Clojurians Log v2

Hi all, I'm using re-graph and Lacinia and seeing the following error: Firefox can't establish a connection to the server at . Everything works when I initialize re-graph like so:

(re-frame/dispatch
 [::re-graph/init {:ws nil
                   :http {
                          :supported-operations #{:query}
                          :parameters {:with-credentials? false}}}])

but it breaks down if I change this to

(re-frame/dispatch [::re-graph/init {}])

Does this mean that I haven't set up Lacinia properly to use websockets? How can I correct this?