Tell developer about SESSION_EXPIRE_AT_BROWSER_CLOSE

ssoauth/checks.py

@@ -129,7 +129,7 @@ def session_lifetime(app_configs, **kwargs):
     max_wanted = 60 * 60  # seconds
     if conf.settings.SESSION_COOKIE_AGE > max_wanted:
         errors.append(Error(
-            "Please reduce SESSION_COOKIE_AGE to at most {max_wanted}".format(**locals()),
+            "Please reduce SESSION_COOKIE_AGE to at most {max_wanted} or set SESSION_EXPIRE_AT_BROWSER_CLOSE = True".format(**locals()),
             obj=conf.settings,
         ))
     return errors