cors error when loading json files

Is this quite expected with json-ld files, such as the example at json-ld.org?

Cross-Origin Request Blocked: The Same Origin Policy disallows reading
the remote resource at http://json-ld.org/contexts/person.jsonld.
(Reason: CORS header ‘Access-Control-Allow-Origin’ does not match ‘*,
*’).  (unknown)

-Brent Shambaugh

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Received on Thursday, 23 March 2017 17:13:34 UTC