diff --git a/README.md b/README.md
index 0992906..cb84a90 100644
--- a/README.md
+++ b/README.md
@@ -89,7 +89,7 @@ class _MyAppState extends State<MyApp> {
 }
 ```
 
-You can also configure `region`, `endpoint` and `endpointFallbacks` in the `initFpjs` method, like below. For the web platform, you can use an additional `scriptUrlPattern` property to specify a custom URL for loading the JavaScript agent. This is required for proxy integrations.
+You can also configure `region`, `endpoint` and `endpointFallbacks` in the `initFpjs` method, like below. For the web platform, you can use an additional `scriptUrlPattern` and `scriptUrlPatternFallbacks` properties to specify a custom URL for loading the JavaScript agent. This is required for proxy integrations.
 ```dart
 void doInit() async {
   await FpjsProPlugin.initFpjs(
@@ -98,7 +98,8 @@ void doInit() async {
     endpointFallbacks: ['https://subdomain2.domain.com', 'https://subdomain3.domain.com'],
     region: Region.eu, // or Region.ap, Region.us
     // Only necessary for the web platform
-    scriptUrlPattern: 'https://your.domain/fp_js/script_path?apiKey=<apiKey>&version=<version>&loaderVersion=<loaderVersion>'
+    scriptUrlPattern: 'https://your.domain/fp_js/script_path?apiKey=<apiKey>&version=<version>&loaderVersion=<loaderVersion>',
+    scriptUrlPatternFallbacks: ['https://your.second-domain/fp_js/script_path?apiKey=<apiKey>&version=<version>&loaderVersion=<loaderVersion>']
   );
 }
 ```
diff --git a/lib/fpjs_pro_plugin.dart b/lib/fpjs_pro_plugin.dart
index ccd83dd..730fd35 100644
--- a/lib/fpjs_pro_plugin.dart
+++ b/lib/fpjs_pro_plugin.dart
@@ -26,6 +26,7 @@ class FpjsProPlugin {
       {String? endpoint,
       List<String>? endpointFallbacks,
       String? scriptUrlPattern,
+      List<String>? scriptUrlPatternFallbacks,
       Region? region,
       bool extendedResponseFormat = false}) async {
     await _channel.invokeMethod('init', {
@@ -33,6 +34,7 @@ class FpjsProPlugin {
       'endpoint': endpoint,
       'endpointFallbacks': endpointFallbacks,
       'scriptUrlPattern': scriptUrlPattern,
+      'scriptUrlPatternFallbacks': scriptUrlPatternFallbacks,
       'region': region?.stringValue,
       'extendedResponseFormat': extendedResponseFormat,
       'pluginVersion': pluginVersion,
diff --git a/lib/fpjs_pro_plugin_web.dart b/lib/fpjs_pro_plugin_web.dart
index 1958bcf..6caa305 100644
--- a/lib/fpjs_pro_plugin_web.dart
+++ b/lib/fpjs_pro_plugin_web.dart
@@ -75,7 +75,10 @@ class FpjsProPluginWeb {
       ];
     }
     if (call.arguments['scriptUrlPattern'] != null) {
-      options.scriptUrlPattern = call.arguments['scriptUrlPattern'];
+      options.scriptUrlPattern = [
+        call.arguments['scriptUrlPattern'],
+        ...(call.arguments['scriptUrlPatternFallbacks'] ?? [])
+      ];
     }
     try {
       _fpPromise = promiseToFuture(FingerprintJS.load(options));
diff --git a/lib/js_agent_interop.dart b/lib/js_agent_interop.dart
index bd0c772..692b8f9 100644
--- a/lib/js_agent_interop.dart
+++ b/lib/js_agent_interop.dart
@@ -220,8 +220,8 @@ class FingerprintJSOptions {
   /// - <version> — the major version of JS agent;
   /// - <apiKey> — the public key set via the `apiKey` option;
   /// - <loaderVersion> — the version of this package;
-  external String? get scriptUrlPattern;
-  external set scriptUrlPattern(String? scriptUrlPattern);
+  external List<String>? get scriptUrlPattern;
+  external set scriptUrlPattern(List<String>? scriptUrlPattern);
 
   external factory FingerprintJSOptions(
       {String apiKey, List<String> integrationInfo});