added entity-IDs for different deployments

config/config.js

@@ -9,7 +9,9 @@ module.exports = {
       saml: {
         path: process.env.SAML_PATH || '/saml/SSO',
         entryPoint: process.env.SAML_ENTRY_POINT || 'https://transfer.hft-stuttgart.de/idp/saml2/idp/SSOService.php',
-        issuer: 'sp-account.m4lab.hft-stuttgart.de',
+        issuer: 'sp-account.m4lab.hft-stuttgart.de', //local metadata
+        //issuer: 'sp-account-test.m4lab.hft-stuttgart.de', //testing metadata
+        //issuer: 'sp-account-prod.m4lab.hft-stuttgart.de', //production metadata
         logoutUrl: 'https://transfer.hft-stuttgart.de/idp/saml2/idp/SingleLogoutService.php'
       }
     },