send index.html

compendium_v2/routes/default.py

@@ -67,7 +67,7 @@ def survey_index(path):
 
     # fallback to serving the SPA through index.html for all other requests
     # https://flask.palletsprojects.com/en/2.0.x/patterns/singlepageapplications/
-    return current_app.send_static_file("survey.html")
+    return current_app.send_static_file("index.html")
 
 
 @routes.route('/version', methods=['GET', 'POST'])