I'm trying to pull PDFs from an external site by using locationmap, but it isn't working.  To test it using forrest-head's seed, I modified the locationmap by adding:

<match pattern="xForrest/**.pdf">
   <location src="http://forrest.apache.org/{1}.pdf"/>
</match>

and added this to the <about> section of site.xml:

<test label="Test" href="xForrest/license.pdf" description="Test"/>

However, it fails to find it.  Any thougths?