diff --git a/spec/system/support/cuprite_setup.rb b/spec/system/support/cuprite_setup.rb
index 9d89e056345..8d20148feb7 100644
--- a/spec/system/support/cuprite_setup.rb
+++ b/spec/system/support/cuprite_setup.rb
@@ -15,7 +15,7 @@
     process_timeout: 60,
     timeout: 60,
     # Don't load scripts from external sources, like google maps or stripe
-    url_whitelist: ["http://localhost", "http://0.0.0.0", "http://127.0.0.1"],
+    url_whitelist: [%r{http://localhost}i, %r{http://0.0.0.0}i, %r{http://127.0.0.1}],
     inspector: true,
     headless:,
     js_errors: true