title: Unable to load a JSON-LD remote context
body: <p>I am experimenting with JSON-LD and I am having a problem loading a remote context, I keep getting the error “Derefencing a URL did not result in a valid JSON-LD object”.</p>
  
  <p>I have copied the context from <a href="http://json-ld.org/contexts/person" rel="nofollow">http://json-ld.org/contexts/person</a> to our server (<a href="http://vocab.lappsgrid.org/person.jsonld" rel="nofollow">http://vocab.lappsgrid.org/person.jsonld</a>) and I am testing on the JSON-LD playground (<a href="http://json-ld.org/playground/" rel="nofollow">http://json-ld.org/playground/</a>).  My first thought was that the content-type of the returned document is incorrect, but I’ve double checked and the content-type is application/ld+json so I do not know what else could be wrong; as far as I can tell the two contexts are identical, as are all relevant header fields.</p>
  
  <p>Can anyone spot the problem?</p>