diff --git a/server/api/controllers/show-config.js b/server/api/controllers/show-config.js
index d1dc6f67..2740cb7b 100644
--- a/server/api/controllers/show-config.js
+++ b/server/api/controllers/show-config.js
@@ -4,11 +4,16 @@ module.exports = {
     if (sails.hooks.oidc.isActive()) {
       const oidcClient = sails.hooks.oidc.getClient();
 
+      const authorizationParameters = {
+        scope: sails.config.custom.oidcScopes,
+      }
+
+      if(!sails.config.custom.oidcDefaultResponseMode) {
+        authorizationParameters.response_mode = sails.config.custom.oidcResponseMode
+      }
+
       oidc = {
-        authorizationUrl: oidcClient.authorizationUrl({
-          scope: sails.config.custom.oidcScopes,
-          response_mode: 'fragment',
-        }),
+        authorizationUrl: oidcClient.authorizationUrl(authorizationParameters),
         endSessionUrl: oidcClient.issuer.end_session_endpoint ? oidcClient.endSessionUrl({}) : null,
         isEnforced: sails.config.custom.oidcEnforced,
       };
diff --git a/server/config/custom.js b/server/config/custom.js
index ac8b9276..173e104e 100644
--- a/server/config/custom.js
+++ b/server/config/custom.js
@@ -40,6 +40,8 @@ module.exports.custom = {
   oidcClientId: process.env.OIDC_CLIENT_ID,
   oidcClientSecret: process.env.OIDC_CLIENT_SECRET,
   oidcScopes: process.env.OIDC_SCOPES || 'openid email profile',
+  oidcResponseMode: process.env.OIDC_RESPONSE_MODE || 'fragment',
+  oidcDefaultResponseMode: process.env.OIDC_DEFAULT_RESPONSE_MODE === 'true',
   oidcAdminRoles: process.env.OIDC_ADMIN_ROLES ? process.env.OIDC_ADMIN_ROLES.split(',') : [],
   oidcEmailAttribute: process.env.OIDC_EMAIL_ATTRIBUTE || 'email',
   oidcNameAttribute: process.env.OIDC_NAME_ATTRIBUTE || 'name',