Improve the session cookie check

ssoauth/checks.py

@@ -124,10 +124,8 @@ def auth_urls_configured(app_configs, **kwargs):
 @register(Tags.security)
 def session_lifetime(app_configs, **kwargs):
     errors = list()
-    if conf.settings.SESSION_EXPIRE_AT_BROWSER_CLOSE:
-        return errors
     max_wanted = 60 * 60  # seconds
-    if conf.settings.SESSION_COOKIE_AGE > max_wanted:
+    if conf.settings.SESSION_COOKIE_AGE > max_wanted and not conf.settings.SESSION_EXPIRE_AT_BROWSER_CLOSE:
         errors.append(Error(
             "Please reduce SESSION_COOKIE_AGE to at most {max_wanted} or set SESSION_EXPIRE_AT_BROWSER_CLOSE = True".format(**locals()),
             obj=conf.settings,