Hi all
I've found a what I think is a fairly serious issue with CONSTRUCT/DESCRIBE queries with Fuseki Essentially when issuing a CONSTRUCT/DESCRIBE Fuseki returns the correct results but fails to send any Content-Type header with its response so consuming clients have no idea what format Fuseki has sent the response in. At first I thought this may have been due to the resulting graph being empty but this happens regardless of whether the result graph is empty or not. An example HTTP trace from my app is included below: # HTTP DEBUGGING # HTTP Request to http://localhost:3030/dataset/query?query=DESCRIBE <http://example.org/vehicles/FordFiesta> GET Accept:application/rdf+xml,text/xml,text/plain,application/x-ntriples,text/t urtle,application/x-turtle,application/turtle,text/n3,text/rdf+n3,applicatio n/sparql-results+xml,application/sparql-results+json,application/json,text/j son,text/html,application/xhtml+xml;q=0.9,*/*;q=0.8 HTTP Response from http://localhost:3030/dataset/query?query=DESCRIBE <http://example.org/vehicles/FordFiesta> HTTP/1.1 200 OK Access-Control-Allow-Origin:* Transfer-Encoding:chunked Server:Fuseki (0.1.0) <?xml version="1.0"?> <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"; xmlns:j.0="http://example.org/vehicles/"; > <rdf:Description rdf:about="http://example.org/vehicles/FordFiesta";> <j.0:Speed rdf:datatype="http://www.w3.org/2001/XMLSchema#integer";>140</j.0:Speed> <j.0:PassengerCapacity rdf:datatype="http://www.w3.org/2001/XMLSchema#integer";>5</j.0:PassengerCapa city> <j.0:LimitedSpeed rdf:datatype="http://www.w3.org/2001/XMLSchema#integer";>120</j.0:LimitedSpee d> <rdf:type rdf:resource="http://example.org/vehicles/Car"/> </rdf:Description> </rdf:RDF> # END HTTP DEBUGGING # Note the lack of a Content-Type header. Regards Rob Vesse
