Taking this video as an example, here is the html tag which seems to be the critical piece of content:
<video id="dmp_Video" style="display: block; width: 350px; height: 197.436px; top: 0px; left: 0px;" playsinline="" webkit-playsinline="" x-webkit-airplay="allow" operadetachedviewtitle="All Watched Over by Machines of Loving Grace - Episode 3: The Monkey in the Machine and the Machine in the Monkey — Dailymotion" src="blob:https://www.dailymotion.com/30c69843-cd99-4101-a8bb-0a6db568dd00" controlslist="nodownload"></video>It is clearly not intended to be downloadable because there is controlslist="nodownload" and I notice that it's quite resilient to casual tampering. I would like to know how this is implemented.
If I delete the surrounding clutter nodes in Firefox, I am able to right-click on the element but the menu option to download is greyed-out. If I disable Javascript, I am not able to right-click on this element at all.
If I put the https://www.dailymotion.com/30c69843-cd99-4101-a8bb-0a6db568dd00 blob url into the browser directly, or use wget, I get a 404.
How have they achieved this?
(I'm not asking you to hack the page for me, I'm asking what I would have to do to make my own videos similarly protected.)
