Merge branch 'dev-nico' into 'master'

fixed loading error on '/esap-gui/interactive' url

See merge request astron-sdc/esap-gui!29

src/components/Interactive.js

@@ -10,6 +10,10 @@ export default  function Interactive() {
     {"name" : "CTA DIRAC", "url" : "https://ccdcta-web.in2p3.fr/DIRAC/"},
   ]
 
+  if ((!list_of_jnotebooks) || (!list_of_jhubs) || (!list_of_batchsystems)) {
+    return null
+  }
+
   return (
     <Container fluid>
     <Form className="mt-5">

src/routes/Routes.js

@@ -72,7 +72,7 @@ export default function Routes() {
 
         </Switch>
 
-      <footer><small>esap-gui version 2 jul 2021 - 14:00</small></footer>
+      <footer><small>esap-gui version 2 jul 2021 - 15:00</small></footer>
     </Router>
   );
 }