pdfdoc can't convert markdown files with url's to images in them

[purpleidea]

This looks like:

jgm/pandoc#826

For example:

pandoc README.md -o test.pdf
Fetching https://secure.travis-ci.org/purpleidea/puppet-gluster.png...
pandoc: Could not find image `https://secure.travis-ci.org/purpleidea/puppet-gluster.png', skipping...
pandoc: Error producing PDF from TeX source.
! Package pdftex.def Error: File `https://secure.travis-ci.org/purpleidea/puppe
t-gluster.png' not found.

See the pdftex.def package documentation for explanation.
Type  H   for immediate help.
 ...                                              
                                                  
l.72 ...vis-ci.org/purpleidea/puppet-gluster.png}}

[JJ]

+1