diff --git a/CHANGELOG.md b/CHANGELOG.md
index 60037b977..9cf8556c3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file, per [the Ke
 
 ## [Unreleased] - TBD
 
+### Fixed
+
+- Settings page no longer crashes to a blank screen when `window.classifAISettings` is undefined (for example when a caching or optimization plugin changes script order); the settings data is now read defensively (props [@thisismyurl](https://github.com/thisismyurl) via [#1135](https://github.com/10up/classifai/pull/1135)).
+
 ## [3.8.0] - 2026-03-20
 
 ### Added
diff --git a/src/js/settings/components/classifai-settings/index.js b/src/js/settings/components/classifai-settings/index.js
index 05cf1678d..5c2fa53a2 100644
--- a/src/js/settings/components/classifai-settings/index.js
+++ b/src/js/settings/components/classifai-settings/index.js
@@ -31,7 +31,7 @@ import { ClassifAIRegistration } from '../classifai-registration';
 import { ClassifAIWelcomeGuide } from './welcome-guide';
 import { Notices } from '../feature-settings/notices';
 
-const { services, features } = window.classifAISettings;
+const { services = {}, features = {} } = window.classifAISettings || {};
 
 /**
  * FeatureSettingsWrapper component to render the feature settings.
@@ -43,6 +43,13 @@ const FeatureSettingsWrapper = () => {
 	const { service, feature } = useParams();
 	const serviceFeatures = Object.keys( features[ service ] || {} );
 
+	// When the settings data is unavailable (for example the global was
+	// missing) there is no feature to route to, so render nothing rather than
+	// navigating to an undefined path.
+	if ( ! serviceFeatures.length ) {
+		return null;
+	}
+
 	if ( ! serviceFeatures.includes( feature ) ) {
 		return <Navigate to={ serviceFeatures[ 0 ] } replace />;
 	}