diff --git a/src/Oro/Bundle/SyncBundle/Resources/views/sync_js.html.twig b/src/Oro/Bundle/SyncBundle/Resources/views/sync_js.html.twig
index fa9e88d9bd3..4f200314f4f 100644
--- a/src/Oro/Bundle/SyncBundle/Resources/views/sync_js.html.twig
+++ b/src/Oro/Bundle/SyncBundle/Resources/views/sync_js.html.twig
@@ -9,7 +9,7 @@
         });
 
         sync(new Wamp({
-            secure: {{ app.request.headers.get('X-Forwarded-Proto') == 'https' ? 'true' : 'false' }},
+            secure: {{ app.request.headers.get('X-Forwarded-Proto') == 'https' or app.request.isSecure() ? 'true' : 'false' }},
             host: '{{ ws.host == '*' ? app.request.headers.get('host') : ws.host }}',
             port: {{ ws.port|json_encode|raw }},
             maxRetries: 3,