All configuration options are ignored
because the request is handled by the browser, not
RCurl.
url
the url of the page to retrieve
...
Further parameters, such as query,
path, etc, passed on to modify_url.
These parameters must be named.
handle
The handle to use with this request. If not
supplied, will be retrieved and reused from the
handle_pool based on the scheme, hostname
and port of the url. By default httr requests to