Re: [GNU-linux-libre] youtube-dl might be running non-free software from

[Adonay Felipe Nogueira]

Sorry, replace "YouTube All HTML 5" with "HTML5 Video Everywhere!".

As a further note, I just looked at the ViewTube GreaseMonkey
userscript.

ViewTube depends on non-free JavaScript, because it makes use of the
Function constructor and passes the non-free JavaScript as the body of
the new function (read what the ytDecryptFunction function does
carefully, it essentially takes the entiry non-free JS's body and
reuses it as body of a new function). The Function constructor in
JavaScript language has the syntax:

  new Function([List of arguments separated by commas.][Another comma if there 
is at least one argument.] [Function body/code.])

Now we just have to investigate how HTML5 Video Everywhere! does it.