to the latest version. In addition, for desktop apps has already been updated, although not yet available on the Web or desktop versions for MAC, for example.
Now that has come to IOS is expected to soon be extended also to the desktop versions and other video services, since today is only compatible with videos sent from the app itself and from links that include content of You tube.