RDF core module doesn't seem to work after security upgrade
Here is a workaround at #9 that solved the problem for me.


  As workaround, you could use the RDFa Distiller and add the
  following code to .htaccess:


&lt;IfModule mod_rewrite.c&gt;
   RewriteEngine on 
+  # call W3C RDFa Distiller to extract .rdf/.ttl/.nt files
+  RewriteRule (.*)\.rdf$ http://www.w3.org/2012/pyRdfa/extract?uri=http://%{HTTP_HOST}/$1&amp;format=xml [L,R=307]
+  RewriteRule (.*)\.ttl$ http://www.w3.org/2012/pyRdfa/extract?uri=http://%{HTTP_HOST}/$1&amp;format=turtle [L,R=307]
+  RewriteRule (.*)\.nt$ http://www.w3.org/2012/pyRdfa/extract?uri=http://%{HTTP_HOST}/$1&amp;format=nt [L,R=307]
+
   # Set "protossl" to "s" if we were accessed via https://.  This is used later
   # if you enable "www." stripping or enforcement, in order to ensure that
   # you don't bounce between http and https.



Many thanks to jneubert!