Juan Leyva 41447216ea MDL-60264 media_vimeo: Support restricted videos by domain in the app
As reported in MOBILE-1511, Vimeo videos restricted by domain are not
working in the app.

The reason is simple: The restriction is done by the Referer HTTP
header, when a video is embedded via an iframe in the Moodle Site,
Vimeo checks the Referer to see if it matches the specified domain.

When the video is embedded in the mobile app, the Referer is the one
provided by the app Cordova container so Vimeo won't allow playing the
video.

The solution is to add an extra iframe on top of the Vimeo embedding
one (like a proxy), the app will display an iframe pointing to a page
in the site that will include the iframe pointing to vimeo so the
restriction check will work.
2017-09-28 10:00:21 +02:00
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