Warning about access token fail

src/config.js

@@ -20,6 +20,7 @@ OHIF.user.getAccessToken = () => {
   // TODO: Get the Redux store from somewhere else
   const state = window.store.getState()
   if (!state.oidc || !state.oidc.user) {
+    console.warn('failed to grab access token')
     return
   }