diff --git a/src/sdk/IframeReference.ts b/src/sdk/IframeReference.ts
index db9fbe2d..c03f2113 100644
--- a/src/sdk/IframeReference.ts
+++ b/src/sdk/IframeReference.ts
@@ -11,11 +11,19 @@ export default class IframeReference {
       return;
     }
 
+    // Validation plus robuste
+    if (!targetOrigin || typeof targetOrigin !== 'string') {
+      console.warn("Invalid targetOrigin provided:", targetOrigin);
+      this.targetOrigin = window.location.origin; // Fallback sécurisé
+      return;
+    }
+
     try {
       new URL(targetOrigin);
       this.targetOrigin = targetOrigin;
     } catch {
-      throw new Error(`Invalid targetOrigin: ${targetOrigin}`);
+      console.warn(`Invalid targetOrigin: ${targetOrigin}, using fallback`);
+      this.targetOrigin = window.location.origin; // Fallback sécurisé
     }
   }