[sf-lug] [Opera & Vivaldi]

[Rick Moen]

Quoting Daniel Gimpelevich (daniel at gimpelevich.san-francisco.ca.us):

> It's not open source, but its upstream Blink and V8 engines are.

{sigh]

I already detailed about Blink in the footnote, including the fact that
Opera Software ASA is neither in charge of Blink nor free to choose
anything but open source licensing given lineal descent from KDE's
kHTML.

I didn't bother to cover the Chrome V8 JavaScript engine, which is the
exact same story -- likewise managed by Chromium Project rather than
Opera Software ASA, and likewise having its licensing dictated by
preexisting software of which it's derivative, in this case Dave
Griswold's Strongtalk engine.  

I didn't bother in part because digressing onto edge-case theatre would
be just an utter waste of time -- which the present discussion is
further proving.  (And 'maestro' wasn't seeking information about Blink
or Chrome V8, was he?)

You can probably find various other Javascript snippets, etc., 
incorporated in Opera Web Browser under permissive licensing.  Please
don't bother.  It would lead to just throwing more good time after bad.

> Opera apparently initiated legal action against unauthorized
> distribution of an earlier release that predated the use of those
> engines:
> https://github.com/github/dmca/blob/master/2017/2017-01-12-Presto.md

To elaborate:  Opera Software ASA's Presto rendering engine predated the
firm's 2013 switch to the Webkit rendering engine (which lead to Blink)
and to the Chrome V8 JavaScript engine.  

No, no legal action, just a 17 U.S.C. section 512(c)(3) aka 'DMCA'
takedown demand e-mail, with which GitHub, Inc. complied in order to
enjoy 17 U.S.C. section 512(k)(1) and 512(i) 'service provider' safe
harbour against being named as co-defendent in a possible subsequent
action for copyright violation.



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