[Bug-wget] Implementation suggestion for JavaScript execution

[Andrew Pennebaker]

Purpose:

Tumblr and other websites delay loading some of their content (images)
through JavaScript events like *onload*. It would be nice if wget supported
a *-j* flag for executing this, in order to access these dynamically loaded
resources. Execution may add some time to downloads, but for users that
really want the content, having the option is better than not.

Possible solutions:

The HtmlUnit <http://htmlunit.sourceforge.net/> library can already do
this, but it's written in Java and I believe wget is written in C?

Another consideration for attaching JS execution to wget is
Node<http://nodejs.org/>, a
C++ implementation, though we probably only want the core, the
V8<https://code.google.com/p/v8/>JavaScript engine itself.

Other possibilities include
SpiderMonkey<http://en.wikipedia.org/wiki/SpiderMonkey_(JavaScript_engine)>,
the JS engine for Firefox, or
JavaScriptCore<http://www.webkit.org/projects/javascript/>,
Safari's JS engine.

-- 
Cheers,

Andrew Pennebaker
www.yellosoft.us