diff --git a/scripts/local_vars.sh b/scripts/local_vars.sh
index b1b285c00..c452b87a1 100644
--- a/scripts/local_vars.sh
+++ b/scripts/local_vars.sh
@@ -9,5 +9,8 @@ export SESSION_SECRET="session secret"
 export REACT_APP_NOMOCK=on
 # shellcheck disable=SC2155
 export DB_PATH="$(pwd)/nodes/llmdb"
+# The following two variables can be set to see log output from dela:
 #export PROXY_LOG=info
 #export LLVL=info
+# If this is set, you can login without Gaspar
+export REACT_APP_DEV_LOGIN="true"
\ No newline at end of file
diff --git a/web/backend/src/controllers/authentication.ts b/web/backend/src/controllers/authentication.ts
index 2136c81b2..b60beb3f7 100644
--- a/web/backend/src/controllers/authentication.ts
+++ b/web/backend/src/controllers/authentication.ts
@@ -6,8 +6,8 @@ import { getUserPermissions, readSCIPER, setMapAuthorization } from '../authMana
 export const authenticationRouter = express.Router();
 
 authenticationRouter.get('/get_dev_login', (req, res) => {
-  if (process.env.NODE_ENV !== 'development') {
-    const err = `/get_dev_login can only be called in development: ${process.env.NODE_ENV}`;
+  if (process.env.REACT_APP_DEV_LOGIN !== 'true') {
+    const err = `/get_dev_login can only be called with DEV_LOGIN===true: ${process.env.DEV_LOGIN}`;
     console.error(err);
     res.status(500).send(err);
     return;
diff --git a/web/frontend/src/pages/session/HandleLogin.tsx b/web/frontend/src/pages/session/HandleLogin.tsx
index 88d5326b1..0b0891dbd 100644
--- a/web/frontend/src/pages/session/HandleLogin.tsx
+++ b/web/frontend/src/pages/session/HandleLogin.tsx
@@ -3,10 +3,11 @@ import { FlashLevel, FlashState } from 'index';
 
 // The backend will provide the client the URL to make a Tequila authentication.
 // We therefore redirect to this address.
+// If REACT_APP_DEV_LOGIN === "true", we allow an automatic login with SCIPER 100100.
 const handleLogin = async (fctx: FlashState) => {
   try {
     let res;
-    if (process.env.NODE_ENV === 'development') {
+    if (process.env.REACT_APP_DEV_LOGIN === 'true') {
       await fetch(ENDPOINT_DEV_LOGIN);
       window.location.reload();
       return;