The pdf export of MP2 seems unable to resolve images. I have tags like these in my document:
<img src="http://yuml.me/diagram/scruffy/class/[Customer]->[Billing Address]" >. MP asks for proxy credentials to render the preview, so preview works fine. Unfortunately the pdf export cannot resolve the images. It generates the pdf in the end, but it has no images. How do I get the pdf export module to resolve the images?