About this client
Same origin is required. The endpoint validates the
Origin header against the Host and answers
403 when they differ, so this page must be served by the same host it
calls. Opened from a file, or from another host, every request will be refused — that is the
server behaving correctly, not a fault in the page.
The endpoint field defaults to this page's own origin. The token is held in
memory for the life of the page and is never stored.
Registering a view hands the materialized SPARQL to the jsui view editor, which
is where a query becomes a production endpoint. The exploration is the draft; the view is
the artifact.