Merge pull request #9062 from overleaf/pairining-patch

[web] fix async form redirect handling for institutional SSO flow

GitOrigin-RevId: 35664e101e43b05771961ac4b6dc49d7ebd8fa44

services/web/app/src/Features/Authentication/AuthenticationController.js

@@ -106,7 +106,7 @@ const AuthenticationController = {
 
   finishLogin(user, req, res, next) {
     if (user === false) {
-      return res.redirect('/login')
+      return AsyncFormHelper.redirect(req, res, '/login')
     } // OAuth2 'state' mismatch
 
     if (Settings.adminOnlyLogin && !hasAdminAccess(user)) {