[Rd] Connections to https: URLs -- IE expert help needed
Prof Brian Ripley
ripley at stats.ox.ac.uk
Wed Dec 20 18:43:47 CET 2006
I've added to R-devel the ability to use download.file() and url() to
https: URLs, *only* if --internet2 is used on Windows.
This uses the Internet Explorer internals, and only works if the
certificate is accepted (so e.g. does not work for
Now I use IE (and Windows for that matter) only when really necessary, and
Firefox has simple ways to permanently accept non-verifiable certificates.
I would be grateful if someone who is much more familiar with IE could
write a note explaining how to deal with this that we could add to the
To forestall the inevitable question: there are no plans to add https:
support on any other platform, but it is something that would make a nice
project for a user contribution. The current internal code is based on
likxml2, and that AFAICS still does not have https: support.
Brian D. Ripley, ripley at stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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